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authorFrederic Weisbecker <fweisbec@gmail.com>2010-08-09 01:49:58 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2010-08-09 02:14:15 +0200
commitd9a145fb6e5f37b9903dea8371ab5c3e34e8e2d1 (patch)
treee2b4bb46fa00f0ad20447e40dba6fb21a4ae0815 /fs
parentc9243f5bdd6637b2bb7dc254b54d9edf957ef17e (diff)
parent45d7f32c7a43cbb9592886d38190e379e2eb2226 (diff)
downloadop-kernel-dev-d9a145fb6e5f37b9903dea8371ab5c3e34e8e2d1.zip
op-kernel-dev-d9a145fb6e5f37b9903dea8371ab5c3e34e8e2d1.tar.gz
Merge commit 'linus/master' into bkl/core
Merge reason: The staging tree has introduced the easycap driver lately. We need the latest updates to pushdown the bkl in its ioctl helper.
Diffstat (limited to 'fs')
-rw-r--r--fs/9p/Makefile4
-rw-r--r--fs/9p/fid.c111
-rw-r--r--fs/9p/v9fs.c3
-rw-r--r--fs/9p/v9fs.h1
-rw-r--r--fs/9p/v9fs_vfs.h1
-rw-r--r--fs/9p/vfs_dir.c136
-rw-r--r--fs/9p/vfs_file.c26
-rw-r--r--fs/9p/vfs_inode.c757
-rw-r--r--fs/9p/vfs_super.c50
-rw-r--r--fs/9p/xattr.c160
-rw-r--r--fs/9p/xattr.h27
-rw-r--r--fs/9p/xattr_user.c80
-rw-r--r--fs/Kconfig2
-rw-r--r--fs/afs/Kconfig1
-rw-r--r--fs/afs/cell.c40
-rw-r--r--fs/afs/main.c9
-rw-r--r--fs/afs/write.c1
-rw-r--r--fs/aio.c21
-rw-r--r--fs/befs/linuxvfs.c2
-rw-r--r--fs/block_dev.c4
-rw-r--r--fs/btrfs/ctree.c129
-rw-r--r--fs/btrfs/extent_io.c2
-rw-r--r--fs/btrfs/ioctl.c20
-rw-r--r--fs/cachefiles/namei.c13
-rw-r--r--fs/cachefiles/rdwr.c4
-rw-r--r--fs/ceph/Kconfig2
-rw-r--r--fs/ceph/auth_x.c5
-rw-r--r--fs/ceph/caps.c36
-rw-r--r--fs/ceph/crush/mapper.c41
-rw-r--r--fs/ceph/debugfs.c2
-rw-r--r--fs/ceph/dir.c13
-rw-r--r--fs/ceph/file.c2
-rw-r--r--fs/ceph/inode.c25
-rw-r--r--fs/ceph/mds_client.c51
-rw-r--r--fs/ceph/mds_client.h1
-rw-r--r--fs/ceph/messenger.c75
-rw-r--r--fs/ceph/mon_client.c9
-rw-r--r--fs/ceph/osd_client.c9
-rw-r--r--fs/ceph/osdmap.c28
-rw-r--r--fs/char_dev.c1
-rw-r--r--fs/cifs/Kconfig27
-rw-r--r--fs/cifs/Makefile2
-rw-r--r--fs/cifs/README5
-rw-r--r--fs/cifs/cache.c331
-rw-r--r--fs/cifs/cifs_debug.c25
-rw-r--r--fs/cifs/cifs_dfs_ref.c33
-rw-r--r--fs/cifs/cifs_fs_sb.h1
-rw-r--r--fs/cifs/cifs_spnego.c7
-rw-r--r--fs/cifs/cifsfs.c33
-rw-r--r--fs/cifs/cifsfs.h2
-rw-r--r--fs/cifs/cifsglob.h48
-rw-r--r--fs/cifs/cifsproto.h4
-rw-r--r--fs/cifs/connect.c181
-rw-r--r--fs/cifs/dir.c8
-rw-r--r--fs/cifs/dns_resolve.c166
-rw-r--r--fs/cifs/dns_resolve.h2
-rw-r--r--fs/cifs/file.c104
-rw-r--r--fs/cifs/fscache.c236
-rw-r--r--fs/cifs/fscache.h136
-rw-r--r--fs/cifs/inode.c63
-rw-r--r--fs/cifs/ioctl.c3
-rw-r--r--fs/cifs/misc.c20
-rw-r--r--fs/cifs/netmisc.c63
-rw-r--r--fs/cifs/readdir.c5
-rw-r--r--fs/cifs/smberr.h1
-rw-r--r--fs/compat.c2
-rw-r--r--fs/compat_ioctl.c11
-rw-r--r--fs/dcache.c2
-rw-r--r--fs/direct-io.c26
-rw-r--r--fs/dlm/lowcomms.c2
-rw-r--r--fs/dlm/netlink.c15
-rw-r--r--fs/ecryptfs/crypto.c2
-rw-r--r--fs/ecryptfs/messaging.c17
-rw-r--r--fs/exec.c8
-rw-r--r--fs/ext3/Kconfig1
-rw-r--r--fs/ext3/inode.c80
-rw-r--r--fs/ext3/namei.c3
-rw-r--r--fs/ext3/resize.c2
-rw-r--r--fs/ext3/super.c17
-rw-r--r--fs/ext4/acl.c1
-rw-r--r--fs/ext4/balloc.c6
-rw-r--r--fs/ext4/block_validity.c8
-rw-r--r--fs/ext4/dir.c23
-rw-r--r--fs/ext4/ext4.h152
-rw-r--r--fs/ext4/ext4_jbd2.c71
-rw-r--r--fs/ext4/ext4_jbd2.h56
-rw-r--r--fs/ext4/extents.c20
-rw-r--r--fs/ext4/file.c5
-rw-r--r--fs/ext4/ialloc.c4
-rw-r--r--fs/ext4/inode.c205
-rw-r--r--fs/ext4/mballoc.c155
-rw-r--r--fs/ext4/migrate.c2
-rw-r--r--fs/ext4/move_extent.c10
-rw-r--r--fs/ext4/namei.c40
-rw-r--r--fs/ext4/resize.c8
-rw-r--r--fs/ext4/super.c336
-rw-r--r--fs/ext4/xattr.c3
-rw-r--r--fs/file.c3
-rw-r--r--fs/freevxfs/vxfs_super.c2
-rw-r--r--fs/fs-writeback.c335
-rw-r--r--fs/fscache/Kconfig1
-rw-r--r--fs/fscache/internal.h8
-rw-r--r--fs/fscache/main.c106
-rw-r--r--fs/fscache/object-list.c11
-rw-r--r--fs/fscache/object.c106
-rw-r--r--fs/fscache/operation.c67
-rw-r--r--fs/fscache/page.c36
-rw-r--r--fs/fuse/dev.c229
-rw-r--r--fs/fuse/dir.c2
-rw-r--r--fs/fuse/file.c2
-rw-r--r--fs/fuse/fuse_i.h3
-rw-r--r--fs/gfs2/Kconfig1
-rw-r--r--fs/gfs2/aops.c9
-rw-r--r--fs/gfs2/bmap.c18
-rw-r--r--fs/gfs2/bmap.h2
-rw-r--r--fs/gfs2/dir.c44
-rw-r--r--fs/gfs2/file.c4
-rw-r--r--fs/gfs2/glock.c97
-rw-r--r--fs/gfs2/incore.h4
-rw-r--r--fs/gfs2/inode.c12
-rw-r--r--fs/gfs2/main.c14
-rw-r--r--fs/gfs2/ops_fstype.c35
-rw-r--r--fs/gfs2/quota.c35
-rw-r--r--fs/gfs2/quota.h2
-rw-r--r--fs/gfs2/recovery.c54
-rw-r--r--fs/gfs2/recovery.h6
-rw-r--r--fs/gfs2/super.c9
-rw-r--r--fs/gfs2/sys.c60
-rw-r--r--fs/inode.c2
-rw-r--r--fs/jbd/journal.c7
-rw-r--r--fs/jbd/recovery.c11
-rw-r--r--fs/jbd2/checkpoint.c18
-rw-r--r--fs/jbd2/commit.c50
-rw-r--r--fs/jbd2/journal.c136
-rw-r--r--fs/jbd2/recovery.c10
-rw-r--r--fs/jbd2/transaction.c242
-rw-r--r--fs/jffs2/xattr.c2
-rw-r--r--fs/mbcache.c5
-rw-r--r--fs/namei.c6
-rw-r--r--fs/ncpfs/inode.c4
-rw-r--r--fs/nfs/Kconfig10
-rw-r--r--fs/nfs/callback_proc.c19
-rw-r--r--fs/nfs/client.c21
-rw-r--r--fs/nfs/delegation.c16
-rw-r--r--fs/nfs/delegation.h4
-rw-r--r--fs/nfs/dir.c13
-rw-r--r--fs/nfs/direct.c29
-rw-r--r--fs/nfs/file.c64
-rw-r--r--fs/nfs/inode.c74
-rw-r--r--fs/nfs/internal.h10
-rw-r--r--fs/nfs/nfs2xdr.c7
-rw-r--r--fs/nfs/nfs3xdr.c8
-rw-r--r--fs/nfs/nfs4_fs.h57
-rw-r--r--fs/nfs/nfs4proc.c474
-rw-r--r--fs/nfs/nfs4renewd.c4
-rw-r--r--fs/nfs/nfs4state.c82
-rw-r--r--fs/nfs/nfs4xdr.c107
-rw-r--r--fs/nfs/nfsroot.c2
-rw-r--r--fs/nfs/pagelist.c8
-rw-r--r--fs/nfs/read.c3
-rw-r--r--fs/nfs/super.c4
-rw-r--r--fs/nfs/unlink.c2
-rw-r--r--fs/nfs/write.c39
-rw-r--r--fs/nfsd/nfs3proc.c8
-rw-r--r--fs/nfsd/nfs4callback.c57
-rw-r--r--fs/nfsd/nfs4state.c381
-rw-r--r--fs/nfsd/nfs4xdr.c3
-rw-r--r--fs/nfsd/nfsctl.c24
-rw-r--r--fs/nfsd/nfsd.h1
-rw-r--r--fs/nfsd/nfsproc.c4
-rw-r--r--fs/nfsd/nfssvc.c151
-rw-r--r--fs/nfsd/state.h40
-rw-r--r--fs/nfsd/vfs.c79
-rw-r--r--fs/nfsd/vfs.h4
-rw-r--r--fs/nilfs2/bmap.c6
-rw-r--r--fs/nilfs2/bmap.h16
-rw-r--r--fs/nilfs2/bmap_union.h42
-rw-r--r--fs/nilfs2/btnode.c23
-rw-r--r--fs/nilfs2/btnode.h4
-rw-r--r--fs/nilfs2/btree.c914
-rw-r--r--fs/nilfs2/btree.h12
-rw-r--r--fs/nilfs2/dir.c33
-rw-r--r--fs/nilfs2/direct.c96
-rw-r--r--fs/nilfs2/direct.h11
-rw-r--r--fs/nilfs2/gcinode.c17
-rw-r--r--fs/nilfs2/mdt.c1
-rw-r--r--fs/nilfs2/nilfs.h22
-rw-r--r--fs/nilfs2/page.c5
-rw-r--r--fs/nilfs2/page.h2
-rw-r--r--fs/nilfs2/recovery.c348
-rw-r--r--fs/nilfs2/segbuf.h24
-rw-r--r--fs/nilfs2/segment.c19
-rw-r--r--fs/nilfs2/segment.h10
-rw-r--r--fs/nilfs2/super.c333
-rw-r--r--fs/nilfs2/the_nilfs.c161
-rw-r--r--fs/nilfs2/the_nilfs.h23
-rw-r--r--fs/ocfs2/aops.c101
-rw-r--r--fs/ocfs2/dlm/dlmdebug.c6
-rw-r--r--fs/ocfs2/dlm/dlmdomain.c3
-rw-r--r--fs/ocfs2/dlm/dlmmaster.c22
-rw-r--r--fs/ocfs2/dlm/dlmrecovery.c2
-rw-r--r--fs/ocfs2/dlmfs/dlmfs.c3
-rw-r--r--fs/ocfs2/dlmglue.c4
-rw-r--r--fs/ocfs2/file.c309
-rw-r--r--fs/ocfs2/file.h6
-rw-r--r--fs/ocfs2/journal.c34
-rw-r--r--fs/ocfs2/localalloc.c7
-rw-r--r--fs/ocfs2/quota_global.c2
-rw-r--r--fs/ocfs2/quota_local.c4
-rw-r--r--fs/ocfs2/refcounttree.c12
-rw-r--r--fs/ocfs2/suballoc.c2
-rw-r--r--fs/ocfs2/super.c2
-rw-r--r--fs/ocfs2/xattr.c200
-rw-r--r--fs/open.c11
-rw-r--r--fs/partitions/check.c1
-rw-r--r--fs/partitions/ibm.c14
-rw-r--r--fs/proc/array.c2
-rw-r--r--fs/quota/dquot.c81
-rw-r--r--fs/quota/quota_tree.c85
-rw-r--r--fs/quota/quota_tree.h6
-rw-r--r--fs/quota/quota_v1.c3
-rw-r--r--fs/quota/quota_v2.c11
-rw-r--r--fs/reiserfs/inode.c2
-rw-r--r--fs/splice.c9
-rw-r--r--fs/sysfs/file.c3
-rw-r--r--fs/sysfs/symlink.c26
-rw-r--r--fs/ubifs/lpt.c14
-rw-r--r--fs/ubifs/lpt_commit.c2
-rw-r--r--fs/ubifs/recovery.c23
-rw-r--r--fs/ubifs/shrinker.c2
-rw-r--r--fs/ubifs/super.c4
-rw-r--r--fs/ubifs/ubifs.h2
-rw-r--r--fs/udf/file.c1
-rw-r--r--fs/udf/super.c2
-rw-r--r--fs/xfs/Makefile4
-rw-r--r--fs/xfs/linux-2.6/xfs_acl.c2
-rw-r--r--fs/xfs/linux-2.6/xfs_aops.c611
-rw-r--r--fs/xfs/linux-2.6/xfs_aops.h4
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c67
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.h119
-rw-r--r--fs/xfs/linux-2.6/xfs_dmapi_priv.h28
-rw-r--r--fs/xfs/linux-2.6/xfs_export.c8
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c104
-rw-r--r--fs/xfs/linux-2.6/xfs_fs_subr.c4
-rw-r--r--fs/xfs/linux-2.6/xfs_fs_subr.h25
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.c27
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl32.c6
-rw-r--r--fs/xfs/linux-2.6/xfs_iops.c10
-rw-r--r--fs/xfs/linux-2.6/xfs_linux.h1
-rw-r--r--fs/xfs/linux-2.6/xfs_quotaops.c11
-rw-r--r--fs/xfs/linux-2.6/xfs_super.c173
-rw-r--r--fs/xfs/linux-2.6/xfs_super.h7
-rw-r--r--fs/xfs/linux-2.6/xfs_sync.c179
-rw-r--r--fs/xfs/linux-2.6/xfs_sync.h5
-rw-r--r--fs/xfs/linux-2.6/xfs_trace.c4
-rw-r--r--fs/xfs/linux-2.6/xfs_trace.h131
-rw-r--r--fs/xfs/quota/xfs_dquot.c114
-rw-r--r--fs/xfs/quota/xfs_dquot_item.c301
-rw-r--r--fs/xfs/quota/xfs_qm.c22
-rw-r--r--fs/xfs/quota/xfs_qm_bhv.c10
-rw-r--r--fs/xfs/quota/xfs_qm_stats.c10
-rw-r--r--fs/xfs/quota/xfs_qm_syscalls.c121
-rw-r--r--fs/xfs/quota/xfs_trans_dquot.c35
-rw-r--r--fs/xfs/support/debug.c1
-rw-r--r--fs/xfs/xfs_alloc.c15
-rw-r--r--fs/xfs/xfs_alloc.h20
-rw-r--r--fs/xfs/xfs_alloc_btree.c5
-rw-r--r--fs/xfs/xfs_attr.c91
-rw-r--r--fs/xfs/xfs_attr_leaf.c5
-rw-r--r--fs/xfs/xfs_bmap.c327
-rw-r--r--fs/xfs/xfs_bmap.h37
-rw-r--r--fs/xfs/xfs_bmap_btree.c5
-rw-r--r--fs/xfs/xfs_btree.c5
-rw-r--r--fs/xfs/xfs_buf_item.c228
-rw-r--r--fs/xfs/xfs_buf_item.h2
-rw-r--r--fs/xfs/xfs_da_btree.c20
-rw-r--r--fs/xfs/xfs_dfrag.c16
-rw-r--r--fs/xfs/xfs_dir2.c11
-rw-r--r--fs/xfs/xfs_dir2_block.c8
-rw-r--r--fs/xfs/xfs_dir2_data.c2
-rw-r--r--fs/xfs/xfs_dir2_leaf.c4
-rw-r--r--fs/xfs/xfs_dir2_node.c2
-rw-r--r--fs/xfs/xfs_dir2_sf.c2
-rw-r--r--fs/xfs/xfs_dmapi.h170
-rw-r--r--fs/xfs/xfs_dmops.c55
-rw-r--r--fs/xfs/xfs_error.c4
-rw-r--r--fs/xfs/xfs_extfree_item.c278
-rw-r--r--fs/xfs/xfs_filestream.c84
-rw-r--r--fs/xfs/xfs_filestream.h82
-rw-r--r--fs/xfs/xfs_fsops.c7
-rw-r--r--fs/xfs/xfs_ialloc.c4
-rw-r--r--fs/xfs/xfs_ialloc_btree.c4
-rw-r--r--fs/xfs/xfs_iget.c108
-rw-r--r--fs/xfs/xfs_inode.c60
-rw-r--r--fs/xfs/xfs_inode.h4
-rw-r--r--fs/xfs/xfs_inode_item.c273
-rw-r--r--fs/xfs/xfs_inode_item.h12
-rw-r--r--fs/xfs/xfs_iomap.c76
-rw-r--r--fs/xfs/xfs_iomap.h22
-rw-r--r--fs/xfs/xfs_itable.c8
-rw-r--r--fs/xfs/xfs_log.c16
-rw-r--r--fs/xfs/xfs_log.h11
-rw-r--r--fs/xfs/xfs_log_cil.c4
-rw-r--r--fs/xfs/xfs_log_recover.c42
-rw-r--r--fs/xfs/xfs_mount.c3
-rw-r--r--fs/xfs/xfs_mount.h71
-rw-r--r--fs/xfs/xfs_rename.c63
-rw-r--r--fs/xfs/xfs_rtalloc.c9
-rw-r--r--fs/xfs/xfs_rw.c15
-rw-r--r--fs/xfs/xfs_trans.c211
-rw-r--r--fs/xfs/xfs_trans.h117
-rw-r--r--fs/xfs/xfs_trans_ail.c1
-rw-r--r--fs/xfs/xfs_trans_buf.c75
-rw-r--r--fs/xfs/xfs_trans_extfree.c23
-rw-r--r--fs/xfs/xfs_trans_inode.c74
-rw-r--r--fs/xfs/xfs_trans_item.c441
-rw-r--r--fs/xfs/xfs_trans_priv.h18
-rw-r--r--fs/xfs/xfs_utils.c87
-rw-r--r--fs/xfs/xfs_utils.h1
-rw-r--r--fs/xfs/xfs_vnodeops.c293
320 files changed, 9330 insertions, 7912 deletions
diff --git a/fs/9p/Makefile b/fs/9p/Makefile
index 1a940ec..91fba02 100644
--- a/fs/9p/Makefile
+++ b/fs/9p/Makefile
@@ -8,6 +8,8 @@ obj-$(CONFIG_9P_FS) := 9p.o
vfs_dir.o \
vfs_dentry.o \
v9fs.o \
- fid.o
+ fid.o \
+ xattr.o \
+ xattr_user.o
9p-$(CONFIG_9P_FSCACHE) += cache.o
diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index 7317b39..3585636 100644
--- a/fs/9p/fid.c
+++ b/fs/9p/fid.c
@@ -97,6 +97,34 @@ static struct p9_fid *v9fs_fid_find(struct dentry *dentry, u32 uid, int any)
return ret;
}
+/*
+ * We need to hold v9ses->rename_sem as long as we hold references
+ * to returned path array. Array element contain pointers to
+ * dentry names.
+ */
+static int build_path_from_dentry(struct v9fs_session_info *v9ses,
+ struct dentry *dentry, char ***names)
+{
+ int n = 0, i;
+ char **wnames;
+ struct dentry *ds;
+
+ for (ds = dentry; !IS_ROOT(ds); ds = ds->d_parent)
+ n++;
+
+ wnames = kmalloc(sizeof(char *) * n, GFP_KERNEL);
+ if (!wnames)
+ goto err_out;
+
+ for (ds = dentry, i = (n-1); i >= 0; i--, ds = ds->d_parent)
+ wnames[i] = (char *)ds->d_name.name;
+
+ *names = wnames;
+ return n;
+err_out:
+ return -ENOMEM;
+}
+
/**
* v9fs_fid_lookup - lookup for a fid, try to walk if not found
* @dentry: dentry to look for fid in
@@ -112,7 +140,7 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
int i, n, l, clone, any, access;
u32 uid;
struct p9_fid *fid, *old_fid = NULL;
- struct dentry *d, *ds;
+ struct dentry *ds;
struct v9fs_session_info *v9ses;
char **wnames, *uname;
@@ -139,49 +167,62 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
fid = v9fs_fid_find(dentry, uid, any);
if (fid)
return fid;
-
+ /*
+ * we don't have a matching fid. To do a TWALK we need
+ * parent fid. We need to prevent rename when we want to
+ * look at the parent.
+ */
+ down_read(&v9ses->rename_sem);
ds = dentry->d_parent;
fid = v9fs_fid_find(ds, uid, any);
- if (!fid) { /* walk from the root */
- n = 0;
- for (ds = dentry; !IS_ROOT(ds); ds = ds->d_parent)
- n++;
+ if (fid) {
+ /* Found the parent fid do a lookup with that */
+ fid = p9_client_walk(fid, 1, (char **)&dentry->d_name.name, 1);
+ goto fid_out;
+ }
+ up_read(&v9ses->rename_sem);
- fid = v9fs_fid_find(ds, uid, any);
- if (!fid) { /* the user is not attached to the fs yet */
- if (access == V9FS_ACCESS_SINGLE)
- return ERR_PTR(-EPERM);
+ /* start from the root and try to do a lookup */
+ fid = v9fs_fid_find(dentry->d_sb->s_root, uid, any);
+ if (!fid) {
+ /* the user is not attached to the fs yet */
+ if (access == V9FS_ACCESS_SINGLE)
+ return ERR_PTR(-EPERM);
- if (v9fs_proto_dotu(v9ses))
+ if (v9fs_proto_dotu(v9ses) || v9fs_proto_dotl(v9ses))
uname = NULL;
- else
- uname = v9ses->uname;
+ else
+ uname = v9ses->uname;
- fid = p9_client_attach(v9ses->clnt, NULL, uname, uid,
- v9ses->aname);
-
- if (IS_ERR(fid))
- return fid;
-
- v9fs_fid_add(ds, fid);
- }
- } else /* walk from the parent */
- n = 1;
+ fid = p9_client_attach(v9ses->clnt, NULL, uname, uid,
+ v9ses->aname);
+ if (IS_ERR(fid))
+ return fid;
- if (ds == dentry)
+ v9fs_fid_add(dentry->d_sb->s_root, fid);
+ }
+ /* If we are root ourself just return that */
+ if (dentry->d_sb->s_root == dentry)
return fid;
-
- wnames = kmalloc(sizeof(char *) * n, GFP_KERNEL);
- if (!wnames)
- return ERR_PTR(-ENOMEM);
-
- for (d = dentry, i = (n-1); i >= 0; i--, d = d->d_parent)
- wnames[i] = (char *) d->d_name.name;
-
+ /*
+ * Do a multipath walk with attached root.
+ * When walking parent we need to make sure we
+ * don't have a parallel rename happening
+ */
+ down_read(&v9ses->rename_sem);
+ n = build_path_from_dentry(v9ses, dentry, &wnames);
+ if (n < 0) {
+ fid = ERR_PTR(n);
+ goto err_out;
+ }
clone = 1;
i = 0;
while (i < n) {
l = min(n - i, P9_MAXWELEM);
+ /*
+ * We need to hold rename lock when doing a multipath
+ * walk to ensure none of the patch component change
+ */
fid = p9_client_walk(fid, l, &wnames[i], clone);
if (IS_ERR(fid)) {
if (old_fid) {
@@ -193,15 +234,17 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
p9_client_clunk(old_fid);
}
kfree(wnames);
- return fid;
+ goto err_out;
}
old_fid = fid;
i += l;
clone = 0;
}
-
kfree(wnames);
+fid_out:
v9fs_fid_add(dentry, fid);
+err_out:
+ up_read(&v9ses->rename_sem);
return fid;
}
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index f8b86e9..38dc0e0 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -237,6 +237,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
__putname(v9ses->uname);
return ERR_PTR(-ENOMEM);
}
+ init_rwsem(&v9ses->rename_sem);
rc = bdi_setup_and_register(&v9ses->bdi, "9p", BDI_CAP_MAP_COPY);
if (rc) {
@@ -278,7 +279,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ;
/* for legacy mode, fall back to V9FS_ACCESS_ANY */
- if (!v9fs_proto_dotu(v9ses) &&
+ if (!(v9fs_proto_dotu(v9ses) || v9fs_proto_dotl(v9ses)) &&
((v9ses->flags&V9FS_ACCESS_MASK) == V9FS_ACCESS_USER)) {
v9ses->flags &= ~V9FS_ACCESS_MASK;
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index bec4d0b..4c963c9 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -104,6 +104,7 @@ struct v9fs_session_info {
struct p9_client *clnt; /* 9p client */
struct list_head slist; /* list of sessions registered with v9fs */
struct backing_dev_info bdi;
+ struct rw_semaphore rename_sem;
};
struct p9_fid *v9fs_session_init(struct v9fs_session_info *, const char *,
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index 32ef400..f47c6bb 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -55,6 +55,7 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode);
void v9fs_clear_inode(struct inode *inode);
ino_t v9fs_qid2ino(struct p9_qid *qid);
void v9fs_stat2inode(struct p9_wstat *, struct inode *, struct super_block *);
+void v9fs_stat2inode_dotl(struct p9_stat_dotl *, struct inode *);
int v9fs_dir_release(struct inode *inode, struct file *filp);
int v9fs_file_open(struct inode *inode, struct file *file);
void v9fs_inode2stat(struct inode *inode, struct p9_wstat *stat);
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index d61e3b2..16c8a2a 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -87,29 +87,19 @@ static void p9stat_init(struct p9_wstat *stbuf)
}
/**
- * v9fs_dir_readdir - read a directory
+ * v9fs_alloc_rdir_buf - Allocate buffer used for read and readdir
* @filp: opened file structure
- * @dirent: directory structure ???
- * @filldir: function to populate directory structure ???
+ * @buflen: Length in bytes of buffer to allocate
*
*/
-static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
+static int v9fs_alloc_rdir_buf(struct file *filp, int buflen)
{
- int over;
- struct p9_wstat st;
- int err = 0;
- struct p9_fid *fid;
- int buflen;
- int reclen = 0;
struct p9_rdir *rdir;
+ struct p9_fid *fid;
+ int err = 0;
- P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
fid = filp->private_data;
-
- buflen = fid->clnt->msize - P9_IOHDRSZ;
-
- /* allocate rdir on demand */
if (!fid->rdir) {
rdir = kmalloc(sizeof(struct p9_rdir) + buflen, GFP_KERNEL);
@@ -128,6 +118,36 @@ static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
spin_unlock(&filp->f_dentry->d_lock);
kfree(rdir);
}
+exit:
+ return err;
+}
+
+/**
+ * v9fs_dir_readdir - read a directory
+ * @filp: opened file structure
+ * @dirent: directory structure ???
+ * @filldir: function to populate directory structure ???
+ *
+ */
+
+static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+ int over;
+ struct p9_wstat st;
+ int err = 0;
+ struct p9_fid *fid;
+ int buflen;
+ int reclen = 0;
+ struct p9_rdir *rdir;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
+ fid = filp->private_data;
+
+ buflen = fid->clnt->msize - P9_IOHDRSZ;
+
+ err = v9fs_alloc_rdir_buf(filp, buflen);
+ if (err)
+ goto exit;
rdir = (struct p9_rdir *) fid->rdir;
err = mutex_lock_interruptible(&rdir->mutex);
@@ -146,7 +166,7 @@ static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
while (rdir->head < rdir->tail) {
p9stat_init(&st);
err = p9stat_read(rdir->buf + rdir->head,
- buflen - rdir->head, &st,
+ rdir->tail - rdir->head, &st,
fid->clnt->proto_version);
if (err) {
P9_DPRINTK(P9_DEBUG_VFS, "returned %d\n", err);
@@ -176,6 +196,88 @@ exit:
return err;
}
+/**
+ * v9fs_dir_readdir_dotl - read a directory
+ * @filp: opened file structure
+ * @dirent: buffer to fill dirent structures
+ * @filldir: function to populate dirent structures
+ *
+ */
+static int v9fs_dir_readdir_dotl(struct file *filp, void *dirent,
+ filldir_t filldir)
+{
+ int over;
+ int err = 0;
+ struct p9_fid *fid;
+ int buflen;
+ struct p9_rdir *rdir;
+ struct p9_dirent curdirent;
+ u64 oldoffset = 0;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
+ fid = filp->private_data;
+
+ buflen = fid->clnt->msize - P9_READDIRHDRSZ;
+
+ err = v9fs_alloc_rdir_buf(filp, buflen);
+ if (err)
+ goto exit;
+ rdir = (struct p9_rdir *) fid->rdir;
+
+ err = mutex_lock_interruptible(&rdir->mutex);
+ if (err)
+ return err;
+
+ while (err == 0) {
+ if (rdir->tail == rdir->head) {
+ err = p9_client_readdir(fid, rdir->buf, buflen,
+ filp->f_pos);
+ if (err <= 0)
+ goto unlock_and_exit;
+
+ rdir->head = 0;
+ rdir->tail = err;
+ }
+
+ while (rdir->head < rdir->tail) {
+
+ err = p9dirent_read(rdir->buf + rdir->head,
+ buflen - rdir->head, &curdirent,
+ fid->clnt->proto_version);
+ if (err < 0) {
+ P9_DPRINTK(P9_DEBUG_VFS, "returned %d\n", err);
+ err = -EIO;
+ goto unlock_and_exit;
+ }
+
+ /* d_off in dirent structure tracks the offset into
+ * the next dirent in the dir. However, filldir()
+ * expects offset into the current dirent. Hence
+ * while calling filldir send the offset from the
+ * previous dirent structure.
+ */
+ over = filldir(dirent, curdirent.d_name,
+ strlen(curdirent.d_name),
+ oldoffset, v9fs_qid2ino(&curdirent.qid),
+ curdirent.d_type);
+ oldoffset = curdirent.d_off;
+
+ if (over) {
+ err = 0;
+ goto unlock_and_exit;
+ }
+
+ filp->f_pos = curdirent.d_off;
+ rdir->head += err;
+ }
+ }
+
+unlock_and_exit:
+ mutex_unlock(&rdir->mutex);
+exit:
+ return err;
+}
+
/**
* v9fs_dir_release - close a directory
@@ -207,7 +309,7 @@ const struct file_operations v9fs_dir_operations = {
const struct file_operations v9fs_dir_operations_dotl = {
.read = generic_read_dir,
.llseek = generic_file_llseek,
- .readdir = v9fs_dir_readdir,
+ .readdir = v9fs_dir_readdir_dotl,
.open = v9fs_file_open,
.release = v9fs_dir_release,
};
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 2bedc6c..e97c92b 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -59,9 +59,13 @@ int v9fs_file_open(struct inode *inode, struct file *file)
struct p9_fid *fid;
int omode;
- P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p \n", inode, file);
+ P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, file);
v9ses = v9fs_inode2v9ses(inode);
- omode = v9fs_uflags2omode(file->f_flags, v9fs_proto_dotu(v9ses));
+ if (v9fs_proto_dotl(v9ses))
+ omode = file->f_flags;
+ else
+ omode = v9fs_uflags2omode(file->f_flags,
+ v9fs_proto_dotu(v9ses));
fid = file->private_data;
if (!fid) {
fid = v9fs_fid_clone(file->f_path.dentry);
@@ -73,11 +77,12 @@ int v9fs_file_open(struct inode *inode, struct file *file)
p9_client_clunk(fid);
return err;
}
- if (omode & P9_OTRUNC) {
+ if (file->f_flags & O_TRUNC) {
i_size_write(inode, 0);
inode->i_blocks = 0;
}
- if ((file->f_flags & O_APPEND) && (!v9fs_proto_dotu(v9ses)))
+ if ((file->f_flags & O_APPEND) &&
+ (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses)))
generic_file_llseek(file, 0, SEEK_END);
}
@@ -139,7 +144,7 @@ ssize_t
v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count,
u64 offset)
{
- int n, total;
+ int n, total, size;
struct p9_fid *fid = filp->private_data;
P9_DPRINTK(P9_DEBUG_VFS, "fid %d offset %llu count %d\n", fid->fid,
@@ -147,6 +152,7 @@ v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count,
n = 0;
total = 0;
+ size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ;
do {
n = p9_client_read(fid, data, udata, offset, count);
if (n <= 0)
@@ -160,7 +166,7 @@ v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count,
offset += n;
count -= n;
total += n;
- } while (count > 0 && n == (fid->clnt->msize - P9_IOHDRSZ));
+ } while (count > 0 && n == size);
if (n < 0)
total = n;
@@ -183,11 +189,13 @@ v9fs_file_read(struct file *filp, char __user *udata, size_t count,
{
int ret;
struct p9_fid *fid;
+ size_t size;
P9_DPRINTK(P9_DEBUG_VFS, "count %zu offset %lld\n", count, *offset);
fid = filp->private_data;
- if (count > (fid->clnt->msize - P9_IOHDRSZ))
+ size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ;
+ if (count > size)
ret = v9fs_file_readn(filp, NULL, udata, count, *offset);
else
ret = p9_client_read(fid, NULL, udata, *offset, count);
@@ -224,9 +232,7 @@ v9fs_file_write(struct file *filp, const char __user * data,
fid = filp->private_data;
clnt = fid->clnt;
- rsize = fid->iounit;
- if (!rsize || rsize > clnt->msize-P9_IOHDRSZ)
- rsize = clnt->msize - P9_IOHDRSZ;
+ rsize = fid->iounit ? fid->iounit : clnt->msize - P9_IOHDRSZ;
do {
if (count < rsize)
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 4331b3b..6e94f32 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -35,6 +35,7 @@
#include <linux/idr.h>
#include <linux/sched.h>
#include <linux/slab.h>
+#include <linux/xattr.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
@@ -42,6 +43,7 @@
#include "v9fs_vfs.h"
#include "fid.h"
#include "cache.h"
+#include "xattr.h"
static const struct inode_operations v9fs_dir_inode_operations;
static const struct inode_operations v9fs_dir_inode_operations_dotu;
@@ -236,6 +238,41 @@ void v9fs_destroy_inode(struct inode *inode)
#endif
/**
+ * v9fs_get_fsgid_for_create - Helper function to get the gid for creating a
+ * new file system object. This checks the S_ISGID to determine the owning
+ * group of the new file system object.
+ */
+
+static gid_t v9fs_get_fsgid_for_create(struct inode *dir_inode)
+{
+ BUG_ON(dir_inode == NULL);
+
+ if (dir_inode->i_mode & S_ISGID) {
+ /* set_gid bit is set.*/
+ return dir_inode->i_gid;
+ }
+ return current_fsgid();
+}
+
+/**
+ * v9fs_dentry_from_dir_inode - helper function to get the dentry from
+ * dir inode.
+ *
+ */
+
+static struct dentry *v9fs_dentry_from_dir_inode(struct inode *inode)
+{
+ struct dentry *dentry;
+
+ spin_lock(&dcache_lock);
+ /* Directory should have only one entry. */
+ BUG_ON(S_ISDIR(inode->i_mode) && !list_is_singular(&inode->i_dentry));
+ dentry = list_entry(inode->i_dentry.next, struct dentry, d_alias);
+ spin_unlock(&dcache_lock);
+ return dentry;
+}
+
+/**
* v9fs_get_inode - helper function to setup an inode
* @sb: superblock
* @mode: mode to setup inode with
@@ -267,7 +304,13 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
case S_IFBLK:
case S_IFCHR:
case S_IFSOCK:
- if (!v9fs_proto_dotu(v9ses)) {
+ if (v9fs_proto_dotl(v9ses)) {
+ inode->i_op = &v9fs_file_inode_operations_dotl;
+ inode->i_fop = &v9fs_file_operations_dotl;
+ } else if (v9fs_proto_dotu(v9ses)) {
+ inode->i_op = &v9fs_file_inode_operations;
+ inode->i_fop = &v9fs_file_operations;
+ } else {
P9_DPRINTK(P9_DEBUG_ERROR,
"special files without extended mode\n");
err = -EINVAL;
@@ -396,23 +439,14 @@ void v9fs_clear_inode(struct inode *inode)
#endif
}
-/**
- * v9fs_inode_from_fid - populate an inode by issuing a attribute request
- * @v9ses: session information
- * @fid: fid to issue attribute request for
- * @sb: superblock on which to create inode
- *
- */
-
static struct inode *
-v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
+v9fs_inode(struct v9fs_session_info *v9ses, struct p9_fid *fid,
struct super_block *sb)
{
int err, umode;
- struct inode *ret;
+ struct inode *ret = NULL;
struct p9_wstat *st;
- ret = NULL;
st = p9_client_stat(fid);
if (IS_ERR(st))
return ERR_CAST(st);
@@ -433,15 +467,62 @@ v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
#endif
p9stat_free(st);
kfree(st);
-
return ret;
-
error:
p9stat_free(st);
kfree(st);
return ERR_PTR(err);
}
+static struct inode *
+v9fs_inode_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid,
+ struct super_block *sb)
+{
+ struct inode *ret = NULL;
+ int err;
+ struct p9_stat_dotl *st;
+
+ st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
+ if (IS_ERR(st))
+ return ERR_CAST(st);
+
+ ret = v9fs_get_inode(sb, st->st_mode);
+ if (IS_ERR(ret)) {
+ err = PTR_ERR(ret);
+ goto error;
+ }
+
+ v9fs_stat2inode_dotl(st, ret);
+ ret->i_ino = v9fs_qid2ino(&st->qid);
+#ifdef CONFIG_9P_FSCACHE
+ v9fs_vcookie_set_qid(ret, &st->qid);
+ v9fs_cache_inode_get_cookie(ret);
+#endif
+ kfree(st);
+ return ret;
+error:
+ kfree(st);
+ return ERR_PTR(err);
+}
+
+/**
+ * v9fs_inode_from_fid - Helper routine to populate an inode by
+ * issuing a attribute request
+ * @v9ses: session information
+ * @fid: fid to issue attribute request for
+ * @sb: superblock on which to create inode
+ *
+ */
+static inline struct inode *
+v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
+ struct super_block *sb)
+{
+ if (v9fs_proto_dotl(v9ses))
+ return v9fs_inode_dotl(v9ses, fid, sb);
+ else
+ return v9fs_inode(v9ses, fid, sb);
+}
+
/**
* v9fs_remove - helper function to remove files and directories
* @dir: directory inode that is being deleted
@@ -563,6 +644,118 @@ error:
}
/**
+ * v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol.
+ * @dir: directory inode that is being created
+ * @dentry: dentry that is being deleted
+ * @mode: create permissions
+ * @nd: path information
+ *
+ */
+
+static int
+v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int mode,
+ struct nameidata *nd)
+{
+ int err = 0;
+ char *name = NULL;
+ gid_t gid;
+ int flags;
+ struct v9fs_session_info *v9ses;
+ struct p9_fid *fid = NULL;
+ struct p9_fid *dfid, *ofid;
+ struct file *filp;
+ struct p9_qid qid;
+ struct inode *inode;
+
+ v9ses = v9fs_inode2v9ses(dir);
+ if (nd && nd->flags & LOOKUP_OPEN)
+ flags = nd->intent.open.flags - 1;
+ else
+ flags = O_RDWR;
+
+ name = (char *) dentry->d_name.name;
+ P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_create_dotl: name:%s flags:0x%x "
+ "mode:0x%x\n", name, flags, mode);
+
+ dfid = v9fs_fid_lookup(dentry->d_parent);
+ if (IS_ERR(dfid)) {
+ err = PTR_ERR(dfid);
+ P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+ return err;
+ }
+
+ /* clone a fid to use for creation */
+ ofid = p9_client_walk(dfid, 0, NULL, 1);
+ if (IS_ERR(ofid)) {
+ err = PTR_ERR(ofid);
+ P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
+ return err;
+ }
+
+ gid = v9fs_get_fsgid_for_create(dir);
+ err = p9_client_create_dotl(ofid, name, flags, mode, gid, &qid);
+ if (err < 0) {
+ P9_DPRINTK(P9_DEBUG_VFS,
+ "p9_client_open_dotl failed in creat %d\n",
+ err);
+ goto error;
+ }
+
+ /* No need to populate the inode if we are not opening the file AND
+ * not in cached mode.
+ */
+ if (!v9ses->cache && !(nd && nd->flags & LOOKUP_OPEN)) {
+ /* Not in cached mode. No need to populate inode with stat */
+ dentry->d_op = &v9fs_dentry_operations;
+ p9_client_clunk(ofid);
+ d_instantiate(dentry, NULL);
+ return 0;
+ }
+
+ /* Now walk from the parent so we can get an unopened fid. */
+ fid = p9_client_walk(dfid, 1, &name, 1);
+ if (IS_ERR(fid)) {
+ err = PTR_ERR(fid);
+ P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
+ fid = NULL;
+ goto error;
+ }
+
+ /* instantiate inode and assign the unopened fid to dentry */
+ inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
+ goto error;
+ }
+ dentry->d_op = &v9fs_cached_dentry_operations;
+ d_instantiate(dentry, inode);
+ err = v9fs_fid_add(dentry, fid);
+ if (err < 0)
+ goto error;
+
+ /* if we are opening a file, assign the open fid to the file */
+ if (nd && nd->flags & LOOKUP_OPEN) {
+ filp = lookup_instantiate_filp(nd, dentry, v9fs_open_created);
+ if (IS_ERR(filp)) {
+ p9_client_clunk(ofid);
+ return PTR_ERR(filp);
+ }
+ filp->private_data = ofid;
+ } else
+ p9_client_clunk(ofid);
+
+ return 0;
+
+error:
+ if (ofid)
+ p9_client_clunk(ofid);
+ if (fid)
+ p9_client_clunk(fid);
+ return err;
+}
+
+/**
* v9fs_vfs_create - VFS hook to create files
* @dir: directory inode that is being created
* @dentry: dentry that is being deleted
@@ -652,6 +845,83 @@ static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
return err;
}
+
+/**
+ * v9fs_vfs_mkdir_dotl - VFS mkdir hook to create a directory
+ * @dir: inode that is being unlinked
+ * @dentry: dentry that is being unlinked
+ * @mode: mode for new directory
+ *
+ */
+
+static int v9fs_vfs_mkdir_dotl(struct inode *dir, struct dentry *dentry,
+ int mode)
+{
+ int err;
+ struct v9fs_session_info *v9ses;
+ struct p9_fid *fid = NULL, *dfid = NULL;
+ gid_t gid;
+ char *name;
+ struct inode *inode;
+ struct p9_qid qid;
+ struct dentry *dir_dentry;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
+ err = 0;
+ v9ses = v9fs_inode2v9ses(dir);
+
+ mode |= S_IFDIR;
+ dir_dentry = v9fs_dentry_from_dir_inode(dir);
+ dfid = v9fs_fid_lookup(dir_dentry);
+ if (IS_ERR(dfid)) {
+ err = PTR_ERR(dfid);
+ P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+ dfid = NULL;
+ goto error;
+ }
+
+ gid = v9fs_get_fsgid_for_create(dir);
+ if (gid < 0) {
+ P9_DPRINTK(P9_DEBUG_VFS, "v9fs_get_fsgid_for_create failed\n");
+ goto error;
+ }
+
+ name = (char *) dentry->d_name.name;
+ err = p9_client_mkdir_dotl(dfid, name, mode, gid, &qid);
+ if (err < 0)
+ goto error;
+
+ /* instantiate inode and assign the unopened fid to the dentry */
+ if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ fid = p9_client_walk(dfid, 1, &name, 1);
+ if (IS_ERR(fid)) {
+ err = PTR_ERR(fid);
+ P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
+ err);
+ fid = NULL;
+ goto error;
+ }
+
+ inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
+ err);
+ goto error;
+ }
+ dentry->d_op = &v9fs_cached_dentry_operations;
+ d_instantiate(dentry, inode);
+ err = v9fs_fid_add(dentry, fid);
+ if (err < 0)
+ goto error;
+ fid = NULL;
+ }
+error:
+ if (fid)
+ p9_client_clunk(fid);
+ return err;
+}
+
/**
* v9fs_vfs_lookup - VFS lookup hook to "walk" to a new inode
* @dir: inode that is being walked from
@@ -678,6 +948,7 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
sb = dir->i_sb;
v9ses = v9fs_inode2v9ses(dir);
+ /* We can walk d_parent because we hold the dir->i_mutex */
dfid = v9fs_fid_lookup(dentry->d_parent);
if (IS_ERR(dfid))
return ERR_CAST(dfid);
@@ -785,27 +1056,33 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
goto clunk_olddir;
}
+ down_write(&v9ses->rename_sem);
if (v9fs_proto_dotl(v9ses)) {
retval = p9_client_rename(oldfid, newdirfid,
(char *) new_dentry->d_name.name);
if (retval != -ENOSYS)
goto clunk_newdir;
}
+ if (old_dentry->d_parent != new_dentry->d_parent) {
+ /*
+ * 9P .u can only handle file rename in the same directory
+ */
- /* 9P can only handle file rename in the same directory */
- if (memcmp(&olddirfid->qid, &newdirfid->qid, sizeof(newdirfid->qid))) {
P9_DPRINTK(P9_DEBUG_ERROR,
"old dir and new dir are different\n");
retval = -EXDEV;
goto clunk_newdir;
}
-
v9fs_blank_wstat(&wstat);
wstat.muid = v9ses->uname;
wstat.name = (char *) new_dentry->d_name.name;
retval = p9_client_wstat(oldfid, &wstat);
clunk_newdir:
+ if (!retval)
+ /* successful rename */
+ d_move(old_dentry, new_dentry);
+ up_write(&v9ses->rename_sem);
p9_client_clunk(newdirfid);
clunk_olddir:
@@ -853,6 +1130,42 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
return 0;
}
+static int
+v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
+ struct kstat *stat)
+{
+ int err;
+ struct v9fs_session_info *v9ses;
+ struct p9_fid *fid;
+ struct p9_stat_dotl *st;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "dentry: %p\n", dentry);
+ err = -EPERM;
+ v9ses = v9fs_inode2v9ses(dentry->d_inode);
+ if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
+ return simple_getattr(mnt, dentry, stat);
+
+ fid = v9fs_fid_lookup(dentry);
+ if (IS_ERR(fid))
+ return PTR_ERR(fid);
+
+ /* Ask for all the fields in stat structure. Server will return
+ * whatever it supports
+ */
+
+ st = p9_client_getattr_dotl(fid, P9_STATS_ALL);
+ if (IS_ERR(st))
+ return PTR_ERR(st);
+
+ v9fs_stat2inode_dotl(st, dentry->d_inode);
+ generic_fillattr(dentry->d_inode, stat);
+ /* Change block size to what the server returned */
+ stat->blksize = st->st_blksize;
+
+ kfree(st);
+ return 0;
+}
+
/**
* v9fs_vfs_setattr - set file metadata
* @dentry: file whose metadata to set
@@ -903,6 +1216,49 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
}
/**
+ * v9fs_vfs_setattr_dotl - set file metadata
+ * @dentry: file whose metadata to set
+ * @iattr: metadata assignment structure
+ *
+ */
+
+static int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
+{
+ int retval;
+ struct v9fs_session_info *v9ses;
+ struct p9_fid *fid;
+ struct p9_iattr_dotl p9attr;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "\n");
+
+ retval = inode_change_ok(dentry->d_inode, iattr);
+ if (retval)
+ return retval;
+
+ p9attr.valid = iattr->ia_valid;
+ p9attr.mode = iattr->ia_mode;
+ p9attr.uid = iattr->ia_uid;
+ p9attr.gid = iattr->ia_gid;
+ p9attr.size = iattr->ia_size;
+ p9attr.atime_sec = iattr->ia_atime.tv_sec;
+ p9attr.atime_nsec = iattr->ia_atime.tv_nsec;
+ p9attr.mtime_sec = iattr->ia_mtime.tv_sec;
+ p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec;
+
+ retval = -EPERM;
+ v9ses = v9fs_inode2v9ses(dentry->d_inode);
+ fid = v9fs_fid_lookup(dentry);
+ if (IS_ERR(fid))
+ return PTR_ERR(fid);
+
+ retval = p9_client_setattr(fid, &p9attr);
+ if (retval >= 0)
+ retval = inode_setattr(dentry->d_inode, iattr);
+
+ return retval;
+}
+
+/**
* v9fs_stat2inode - populate an inode structure with mistat info
* @stat: Plan 9 metadata (mistat) structure
* @inode: inode to populate
@@ -980,6 +1336,77 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
}
/**
+ * v9fs_stat2inode_dotl - populate an inode structure with stat info
+ * @stat: stat structure
+ * @inode: inode to populate
+ * @sb: superblock of filesystem
+ *
+ */
+
+void
+v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
+{
+
+ if ((stat->st_result_mask & P9_STATS_BASIC) == P9_STATS_BASIC) {
+ inode->i_atime.tv_sec = stat->st_atime_sec;
+ inode->i_atime.tv_nsec = stat->st_atime_nsec;
+ inode->i_mtime.tv_sec = stat->st_mtime_sec;
+ inode->i_mtime.tv_nsec = stat->st_mtime_nsec;
+ inode->i_ctime.tv_sec = stat->st_ctime_sec;
+ inode->i_ctime.tv_nsec = stat->st_ctime_nsec;
+ inode->i_uid = stat->st_uid;
+ inode->i_gid = stat->st_gid;
+ inode->i_nlink = stat->st_nlink;
+ inode->i_mode = stat->st_mode;
+ inode->i_rdev = new_decode_dev(stat->st_rdev);
+
+ if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode)))
+ init_special_inode(inode, inode->i_mode, inode->i_rdev);
+
+ i_size_write(inode, stat->st_size);
+ inode->i_blocks = stat->st_blocks;
+ } else {
+ if (stat->st_result_mask & P9_STATS_ATIME) {
+ inode->i_atime.tv_sec = stat->st_atime_sec;
+ inode->i_atime.tv_nsec = stat->st_atime_nsec;
+ }
+ if (stat->st_result_mask & P9_STATS_MTIME) {
+ inode->i_mtime.tv_sec = stat->st_mtime_sec;
+ inode->i_mtime.tv_nsec = stat->st_mtime_nsec;
+ }
+ if (stat->st_result_mask & P9_STATS_CTIME) {
+ inode->i_ctime.tv_sec = stat->st_ctime_sec;
+ inode->i_ctime.tv_nsec = stat->st_ctime_nsec;
+ }
+ if (stat->st_result_mask & P9_STATS_UID)
+ inode->i_uid = stat->st_uid;
+ if (stat->st_result_mask & P9_STATS_GID)
+ inode->i_gid = stat->st_gid;
+ if (stat->st_result_mask & P9_STATS_NLINK)
+ inode->i_nlink = stat->st_nlink;
+ if (stat->st_result_mask & P9_STATS_MODE) {
+ inode->i_mode = stat->st_mode;
+ if ((S_ISBLK(inode->i_mode)) ||
+ (S_ISCHR(inode->i_mode)))
+ init_special_inode(inode, inode->i_mode,
+ inode->i_rdev);
+ }
+ if (stat->st_result_mask & P9_STATS_RDEV)
+ inode->i_rdev = new_decode_dev(stat->st_rdev);
+ if (stat->st_result_mask & P9_STATS_SIZE)
+ i_size_write(inode, stat->st_size);
+ if (stat->st_result_mask & P9_STATS_BLOCKS)
+ inode->i_blocks = stat->st_blocks;
+ }
+ if (stat->st_result_mask & P9_STATS_GEN)
+ inode->i_generation = stat->st_gen;
+
+ /* Currently we don't support P9_STATS_BTIME and P9_STATS_DATA_VERSION
+ * because the inode structure does not have fields for them.
+ */
+}
+
+/**
* v9fs_qid2ino - convert qid into inode number
* @qid: qid to hash
*
@@ -1022,7 +1449,7 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
if (IS_ERR(fid))
return PTR_ERR(fid);
- if (!v9fs_proto_dotu(v9ses))
+ if (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses))
return -EBADF;
st = p9_client_stat(fid);
@@ -1128,6 +1555,99 @@ static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
}
/**
+ * v9fs_vfs_symlink_dotl - helper function to create symlinks
+ * @dir: directory inode containing symlink
+ * @dentry: dentry for symlink
+ * @symname: symlink data
+ *
+ * See Also: 9P2000.L RFC for more information
+ *
+ */
+
+static int
+v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
+ const char *symname)
+{
+ struct v9fs_session_info *v9ses;
+ struct p9_fid *dfid;
+ struct p9_fid *fid = NULL;
+ struct inode *inode;
+ struct p9_qid qid;
+ char *name;
+ int err;
+ gid_t gid;
+
+ name = (char *) dentry->d_name.name;
+ P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_symlink_dotl : %lu,%s,%s\n",
+ dir->i_ino, name, symname);
+ v9ses = v9fs_inode2v9ses(dir);
+
+ dfid = v9fs_fid_lookup(dentry->d_parent);
+ if (IS_ERR(dfid)) {
+ err = PTR_ERR(dfid);
+ P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+ return err;
+ }
+
+ gid = v9fs_get_fsgid_for_create(dir);
+
+ if (gid < 0) {
+ P9_DPRINTK(P9_DEBUG_VFS, "v9fs_get_egid failed %d\n", gid);
+ goto error;
+ }
+
+ /* Server doesn't alter fid on TSYMLINK. Hence no need to clone it. */
+ err = p9_client_symlink(dfid, name, (char *)symname, gid, &qid);
+
+ if (err < 0) {
+ P9_DPRINTK(P9_DEBUG_VFS, "p9_client_symlink failed %d\n", err);
+ goto error;
+ }
+
+ if (v9ses->cache) {
+ /* Now walk from the parent so we can get an unopened fid. */
+ fid = p9_client_walk(dfid, 1, &name, 1);
+ if (IS_ERR(fid)) {
+ err = PTR_ERR(fid);
+ P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
+ err);
+ fid = NULL;
+ goto error;
+ }
+
+ /* instantiate inode and assign the unopened fid to dentry */
+ inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
+ err);
+ goto error;
+ }
+ dentry->d_op = &v9fs_cached_dentry_operations;
+ d_instantiate(dentry, inode);
+ err = v9fs_fid_add(dentry, fid);
+ if (err < 0)
+ goto error;
+ fid = NULL;
+ } else {
+ /* Not in cached mode. No need to populate inode with stat */
+ inode = v9fs_get_inode(dir->i_sb, S_IFLNK);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto error;
+ }
+ dentry->d_op = &v9fs_dentry_operations;
+ d_instantiate(dentry, inode);
+ }
+
+error:
+ if (fid)
+ p9_client_clunk(fid);
+
+ return err;
+}
+
+/**
* v9fs_vfs_symlink - helper function to create symlinks
* @dir: directory inode containing symlink
* @dentry: dentry for symlink
@@ -1186,6 +1706,76 @@ clunk_fid:
}
/**
+ * v9fs_vfs_link_dotl - create a hardlink for dotl
+ * @old_dentry: dentry for file to link to
+ * @dir: inode destination for new link
+ * @dentry: dentry for link
+ *
+ */
+
+static int
+v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
+ struct dentry *dentry)
+{
+ int err;
+ struct p9_fid *dfid, *oldfid;
+ char *name;
+ struct v9fs_session_info *v9ses;
+ struct dentry *dir_dentry;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "dir ino: %lu, old_name: %s, new_name: %s\n",
+ dir->i_ino, old_dentry->d_name.name,
+ dentry->d_name.name);
+
+ v9ses = v9fs_inode2v9ses(dir);
+ dir_dentry = v9fs_dentry_from_dir_inode(dir);
+ dfid = v9fs_fid_lookup(dir_dentry);
+ if (IS_ERR(dfid))
+ return PTR_ERR(dfid);
+
+ oldfid = v9fs_fid_lookup(old_dentry);
+ if (IS_ERR(oldfid))
+ return PTR_ERR(oldfid);
+
+ name = (char *) dentry->d_name.name;
+
+ err = p9_client_link(dfid, oldfid, (char *)dentry->d_name.name);
+
+ if (err < 0) {
+ P9_DPRINTK(P9_DEBUG_VFS, "p9_client_link failed %d\n", err);
+ return err;
+ }
+
+ if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ /* Get the latest stat info from server. */
+ struct p9_fid *fid;
+ struct p9_stat_dotl *st;
+
+ fid = v9fs_fid_lookup(old_dentry);
+ if (IS_ERR(fid))
+ return PTR_ERR(fid);
+
+ st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
+ if (IS_ERR(st))
+ return PTR_ERR(st);
+
+ v9fs_stat2inode_dotl(st, old_dentry->d_inode);
+
+ kfree(st);
+ } else {
+ /* Caching disabled. No need to get upto date stat info.
+ * This dentry will be released immediately. So, just i_count++
+ */
+ atomic_inc(&old_dentry->d_inode->i_count);
+ }
+
+ dentry->d_op = old_dentry->d_op;
+ d_instantiate(dentry, old_dentry->d_inode);
+
+ return err;
+}
+
+/**
* v9fs_vfs_mknod - create a special file
* @dir: inode destination for new link
* @dentry: dentry for file
@@ -1230,6 +1820,100 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
return retval;
}
+/**
+ * v9fs_vfs_mknod_dotl - create a special file
+ * @dir: inode destination for new link
+ * @dentry: dentry for file
+ * @mode: mode for creation
+ * @rdev: device associated with special file
+ *
+ */
+static int
+v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int mode,
+ dev_t rdev)
+{
+ int err;
+ char *name;
+ struct v9fs_session_info *v9ses;
+ struct p9_fid *fid = NULL, *dfid = NULL;
+ struct inode *inode;
+ gid_t gid;
+ struct p9_qid qid;
+ struct dentry *dir_dentry;
+
+ P9_DPRINTK(P9_DEBUG_VFS,
+ " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino,
+ dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
+
+ if (!new_valid_dev(rdev))
+ return -EINVAL;
+
+ v9ses = v9fs_inode2v9ses(dir);
+ dir_dentry = v9fs_dentry_from_dir_inode(dir);
+ dfid = v9fs_fid_lookup(dir_dentry);
+ if (IS_ERR(dfid)) {
+ err = PTR_ERR(dfid);
+ P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+ dfid = NULL;
+ goto error;
+ }
+
+ gid = v9fs_get_fsgid_for_create(dir);
+ if (gid < 0) {
+ P9_DPRINTK(P9_DEBUG_VFS, "v9fs_get_fsgid_for_create failed\n");
+ goto error;
+ }
+
+ name = (char *) dentry->d_name.name;
+
+ err = p9_client_mknod_dotl(dfid, name, mode, rdev, gid, &qid);
+ if (err < 0)
+ goto error;
+
+ /* instantiate inode and assign the unopened fid to the dentry */
+ if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ fid = p9_client_walk(dfid, 1, &name, 1);
+ if (IS_ERR(fid)) {
+ err = PTR_ERR(fid);
+ P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
+ err);
+ fid = NULL;
+ goto error;
+ }
+
+ inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
+ err);
+ goto error;
+ }
+ dentry->d_op = &v9fs_cached_dentry_operations;
+ d_instantiate(dentry, inode);
+ err = v9fs_fid_add(dentry, fid);
+ if (err < 0)
+ goto error;
+ fid = NULL;
+ } else {
+ /*
+ * Not in cached mode. No need to populate inode with stat.
+ * socket syscall returns a fd, so we need instantiate
+ */
+ inode = v9fs_get_inode(dir->i_sb, mode);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto error;
+ }
+ dentry->d_op = &v9fs_dentry_operations;
+ d_instantiate(dentry, inode);
+ }
+
+error:
+ if (fid)
+ p9_client_clunk(fid);
+ return err;
+}
+
static const struct inode_operations v9fs_dir_inode_operations_dotu = {
.create = v9fs_vfs_create,
.lookup = v9fs_vfs_lookup,
@@ -1238,24 +1922,29 @@ static const struct inode_operations v9fs_dir_inode_operations_dotu = {
.unlink = v9fs_vfs_unlink,
.mkdir = v9fs_vfs_mkdir,
.rmdir = v9fs_vfs_rmdir,
- .mknod = v9fs_vfs_mknod,
+ .mknod = v9fs_vfs_mknod_dotl,
.rename = v9fs_vfs_rename,
.getattr = v9fs_vfs_getattr,
.setattr = v9fs_vfs_setattr,
};
static const struct inode_operations v9fs_dir_inode_operations_dotl = {
- .create = v9fs_vfs_create,
+ .create = v9fs_vfs_create_dotl,
.lookup = v9fs_vfs_lookup,
- .symlink = v9fs_vfs_symlink,
- .link = v9fs_vfs_link,
+ .link = v9fs_vfs_link_dotl,
+ .symlink = v9fs_vfs_symlink_dotl,
.unlink = v9fs_vfs_unlink,
- .mkdir = v9fs_vfs_mkdir,
+ .mkdir = v9fs_vfs_mkdir_dotl,
.rmdir = v9fs_vfs_rmdir,
- .mknod = v9fs_vfs_mknod,
+ .mknod = v9fs_vfs_mknod_dotl,
.rename = v9fs_vfs_rename,
- .getattr = v9fs_vfs_getattr,
- .setattr = v9fs_vfs_setattr,
+ .getattr = v9fs_vfs_getattr_dotl,
+ .setattr = v9fs_vfs_setattr_dotl,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .removexattr = generic_removexattr,
+ .listxattr = v9fs_listxattr,
+
};
static const struct inode_operations v9fs_dir_inode_operations = {
@@ -1276,8 +1965,12 @@ static const struct inode_operations v9fs_file_inode_operations = {
};
static const struct inode_operations v9fs_file_inode_operations_dotl = {
- .getattr = v9fs_vfs_getattr,
- .setattr = v9fs_vfs_setattr,
+ .getattr = v9fs_vfs_getattr_dotl,
+ .setattr = v9fs_vfs_setattr_dotl,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .removexattr = generic_removexattr,
+ .listxattr = v9fs_listxattr,
};
static const struct inode_operations v9fs_symlink_inode_operations = {
@@ -1292,6 +1985,10 @@ static const struct inode_operations v9fs_symlink_inode_operations_dotl = {
.readlink = generic_readlink,
.follow_link = v9fs_vfs_follow_link,
.put_link = v9fs_vfs_put_link,
- .getattr = v9fs_vfs_getattr,
- .setattr = v9fs_vfs_setattr,
+ .getattr = v9fs_vfs_getattr_dotl,
+ .setattr = v9fs_vfs_setattr_dotl,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .removexattr = generic_removexattr,
+ .listxattr = v9fs_listxattr,
};
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index be74d02..4b9ede0 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -45,6 +45,7 @@
#include "v9fs.h"
#include "v9fs_vfs.h"
#include "fid.h"
+#include "xattr.h"
static const struct super_operations v9fs_super_ops, v9fs_super_ops_dotl;
@@ -77,9 +78,10 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses,
sb->s_blocksize_bits = fls(v9ses->maxdata - 1);
sb->s_blocksize = 1 << sb->s_blocksize_bits;
sb->s_magic = V9FS_MAGIC;
- if (v9fs_proto_dotl(v9ses))
+ if (v9fs_proto_dotl(v9ses)) {
sb->s_op = &v9fs_super_ops_dotl;
- else
+ sb->s_xattr = v9fs_xattr_handlers;
+ } else
sb->s_op = &v9fs_super_ops;
sb->s_bdi = &v9ses->bdi;
@@ -107,7 +109,6 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
struct inode *inode = NULL;
struct dentry *root = NULL;
struct v9fs_session_info *v9ses = NULL;
- struct p9_wstat *st = NULL;
int mode = S_IRWXUGO | S_ISVTX;
struct p9_fid *fid;
int retval = 0;
@@ -124,16 +125,10 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
goto close_session;
}
- st = p9_client_stat(fid);
- if (IS_ERR(st)) {
- retval = PTR_ERR(st);
- goto clunk_fid;
- }
-
sb = sget(fs_type, NULL, v9fs_set_super, v9ses);
if (IS_ERR(sb)) {
retval = PTR_ERR(sb);
- goto free_stat;
+ goto clunk_fid;
}
v9fs_fill_super(sb, v9ses, flags, data);
@@ -151,22 +146,38 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
}
sb->s_root = root;
- root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
- v9fs_stat2inode(st, root->d_inode, sb);
+ if (v9fs_proto_dotl(v9ses)) {
+ struct p9_stat_dotl *st = NULL;
+ st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
+ if (IS_ERR(st)) {
+ retval = PTR_ERR(st);
+ goto clunk_fid;
+ }
+
+ v9fs_stat2inode_dotl(st, root->d_inode);
+ kfree(st);
+ } else {
+ struct p9_wstat *st = NULL;
+ st = p9_client_stat(fid);
+ if (IS_ERR(st)) {
+ retval = PTR_ERR(st);
+ goto clunk_fid;
+ }
+
+ root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
+ v9fs_stat2inode(st, root->d_inode, sb);
+
+ p9stat_free(st);
+ kfree(st);
+ }
v9fs_fid_add(root, fid);
- p9stat_free(st);
- kfree(st);
P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n");
simple_set_mnt(mnt, sb);
return 0;
-free_stat:
- p9stat_free(st);
- kfree(st);
-
clunk_fid:
p9_client_clunk(fid);
@@ -176,8 +187,6 @@ close_session:
return retval;
release_sb:
- p9stat_free(st);
- kfree(st);
deactivate_locked_super(sb);
return retval;
}
@@ -278,4 +287,5 @@ struct file_system_type v9fs_fs_type = {
.get_sb = v9fs_get_sb,
.kill_sb = v9fs_kill_super,
.owner = THIS_MODULE,
+ .fs_flags = FS_RENAME_DOES_D_MOVE,
};
diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
new file mode 100644
index 0000000..f88e5c2
--- /dev/null
+++ b/fs/9p/xattr.c
@@ -0,0 +1,160 @@
+/*
+ * Copyright IBM Corporation, 2010
+ * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <net/9p/9p.h>
+#include <net/9p/client.h>
+
+#include "fid.h"
+#include "xattr.h"
+
+/*
+ * v9fs_xattr_get()
+ *
+ * Copy an extended attribute into the buffer
+ * provided, or compute the buffer size required.
+ * Buffer is NULL to compute the size of the buffer required.
+ *
+ * Returns a negative error number on failure, or the number of bytes
+ * used / required on success.
+ */
+ssize_t v9fs_xattr_get(struct dentry *dentry, const char *name,
+ void *buffer, size_t buffer_size)
+{
+ ssize_t retval;
+ int msize, read_count;
+ u64 offset = 0, attr_size;
+ struct p9_fid *fid, *attr_fid;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu\n",
+ __func__, name, buffer_size);
+
+ fid = v9fs_fid_lookup(dentry);
+ if (IS_ERR(fid))
+ return PTR_ERR(fid);
+
+ attr_fid = p9_client_xattrwalk(fid, name, &attr_size);
+ if (IS_ERR(attr_fid)) {
+ retval = PTR_ERR(attr_fid);
+ P9_DPRINTK(P9_DEBUG_VFS,
+ "p9_client_attrwalk failed %zd\n", retval);
+ attr_fid = NULL;
+ goto error;
+ }
+ if (!buffer_size) {
+ /* request to get the attr_size */
+ retval = attr_size;
+ goto error;
+ }
+ if (attr_size > buffer_size) {
+ retval = -ERANGE;
+ goto error;
+ }
+ msize = attr_fid->clnt->msize;
+ while (attr_size) {
+ if (attr_size > (msize - P9_IOHDRSZ))
+ read_count = msize - P9_IOHDRSZ;
+ else
+ read_count = attr_size;
+ read_count = p9_client_read(attr_fid, ((char *)buffer)+offset,
+ NULL, offset, read_count);
+ if (read_count < 0) {
+ /* error in xattr read */
+ retval = read_count;
+ goto error;
+ }
+ offset += read_count;
+ attr_size -= read_count;
+ }
+ /* Total read xattr bytes */
+ retval = offset;
+error:
+ if (attr_fid)
+ p9_client_clunk(attr_fid);
+ return retval;
+
+}
+
+/*
+ * v9fs_xattr_set()
+ *
+ * Create, replace or remove an extended attribute for this inode. Buffer
+ * is NULL to remove an existing extended attribute, and non-NULL to
+ * either replace an existing extended attribute, or create a new extended
+ * attribute. The flags XATTR_REPLACE and XATTR_CREATE
+ * specify that an extended attribute must exist and must not exist
+ * previous to the call, respectively.
+ *
+ * Returns 0, or a negative error number on failure.
+ */
+int v9fs_xattr_set(struct dentry *dentry, const char *name,
+ const void *value, size_t value_len, int flags)
+{
+ u64 offset = 0;
+ int retval, msize, write_count;
+ struct p9_fid *fid = NULL;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu flags = %d\n",
+ __func__, name, value_len, flags);
+
+ fid = v9fs_fid_clone(dentry);
+ if (IS_ERR(fid)) {
+ retval = PTR_ERR(fid);
+ fid = NULL;
+ goto error;
+ }
+ /*
+ * On success fid points to xattr
+ */
+ retval = p9_client_xattrcreate(fid, name, value_len, flags);
+ if (retval < 0) {
+ P9_DPRINTK(P9_DEBUG_VFS,
+ "p9_client_xattrcreate failed %d\n", retval);
+ goto error;
+ }
+ msize = fid->clnt->msize;;
+ while (value_len) {
+ if (value_len > (msize - P9_IOHDRSZ))
+ write_count = msize - P9_IOHDRSZ;
+ else
+ write_count = value_len;
+ write_count = p9_client_write(fid, ((char *)value)+offset,
+ NULL, offset, write_count);
+ if (write_count < 0) {
+ /* error in xattr write */
+ retval = write_count;
+ goto error;
+ }
+ offset += write_count;
+ value_len -= write_count;
+ }
+ /* Total read xattr bytes */
+ retval = offset;
+error:
+ if (fid)
+ retval = p9_client_clunk(fid);
+ return retval;
+}
+
+ssize_t v9fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
+{
+ return v9fs_xattr_get(dentry, NULL, buffer, buffer_size);
+}
+
+const struct xattr_handler *v9fs_xattr_handlers[] = {
+ &v9fs_xattr_user_handler,
+ NULL
+};
diff --git a/fs/9p/xattr.h b/fs/9p/xattr.h
new file mode 100644
index 0000000..9ddf672
--- /dev/null
+++ b/fs/9p/xattr.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright IBM Corporation, 2010
+ * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ */
+#ifndef FS_9P_XATTR_H
+#define FS_9P_XATTR_H
+
+#include <linux/xattr.h>
+
+extern const struct xattr_handler *v9fs_xattr_handlers[];
+extern struct xattr_handler v9fs_xattr_user_handler;
+
+extern ssize_t v9fs_xattr_get(struct dentry *, const char *,
+ void *, size_t);
+extern int v9fs_xattr_set(struct dentry *, const char *,
+ const void *, size_t, int);
+extern ssize_t v9fs_listxattr(struct dentry *, char *, size_t);
+#endif /* FS_9P_XATTR_H */
diff --git a/fs/9p/xattr_user.c b/fs/9p/xattr_user.c
new file mode 100644
index 0000000..d0b701b
--- /dev/null
+++ b/fs/9p/xattr_user.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright IBM Corporation, 2010
+ * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ */
+
+
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include "xattr.h"
+
+static int v9fs_xattr_user_get(struct dentry *dentry, const char *name,
+ void *buffer, size_t size, int type)
+{
+ int retval;
+ char *full_name;
+ size_t name_len;
+ size_t prefix_len = XATTR_USER_PREFIX_LEN;
+
+ if (name == NULL)
+ return -EINVAL;
+
+ if (strcmp(name, "") == 0)
+ return -EINVAL;
+
+ name_len = strlen(name);
+ full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
+ if (!full_name)
+ return -ENOMEM;
+ memcpy(full_name, XATTR_USER_PREFIX, prefix_len);
+ memcpy(full_name+prefix_len, name, name_len);
+ full_name[prefix_len + name_len] = '\0';
+
+ retval = v9fs_xattr_get(dentry, full_name, buffer, size);
+ kfree(full_name);
+ return retval;
+}
+
+static int v9fs_xattr_user_set(struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags, int type)
+{
+ int retval;
+ char *full_name;
+ size_t name_len;
+ size_t prefix_len = XATTR_USER_PREFIX_LEN;
+
+ if (name == NULL)
+ return -EINVAL;
+
+ if (strcmp(name, "") == 0)
+ return -EINVAL;
+
+ name_len = strlen(name);
+ full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
+ if (!full_name)
+ return -ENOMEM;
+ memcpy(full_name, XATTR_USER_PREFIX, prefix_len);
+ memcpy(full_name + prefix_len, name, name_len);
+ full_name[prefix_len + name_len] = '\0';
+
+ retval = v9fs_xattr_set(dentry, full_name, value, size, flags);
+ kfree(full_name);
+ return retval;
+}
+
+struct xattr_handler v9fs_xattr_user_handler = {
+ .prefix = XATTR_USER_PREFIX,
+ .get = v9fs_xattr_user_get,
+ .set = v9fs_xattr_user_set,
+};
diff --git a/fs/Kconfig b/fs/Kconfig
index 5f85b59..3d18530 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -64,7 +64,7 @@ source "fs/autofs4/Kconfig"
source "fs/fuse/Kconfig"
config CUSE
- tristate "Character device in Userpace support"
+ tristate "Character device in Userspace support"
depends on FUSE_FS
help
This FUSE extension allows character devices to be
diff --git a/fs/afs/Kconfig b/fs/afs/Kconfig
index 5c4e61d..8f975f2 100644
--- a/fs/afs/Kconfig
+++ b/fs/afs/Kconfig
@@ -2,6 +2,7 @@ config AFS_FS
tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
depends on INET && EXPERIMENTAL
select AF_RXRPC
+ select DNS_RESOLVER
help
If you say Y here, you will get an experimental Andrew File System
driver. It currently only supports unsecured read-only AFS access.
diff --git a/fs/afs/cell.c b/fs/afs/cell.c
index e19c13f..ffea35c 100644
--- a/fs/afs/cell.c
+++ b/fs/afs/cell.c
@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/key.h>
#include <linux/ctype.h>
+#include <linux/dns_resolver.h>
#include <linux/sched.h>
#include <keys/rxrpc-type.h>
#include "internal.h"
@@ -36,6 +37,8 @@ static struct afs_cell *afs_cell_alloc(const char *name, char *vllist)
struct key *key;
size_t namelen;
char keyname[4 + AFS_MAXCELLNAME + 1], *cp, *dp, *next;
+ char *dvllist = NULL, *_vllist = NULL;
+ char delimiter = ':';
int ret;
_enter("%s,%s", name, vllist);
@@ -43,8 +46,10 @@ static struct afs_cell *afs_cell_alloc(const char *name, char *vllist)
BUG_ON(!name); /* TODO: want to look up "this cell" in the cache */
namelen = strlen(name);
- if (namelen > AFS_MAXCELLNAME)
+ if (namelen > AFS_MAXCELLNAME) {
+ _leave(" = -ENAMETOOLONG");
return ERR_PTR(-ENAMETOOLONG);
+ }
/* allocate and initialise a cell record */
cell = kzalloc(sizeof(struct afs_cell) + namelen + 1, GFP_KERNEL);
@@ -64,15 +69,31 @@ static struct afs_cell *afs_cell_alloc(const char *name, char *vllist)
INIT_LIST_HEAD(&cell->vl_list);
spin_lock_init(&cell->vl_lock);
+ /* if the ip address is invalid, try dns query */
+ if (!vllist || strlen(vllist) < 7) {
+ ret = dns_query("afsdb", name, namelen, "ipv4", &dvllist, NULL);
+ if (ret < 0) {
+ _leave(" = %d", ret);
+ return ERR_PTR(ret);
+ }
+ _vllist = dvllist;
+
+ /* change the delimiter for user-space reply */
+ delimiter = ',';
+
+ } else {
+ _vllist = vllist;
+ }
+
/* fill in the VL server list from the rest of the string */
do {
unsigned a, b, c, d;
- next = strchr(vllist, ':');
+ next = strchr(_vllist, delimiter);
if (next)
*next++ = 0;
- if (sscanf(vllist, "%u.%u.%u.%u", &a, &b, &c, &d) != 4)
+ if (sscanf(_vllist, "%u.%u.%u.%u", &a, &b, &c, &d) != 4)
goto bad_address;
if (a > 255 || b > 255 || c > 255 || d > 255)
@@ -81,7 +102,7 @@ static struct afs_cell *afs_cell_alloc(const char *name, char *vllist)
cell->vl_addrs[cell->vl_naddrs++].s_addr =
htonl((a << 24) | (b << 16) | (c << 8) | d);
- } while (cell->vl_naddrs < AFS_CELL_MAX_ADDRS && (vllist = next));
+ } while (cell->vl_naddrs < AFS_CELL_MAX_ADDRS && (_vllist = next));
/* create a key to represent an anonymous user */
memcpy(keyname, "afs@", 4);
@@ -110,6 +131,7 @@ bad_address:
ret = -EINVAL;
error:
key_put(cell->anonymous_key);
+ kfree(dvllist);
kfree(cell);
_leave(" = %d", ret);
return ERR_PTR(ret);
@@ -201,14 +223,12 @@ int afs_cell_init(char *rootcell)
}
cp = strchr(rootcell, ':');
- if (!cp) {
- printk(KERN_ERR "kAFS: no VL server IP addresses specified\n");
- _leave(" = -EINVAL");
- return -EINVAL;
- }
+ if (!cp)
+ _debug("kAFS: no VL server IP addresses specified");
+ else
+ *cp++ = 0;
/* allocate a cell record for the root cell */
- *cp++ = 0;
new_root = afs_cell_create(rootcell, cp);
if (IS_ERR(new_root)) {
_leave(" = %ld", PTR_ERR(new_root));
diff --git a/fs/afs/main.c b/fs/afs/main.c
index 66d54d3..cfd1cbe 100644
--- a/fs/afs/main.c
+++ b/fs/afs/main.c
@@ -111,6 +111,8 @@ static int __init afs_init(void)
/* initialise the callback update process */
ret = afs_callback_update_init();
+ if (ret < 0)
+ goto error_callback_update_init;
/* create the RxRPC transport */
ret = afs_open_socket();
@@ -127,15 +129,16 @@ static int __init afs_init(void)
error_fs:
afs_close_socket();
error_open_socket:
+ afs_callback_update_kill();
+error_callback_update_init:
+ afs_vlocation_purge();
error_vl_update_init:
+ afs_cell_purge();
error_cell_init:
#ifdef CONFIG_AFS_FSCACHE
fscache_unregister_netfs(&afs_cache_netfs);
error_cache:
#endif
- afs_callback_update_kill();
- afs_vlocation_purge();
- afs_cell_purge();
afs_proc_cleanup();
rcu_barrier();
printk(KERN_ERR "kAFS: failed to register: %d\n", ret);
diff --git a/fs/afs/write.c b/fs/afs/write.c
index 3dab9e9..722743b 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -680,7 +680,6 @@ int afs_writeback_all(struct afs_vnode *vnode)
{
struct address_space *mapping = vnode->vfs_inode.i_mapping;
struct writeback_control wbc = {
- .bdi = mapping->backing_dev_info,
.sync_mode = WB_SYNC_ALL,
.nr_to_write = LONG_MAX,
.range_cyclic = 1,
diff --git a/fs/aio.c b/fs/aio.c
index 1ccf25c..3006b5b 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1277,7 +1277,7 @@ out:
/* sys_io_destroy:
* Destroy the aio_context specified. May cancel any outstanding
* AIOs and block on completion. Will fail with -ENOSYS if not
- * implemented. May fail with -EFAULT if the context pointed to
+ * implemented. May fail with -EINVAL if the context pointed to
* is invalid.
*/
SYSCALL_DEFINE1(io_destroy, aio_context_t, ctx)
@@ -1795,15 +1795,16 @@ SYSCALL_DEFINE3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb,
/* io_getevents:
* Attempts to read at least min_nr events and up to nr events from
- * the completion queue for the aio_context specified by ctx_id. May
- * fail with -EINVAL if ctx_id is invalid, if min_nr is out of range,
- * if nr is out of range, if when is out of range. May fail with
- * -EFAULT if any of the memory specified to is invalid. May return
- * 0 or < min_nr if no events are available and the timeout specified
- * by when has elapsed, where when == NULL specifies an infinite
- * timeout. Note that the timeout pointed to by when is relative and
- * will be updated if not NULL and the operation blocks. Will fail
- * with -ENOSYS if not implemented.
+ * the completion queue for the aio_context specified by ctx_id. If
+ * it succeeds, the number of read events is returned. May fail with
+ * -EINVAL if ctx_id is invalid, if min_nr is out of range, if nr is
+ * out of range, if timeout is out of range. May fail with -EFAULT
+ * if any of the memory specified is invalid. May return 0 or
+ * < min_nr if the timeout specified by timeout has elapsed
+ * before sufficient events are available, where timeout == NULL
+ * specifies an infinite timeout. Note that the timeout pointed to by
+ * timeout is relative and will be updated if not NULL and the
+ * operation blocks. Will fail with -ENOSYS if not implemented.
*/
SYSCALL_DEFINE5(io_getevents, aio_context_t, ctx_id,
long, min_nr,
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 34ddda8..dc39d28 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -436,7 +436,7 @@ befs_init_inodecache(void)
init_once);
if (befs_inode_cachep == NULL) {
printk(KERN_ERR "befs_init_inodecache: "
- "Couldn't initalize inode slabcache\n");
+ "Couldn't initialize inode slabcache\n");
return -ENOMEM;
}
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 99d6af8..b3171fb 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -681,8 +681,8 @@ retry:
if (!bd_may_claim(bdev, whole, holder))
return -EBUSY;
- /* if someone else is claiming, wait for it to finish */
- if (whole->bd_claiming && whole->bd_claiming != holder) {
+ /* if claiming is already in progress, wait for it to finish */
+ if (whole->bd_claiming) {
wait_queue_head_t *wq = bit_waitqueue(&whole->bd_claiming, 0);
DEFINE_WAIT(wait);
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 0d1d966..c3df14c 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2304,12 +2304,17 @@ noinline int btrfs_leaf_free_space(struct btrfs_root *root,
return ret;
}
+/*
+ * min slot controls the lowest index we're willing to push to the
+ * right. We'll push up to and including min_slot, but no lower
+ */
static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path,
int data_size, int empty,
struct extent_buffer *right,
- int free_space, u32 left_nritems)
+ int free_space, u32 left_nritems,
+ u32 min_slot)
{
struct extent_buffer *left = path->nodes[0];
struct extent_buffer *upper = path->nodes[1];
@@ -2327,7 +2332,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
if (empty)
nr = 0;
else
- nr = 1;
+ nr = max_t(u32, 1, min_slot);
if (path->slots[0] >= left_nritems)
push_space += data_size;
@@ -2469,10 +2474,14 @@ out_unlock:
*
* returns 1 if the push failed because the other node didn't have enough
* room, 0 if everything worked out and < 0 if there were major errors.
+ *
+ * this will push starting from min_slot to the end of the leaf. It won't
+ * push any slot lower than min_slot
*/
static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
- *root, struct btrfs_path *path, int data_size,
- int empty)
+ *root, struct btrfs_path *path,
+ int min_data_size, int data_size,
+ int empty, u32 min_slot)
{
struct extent_buffer *left = path->nodes[0];
struct extent_buffer *right;
@@ -2514,8 +2523,8 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
if (left_nritems == 0)
goto out_unlock;
- return __push_leaf_right(trans, root, path, data_size, empty,
- right, free_space, left_nritems);
+ return __push_leaf_right(trans, root, path, min_data_size, empty,
+ right, free_space, left_nritems, min_slot);
out_unlock:
btrfs_tree_unlock(right);
free_extent_buffer(right);
@@ -2525,12 +2534,17 @@ out_unlock:
/*
* push some data in the path leaf to the left, trying to free up at
* least data_size bytes. returns zero if the push worked, nonzero otherwise
+ *
+ * max_slot can put a limit on how far into the leaf we'll push items. The
+ * item at 'max_slot' won't be touched. Use (u32)-1 to make us do all the
+ * items
*/
static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, int data_size,
int empty, struct extent_buffer *left,
- int free_space, int right_nritems)
+ int free_space, u32 right_nritems,
+ u32 max_slot)
{
struct btrfs_disk_key disk_key;
struct extent_buffer *right = path->nodes[0];
@@ -2549,9 +2563,9 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
slot = path->slots[1];
if (empty)
- nr = right_nritems;
+ nr = min(right_nritems, max_slot);
else
- nr = right_nritems - 1;
+ nr = min(right_nritems - 1, max_slot);
for (i = 0; i < nr; i++) {
item = btrfs_item_nr(right, i);
@@ -2712,10 +2726,14 @@ out:
/*
* push some data in the path leaf to the left, trying to free up at
* least data_size bytes. returns zero if the push worked, nonzero otherwise
+ *
+ * max_slot can put a limit on how far into the leaf we'll push items. The
+ * item at 'max_slot' won't be touched. Use (u32)-1 to make us push all the
+ * items
*/
static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
- *root, struct btrfs_path *path, int data_size,
- int empty)
+ *root, struct btrfs_path *path, int min_data_size,
+ int data_size, int empty, u32 max_slot)
{
struct extent_buffer *right = path->nodes[0];
struct extent_buffer *left;
@@ -2761,8 +2779,9 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
goto out;
}
- return __push_leaf_left(trans, root, path, data_size,
- empty, left, free_space, right_nritems);
+ return __push_leaf_left(trans, root, path, min_data_size,
+ empty, left, free_space, right_nritems,
+ max_slot);
out:
btrfs_tree_unlock(left);
free_extent_buffer(left);
@@ -2855,6 +2874,64 @@ static noinline int copy_for_split(struct btrfs_trans_handle *trans,
}
/*
+ * double splits happen when we need to insert a big item in the middle
+ * of a leaf. A double split can leave us with 3 mostly empty leaves:
+ * leaf: [ slots 0 - N] [ our target ] [ N + 1 - total in leaf ]
+ * A B C
+ *
+ * We avoid this by trying to push the items on either side of our target
+ * into the adjacent leaves. If all goes well we can avoid the double split
+ * completely.
+ */
+static noinline int push_for_double_split(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct btrfs_path *path,
+ int data_size)
+{
+ int ret;
+ int progress = 0;
+ int slot;
+ u32 nritems;
+
+ slot = path->slots[0];
+
+ /*
+ * try to push all the items after our slot into the
+ * right leaf
+ */
+ ret = push_leaf_right(trans, root, path, 1, data_size, 0, slot);
+ if (ret < 0)
+ return ret;
+
+ if (ret == 0)
+ progress++;
+
+ nritems = btrfs_header_nritems(path->nodes[0]);
+ /*
+ * our goal is to get our slot at the start or end of a leaf. If
+ * we've done so we're done
+ */
+ if (path->slots[0] == 0 || path->slots[0] == nritems)
+ return 0;
+
+ if (btrfs_leaf_free_space(root, path->nodes[0]) >= data_size)
+ return 0;
+
+ /* try to push all the items before our slot into the next leaf */
+ slot = path->slots[0];
+ ret = push_leaf_left(trans, root, path, 1, data_size, 0, slot);
+ if (ret < 0)
+ return ret;
+
+ if (ret == 0)
+ progress++;
+
+ if (progress)
+ return 0;
+ return 1;
+}
+
+/*
* split the path's leaf in two, making sure there is at least data_size
* available for the resulting leaf level of the path.
*
@@ -2876,6 +2953,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
int wret;
int split;
int num_doubles = 0;
+ int tried_avoid_double = 0;
l = path->nodes[0];
slot = path->slots[0];
@@ -2884,12 +2962,14 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
return -EOVERFLOW;
/* first try to make some room by pushing left and right */
- if (data_size && ins_key->type != BTRFS_DIR_ITEM_KEY) {
- wret = push_leaf_right(trans, root, path, data_size, 0);
+ if (data_size) {
+ wret = push_leaf_right(trans, root, path, data_size,
+ data_size, 0, 0);
if (wret < 0)
return wret;
if (wret) {
- wret = push_leaf_left(trans, root, path, data_size, 0);
+ wret = push_leaf_left(trans, root, path, data_size,
+ data_size, 0, (u32)-1);
if (wret < 0)
return wret;
}
@@ -2923,6 +3003,8 @@ again:
if (mid != nritems &&
leaf_space_used(l, mid, nritems - mid) +
data_size > BTRFS_LEAF_DATA_SIZE(root)) {
+ if (data_size && !tried_avoid_double)
+ goto push_for_double;
split = 2;
}
}
@@ -2939,6 +3021,8 @@ again:
if (mid != nritems &&
leaf_space_used(l, mid, nritems - mid) +
data_size > BTRFS_LEAF_DATA_SIZE(root)) {
+ if (data_size && !tried_avoid_double)
+ goto push_for_double;
split = 2 ;
}
}
@@ -3019,6 +3103,13 @@ again:
}
return ret;
+
+push_for_double:
+ push_for_double_split(trans, root, path, data_size);
+ tried_avoid_double = 1;
+ if (btrfs_leaf_free_space(root, path->nodes[0]) >= data_size)
+ return 0;
+ goto again;
}
static noinline int setup_leaf_for_split(struct btrfs_trans_handle *trans,
@@ -3915,13 +4006,15 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
extent_buffer_get(leaf);
btrfs_set_path_blocking(path);
- wret = push_leaf_left(trans, root, path, 1, 1);
+ wret = push_leaf_left(trans, root, path, 1, 1,
+ 1, (u32)-1);
if (wret < 0 && wret != -ENOSPC)
ret = wret;
if (path->nodes[0] == leaf &&
btrfs_header_nritems(leaf)) {
- wret = push_leaf_right(trans, root, path, 1, 1);
+ wret = push_leaf_right(trans, root, path, 1,
+ 1, 1, 0);
if (wret < 0 && wret != -ENOSPC)
ret = wret;
}
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index a4080c2..d74e6af 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2594,7 +2594,6 @@ int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
.sync_io = wbc->sync_mode == WB_SYNC_ALL,
};
struct writeback_control wbc_writepages = {
- .bdi = wbc->bdi,
.sync_mode = wbc->sync_mode,
.older_than_this = NULL,
.nr_to_write = 64,
@@ -2628,7 +2627,6 @@ int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
.sync_io = mode == WB_SYNC_ALL,
};
struct writeback_control wbc_writepages = {
- .bdi = inode->i_mapping->backing_dev_info,
.sync_mode = mode,
.older_than_this = NULL,
.nr_to_write = nr_pages * 2,
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 4dbaf89..9254b3d 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1458,7 +1458,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
*/
/* the destination must be opened for writing */
- if (!(file->f_mode & FMODE_WRITE))
+ if (!(file->f_mode & FMODE_WRITE) || (file->f_flags & O_APPEND))
return -EINVAL;
ret = mnt_want_write(file->f_path.mnt);
@@ -1511,7 +1511,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
/* determine range to clone */
ret = -EINVAL;
- if (off >= src->i_size || off + len > src->i_size)
+ if (off + len > src->i_size || off + len < off)
goto out_unlock;
if (len == 0)
olen = len = src->i_size - off;
@@ -1578,6 +1578,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
u64 disko = 0, diskl = 0;
u64 datao = 0, datal = 0;
u8 comp;
+ u64 endoff;
size = btrfs_item_size_nr(leaf, slot);
read_extent_buffer(leaf, buf,
@@ -1712,9 +1713,18 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
btrfs_release_path(root, path);
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
- if (new_key.offset + datal > inode->i_size)
- btrfs_i_size_write(inode,
- new_key.offset + datal);
+
+ /*
+ * we round up to the block size at eof when
+ * determining which extents to clone above,
+ * but shouldn't round up the file size
+ */
+ endoff = new_key.offset + datal;
+ if (endoff > off+olen)
+ endoff = off+olen;
+ if (endoff > inode->i_size)
+ btrfs_i_size_write(inode, endoff);
+
BTRFS_I(inode)->flags = BTRFS_I(src)->flags;
ret = btrfs_update_inode(trans, root, inode);
BUG_ON(ret);
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index f4a7840..42c7faf 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -37,9 +37,9 @@ void __cachefiles_printk_object(struct cachefiles_object *object,
printk(KERN_ERR "%sobject: OBJ%x\n",
prefix, object->fscache.debug_id);
- printk(KERN_ERR "%sobjstate=%s fl=%lx swfl=%lx ev=%lx[%lx]\n",
+ printk(KERN_ERR "%sobjstate=%s fl=%lx wbusy=%x ev=%lx[%lx]\n",
prefix, fscache_object_states[object->fscache.state],
- object->fscache.flags, object->fscache.work.flags,
+ object->fscache.flags, work_busy(&object->fscache.work),
object->fscache.events,
object->fscache.event_mask & FSCACHE_OBJECT_EVENTS_MASK);
printk(KERN_ERR "%sops=%u inp=%u exc=%u\n",
@@ -212,7 +212,7 @@ wait_for_old_object:
/* if the object we're waiting for is queued for processing,
* then just put ourselves on the queue behind it */
- if (slow_work_is_queued(&xobject->fscache.work)) {
+ if (work_pending(&xobject->fscache.work)) {
_debug("queue OBJ%x behind OBJ%x immediately",
object->fscache.debug_id,
xobject->fscache.debug_id);
@@ -220,8 +220,7 @@ wait_for_old_object:
}
/* otherwise we sleep until either the object we're waiting for
- * is done, or the slow-work facility wants the thread back to
- * do other work */
+ * is done, or the fscache_object is congested */
wq = bit_waitqueue(&xobject->flags, CACHEFILES_OBJECT_ACTIVE);
init_wait(&wait);
requeue = false;
@@ -229,8 +228,8 @@ wait_for_old_object:
prepare_to_wait(wq, &wait, TASK_UNINTERRUPTIBLE);
if (!test_bit(CACHEFILES_OBJECT_ACTIVE, &xobject->flags))
break;
- requeue = slow_work_sleep_till_thread_needed(
- &object->fscache.work, &timeout);
+
+ requeue = fscache_object_sleep_till_congested(&timeout);
} while (timeout > 0 && !requeue);
finish_wait(wq, &wait);
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 0f0d41f..0e3c092 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -422,7 +422,7 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op,
shift = PAGE_SHIFT - inode->i_sb->s_blocksize_bits;
op->op.flags &= FSCACHE_OP_KEEP_FLAGS;
- op->op.flags |= FSCACHE_OP_FAST;
+ op->op.flags |= FSCACHE_OP_ASYNC;
op->op.processor = cachefiles_read_copier;
pagevec_init(&pagevec, 0);
@@ -729,7 +729,7 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op,
pagevec_init(&pagevec, 0);
op->op.flags &= FSCACHE_OP_KEEP_FLAGS;
- op->op.flags |= FSCACHE_OP_FAST;
+ op->op.flags |= FSCACHE_OP_ASYNC;
op->op.processor = cachefiles_read_copier;
INIT_LIST_HEAD(&backpages);
diff --git a/fs/ceph/Kconfig b/fs/ceph/Kconfig
index 04b8280..bc87b9c 100644
--- a/fs/ceph/Kconfig
+++ b/fs/ceph/Kconfig
@@ -2,7 +2,7 @@ config CEPH_FS
tristate "Ceph distributed file system (EXPERIMENTAL)"
depends on INET && EXPERIMENTAL
select LIBCRC32C
- select CONFIG_CRYPTO_AES
+ select CRYPTO_AES
help
Choose Y or M here to include support for mounting the
experimental Ceph distributed file system. Ceph is an extremely
diff --git a/fs/ceph/auth_x.c b/fs/ceph/auth_x.c
index 83d4d27..6d44053 100644
--- a/fs/ceph/auth_x.c
+++ b/fs/ceph/auth_x.c
@@ -493,7 +493,7 @@ static int ceph_x_handle_reply(struct ceph_auth_client *ac, int result,
return -EAGAIN;
}
- op = le32_to_cpu(head->op);
+ op = le16_to_cpu(head->op);
result = le32_to_cpu(head->result);
dout("handle_reply op %d result %d\n", op, result);
switch (op) {
@@ -613,6 +613,9 @@ static void ceph_x_destroy(struct ceph_auth_client *ac)
remove_ticket_handler(ac, th);
}
+ if (xi->auth_authorizer.buf)
+ ceph_buffer_put(xi->auth_authorizer.buf);
+
kfree(ac->private);
ac->private = NULL;
}
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 619b616..b81be9a 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -244,8 +244,14 @@ static struct ceph_cap *get_cap(struct ceph_cap_reservation *ctx)
struct ceph_cap *cap = NULL;
/* temporary, until we do something about cap import/export */
- if (!ctx)
- return kmem_cache_alloc(ceph_cap_cachep, GFP_NOFS);
+ if (!ctx) {
+ cap = kmem_cache_alloc(ceph_cap_cachep, GFP_NOFS);
+ if (cap) {
+ caps_use_count++;
+ caps_total_count++;
+ }
+ return cap;
+ }
spin_lock(&caps_list_lock);
dout("get_cap ctx=%p (%d) %d = %d used + %d resv + %d avail\n",
@@ -621,7 +627,7 @@ retry:
if (fmode >= 0)
__ceph_get_fmode(ci, fmode);
spin_unlock(&inode->i_lock);
- wake_up(&ci->i_cap_wq);
+ wake_up_all(&ci->i_cap_wq);
return 0;
}
@@ -1175,7 +1181,7 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
}
if (wake)
- wake_up(&ci->i_cap_wq);
+ wake_up_all(&ci->i_cap_wq);
return delayed;
}
@@ -2147,7 +2153,7 @@ void ceph_put_cap_refs(struct ceph_inode_info *ci, int had)
else if (flushsnaps)
ceph_flush_snaps(ci);
if (wake)
- wake_up(&ci->i_cap_wq);
+ wake_up_all(&ci->i_cap_wq);
if (put)
iput(inode);
}
@@ -2223,7 +2229,7 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
iput(inode);
} else if (complete_capsnap) {
ceph_flush_snaps(ci);
- wake_up(&ci->i_cap_wq);
+ wake_up_all(&ci->i_cap_wq);
}
if (drop_capsnap)
iput(inode);
@@ -2399,7 +2405,7 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
if (queue_invalidate)
ceph_queue_invalidate(inode);
if (wake)
- wake_up(&ci->i_cap_wq);
+ wake_up_all(&ci->i_cap_wq);
if (check_caps == 1)
ceph_check_caps(ci, CHECK_CAPS_NODELAY|CHECK_CAPS_AUTHONLY,
@@ -2454,7 +2460,7 @@ static void handle_cap_flush_ack(struct inode *inode, u64 flush_tid,
struct ceph_inode_info,
i_flushing_item)->vfs_inode);
mdsc->num_cap_flushing--;
- wake_up(&mdsc->cap_flushing_wq);
+ wake_up_all(&mdsc->cap_flushing_wq);
dout(" inode %p now !flushing\n", inode);
if (ci->i_dirty_caps == 0) {
@@ -2466,7 +2472,7 @@ static void handle_cap_flush_ack(struct inode *inode, u64 flush_tid,
}
}
spin_unlock(&mdsc->cap_dirty_lock);
- wake_up(&ci->i_cap_wq);
+ wake_up_all(&ci->i_cap_wq);
out:
spin_unlock(&inode->i_lock);
@@ -2886,18 +2892,19 @@ int ceph_encode_inode_release(void **p, struct inode *inode,
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_cap *cap;
struct ceph_mds_request_release *rel = *p;
+ int used, dirty;
int ret = 0;
- int used = 0;
spin_lock(&inode->i_lock);
used = __ceph_caps_used(ci);
+ dirty = __ceph_caps_dirty(ci);
- dout("encode_inode_release %p mds%d used %s drop %s unless %s\n", inode,
- mds, ceph_cap_string(used), ceph_cap_string(drop),
+ dout("encode_inode_release %p mds%d used|dirty %s drop %s unless %s\n",
+ inode, mds, ceph_cap_string(used|dirty), ceph_cap_string(drop),
ceph_cap_string(unless));
- /* only drop unused caps */
- drop &= ~used;
+ /* only drop unused, clean caps */
+ drop &= ~(used | dirty);
cap = __get_cap_for_mds(ci, mds);
if (cap && __cap_is_valid(cap)) {
@@ -2977,6 +2984,7 @@ int ceph_encode_dentry_release(void **p, struct dentry *dentry,
memcpy(*p, dentry->d_name.name, dentry->d_name.len);
*p += dentry->d_name.len;
rel->dname_seq = cpu_to_le32(di->lease_seq);
+ __ceph_mdsc_drop_dentry_lease(dentry);
}
spin_unlock(&dentry->d_lock);
return ret;
diff --git a/fs/ceph/crush/mapper.c b/fs/ceph/crush/mapper.c
index 9ba54ef..a4eec13 100644
--- a/fs/ceph/crush/mapper.c
+++ b/fs/ceph/crush/mapper.c
@@ -238,7 +238,7 @@ static int bucket_straw_choose(struct crush_bucket_straw *bucket,
static int crush_bucket_choose(struct crush_bucket *in, int x, int r)
{
- dprintk("choose %d x=%d r=%d\n", in->id, x, r);
+ dprintk(" crush_bucket_choose %d x=%d r=%d\n", in->id, x, r);
switch (in->alg) {
case CRUSH_BUCKET_UNIFORM:
return bucket_uniform_choose((struct crush_bucket_uniform *)in,
@@ -264,7 +264,7 @@ static int crush_bucket_choose(struct crush_bucket *in, int x, int r)
*/
static int is_out(struct crush_map *map, __u32 *weight, int item, int x)
{
- if (weight[item] >= 0x1000)
+ if (weight[item] >= 0x10000)
return 0;
if (weight[item] == 0)
return 1;
@@ -305,7 +305,9 @@ static int crush_choose(struct crush_map *map,
int itemtype;
int collide, reject;
const int orig_tries = 5; /* attempts before we fall back to search */
- dprintk("choose bucket %d x %d outpos %d\n", bucket->id, x, outpos);
+
+ dprintk("CHOOSE%s bucket %d x %d outpos %d numrep %d\n", recurse_to_leaf ? "_LEAF" : "",
+ bucket->id, x, outpos, numrep);
for (rep = outpos; rep < numrep; rep++) {
/* keep trying until we get a non-out, non-colliding item */
@@ -366,6 +368,7 @@ static int crush_choose(struct crush_map *map,
BUG_ON(item >= 0 ||
(-1-item) >= map->max_buckets);
in = map->buckets[-1-item];
+ retry_bucket = 1;
continue;
}
@@ -377,15 +380,25 @@ static int crush_choose(struct crush_map *map,
}
}
- if (recurse_to_leaf &&
- item < 0 &&
- crush_choose(map, map->buckets[-1-item],
- weight,
- x, outpos+1, 0,
- out2, outpos,
- firstn, 0, NULL) <= outpos) {
- reject = 1;
- } else {
+ reject = 0;
+ if (recurse_to_leaf) {
+ if (item < 0) {
+ if (crush_choose(map,
+ map->buckets[-1-item],
+ weight,
+ x, outpos+1, 0,
+ out2, outpos,
+ firstn, 0,
+ NULL) <= outpos)
+ /* didn't get leaf */
+ reject = 1;
+ } else {
+ /* we already have a leaf! */
+ out2[outpos] = item;
+ }
+ }
+
+ if (!reject) {
/* out? */
if (itemtype == 0)
reject = is_out(map, weight,
@@ -424,12 +437,12 @@ reject:
continue;
}
- dprintk("choose got %d\n", item);
+ dprintk("CHOOSE got %d\n", item);
out[outpos] = item;
outpos++;
}
- dprintk("choose returns %d\n", outpos);
+ dprintk("CHOOSE returns %d\n", outpos);
return outpos;
}
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index 3be33fb..f2f5332 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -261,7 +261,7 @@ static int osdc_show(struct seq_file *s, void *pp)
static int caps_show(struct seq_file *s, void *p)
{
- struct ceph_client *client = p;
+ struct ceph_client *client = s->private;
int total, avail, used, reserved, min;
ceph_reservation_status(client, &total, &avail, &used, &reserved, &min);
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index f857193..f94ed3c 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -266,6 +266,7 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir)
spin_lock(&inode->i_lock);
if ((filp->f_pos == 2 || fi->dentry) &&
!ceph_test_opt(client, NOASYNCREADDIR) &&
+ ceph_snap(inode) != CEPH_SNAPDIR &&
(ci->i_ceph_flags & CEPH_I_COMPLETE) &&
__ceph_caps_issued_mask(ci, CEPH_CAP_FILE_SHARED, 1)) {
err = __dcache_readdir(filp, dirent, filldir);
@@ -1013,18 +1014,22 @@ out_touch:
/*
* When a dentry is released, clear the dir I_COMPLETE if it was part
- * of the current dir gen.
+ * of the current dir gen or if this is in the snapshot namespace.
*/
static void ceph_dentry_release(struct dentry *dentry)
{
struct ceph_dentry_info *di = ceph_dentry(dentry);
struct inode *parent_inode = dentry->d_parent->d_inode;
+ u64 snapid = ceph_snap(parent_inode);
- if (parent_inode) {
+ dout("dentry_release %p parent %p\n", dentry, parent_inode);
+
+ if (parent_inode && snapid != CEPH_SNAPDIR) {
struct ceph_inode_info *ci = ceph_inode(parent_inode);
spin_lock(&parent_inode->i_lock);
- if (ci->i_shared_gen == di->lease_shared_gen) {
+ if (ci->i_shared_gen == di->lease_shared_gen ||
+ snapid <= CEPH_MAXSNAP) {
dout(" clearing %p complete (d_release)\n",
parent_inode);
ci->i_ceph_flags &= ~CEPH_I_COMPLETE;
@@ -1241,7 +1246,9 @@ struct dentry_operations ceph_dentry_ops = {
struct dentry_operations ceph_snapdir_dentry_ops = {
.d_revalidate = ceph_snapdir_d_revalidate,
+ .d_release = ceph_dentry_release,
};
struct dentry_operations ceph_snap_dentry_ops = {
+ .d_release = ceph_dentry_release,
};
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 6251a15..7c08698 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -265,7 +265,7 @@ int ceph_release(struct inode *inode, struct file *file)
kmem_cache_free(ceph_file_cachep, cf);
/* wake up anyone waiting for caps on this inode */
- wake_up(&ci->i_cap_wq);
+ wake_up_all(&ci->i_cap_wq);
return 0;
}
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index ab47f46..389f9db 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -854,8 +854,8 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in,
d_drop(dn);
realdn = d_materialise_unique(dn, in);
if (IS_ERR(realdn)) {
- pr_err("splice_dentry error %p inode %p ino %llx.%llx\n",
- dn, in, ceph_vinop(in));
+ pr_err("splice_dentry error %ld %p inode %p ino %llx.%llx\n",
+ PTR_ERR(realdn), dn, in, ceph_vinop(in));
if (prehash)
*prehash = false; /* don't rehash on error */
dn = realdn; /* note realdn contains the error */
@@ -1199,8 +1199,10 @@ retry_lookup:
goto out;
}
err = ceph_init_dentry(dn);
- if (err < 0)
+ if (err < 0) {
+ dput(dn);
goto out;
+ }
} else if (dn->d_inode &&
(ceph_ino(dn->d_inode) != vino.ino ||
ceph_snap(dn->d_inode) != vino.snap)) {
@@ -1234,18 +1236,23 @@ retry_lookup:
goto out;
}
dn = splice_dentry(dn, in, NULL);
+ if (IS_ERR(dn))
+ dn = NULL;
}
if (fill_inode(in, &rinfo->dir_in[i], NULL, session,
req->r_request_started, -1,
&req->r_caps_reservation) < 0) {
pr_err("fill_inode badness on %p\n", in);
- dput(dn);
- continue;
+ goto next_item;
}
- update_dentry_lease(dn, rinfo->dir_dlease[i],
- req->r_session, req->r_request_started);
- dput(dn);
+ if (dn)
+ update_dentry_lease(dn, rinfo->dir_dlease[i],
+ req->r_session,
+ req->r_request_started);
+next_item:
+ if (dn)
+ dput(dn);
}
req->r_did_prepopulate = true;
@@ -1494,7 +1501,7 @@ retry:
if (wrbuffer_refs == 0)
ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
if (wake)
- wake_up(&ci->i_cap_wq);
+ wake_up_all(&ci->i_cap_wq);
}
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 1766947..dd440bd 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -868,7 +868,7 @@ static int wake_up_session_cb(struct inode *inode, struct ceph_cap *cap,
{
struct ceph_inode_info *ci = ceph_inode(inode);
- wake_up(&ci->i_cap_wq);
+ wake_up_all(&ci->i_cap_wq);
if (arg) {
spin_lock(&inode->i_lock);
ci->i_wanted_max_size = 0;
@@ -1514,6 +1514,9 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc,
ceph_encode_filepath(&p, end, ino1, path1);
ceph_encode_filepath(&p, end, ino2, path2);
+ /* make note of release offset, in case we need to replay */
+ req->r_request_release_offset = p - msg->front.iov_base;
+
/* cap releases */
releases = 0;
if (req->r_inode_drop)
@@ -1561,7 +1564,7 @@ static void complete_request(struct ceph_mds_client *mdsc,
if (req->r_callback)
req->r_callback(mdsc, req);
else
- complete(&req->r_completion);
+ complete_all(&req->r_completion);
}
/*
@@ -1580,6 +1583,32 @@ static int __prepare_send_request(struct ceph_mds_client *mdsc,
dout("prepare_send_request %p tid %lld %s (attempt %d)\n", req,
req->r_tid, ceph_mds_op_name(req->r_op), req->r_attempts);
+ if (req->r_got_unsafe) {
+ /*
+ * Replay. Do not regenerate message (and rebuild
+ * paths, etc.); just use the original message.
+ * Rebuilding paths will break for renames because
+ * d_move mangles the src name.
+ */
+ msg = req->r_request;
+ rhead = msg->front.iov_base;
+
+ flags = le32_to_cpu(rhead->flags);
+ flags |= CEPH_MDS_FLAG_REPLAY;
+ rhead->flags = cpu_to_le32(flags);
+
+ if (req->r_target_inode)
+ rhead->ino = cpu_to_le64(ceph_ino(req->r_target_inode));
+
+ rhead->num_retry = req->r_attempts - 1;
+
+ /* remove cap/dentry releases from message */
+ rhead->num_releases = 0;
+ msg->hdr.front_len = cpu_to_le32(req->r_request_release_offset);
+ msg->front.iov_len = req->r_request_release_offset;
+ return 0;
+ }
+
if (req->r_request) {
ceph_msg_put(req->r_request);
req->r_request = NULL;
@@ -1601,13 +1630,9 @@ static int __prepare_send_request(struct ceph_mds_client *mdsc,
rhead->flags = cpu_to_le32(flags);
rhead->num_fwd = req->r_num_fwd;
rhead->num_retry = req->r_attempts - 1;
+ rhead->ino = 0;
dout(" r_locked_dir = %p\n", req->r_locked_dir);
-
- if (req->r_target_inode && req->r_got_unsafe)
- rhead->ino = cpu_to_le64(ceph_ino(req->r_target_inode));
- else
- rhead->ino = 0;
return 0;
}
@@ -1907,7 +1932,7 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
if (head->safe) {
req->r_got_safe = true;
__unregister_request(mdsc, req);
- complete(&req->r_safe_completion);
+ complete_all(&req->r_safe_completion);
if (req->r_got_unsafe) {
/*
@@ -1922,7 +1947,7 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
/* last unsafe request during umount? */
if (mdsc->stopping && !__get_oldest_req(mdsc))
- complete(&mdsc->safe_umount_waiters);
+ complete_all(&mdsc->safe_umount_waiters);
mutex_unlock(&mdsc->mutex);
goto out;
}
@@ -2101,7 +2126,7 @@ static void handle_session(struct ceph_mds_session *session,
pr_info("mds%d reconnect denied\n", session->s_mds);
remove_session_caps(session);
wake = 1; /* for good measure */
- complete(&mdsc->session_close_waiters);
+ complete_all(&mdsc->session_close_waiters);
kick_requests(mdsc, mds);
break;
@@ -2783,6 +2808,12 @@ void ceph_mdsc_pre_umount(struct ceph_mds_client *mdsc)
drop_leases(mdsc);
ceph_flush_dirty_caps(mdsc);
wait_requests(mdsc);
+
+ /*
+ * wait for reply handlers to drop their request refs and
+ * their inode/dcache refs
+ */
+ ceph_msgr_flush();
}
/*
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index b292fa4..952410c 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -188,6 +188,7 @@ struct ceph_mds_request {
int r_old_inode_drop, r_old_inode_unless;
struct ceph_msg *r_request; /* original request */
+ int r_request_release_offset;
struct ceph_msg *r_reply;
struct ceph_mds_reply_info_parsed r_reply_info;
int r_err;
diff --git a/fs/ceph/messenger.c b/fs/ceph/messenger.c
index 64b8b1f..15167b2 100644
--- a/fs/ceph/messenger.c
+++ b/fs/ceph/messenger.c
@@ -43,7 +43,8 @@ static void ceph_fault(struct ceph_connection *con);
* nicely render a sockaddr as a string.
*/
#define MAX_ADDR_STR 20
-static char addr_str[MAX_ADDR_STR][40];
+#define MAX_ADDR_STR_LEN 60
+static char addr_str[MAX_ADDR_STR][MAX_ADDR_STR_LEN];
static DEFINE_SPINLOCK(addr_str_lock);
static int last_addr_str;
@@ -52,7 +53,6 @@ const char *pr_addr(const struct sockaddr_storage *ss)
int i;
char *s;
struct sockaddr_in *in4 = (void *)ss;
- unsigned char *quad = (void *)&in4->sin_addr.s_addr;
struct sockaddr_in6 *in6 = (void *)ss;
spin_lock(&addr_str_lock);
@@ -64,25 +64,13 @@ const char *pr_addr(const struct sockaddr_storage *ss)
switch (ss->ss_family) {
case AF_INET:
- sprintf(s, "%u.%u.%u.%u:%u",
- (unsigned int)quad[0],
- (unsigned int)quad[1],
- (unsigned int)quad[2],
- (unsigned int)quad[3],
- (unsigned int)ntohs(in4->sin_port));
+ snprintf(s, MAX_ADDR_STR_LEN, "%pI4:%u", &in4->sin_addr,
+ (unsigned int)ntohs(in4->sin_port));
break;
case AF_INET6:
- sprintf(s, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x:%u",
- in6->sin6_addr.s6_addr16[0],
- in6->sin6_addr.s6_addr16[1],
- in6->sin6_addr.s6_addr16[2],
- in6->sin6_addr.s6_addr16[3],
- in6->sin6_addr.s6_addr16[4],
- in6->sin6_addr.s6_addr16[5],
- in6->sin6_addr.s6_addr16[6],
- in6->sin6_addr.s6_addr16[7],
- (unsigned int)ntohs(in6->sin6_port));
+ snprintf(s, MAX_ADDR_STR_LEN, "[%pI6c]:%u", &in6->sin6_addr,
+ (unsigned int)ntohs(in6->sin6_port));
break;
default:
@@ -215,12 +203,13 @@ static void set_sock_callbacks(struct socket *sock,
*/
static struct socket *ceph_tcp_connect(struct ceph_connection *con)
{
- struct sockaddr *paddr = (struct sockaddr *)&con->peer_addr.in_addr;
+ struct sockaddr_storage *paddr = &con->peer_addr.in_addr;
struct socket *sock;
int ret;
BUG_ON(con->sock);
- ret = sock_create_kern(AF_INET, SOCK_STREAM, IPPROTO_TCP, &sock);
+ ret = sock_create_kern(con->peer_addr.in_addr.ss_family, SOCK_STREAM,
+ IPPROTO_TCP, &sock);
if (ret)
return ERR_PTR(ret);
con->sock = sock;
@@ -234,7 +223,8 @@ static struct socket *ceph_tcp_connect(struct ceph_connection *con)
dout("connect %s\n", pr_addr(&con->peer_addr.in_addr));
- ret = sock->ops->connect(sock, paddr, sizeof(*paddr), O_NONBLOCK);
+ ret = sock->ops->connect(sock, (struct sockaddr *)paddr, sizeof(*paddr),
+ O_NONBLOCK);
if (ret == -EINPROGRESS) {
dout("connect %s EINPROGRESS sk_state = %u\n",
pr_addr(&con->peer_addr.in_addr),
@@ -657,7 +647,7 @@ static void prepare_write_connect(struct ceph_messenger *msgr,
dout("prepare_write_connect %p cseq=%d gseq=%d proto=%d\n", con,
con->connect_seq, global_seq, proto);
- con->out_connect.features = CEPH_FEATURE_SUPPORTED_CLIENT;
+ con->out_connect.features = cpu_to_le64(CEPH_FEATURE_SUPPORTED_CLIENT);
con->out_connect.host_type = cpu_to_le32(CEPH_ENTITY_TYPE_CLIENT);
con->out_connect.connect_seq = cpu_to_le32(con->connect_seq);
con->out_connect.global_seq = cpu_to_le32(global_seq);
@@ -1009,19 +999,32 @@ int ceph_parse_ips(const char *c, const char *end,
struct sockaddr_in *in4 = (void *)ss;
struct sockaddr_in6 *in6 = (void *)ss;
int port;
+ char delim = ',';
+
+ if (*p == '[') {
+ delim = ']';
+ p++;
+ }
memset(ss, 0, sizeof(*ss));
if (in4_pton(p, end - p, (u8 *)&in4->sin_addr.s_addr,
- ',', &ipend)) {
+ delim, &ipend))
ss->ss_family = AF_INET;
- } else if (in6_pton(p, end - p, (u8 *)&in6->sin6_addr.s6_addr,
- ',', &ipend)) {
+ else if (in6_pton(p, end - p, (u8 *)&in6->sin6_addr.s6_addr,
+ delim, &ipend))
ss->ss_family = AF_INET6;
- } else {
+ else
goto bad;
- }
p = ipend;
+ if (delim == ']') {
+ if (*p != ']') {
+ dout("missing matching ']'\n");
+ goto bad;
+ }
+ p++;
+ }
+
/* port? */
if (p < end && *p == ':') {
port = 0;
@@ -1055,7 +1058,7 @@ int ceph_parse_ips(const char *c, const char *end,
return 0;
bad:
- pr_err("parse_ips bad ip '%s'\n", c);
+ pr_err("parse_ips bad ip '%.*s'\n", (int)(end - c), c);
return -EINVAL;
}
@@ -1396,10 +1399,12 @@ static int read_partial_message(struct ceph_connection *con)
if (!con->in_msg) {
dout("got hdr type %d front %d data %d\n", con->in_hdr.type,
con->in_hdr.front_len, con->in_hdr.data_len);
+ skip = 0;
con->in_msg = ceph_alloc_msg(con, &con->in_hdr, &skip);
if (skip) {
/* skip this message */
dout("alloc_msg said skip message\n");
+ BUG_ON(con->in_msg);
con->in_base_pos = -front_len - middle_len - data_len -
sizeof(m->footer);
con->in_tag = CEPH_MSGR_TAG_READY;
@@ -2013,20 +2018,20 @@ void ceph_con_revoke(struct ceph_connection *con, struct ceph_msg *msg)
{
mutex_lock(&con->mutex);
if (!list_empty(&msg->list_head)) {
- dout("con_revoke %p msg %p\n", con, msg);
+ dout("con_revoke %p msg %p - was on queue\n", con, msg);
list_del_init(&msg->list_head);
ceph_msg_put(msg);
msg->hdr.seq = 0;
- if (con->out_msg == msg) {
- ceph_msg_put(con->out_msg);
- con->out_msg = NULL;
- }
+ }
+ if (con->out_msg == msg) {
+ dout("con_revoke %p msg %p - was sending\n", con, msg);
+ con->out_msg = NULL;
if (con->out_kvec_is_msg) {
con->out_skip = con->out_kvec_bytes;
con->out_kvec_is_msg = false;
}
- } else {
- dout("con_revoke %p msg %p - not queued (sent?)\n", con, msg);
+ ceph_msg_put(msg);
+ msg->hdr.seq = 0;
}
mutex_unlock(&con->mutex);
}
diff --git a/fs/ceph/mon_client.c b/fs/ceph/mon_client.c
index 07a5399..54fe01c 100644
--- a/fs/ceph/mon_client.c
+++ b/fs/ceph/mon_client.c
@@ -345,7 +345,7 @@ static void ceph_monc_handle_map(struct ceph_mon_client *monc,
out:
mutex_unlock(&monc->mutex);
- wake_up(&client->auth_wq);
+ wake_up_all(&client->auth_wq);
}
/*
@@ -462,7 +462,7 @@ static void handle_statfs_reply(struct ceph_mon_client *monc,
}
mutex_unlock(&monc->mutex);
if (req) {
- complete(&req->completion);
+ complete_all(&req->completion);
put_generic_request(req);
}
return;
@@ -718,14 +718,15 @@ static void handle_auth_reply(struct ceph_mon_client *monc,
monc->m_auth->front_max);
if (ret < 0) {
monc->client->auth_err = ret;
- wake_up(&monc->client->auth_wq);
+ wake_up_all(&monc->client->auth_wq);
} else if (ret > 0) {
__send_prepared_auth_request(monc, ret);
} else if (!was_auth && monc->auth->ops->is_authenticated(monc->auth)) {
dout("authenticated, starting session\n");
monc->client->msgr->inst.name.type = CEPH_ENTITY_TYPE_CLIENT;
- monc->client->msgr->inst.name.num = monc->auth->global_id;
+ monc->client->msgr->inst.name.num =
+ cpu_to_le64(monc->auth->global_id);
__send_subscribe(monc);
__resend_generic_request(monc);
diff --git a/fs/ceph/osd_client.c b/fs/ceph/osd_client.c
index d25b4ad..e385223 100644
--- a/fs/ceph/osd_client.c
+++ b/fs/ceph/osd_client.c
@@ -862,12 +862,12 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
if (req->r_callback)
req->r_callback(req, msg);
else
- complete(&req->r_completion);
+ complete_all(&req->r_completion);
if (flags & CEPH_OSD_FLAG_ONDISK) {
if (req->r_safe_callback)
req->r_safe_callback(req, msg);
- complete(&req->r_safe_completion); /* fsync waiter */
+ complete_all(&req->r_safe_completion); /* fsync waiter */
}
done:
@@ -1083,7 +1083,7 @@ done:
if (newmap)
kick_requests(osdc, NULL);
up_read(&osdc->map_sem);
- wake_up(&osdc->client->auth_wq);
+ wake_up_all(&osdc->client->auth_wq);
return;
bad:
@@ -1344,7 +1344,7 @@ static void dispatch(struct ceph_connection *con, struct ceph_msg *msg)
int type = le16_to_cpu(msg->hdr.type);
if (!osd)
- return;
+ goto out;
osdc = osd->o_osdc;
switch (type) {
@@ -1359,6 +1359,7 @@ static void dispatch(struct ceph_connection *con, struct ceph_msg *msg)
pr_err("received unknown message type %d %s\n", type,
ceph_msg_type_name(type));
}
+out:
ceph_msg_put(msg);
}
diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c
index ddc656f..416d46a 100644
--- a/fs/ceph/osdmap.c
+++ b/fs/ceph/osdmap.c
@@ -568,6 +568,7 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
if (ev > CEPH_PG_POOL_VERSION) {
pr_warning("got unknown v %d > %d of ceph_pg_pool\n",
ev, CEPH_PG_POOL_VERSION);
+ kfree(pi);
goto bad;
}
__decode_pool(p, pi);
@@ -707,6 +708,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
newcrush = crush_decode(*p, min(*p+len, end));
if (IS_ERR(newcrush))
return ERR_CAST(newcrush);
+ *p += len;
}
/* new flags? */
@@ -829,12 +831,13 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
/* remove any? */
while (rbp && pgid_cmp(rb_entry(rbp, struct ceph_pg_mapping,
node)->pgid, pgid) <= 0) {
- struct rb_node *cur = rbp;
+ struct ceph_pg_mapping *cur =
+ rb_entry(rbp, struct ceph_pg_mapping, node);
+
rbp = rb_next(rbp);
- dout(" removed pg_temp %llx\n",
- *(u64 *)&rb_entry(cur, struct ceph_pg_mapping,
- node)->pgid);
- rb_erase(cur, &map->pg_temp);
+ dout(" removed pg_temp %llx\n", *(u64 *)&cur->pgid);
+ rb_erase(&cur->node, &map->pg_temp);
+ kfree(cur);
}
if (pglen) {
@@ -850,19 +853,22 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
for (j = 0; j < pglen; j++)
pg->osds[j] = ceph_decode_32(p);
err = __insert_pg_mapping(pg, &map->pg_temp);
- if (err)
+ if (err) {
+ kfree(pg);
goto bad;
+ }
dout(" added pg_temp %llx len %d\n", *(u64 *)&pgid,
pglen);
}
}
while (rbp) {
- struct rb_node *cur = rbp;
+ struct ceph_pg_mapping *cur =
+ rb_entry(rbp, struct ceph_pg_mapping, node);
+
rbp = rb_next(rbp);
- dout(" removed pg_temp %llx\n",
- *(u64 *)&rb_entry(cur, struct ceph_pg_mapping,
- node)->pgid);
- rb_erase(cur, &map->pg_temp);
+ dout(" removed pg_temp %llx\n", *(u64 *)&cur->pgid);
+ rb_erase(&cur->node, &map->pg_temp);
+ kfree(cur);
}
/* ignore the rest */
diff --git a/fs/char_dev.c b/fs/char_dev.c
index d6db933..f80a4f2 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -20,6 +20,7 @@
#include <linux/cdev.h>
#include <linux/mutex.h>
#include <linux/backing-dev.h>
+#include <linux/tty.h>
#include "internal.h"
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 80f3525..917b7d4 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -2,7 +2,6 @@ config CIFS
tristate "CIFS support (advanced network filesystem, SMBFS successor)"
depends on INET
select NLS
- select SLOW_WORK
help
This is the client VFS module for the Common Internet File System
(CIFS) protocol which is the successor to the Server Message Block
@@ -71,14 +70,14 @@ config CIFS_WEAK_PW_HASH
If unsure, say N.
config CIFS_UPCALL
- bool "Kerberos/SPNEGO advanced session setup"
- depends on CIFS && KEYS
- help
- Enables an upcall mechanism for CIFS which accesses
- userspace helper utilities to provide SPNEGO packaged (RFC 4178)
- Kerberos tickets which are needed to mount to certain secure servers
- (for which more secure Kerberos authentication is required). If
- unsure, say N.
+ bool "Kerberos/SPNEGO advanced session setup"
+ depends on CIFS && KEYS
+ select DNS_RESOLVER
+ help
+ Enables an upcall mechanism for CIFS which accesses userspace helper
+ utilities to provide SPNEGO packaged (RFC 4178) Kerberos tickets
+ which are needed to mount to certain secure servers (for which more
+ secure Kerberos authentication is required). If unsure, say N.
config CIFS_XATTR
bool "CIFS extended attributes"
@@ -122,6 +121,7 @@ config CIFS_DEBUG2
config CIFS_DFS_UPCALL
bool "DFS feature support"
depends on CIFS && KEYS
+ select DNS_RESOLVER
help
Distributed File System (DFS) support is used to access shares
transparently in an enterprise name space, even if the share
@@ -131,6 +131,15 @@ config CIFS_DFS_UPCALL
IP addresses) which is needed for implicit mounts of DFS junction
points. If unsure, say N.
+config CIFS_FSCACHE
+ bool "Provide CIFS client caching support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
+ help
+ Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
+ to be cached locally on disk through the general filesystem cache
+ manager. If unsure, say N.
+
config CIFS_EXPERIMENTAL
bool "CIFS Experimental Features (EXPERIMENTAL)"
depends on CIFS && EXPERIMENTAL
diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile
index 9948c003..adefa60 100644
--- a/fs/cifs/Makefile
+++ b/fs/cifs/Makefile
@@ -11,3 +11,5 @@ cifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \
cifs-$(CONFIG_CIFS_UPCALL) += cifs_spnego.o
cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o
+
+cifs-$(CONFIG_CIFS_FSCACHE) += fscache.o cache.o
diff --git a/fs/cifs/README b/fs/cifs/README
index a727b7c..a7081ee 100644
--- a/fs/cifs/README
+++ b/fs/cifs/README
@@ -568,8 +568,9 @@ module can be displayed via modinfo.
Misc /proc/fs/cifs Flags and Debug Info
=======================================
Informational pseudo-files:
-DebugData Displays information about active CIFS sessions
- and shares, as well as the cifs.ko version.
+DebugData Displays information about active CIFS sessions and
+ shares, features enabled as well as the cifs.ko
+ version.
Stats Lists summary resource usage information as well as per
share statistics, if CONFIG_CIFS_STATS in enabled
in the kernel configuration.
diff --git a/fs/cifs/cache.c b/fs/cifs/cache.c
new file mode 100644
index 0000000..224d7bbd
--- /dev/null
+++ b/fs/cifs/cache.c
@@ -0,0 +1,331 @@
+/*
+ * fs/cifs/cache.c - CIFS filesystem cache index structure definitions
+ *
+ * Copyright (c) 2010 Novell, Inc.
+ * Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "fscache.h"
+#include "cifs_debug.h"
+
+/*
+ * CIFS filesystem definition for FS-Cache
+ */
+struct fscache_netfs cifs_fscache_netfs = {
+ .name = "cifs",
+ .version = 0,
+};
+
+/*
+ * Register CIFS for caching with FS-Cache
+ */
+int cifs_fscache_register(void)
+{
+ return fscache_register_netfs(&cifs_fscache_netfs);
+}
+
+/*
+ * Unregister CIFS for caching
+ */
+void cifs_fscache_unregister(void)
+{
+ fscache_unregister_netfs(&cifs_fscache_netfs);
+}
+
+/*
+ * Key layout of CIFS server cache index object
+ */
+struct cifs_server_key {
+ uint16_t family; /* address family */
+ uint16_t port; /* IP port */
+ union {
+ struct in_addr ipv4_addr;
+ struct in6_addr ipv6_addr;
+ } addr[0];
+};
+
+/*
+ * Server object keyed by {IPaddress,port,family} tuple
+ */
+static uint16_t cifs_server_get_key(const void *cookie_netfs_data,
+ void *buffer, uint16_t maxbuf)
+{
+ const struct TCP_Server_Info *server = cookie_netfs_data;
+ const struct sockaddr *sa = (struct sockaddr *) &server->addr.sockAddr;
+ struct cifs_server_key *key = buffer;
+ uint16_t key_len = sizeof(struct cifs_server_key);
+
+ memset(key, 0, key_len);
+
+ /*
+ * Should not be a problem as sin_family/sin6_family overlays
+ * sa_family field
+ */
+ switch (sa->sa_family) {
+ case AF_INET:
+ key->family = server->addr.sockAddr.sin_family;
+ key->port = server->addr.sockAddr.sin_port;
+ key->addr[0].ipv4_addr = server->addr.sockAddr.sin_addr;
+ key_len += sizeof(key->addr[0].ipv4_addr);
+ break;
+
+ case AF_INET6:
+ key->family = server->addr.sockAddr6.sin6_family;
+ key->port = server->addr.sockAddr6.sin6_port;
+ key->addr[0].ipv6_addr = server->addr.sockAddr6.sin6_addr;
+ key_len += sizeof(key->addr[0].ipv6_addr);
+ break;
+
+ default:
+ cERROR(1, "CIFS: Unknown network family '%d'", sa->sa_family);
+ key_len = 0;
+ break;
+ }
+
+ return key_len;
+}
+
+/*
+ * Server object for FS-Cache
+ */
+const struct fscache_cookie_def cifs_fscache_server_index_def = {
+ .name = "CIFS.server",
+ .type = FSCACHE_COOKIE_TYPE_INDEX,
+ .get_key = cifs_server_get_key,
+};
+
+/*
+ * Auxiliary data attached to CIFS superblock within the cache
+ */
+struct cifs_fscache_super_auxdata {
+ u64 resource_id; /* unique server resource id */
+};
+
+static char *extract_sharename(const char *treename)
+{
+ const char *src;
+ char *delim, *dst;
+ int len;
+
+ /* skip double chars at the beginning */
+ src = treename + 2;
+
+ /* share name is always preceded by '\\' now */
+ delim = strchr(src, '\\');
+ if (!delim)
+ return ERR_PTR(-EINVAL);
+ delim++;
+ len = strlen(delim);
+
+ /* caller has to free the memory */
+ dst = kstrndup(delim, len, GFP_KERNEL);
+ if (!dst)
+ return ERR_PTR(-ENOMEM);
+
+ return dst;
+}
+
+/*
+ * Superblock object currently keyed by share name
+ */
+static uint16_t cifs_super_get_key(const void *cookie_netfs_data, void *buffer,
+ uint16_t maxbuf)
+{
+ const struct cifsTconInfo *tcon = cookie_netfs_data;
+ char *sharename;
+ uint16_t len;
+
+ sharename = extract_sharename(tcon->treeName);
+ if (IS_ERR(sharename)) {
+ cFYI(1, "CIFS: couldn't extract sharename\n");
+ sharename = NULL;
+ return 0;
+ }
+
+ len = strlen(sharename);
+ if (len > maxbuf)
+ return 0;
+
+ memcpy(buffer, sharename, len);
+
+ kfree(sharename);
+
+ return len;
+}
+
+static uint16_t
+cifs_fscache_super_get_aux(const void *cookie_netfs_data, void *buffer,
+ uint16_t maxbuf)
+{
+ struct cifs_fscache_super_auxdata auxdata;
+ const struct cifsTconInfo *tcon = cookie_netfs_data;
+
+ memset(&auxdata, 0, sizeof(auxdata));
+ auxdata.resource_id = tcon->resource_id;
+
+ if (maxbuf > sizeof(auxdata))
+ maxbuf = sizeof(auxdata);
+
+ memcpy(buffer, &auxdata, maxbuf);
+
+ return maxbuf;
+}
+
+static enum
+fscache_checkaux cifs_fscache_super_check_aux(void *cookie_netfs_data,
+ const void *data,
+ uint16_t datalen)
+{
+ struct cifs_fscache_super_auxdata auxdata;
+ const struct cifsTconInfo *tcon = cookie_netfs_data;
+
+ if (datalen != sizeof(auxdata))
+ return FSCACHE_CHECKAUX_OBSOLETE;
+
+ memset(&auxdata, 0, sizeof(auxdata));
+ auxdata.resource_id = tcon->resource_id;
+
+ if (memcmp(data, &auxdata, datalen) != 0)
+ return FSCACHE_CHECKAUX_OBSOLETE;
+
+ return FSCACHE_CHECKAUX_OKAY;
+}
+
+/*
+ * Superblock object for FS-Cache
+ */
+const struct fscache_cookie_def cifs_fscache_super_index_def = {
+ .name = "CIFS.super",
+ .type = FSCACHE_COOKIE_TYPE_INDEX,
+ .get_key = cifs_super_get_key,
+ .get_aux = cifs_fscache_super_get_aux,
+ .check_aux = cifs_fscache_super_check_aux,
+};
+
+/*
+ * Auxiliary data attached to CIFS inode within the cache
+ */
+struct cifs_fscache_inode_auxdata {
+ struct timespec last_write_time;
+ struct timespec last_change_time;
+ u64 eof;
+};
+
+static uint16_t cifs_fscache_inode_get_key(const void *cookie_netfs_data,
+ void *buffer, uint16_t maxbuf)
+{
+ const struct cifsInodeInfo *cifsi = cookie_netfs_data;
+ uint16_t keylen;
+
+ /* use the UniqueId as the key */
+ keylen = sizeof(cifsi->uniqueid);
+ if (keylen > maxbuf)
+ keylen = 0;
+ else
+ memcpy(buffer, &cifsi->uniqueid, keylen);
+
+ return keylen;
+}
+
+static void
+cifs_fscache_inode_get_attr(const void *cookie_netfs_data, uint64_t *size)
+{
+ const struct cifsInodeInfo *cifsi = cookie_netfs_data;
+
+ *size = cifsi->vfs_inode.i_size;
+}
+
+static uint16_t
+cifs_fscache_inode_get_aux(const void *cookie_netfs_data, void *buffer,
+ uint16_t maxbuf)
+{
+ struct cifs_fscache_inode_auxdata auxdata;
+ const struct cifsInodeInfo *cifsi = cookie_netfs_data;
+
+ memset(&auxdata, 0, sizeof(auxdata));
+ auxdata.eof = cifsi->server_eof;
+ auxdata.last_write_time = cifsi->vfs_inode.i_mtime;
+ auxdata.last_change_time = cifsi->vfs_inode.i_ctime;
+
+ if (maxbuf > sizeof(auxdata))
+ maxbuf = sizeof(auxdata);
+
+ memcpy(buffer, &auxdata, maxbuf);
+
+ return maxbuf;
+}
+
+static enum
+fscache_checkaux cifs_fscache_inode_check_aux(void *cookie_netfs_data,
+ const void *data,
+ uint16_t datalen)
+{
+ struct cifs_fscache_inode_auxdata auxdata;
+ struct cifsInodeInfo *cifsi = cookie_netfs_data;
+
+ if (datalen != sizeof(auxdata))
+ return FSCACHE_CHECKAUX_OBSOLETE;
+
+ memset(&auxdata, 0, sizeof(auxdata));
+ auxdata.eof = cifsi->server_eof;
+ auxdata.last_write_time = cifsi->vfs_inode.i_mtime;
+ auxdata.last_change_time = cifsi->vfs_inode.i_ctime;
+
+ if (memcmp(data, &auxdata, datalen) != 0)
+ return FSCACHE_CHECKAUX_OBSOLETE;
+
+ return FSCACHE_CHECKAUX_OKAY;
+}
+
+static void cifs_fscache_inode_now_uncached(void *cookie_netfs_data)
+{
+ struct cifsInodeInfo *cifsi = cookie_netfs_data;
+ struct pagevec pvec;
+ pgoff_t first;
+ int loop, nr_pages;
+
+ pagevec_init(&pvec, 0);
+ first = 0;
+
+ cFYI(1, "cifs inode 0x%p now uncached", cifsi);
+
+ for (;;) {
+ nr_pages = pagevec_lookup(&pvec,
+ cifsi->vfs_inode.i_mapping, first,
+ PAGEVEC_SIZE - pagevec_count(&pvec));
+ if (!nr_pages)
+ break;
+
+ for (loop = 0; loop < nr_pages; loop++)
+ ClearPageFsCache(pvec.pages[loop]);
+
+ first = pvec.pages[nr_pages - 1]->index + 1;
+
+ pvec.nr = nr_pages;
+ pagevec_release(&pvec);
+ cond_resched();
+ }
+}
+
+const struct fscache_cookie_def cifs_fscache_inode_object_def = {
+ .name = "CIFS.uniqueid",
+ .type = FSCACHE_COOKIE_TYPE_DATAFILE,
+ .get_key = cifs_fscache_inode_get_key,
+ .get_attr = cifs_fscache_inode_get_attr,
+ .get_aux = cifs_fscache_inode_get_aux,
+ .check_aux = cifs_fscache_inode_check_aux,
+ .now_uncached = cifs_fscache_inode_now_uncached,
+};
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 4fce6e6..eb1ba49 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -119,6 +119,31 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
"Display Internal CIFS Data Structures for Debugging\n"
"---------------------------------------------------\n");
seq_printf(m, "CIFS Version %s\n", CIFS_VERSION);
+ seq_printf(m, "Features: ");
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ seq_printf(m, "dfs");
+ seq_putc(m, ' ');
+#endif
+#ifdef CONFIG_CIFS_FSCACHE
+ seq_printf(m, "fscache");
+ seq_putc(m, ' ');
+#endif
+#ifdef CONFIG_CIFS_WEAK_PW_HASH
+ seq_printf(m, "lanman");
+ seq_putc(m, ' ');
+#endif
+#ifdef CONFIG_CIFS_POSIX
+ seq_printf(m, "posix");
+ seq_putc(m, ' ');
+#endif
+#ifdef CONFIG_CIFS_UPCALL
+ seq_printf(m, "spnego");
+ seq_putc(m, ' ');
+#endif
+#ifdef CONFIG_CIFS_XATTR
+ seq_printf(m, "xattr");
+#endif
+ seq_putc(m, '\n');
seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
seq_printf(m, "Servers:");
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index ac19a6f..d6ced7a 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -141,7 +141,7 @@ char *cifs_compose_mount_options(const char *sb_mountdata,
}
rc = dns_resolve_server_name_to_ip(*devname, &srvIP);
- if (rc != 0) {
+ if (rc < 0) {
cERROR(1, "%s: Failed to resolve server part of %s to IP: %d",
__func__, *devname, rc);
goto compose_mount_options_err;
@@ -150,8 +150,7 @@ char *cifs_compose_mount_options(const char *sb_mountdata,
* assuming that we have 'unc=' and 'ip=' in
* the original sb_mountdata
*/
- md_len = strlen(sb_mountdata) + strlen(srvIP) +
- strlen(ref->node_name) + 12;
+ md_len = strlen(sb_mountdata) + rc + strlen(ref->node_name) + 12;
mountdata = kzalloc(md_len+1, GFP_KERNEL);
if (mountdata == NULL) {
rc = -ENOMEM;
@@ -230,28 +229,22 @@ compose_mount_options_err:
goto compose_mount_options_out;
}
-
-static struct vfsmount *cifs_dfs_do_refmount(const struct vfsmount *mnt_parent,
- struct dentry *dentry, const struct dfs_info3_param *ref)
+/**
+ * cifs_dfs_do_refmount - mounts specified path using provided refferal
+ * @cifs_sb: parent/root superblock
+ * @fullpath: full path in UNC format
+ * @ref: server's referral
+ */
+static struct vfsmount *cifs_dfs_do_refmount(struct cifs_sb_info *cifs_sb,
+ const char *fullpath, const struct dfs_info3_param *ref)
{
- struct cifs_sb_info *cifs_sb;
struct vfsmount *mnt;
char *mountdata;
char *devname = NULL;
- char *fullpath;
-
- cifs_sb = CIFS_SB(dentry->d_inode->i_sb);
- /*
- * this function gives us a path with a double backslash prefix. We
- * require a single backslash for DFS.
- */
- fullpath = build_path_from_dentry(dentry);
- if (!fullpath)
- return ERR_PTR(-ENOMEM);
+ /* strip first '\' from fullpath */
mountdata = cifs_compose_mount_options(cifs_sb->mountdata,
fullpath + 1, ref, &devname);
- kfree(fullpath);
if (IS_ERR(mountdata))
return (struct vfsmount *)mountdata;
@@ -357,8 +350,8 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
rc = -EINVAL;
goto out_err;
}
- mnt = cifs_dfs_do_refmount(nd->path.mnt,
- nd->path.dentry, referrals + i);
+ mnt = cifs_dfs_do_refmount(cifs_sb,
+ full_path, referrals + i);
cFYI(1, "%s: cifs_dfs_do_refmount:%s , mnt:%p", __func__,
referrals[i].node_name, mnt);
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index 246a167..9e77145 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -35,6 +35,7 @@
#define CIFS_MOUNT_DYNPERM 0x1000 /* allow in-memory only mode setting */
#define CIFS_MOUNT_NOPOSIXBRL 0x2000 /* mandatory not posix byte range lock */
#define CIFS_MOUNT_NOSSYNC 0x4000 /* don't do slow SMBflush on every sync*/
+#define CIFS_MOUNT_FSCACHE 0x8000 /* local caching enabled */
struct cifs_sb_info {
struct cifsTconInfo *tcon; /* primary mount */
diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
index 379bd7d..8704490 100644
--- a/fs/cifs/cifs_spnego.c
+++ b/fs/cifs/cifs_spnego.c
@@ -84,6 +84,9 @@ struct key_type cifs_spnego_key_type = {
/* strlen of ";uid=0x" */
#define UID_KEY_LEN 7
+/* strlen of ";creduid=0x" */
+#define CREDUID_KEY_LEN 11
+
/* strlen of ";user=" */
#define USER_KEY_LEN 6
@@ -107,6 +110,7 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
IP_KEY_LEN + INET6_ADDRSTRLEN +
MAX_MECH_STR_LEN +
UID_KEY_LEN + (sizeof(uid_t) * 2) +
+ CREDUID_KEY_LEN + (sizeof(uid_t) * 2) +
USER_KEY_LEN + strlen(sesInfo->userName) +
PID_KEY_LEN + (sizeof(pid_t) * 2) + 1;
@@ -144,6 +148,9 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
sprintf(dp, ";uid=0x%x", sesInfo->linux_uid);
dp = description + strlen(description);
+ sprintf(dp, ";creduid=0x%x", sesInfo->cred_uid);
+
+ dp = description + strlen(description);
sprintf(dp, ";user=%s", sesInfo->userName);
dp = description + strlen(description);
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 484e52b..a5ed10c 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -45,8 +45,8 @@
#include "cifs_fs_sb.h"
#include <linux/mm.h>
#include <linux/key-type.h>
-#include "dns_resolve.h"
#include "cifs_spnego.h"
+#include "fscache.h"
#define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */
int cifsFYI = 0;
@@ -329,6 +329,12 @@ cifs_destroy_inode(struct inode *inode)
}
static void
+cifs_clear_inode(struct inode *inode)
+{
+ cifs_fscache_release_inode_cookie(inode);
+}
+
+static void
cifs_show_address(struct seq_file *s, struct TCP_Server_Info *server)
{
seq_printf(s, ",addr=");
@@ -489,6 +495,7 @@ static const struct super_operations cifs_super_ops = {
.alloc_inode = cifs_alloc_inode,
.destroy_inode = cifs_destroy_inode,
.drop_inode = cifs_drop_inode,
+ .clear_inode = cifs_clear_inode,
/* .delete_inode = cifs_delete_inode, */ /* Do not need above
function unless later we add lazy close of inodes or unless the
kernel forgets to call us with the same number of releases (closes)
@@ -902,6 +909,10 @@ init_cifs(void)
cFYI(1, "cifs_max_pending set to max of 256");
}
+ rc = cifs_fscache_register();
+ if (rc)
+ goto out;
+
rc = cifs_init_inodecache();
if (rc)
goto out_clean_proc;
@@ -922,27 +933,13 @@ init_cifs(void)
if (rc)
goto out_unregister_filesystem;
#endif
-#ifdef CONFIG_CIFS_DFS_UPCALL
- rc = register_key_type(&key_type_dns_resolver);
- if (rc)
- goto out_unregister_key_type;
-#endif
- rc = slow_work_register_user(THIS_MODULE);
- if (rc)
- goto out_unregister_resolver_key;
return 0;
- out_unregister_resolver_key:
-#ifdef CONFIG_CIFS_DFS_UPCALL
- unregister_key_type(&key_type_dns_resolver);
- out_unregister_key_type:
-#endif
#ifdef CONFIG_CIFS_UPCALL
- unregister_key_type(&cifs_spnego_key_type);
out_unregister_filesystem:
-#endif
unregister_filesystem(&cifs_fs_type);
+#endif
out_destroy_request_bufs:
cifs_destroy_request_bufs();
out_destroy_mids:
@@ -951,6 +948,8 @@ init_cifs(void)
cifs_destroy_inodecache();
out_clean_proc:
cifs_proc_clean();
+ cifs_fscache_unregister();
+ out:
return rc;
}
@@ -959,9 +958,9 @@ exit_cifs(void)
{
cFYI(DBG2, "exit_cifs");
cifs_proc_clean();
+ cifs_fscache_unregister();
#ifdef CONFIG_CIFS_DFS_UPCALL
cifs_dfs_release_automount_timer();
- unregister_key_type(&key_type_dns_resolver);
#endif
#ifdef CONFIG_CIFS_UPCALL
unregister_key_type(&cifs_spnego_key_type);
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index a7eb65c..d82f5fb 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -114,5 +114,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
extern const struct export_operations cifs_export_ops;
#endif /* EXPERIMENTAL */
-#define CIFS_VERSION "1.64"
+#define CIFS_VERSION "1.65"
#endif /* _CIFSFS_H */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index a88479c..0cdfb8c 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -16,10 +16,13 @@
* the GNU Lesser General Public License for more details.
*
*/
+#ifndef _CIFS_GLOB_H
+#define _CIFS_GLOB_H
+
#include <linux/in.h>
#include <linux/in6.h>
#include <linux/slab.h>
-#include <linux/slow-work.h>
+#include <linux/workqueue.h>
#include "cifs_fs_sb.h"
#include "cifsacl.h"
/*
@@ -34,7 +37,7 @@
#define MAX_SHARE_SIZE 64 /* used to be 20, this should still be enough */
#define MAX_USERNAME_SIZE 32 /* 32 is to allow for 15 char names + null
termination then *2 for unicode versions */
-#define MAX_PASSWORD_SIZE 16
+#define MAX_PASSWORD_SIZE 512 /* max for windows seems to be 256 wide chars */
#define CIFS_MIN_RCV_POOL 4
@@ -80,8 +83,7 @@ enum statusEnum {
};
enum securityEnum {
- PLAINTXT = 0, /* Legacy with Plaintext passwords */
- LANMAN, /* Legacy LANMAN auth */
+ LANMAN = 0, /* Legacy LANMAN auth */
NTLM, /* Legacy NTLM012 auth with NTLM hash */
NTLMv2, /* Legacy NTLM auth with NTLMv2 hash */
RawNTLMSSP, /* NTLMSSP without SPNEGO, NTLMv2 hash */
@@ -142,7 +144,6 @@ struct TCP_Server_Info {
struct list_head pending_mid_q;
void *Server_NlsInfo; /* BB - placeholder for future NLS info */
unsigned short server_codepage; /* codepage for the server */
- unsigned long ip_address; /* IP addr for the server if known */
enum protocolEnum protocolType;
char versionMajor;
char versionMinor;
@@ -190,19 +191,9 @@ struct TCP_Server_Info {
bool sec_mskerberos; /* supports legacy MS Kerberos */
bool sec_kerberosu2u; /* supports U2U Kerberos */
bool sec_ntlmssp; /* supports NTLMSSP */
-};
-
-/*
- * The following is our shortcut to user information. We surface the uid,
- * and name. We always get the password on the fly in case it
- * has changed. We also hang a list of sessions owned by this user off here.
- */
-struct cifsUidInfo {
- struct list_head userList;
- struct list_head sessionList; /* SMB sessions for this user */
- uid_t linux_uid;
- char user[MAX_USERNAME_SIZE + 1]; /* ascii name of user */
- /* BB may need ptr or callback for PAM or WinBind info */
+#ifdef CONFIG_CIFS_FSCACHE
+ struct fscache_cookie *fscache; /* client index cache cookie */
+#endif
};
/*
@@ -212,9 +203,6 @@ struct cifsSesInfo {
struct list_head smb_ses_list;
struct list_head tcon_list;
struct mutex session_mutex;
-#if 0
- struct cifsUidInfo *uidInfo; /* pointer to user info */
-#endif
struct TCP_Server_Info *server; /* pointer to server info */
int ses_count; /* reference counter */
enum statusEnum status;
@@ -226,7 +214,8 @@ struct cifsSesInfo {
char *serverNOS; /* name of network operating system of server */
char *serverDomain; /* security realm of server */
int Suid; /* remote smb uid */
- uid_t linux_uid; /* local Linux uid */
+ uid_t linux_uid; /* overriding owner of files on the mount */
+ uid_t cred_uid; /* owner of credentials */
int capabilities;
char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for
TCP names - will ipv6 and sctp addresses fit? */
@@ -311,6 +300,10 @@ struct cifsTconInfo {
bool local_lease:1; /* check leases (only) on local system not remote */
bool broken_posix_open; /* e.g. Samba server versions < 3.3.2, 3.2.9 */
bool need_reconnect:1; /* connection reset, tid now invalid */
+#ifdef CONFIG_CIFS_FSCACHE
+ u64 resource_id; /* server resource id */
+ struct fscache_cookie *fscache; /* cookie for share */
+#endif
/* BB add field for back pointer to sb struct(s)? */
};
@@ -363,7 +356,7 @@ struct cifsFileInfo {
atomic_t count; /* reference count */
struct mutex fh_mutex; /* prevents reopen race after dead ses*/
struct cifs_search_info srch_inf;
- struct slow_work oplock_break; /* slow_work job for oplock breaks */
+ struct work_struct oplock_break; /* work for oplock breaks */
};
/* Take a reference on the file private data */
@@ -398,6 +391,9 @@ struct cifsInodeInfo {
bool invalid_mapping:1; /* pagecache is invalid */
u64 server_eof; /* current file size on server */
u64 uniqueid; /* server inode number */
+#ifdef CONFIG_CIFS_FSCACHE
+ struct fscache_cookie *fscache;
+#endif
struct inode vfs_inode;
};
@@ -732,4 +728,10 @@ GLOBAL_EXTERN unsigned int cifs_min_rcv; /* min size of big ntwrk buf pool */
GLOBAL_EXTERN unsigned int cifs_min_small; /* min size of small buf pool */
GLOBAL_EXTERN unsigned int cifs_max_pending; /* MAX requests at once to server*/
+void cifs_oplock_break(struct work_struct *work);
+void cifs_oplock_break_get(struct cifsFileInfo *cfile);
+void cifs_oplock_break_put(struct cifsFileInfo *cfile);
+
extern const struct slow_work_ops cifs_oplock_break_ops;
+
+#endif /* _CIFS_GLOB_H */
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index fb6318b..1f54508 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -86,7 +86,9 @@ extern unsigned int smbCalcSize(struct smb_hdr *ptr);
extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
extern int decode_negTokenInit(unsigned char *security_blob, int length,
struct TCP_Server_Info *server);
-extern int cifs_convert_address(char *src, void *dst);
+extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
+extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
+ unsigned short int port);
extern int map_smb_to_linux_error(struct smb_hdr *smb, int logErr);
extern void header_assemble(struct smb_hdr *, char /* command */ ,
const struct cifsTconInfo *, int /* length of
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 2208f06..95c2ea6 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -48,6 +48,7 @@
#include "nterr.h"
#include "rfc1002pdu.h"
#include "cn_cifs.h"
+#include "fscache.h"
#define CIFS_PORT 445
#define RFC1001_PORT 139
@@ -66,6 +67,7 @@ struct smb_vol {
char *iocharset; /* local code page for mapping to and from Unicode */
char source_rfc1001_name[16]; /* netbios name of client */
char target_rfc1001_name[16]; /* netbios name of server for Win9x/ME */
+ uid_t cred_uid;
uid_t linux_uid;
gid_t linux_gid;
mode_t file_mode;
@@ -97,6 +99,7 @@ struct smb_vol {
bool noblocksnd:1;
bool noautotune:1;
bool nostrictsync:1; /* do not force expensive SMBflush on every sync */
+ bool fsc:1; /* enable fscache */
unsigned int rsize;
unsigned int wsize;
bool sockopt_tcp_nodelay:1;
@@ -830,7 +833,8 @@ cifs_parse_mount_options(char *options, const char *devname,
/* null target name indicates to use *SMBSERVR default called name
if we end up sending RFC1001 session initialize */
vol->target_rfc1001_name[0] = 0;
- vol->linux_uid = current_uid(); /* use current_euid() instead? */
+ vol->cred_uid = current_uid();
+ vol->linux_uid = current_uid();
vol->linux_gid = current_gid();
/* default to only allowing write access to owner of the mount */
@@ -1257,6 +1261,12 @@ cifs_parse_mount_options(char *options, const char *devname,
} else if ((strnicmp(data, "nocase", 6) == 0) ||
(strnicmp(data, "ignorecase", 10) == 0)) {
vol->nocase = 1;
+ } else if (strnicmp(data, "mand", 4) == 0) {
+ /* ignore */
+ } else if (strnicmp(data, "nomand", 6) == 0) {
+ /* ignore */
+ } else if (strnicmp(data, "_netdev", 7) == 0) {
+ /* ignore */
} else if (strnicmp(data, "brl", 3) == 0) {
vol->nobrl = 0;
} else if ((strnicmp(data, "nobrl", 5) == 0) ||
@@ -1331,6 +1341,8 @@ cifs_parse_mount_options(char *options, const char *devname,
printk(KERN_WARNING "CIFS: Mount option noac not "
"supported. Instead set "
"/proc/fs/cifs/LookupCacheEnabled to 0\n");
+ } else if (strnicmp(data, "fsc", 3) == 0) {
+ vol->fsc = true;
} else
printk(KERN_WARNING "CIFS: Unknown mount option %s\n",
data);
@@ -1380,18 +1392,92 @@ cifs_parse_mount_options(char *options, const char *devname,
return 0;
}
+static bool
+match_address(struct TCP_Server_Info *server, struct sockaddr *addr)
+{
+ struct sockaddr_in *addr4 = (struct sockaddr_in *)addr;
+ struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)addr;
+
+ switch (addr->sa_family) {
+ case AF_INET:
+ if (addr4->sin_addr.s_addr !=
+ server->addr.sockAddr.sin_addr.s_addr)
+ return false;
+ if (addr4->sin_port &&
+ addr4->sin_port != server->addr.sockAddr.sin_port)
+ return false;
+ break;
+ case AF_INET6:
+ if (!ipv6_addr_equal(&addr6->sin6_addr,
+ &server->addr.sockAddr6.sin6_addr))
+ return false;
+ if (addr6->sin6_scope_id !=
+ server->addr.sockAddr6.sin6_scope_id)
+ return false;
+ if (addr6->sin6_port &&
+ addr6->sin6_port != server->addr.sockAddr6.sin6_port)
+ return false;
+ break;
+ }
+
+ return true;
+}
+
+static bool
+match_security(struct TCP_Server_Info *server, struct smb_vol *vol)
+{
+ unsigned int secFlags;
+
+ if (vol->secFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL)))
+ secFlags = vol->secFlg;
+ else
+ secFlags = global_secflags | vol->secFlg;
+
+ switch (server->secType) {
+ case LANMAN:
+ if (!(secFlags & (CIFSSEC_MAY_LANMAN|CIFSSEC_MAY_PLNTXT)))
+ return false;
+ break;
+ case NTLMv2:
+ if (!(secFlags & CIFSSEC_MAY_NTLMV2))
+ return false;
+ break;
+ case NTLM:
+ if (!(secFlags & CIFSSEC_MAY_NTLM))
+ return false;
+ break;
+ case Kerberos:
+ if (!(secFlags & CIFSSEC_MAY_KRB5))
+ return false;
+ break;
+ case RawNTLMSSP:
+ if (!(secFlags & CIFSSEC_MAY_NTLMSSP))
+ return false;
+ break;
+ default:
+ /* shouldn't happen */
+ return false;
+ }
+
+ /* now check if signing mode is acceptible */
+ if ((secFlags & CIFSSEC_MAY_SIGN) == 0 &&
+ (server->secMode & SECMODE_SIGN_REQUIRED))
+ return false;
+ else if (((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) &&
+ (server->secMode &
+ (SECMODE_SIGN_ENABLED|SECMODE_SIGN_REQUIRED)) == 0)
+ return false;
+
+ return true;
+}
+
static struct TCP_Server_Info *
-cifs_find_tcp_session(struct sockaddr_storage *addr, unsigned short int port)
+cifs_find_tcp_session(struct sockaddr *addr, struct smb_vol *vol)
{
- struct list_head *tmp;
struct TCP_Server_Info *server;
- struct sockaddr_in *addr4 = (struct sockaddr_in *) addr;
- struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) addr;
write_lock(&cifs_tcp_ses_lock);
- list_for_each(tmp, &cifs_tcp_ses_list) {
- server = list_entry(tmp, struct TCP_Server_Info,
- tcp_ses_list);
+ list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) {
/*
* the demux thread can exit on its own while still in CifsNew
* so don't accept any sockets in that state. Since the
@@ -1401,37 +1487,11 @@ cifs_find_tcp_session(struct sockaddr_storage *addr, unsigned short int port)
if (server->tcpStatus == CifsNew)
continue;
- switch (addr->ss_family) {
- case AF_INET:
- if (addr4->sin_addr.s_addr ==
- server->addr.sockAddr.sin_addr.s_addr) {
- addr4->sin_port = htons(port);
- /* user overrode default port? */
- if (addr4->sin_port) {
- if (addr4->sin_port !=
- server->addr.sockAddr.sin_port)
- continue;
- }
- break;
- } else
- continue;
+ if (!match_address(server, addr))
+ continue;
- case AF_INET6:
- if (ipv6_addr_equal(&addr6->sin6_addr,
- &server->addr.sockAddr6.sin6_addr) &&
- (addr6->sin6_scope_id ==
- server->addr.sockAddr6.sin6_scope_id)) {
- addr6->sin6_port = htons(port);
- /* user overrode default port? */
- if (addr6->sin6_port) {
- if (addr6->sin6_port !=
- server->addr.sockAddr6.sin6_port)
- continue;
- }
- break;
- } else
- continue;
- }
+ if (!match_security(server, vol))
+ continue;
++server->srv_count;
write_unlock(&cifs_tcp_ses_lock);
@@ -1460,6 +1520,8 @@ cifs_put_tcp_session(struct TCP_Server_Info *server)
server->tcpStatus = CifsExiting;
spin_unlock(&GlobalMid_Lock);
+ cifs_fscache_release_client_cookie(server);
+
task = xchg(&server->tsk, NULL);
if (task)
force_sig(SIGKILL, task);
@@ -1479,7 +1541,10 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
cFYI(1, "UNC: %s ip: %s", volume_info->UNC, volume_info->UNCip);
if (volume_info->UNCip && volume_info->UNC) {
- rc = cifs_convert_address(volume_info->UNCip, &addr);
+ rc = cifs_fill_sockaddr((struct sockaddr *)&addr,
+ volume_info->UNCip,
+ strlen(volume_info->UNCip),
+ volume_info->port);
if (!rc) {
/* we failed translating address */
rc = -EINVAL;
@@ -1499,7 +1564,7 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
}
/* see if we already have a matching tcp_ses */
- tcp_ses = cifs_find_tcp_session(&addr, volume_info->port);
+ tcp_ses = cifs_find_tcp_session((struct sockaddr *)&addr, volume_info);
if (tcp_ses)
return tcp_ses;
@@ -1543,12 +1608,10 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
cFYI(1, "attempting ipv6 connect");
/* BB should we allow ipv6 on port 139? */
/* other OS never observed in Wild doing 139 with v6 */
- sin_server6->sin6_port = htons(volume_info->port);
memcpy(&tcp_ses->addr.sockAddr6, sin_server6,
sizeof(struct sockaddr_in6));
rc = ipv6_connect(tcp_ses);
} else {
- sin_server->sin_port = htons(volume_info->port);
memcpy(&tcp_ses->addr.sockAddr, sin_server,
sizeof(struct sockaddr_in));
rc = ipv4_connect(tcp_ses);
@@ -1577,6 +1640,8 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
list_add(&tcp_ses->tcp_ses_list, &cifs_tcp_ses_list);
write_unlock(&cifs_tcp_ses_lock);
+ cifs_fscache_get_client_cookie(tcp_ses);
+
return tcp_ses;
out_err:
@@ -1591,17 +1656,27 @@ out_err:
}
static struct cifsSesInfo *
-cifs_find_smb_ses(struct TCP_Server_Info *server, char *username)
+cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol)
{
- struct list_head *tmp;
struct cifsSesInfo *ses;
write_lock(&cifs_tcp_ses_lock);
- list_for_each(tmp, &server->smb_ses_list) {
- ses = list_entry(tmp, struct cifsSesInfo, smb_ses_list);
- if (strncmp(ses->userName, username, MAX_USERNAME_SIZE))
- continue;
-
+ list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
+ switch (server->secType) {
+ case Kerberos:
+ if (vol->cred_uid != ses->cred_uid)
+ continue;
+ break;
+ default:
+ /* anything else takes username/password */
+ if (strncmp(ses->userName, vol->username,
+ MAX_USERNAME_SIZE))
+ continue;
+ if (strlen(vol->username) != 0 &&
+ strncmp(ses->password, vol->password,
+ MAX_PASSWORD_SIZE))
+ continue;
+ }
++ses->ses_count;
write_unlock(&cifs_tcp_ses_lock);
return ses;
@@ -1643,7 +1718,7 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
xid = GetXid();
- ses = cifs_find_smb_ses(server, volume_info->username);
+ ses = cifs_find_smb_ses(server, volume_info);
if (ses) {
cFYI(1, "Existing smb sess found (status=%d)", ses->status);
@@ -1706,6 +1781,7 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
if (ses->domainName)
strcpy(ses->domainName, volume_info->domainname);
}
+ ses->cred_uid = volume_info->cred_uid;
ses->linux_uid = volume_info->linux_uid;
ses->overrideSecFlg = volume_info->secFlg;
@@ -1773,6 +1849,7 @@ cifs_put_tcon(struct cifsTconInfo *tcon)
CIFSSMBTDis(xid, tcon);
_FreeXid(xid);
+ cifs_fscache_release_super_cookie(tcon);
tconInfoFree(tcon);
cifs_put_smb_ses(ses);
}
@@ -1843,6 +1920,8 @@ cifs_get_tcon(struct cifsSesInfo *ses, struct smb_vol *volume_info)
list_add(&tcon->tcon_list, &ses->tcon_list);
write_unlock(&cifs_tcp_ses_lock);
+ cifs_fscache_get_super_cookie(tcon);
+
return tcon;
out_fail:
@@ -2397,6 +2476,8 @@ static void setup_cifs_sb(struct smb_vol *pvolume_info,
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_GID;
if (pvolume_info->dynperm)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DYNPERM;
+ if (pvolume_info->fsc)
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_FSCACHE;
if (pvolume_info->direct_io) {
cFYI(1, "mounting share using direct i/o");
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index e7ae78b..578d88c 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -130,12 +130,6 @@ cifs_bp_rename_retry:
return full_path;
}
-/*
- * When called with struct file pointer set to NULL, there is no way we could
- * update file->private_data, but getting it stuck on openFileList provides a
- * way to access it from cifs_fill_filedata and thereby set file->private_data
- * from cifs_open.
- */
struct cifsFileInfo *
cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle,
struct file *file, struct vfsmount *mnt, unsigned int oflags)
@@ -163,7 +157,7 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle,
mutex_init(&pCifsFile->lock_mutex);
INIT_LIST_HEAD(&pCifsFile->llist);
atomic_set(&pCifsFile->count, 1);
- slow_work_init(&pCifsFile->oplock_break, &cifs_oplock_break_ops);
+ INIT_WORK(&pCifsFile->oplock_break, cifs_oplock_break);
write_lock(&GlobalSMBSeslock);
list_add(&pCifsFile->tlist, &cifs_sb->tcon->openFileList);
diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c
index 4db2c5e..0eb8702 100644
--- a/fs/cifs/dns_resolve.c
+++ b/fs/cifs/dns_resolve.c
@@ -4,6 +4,8 @@
* Copyright (c) 2007 Igor Mammedov
* Author(s): Igor Mammedov (niallain@gmail.com)
* Steve French (sfrench@us.ibm.com)
+ * Wang Lei (wang840925@gmail.com)
+ * David Howells (dhowells@redhat.com)
*
* Contains the CIFS DFS upcall routines used for hostname to
* IP address translation.
@@ -24,145 +26,73 @@
*/
#include <linux/slab.h>
-#include <keys/user-type.h>
+#include <linux/dns_resolver.h>
#include "dns_resolve.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
-/* Checks if supplied name is IP address
- * returns:
- * 1 - name is IP
- * 0 - name is not IP
- */
-static int
-is_ip(char *name)
-{
- struct sockaddr_storage ss;
-
- return cifs_convert_address(name, &ss);
-}
-
-static int
-dns_resolver_instantiate(struct key *key, const void *data,
- size_t datalen)
-{
- int rc = 0;
- char *ip;
-
- ip = kmalloc(datalen + 1, GFP_KERNEL);
- if (!ip)
- return -ENOMEM;
-
- memcpy(ip, data, datalen);
- ip[datalen] = '\0';
-
- /* make sure this looks like an address */
- if (!is_ip(ip)) {
- kfree(ip);
- return -EINVAL;
- }
-
- key->type_data.x[0] = datalen;
- key->payload.data = ip;
-
- return rc;
-}
-
-static void
-dns_resolver_destroy(struct key *key)
-{
- kfree(key->payload.data);
-}
-
-struct key_type key_type_dns_resolver = {
- .name = "dns_resolver",
- .def_datalen = sizeof(struct in_addr),
- .describe = user_describe,
- .instantiate = dns_resolver_instantiate,
- .destroy = dns_resolver_destroy,
- .match = user_match,
-};
-
-/* Resolves server name to ip address.
- * input:
- * unc - server UNC
- * output:
- * *ip_addr - pointer to server ip, caller responcible for freeing it.
- * return 0 on success
+/**
+ * dns_resolve_server_name_to_ip - Resolve UNC server name to ip address.
+ * @unc: UNC path specifying the server
+ * @ip_addr: Where to return the IP address.
+ *
+ * The IP address will be returned in string form, and the caller is
+ * responsible for freeing it.
+ *
+ * Returns length of result on success, -ve on error.
*/
int
dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
{
- int rc = -EAGAIN;
- struct key *rkey = ERR_PTR(-EAGAIN);
+ struct sockaddr_storage ss;
+ const char *hostname, *sep;
char *name;
- char *data = NULL;
- int len;
+ int len, rc;
if (!ip_addr || !unc)
return -EINVAL;
- /* search for server name delimiter */
len = strlen(unc);
if (len < 3) {
cFYI(1, "%s: unc is too short: %s", __func__, unc);
return -EINVAL;
}
+
+ /* Discount leading slashes for cifs */
len -= 2;
- name = memchr(unc+2, '\\', len);
- if (!name) {
+ hostname = unc + 2;
+
+ /* Search for server name delimiter */
+ sep = memchr(hostname, '\\', len);
+ if (sep)
+ len = sep - unc;
+ else
cFYI(1, "%s: probably server name is whole unc: %s",
- __func__, unc);
- } else {
- len = (name - unc) - 2/* leading // */;
- }
+ __func__, unc);
+
+ /* Try to interpret hostname as an IPv4 or IPv6 address */
+ rc = cifs_convert_address((struct sockaddr *)&ss, hostname, len);
+ if (rc > 0)
+ goto name_is_IP_address;
+
+ /* Perform the upcall */
+ rc = dns_query(NULL, hostname, len, NULL, ip_addr, NULL);
+ if (rc < 0)
+ cERROR(1, "%s: unable to resolve: %*.*s",
+ __func__, len, len, hostname);
+ else
+ cFYI(1, "%s: resolved: %*.*s to %s",
+ __func__, len, len, hostname, *ip_addr);
+ return rc;
- name = kmalloc(len+1, GFP_KERNEL);
- if (!name) {
- rc = -ENOMEM;
- return rc;
- }
- memcpy(name, unc+2, len);
+name_is_IP_address:
+ name = kmalloc(len + 1, GFP_KERNEL);
+ if (!name)
+ return -ENOMEM;
+ memcpy(name, hostname, len);
name[len] = 0;
-
- if (is_ip(name)) {
- cFYI(1, "%s: it is IP, skipping dns upcall: %s",
- __func__, name);
- data = name;
- goto skip_upcall;
- }
-
- rkey = request_key(&key_type_dns_resolver, name, "");
- if (!IS_ERR(rkey)) {
- len = rkey->type_data.x[0];
- data = rkey->payload.data;
- } else {
- cERROR(1, "%s: unable to resolve: %s", __func__, name);
- goto out;
- }
-
-skip_upcall:
- if (data) {
- *ip_addr = kmalloc(len + 1, GFP_KERNEL);
- if (*ip_addr) {
- memcpy(*ip_addr, data, len + 1);
- if (!IS_ERR(rkey))
- cFYI(1, "%s: resolved: %s to %s", __func__,
- name,
- *ip_addr
- );
- rc = 0;
- } else {
- rc = -ENOMEM;
- }
- if (!IS_ERR(rkey))
- key_put(rkey);
- }
-
-out:
- kfree(name);
- return rc;
+ cFYI(1, "%s: unc is IP, skipping dns upcall: %s", __func__, name);
+ *ip_addr = name;
+ return 0;
}
-
-
diff --git a/fs/cifs/dns_resolve.h b/fs/cifs/dns_resolve.h
index 966e928..d3f5d27 100644
--- a/fs/cifs/dns_resolve.h
+++ b/fs/cifs/dns_resolve.h
@@ -24,8 +24,6 @@
#define _DNS_RESOLVE_H
#ifdef __KERNEL__
-#include <linux/key-type.h>
-extern struct key_type key_type_dns_resolver;
extern int dns_resolve_server_name_to_ip(const char *unc, char **ip_addr);
#endif /* KERNEL */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 409e4f5..db11fde 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -40,6 +40,7 @@
#include "cifs_unicode.h"
#include "cifs_debug.h"
#include "cifs_fs_sb.h"
+#include "fscache.h"
static inline int cifs_convert_flags(unsigned int flags)
{
@@ -282,6 +283,9 @@ int cifs_open(struct inode *inode, struct file *file)
CIFSSMBClose(xid, tcon, netfid);
rc = -ENOMEM;
}
+
+ cifs_fscache_set_inode_cookie(inode, file);
+
goto out;
} else if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
if (tcon->ses->serverNOS)
@@ -373,6 +377,8 @@ int cifs_open(struct inode *inode, struct file *file)
goto out;
}
+ cifs_fscache_set_inode_cookie(inode, file);
+
if (oplock & CIFS_CREATE_ACTION) {
/* time to set mode which we can not set earlier due to
problems creating new read-only files */
@@ -427,7 +433,7 @@ static int cifs_reopen_file(struct file *file, bool can_flush)
__u16 netfid;
if (file->private_data)
- pCifsFile = (struct cifsFileInfo *)file->private_data;
+ pCifsFile = file->private_data;
else
return -EBADF;
@@ -565,8 +571,7 @@ int cifs_close(struct inode *inode, struct file *file)
int xid, timeout;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
- struct cifsFileInfo *pSMBFile =
- (struct cifsFileInfo *)file->private_data;
+ struct cifsFileInfo *pSMBFile = file->private_data;
xid = GetXid();
@@ -641,8 +646,7 @@ int cifs_closedir(struct inode *inode, struct file *file)
{
int rc = 0;
int xid;
- struct cifsFileInfo *pCFileStruct =
- (struct cifsFileInfo *)file->private_data;
+ struct cifsFileInfo *pCFileStruct = file->private_data;
char *ptmp;
cFYI(1, "Closedir inode = 0x%p", inode);
@@ -863,8 +867,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock)
length, pfLock,
posix_lock_type, wait_flag);
} else {
- struct cifsFileInfo *fid =
- (struct cifsFileInfo *)file->private_data;
+ struct cifsFileInfo *fid = file->private_data;
if (numLock) {
rc = CIFSSMBLock(xid, tcon, netfid, length,
@@ -965,7 +968,7 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data,
if (file->private_data == NULL)
return -EBADF;
- open_file = (struct cifsFileInfo *) file->private_data;
+ open_file = file->private_data;
rc = generic_write_checks(file, poffset, &write_size, 0);
if (rc)
@@ -1067,7 +1070,7 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
if (file->private_data == NULL)
return -EBADF;
- open_file = (struct cifsFileInfo *)file->private_data;
+ open_file = file->private_data;
xid = GetXid();
@@ -1651,8 +1654,7 @@ int cifs_fsync(struct file *file, int datasync)
int xid;
int rc = 0;
struct cifsTconInfo *tcon;
- struct cifsFileInfo *smbfile =
- (struct cifsFileInfo *)file->private_data;
+ struct cifsFileInfo *smbfile = file->private_data;
struct inode *inode = file->f_path.dentry->d_inode;
xid = GetXid();
@@ -1756,7 +1758,7 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data,
FreeXid(xid);
return rc;
}
- open_file = (struct cifsFileInfo *)file->private_data;
+ open_file = file->private_data;
if ((file->f_flags & O_ACCMODE) == O_WRONLY)
cFYI(1, "attempting read on write only file instance");
@@ -1837,7 +1839,7 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
FreeXid(xid);
return rc;
}
- open_file = (struct cifsFileInfo *)file->private_data;
+ open_file = file->private_data;
if ((file->f_flags & O_ACCMODE) == O_WRONLY)
cFYI(1, "attempting read on write only file instance");
@@ -1942,6 +1944,9 @@ static void cifs_copy_cache_pages(struct address_space *mapping,
SetPageUptodate(page);
unlock_page(page);
data += PAGE_CACHE_SIZE;
+
+ /* add page to FS-Cache */
+ cifs_readpage_to_fscache(mapping->host, page);
}
return;
}
@@ -1968,10 +1973,19 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
FreeXid(xid);
return rc;
}
- open_file = (struct cifsFileInfo *)file->private_data;
+ open_file = file->private_data;
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
pTcon = cifs_sb->tcon;
+ /*
+ * Reads as many pages as possible from fscache. Returns -ENOBUFS
+ * immediately if the cookie is negative
+ */
+ rc = cifs_readpages_from_fscache(mapping->host, mapping, page_list,
+ &num_pages);
+ if (rc == 0)
+ goto read_complete;
+
cFYI(DBG2, "rpages: num pages %d", num_pages);
for (i = 0; i < num_pages; ) {
unsigned contig_pages;
@@ -2082,6 +2096,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
smb_read_data = NULL;
}
+read_complete:
FreeXid(xid);
return rc;
}
@@ -2092,6 +2107,11 @@ static int cifs_readpage_worker(struct file *file, struct page *page,
char *read_data;
int rc;
+ /* Is the page cached? */
+ rc = cifs_readpage_from_fscache(file->f_path.dentry->d_inode, page);
+ if (rc == 0)
+ goto read_complete;
+
page_cache_get(page);
read_data = kmap(page);
/* for reads over a certain size could initiate async read ahead */
@@ -2111,11 +2131,17 @@ static int cifs_readpage_worker(struct file *file, struct page *page,
flush_dcache_page(page);
SetPageUptodate(page);
+
+ /* send this page to the cache */
+ cifs_readpage_to_fscache(file->f_path.dentry->d_inode, page);
+
rc = 0;
io_error:
kunmap(page);
page_cache_release(page);
+
+read_complete:
return rc;
}
@@ -2265,8 +2291,23 @@ out:
return rc;
}
-static void
-cifs_oplock_break(struct slow_work *work)
+static int cifs_release_page(struct page *page, gfp_t gfp)
+{
+ if (PagePrivate(page))
+ return 0;
+
+ return cifs_fscache_release_page(page, gfp);
+}
+
+static void cifs_invalidate_page(struct page *page, unsigned long offset)
+{
+ struct cifsInodeInfo *cifsi = CIFS_I(page->mapping->host);
+
+ if (offset == 0)
+ cifs_fscache_invalidate_page(page, &cifsi->vfs_inode);
+}
+
+void cifs_oplock_break(struct work_struct *work)
{
struct cifsFileInfo *cfile = container_of(work, struct cifsFileInfo,
oplock_break);
@@ -2303,33 +2344,30 @@ cifs_oplock_break(struct slow_work *work)
LOCKING_ANDX_OPLOCK_RELEASE, false);
cFYI(1, "Oplock release rc = %d", rc);
}
+
+ /*
+ * We might have kicked in before is_valid_oplock_break()
+ * finished grabbing reference for us. Make sure it's done by
+ * waiting for GlobalSMSSeslock.
+ */
+ write_lock(&GlobalSMBSeslock);
+ write_unlock(&GlobalSMBSeslock);
+
+ cifs_oplock_break_put(cfile);
}
-static int
-cifs_oplock_break_get(struct slow_work *work)
+void cifs_oplock_break_get(struct cifsFileInfo *cfile)
{
- struct cifsFileInfo *cfile = container_of(work, struct cifsFileInfo,
- oplock_break);
mntget(cfile->mnt);
cifsFileInfo_get(cfile);
- return 0;
}
-static void
-cifs_oplock_break_put(struct slow_work *work)
+void cifs_oplock_break_put(struct cifsFileInfo *cfile)
{
- struct cifsFileInfo *cfile = container_of(work, struct cifsFileInfo,
- oplock_break);
mntput(cfile->mnt);
cifsFileInfo_put(cfile);
}
-const struct slow_work_ops cifs_oplock_break_ops = {
- .get_ref = cifs_oplock_break_get,
- .put_ref = cifs_oplock_break_put,
- .execute = cifs_oplock_break,
-};
-
const struct address_space_operations cifs_addr_ops = {
.readpage = cifs_readpage,
.readpages = cifs_readpages,
@@ -2338,6 +2376,8 @@ const struct address_space_operations cifs_addr_ops = {
.write_begin = cifs_write_begin,
.write_end = cifs_write_end,
.set_page_dirty = __set_page_dirty_nobuffers,
+ .releasepage = cifs_release_page,
+ .invalidatepage = cifs_invalidate_page,
/* .sync_page = cifs_sync_page, */
/* .direct_IO = */
};
@@ -2354,6 +2394,8 @@ const struct address_space_operations cifs_addr_ops_smallbuf = {
.write_begin = cifs_write_begin,
.write_end = cifs_write_end,
.set_page_dirty = __set_page_dirty_nobuffers,
+ .releasepage = cifs_release_page,
+ .invalidatepage = cifs_invalidate_page,
/* .sync_page = cifs_sync_page, */
/* .direct_IO = */
};
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c
new file mode 100644
index 0000000..9f3f5c4
--- /dev/null
+++ b/fs/cifs/fscache.c
@@ -0,0 +1,236 @@
+/*
+ * fs/cifs/fscache.c - CIFS filesystem cache interface
+ *
+ * Copyright (c) 2010 Novell, Inc.
+ * Author(s): Suresh Jayaraman (sjayaraman@suse.de>
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "fscache.h"
+#include "cifsglob.h"
+#include "cifs_debug.h"
+#include "cifs_fs_sb.h"
+
+void cifs_fscache_get_client_cookie(struct TCP_Server_Info *server)
+{
+ server->fscache =
+ fscache_acquire_cookie(cifs_fscache_netfs.primary_index,
+ &cifs_fscache_server_index_def, server);
+ cFYI(1, "CIFS: get client cookie (0x%p/0x%p)", server,
+ server->fscache);
+}
+
+void cifs_fscache_release_client_cookie(struct TCP_Server_Info *server)
+{
+ cFYI(1, "CIFS: release client cookie (0x%p/0x%p)", server,
+ server->fscache);
+ fscache_relinquish_cookie(server->fscache, 0);
+ server->fscache = NULL;
+}
+
+void cifs_fscache_get_super_cookie(struct cifsTconInfo *tcon)
+{
+ struct TCP_Server_Info *server = tcon->ses->server;
+
+ tcon->fscache =
+ fscache_acquire_cookie(server->fscache,
+ &cifs_fscache_super_index_def, tcon);
+ cFYI(1, "CIFS: get superblock cookie (0x%p/0x%p)",
+ server->fscache, tcon->fscache);
+}
+
+void cifs_fscache_release_super_cookie(struct cifsTconInfo *tcon)
+{
+ cFYI(1, "CIFS: releasing superblock cookie (0x%p)", tcon->fscache);
+ fscache_relinquish_cookie(tcon->fscache, 0);
+ tcon->fscache = NULL;
+}
+
+static void cifs_fscache_enable_inode_cookie(struct inode *inode)
+{
+ struct cifsInodeInfo *cifsi = CIFS_I(inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+
+ if (cifsi->fscache)
+ return;
+
+ cifsi->fscache = fscache_acquire_cookie(cifs_sb->tcon->fscache,
+ &cifs_fscache_inode_object_def,
+ cifsi);
+ cFYI(1, "CIFS: got FH cookie (0x%p/0x%p)",
+ cifs_sb->tcon->fscache, cifsi->fscache);
+}
+
+void cifs_fscache_release_inode_cookie(struct inode *inode)
+{
+ struct cifsInodeInfo *cifsi = CIFS_I(inode);
+
+ if (cifsi->fscache) {
+ cFYI(1, "CIFS releasing inode cookie (0x%p)",
+ cifsi->fscache);
+ fscache_relinquish_cookie(cifsi->fscache, 0);
+ cifsi->fscache = NULL;
+ }
+}
+
+static void cifs_fscache_disable_inode_cookie(struct inode *inode)
+{
+ struct cifsInodeInfo *cifsi = CIFS_I(inode);
+
+ if (cifsi->fscache) {
+ cFYI(1, "CIFS disabling inode cookie (0x%p)",
+ cifsi->fscache);
+ fscache_relinquish_cookie(cifsi->fscache, 1);
+ cifsi->fscache = NULL;
+ }
+}
+
+void cifs_fscache_set_inode_cookie(struct inode *inode, struct file *filp)
+{
+ if ((filp->f_flags & O_ACCMODE) != O_RDONLY)
+ cifs_fscache_disable_inode_cookie(inode);
+ else {
+ cifs_fscache_enable_inode_cookie(inode);
+ cFYI(1, "CIFS: fscache inode cookie set");
+ }
+}
+
+void cifs_fscache_reset_inode_cookie(struct inode *inode)
+{
+ struct cifsInodeInfo *cifsi = CIFS_I(inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct fscache_cookie *old = cifsi->fscache;
+
+ if (cifsi->fscache) {
+ /* retire the current fscache cache and get a new one */
+ fscache_relinquish_cookie(cifsi->fscache, 1);
+
+ cifsi->fscache = fscache_acquire_cookie(cifs_sb->tcon->fscache,
+ &cifs_fscache_inode_object_def,
+ cifsi);
+ cFYI(1, "CIFS: new cookie 0x%p oldcookie 0x%p",
+ cifsi->fscache, old);
+ }
+}
+
+int cifs_fscache_release_page(struct page *page, gfp_t gfp)
+{
+ if (PageFsCache(page)) {
+ struct inode *inode = page->mapping->host;
+ struct cifsInodeInfo *cifsi = CIFS_I(inode);
+
+ cFYI(1, "CIFS: fscache release page (0x%p/0x%p)",
+ page, cifsi->fscache);
+ if (!fscache_maybe_release_page(cifsi->fscache, page, gfp))
+ return 0;
+ }
+
+ return 1;
+}
+
+static void cifs_readpage_from_fscache_complete(struct page *page, void *ctx,
+ int error)
+{
+ cFYI(1, "CFS: readpage_from_fscache_complete (0x%p/%d)",
+ page, error);
+ if (!error)
+ SetPageUptodate(page);
+ unlock_page(page);
+}
+
+/*
+ * Retrieve a page from FS-Cache
+ */
+int __cifs_readpage_from_fscache(struct inode *inode, struct page *page)
+{
+ int ret;
+
+ cFYI(1, "CIFS: readpage_from_fscache(fsc:%p, p:%p, i:0x%p",
+ CIFS_I(inode)->fscache, page, inode);
+ ret = fscache_read_or_alloc_page(CIFS_I(inode)->fscache, page,
+ cifs_readpage_from_fscache_complete,
+ NULL,
+ GFP_KERNEL);
+ switch (ret) {
+
+ case 0: /* page found in fscache, read submitted */
+ cFYI(1, "CIFS: readpage_from_fscache: submitted");
+ return ret;
+ case -ENOBUFS: /* page won't be cached */
+ case -ENODATA: /* page not in cache */
+ cFYI(1, "CIFS: readpage_from_fscache %d", ret);
+ return 1;
+
+ default:
+ cERROR(1, "unknown error ret = %d", ret);
+ }
+ return ret;
+}
+
+/*
+ * Retrieve a set of pages from FS-Cache
+ */
+int __cifs_readpages_from_fscache(struct inode *inode,
+ struct address_space *mapping,
+ struct list_head *pages,
+ unsigned *nr_pages)
+{
+ int ret;
+
+ cFYI(1, "CIFS: __cifs_readpages_from_fscache (0x%p/%u/0x%p)",
+ CIFS_I(inode)->fscache, *nr_pages, inode);
+ ret = fscache_read_or_alloc_pages(CIFS_I(inode)->fscache, mapping,
+ pages, nr_pages,
+ cifs_readpage_from_fscache_complete,
+ NULL,
+ mapping_gfp_mask(mapping));
+ switch (ret) {
+ case 0: /* read submitted to the cache for all pages */
+ cFYI(1, "CIFS: readpages_from_fscache: submitted");
+ return ret;
+
+ case -ENOBUFS: /* some pages are not cached and can't be */
+ case -ENODATA: /* some pages are not cached */
+ cFYI(1, "CIFS: readpages_from_fscache: no page");
+ return 1;
+
+ default:
+ cFYI(1, "unknown error ret = %d", ret);
+ }
+
+ return ret;
+}
+
+void __cifs_readpage_to_fscache(struct inode *inode, struct page *page)
+{
+ int ret;
+
+ cFYI(1, "CIFS: readpage_to_fscache(fsc: %p, p: %p, i: %p",
+ CIFS_I(inode)->fscache, page, inode);
+ ret = fscache_write_page(CIFS_I(inode)->fscache, page, GFP_KERNEL);
+ if (ret != 0)
+ fscache_uncache_page(CIFS_I(inode)->fscache, page);
+}
+
+void __cifs_fscache_invalidate_page(struct page *page, struct inode *inode)
+{
+ struct cifsInodeInfo *cifsi = CIFS_I(inode);
+ struct fscache_cookie *cookie = cifsi->fscache;
+
+ cFYI(1, "CIFS: fscache invalidatepage (0x%p/0x%p)", page, cookie);
+ fscache_wait_on_page_write(cookie, page);
+ fscache_uncache_page(cookie, page);
+}
+
diff --git a/fs/cifs/fscache.h b/fs/cifs/fscache.h
new file mode 100644
index 0000000..31b88ec2
--- /dev/null
+++ b/fs/cifs/fscache.h
@@ -0,0 +1,136 @@
+/*
+ * fs/cifs/fscache.h - CIFS filesystem cache interface definitions
+ *
+ * Copyright (c) 2010 Novell, Inc.
+ * Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _CIFS_FSCACHE_H
+#define _CIFS_FSCACHE_H
+
+#include <linux/fscache.h>
+
+#include "cifsglob.h"
+
+#ifdef CONFIG_CIFS_FSCACHE
+
+extern struct fscache_netfs cifs_fscache_netfs;
+extern const struct fscache_cookie_def cifs_fscache_server_index_def;
+extern const struct fscache_cookie_def cifs_fscache_super_index_def;
+extern const struct fscache_cookie_def cifs_fscache_inode_object_def;
+
+extern int cifs_fscache_register(void);
+extern void cifs_fscache_unregister(void);
+
+/*
+ * fscache.c
+ */
+extern void cifs_fscache_get_client_cookie(struct TCP_Server_Info *);
+extern void cifs_fscache_release_client_cookie(struct TCP_Server_Info *);
+extern void cifs_fscache_get_super_cookie(struct cifsTconInfo *);
+extern void cifs_fscache_release_super_cookie(struct cifsTconInfo *);
+
+extern void cifs_fscache_release_inode_cookie(struct inode *);
+extern void cifs_fscache_set_inode_cookie(struct inode *, struct file *);
+extern void cifs_fscache_reset_inode_cookie(struct inode *);
+
+extern void __cifs_fscache_invalidate_page(struct page *, struct inode *);
+extern int cifs_fscache_release_page(struct page *page, gfp_t gfp);
+extern int __cifs_readpage_from_fscache(struct inode *, struct page *);
+extern int __cifs_readpages_from_fscache(struct inode *,
+ struct address_space *,
+ struct list_head *,
+ unsigned *);
+
+extern void __cifs_readpage_to_fscache(struct inode *, struct page *);
+
+static inline void cifs_fscache_invalidate_page(struct page *page,
+ struct inode *inode)
+{
+ if (PageFsCache(page))
+ __cifs_fscache_invalidate_page(page, inode);
+}
+
+static inline int cifs_readpage_from_fscache(struct inode *inode,
+ struct page *page)
+{
+ if (CIFS_I(inode)->fscache)
+ return __cifs_readpage_from_fscache(inode, page);
+
+ return -ENOBUFS;
+}
+
+static inline int cifs_readpages_from_fscache(struct inode *inode,
+ struct address_space *mapping,
+ struct list_head *pages,
+ unsigned *nr_pages)
+{
+ if (CIFS_I(inode)->fscache)
+ return __cifs_readpages_from_fscache(inode, mapping, pages,
+ nr_pages);
+ return -ENOBUFS;
+}
+
+static inline void cifs_readpage_to_fscache(struct inode *inode,
+ struct page *page)
+{
+ if (PageFsCache(page))
+ __cifs_readpage_to_fscache(inode, page);
+}
+
+#else /* CONFIG_CIFS_FSCACHE */
+static inline int cifs_fscache_register(void) { return 0; }
+static inline void cifs_fscache_unregister(void) {}
+
+static inline void
+cifs_fscache_get_client_cookie(struct TCP_Server_Info *server) {}
+static inline void
+cifs_fscache_release_client_cookie(struct TCP_Server_Info *server) {}
+static inline void cifs_fscache_get_super_cookie(struct cifsTconInfo *tcon) {}
+static inline void
+cifs_fscache_release_super_cookie(struct cifsTconInfo *tcon) {}
+
+static inline void cifs_fscache_release_inode_cookie(struct inode *inode) {}
+static inline void cifs_fscache_set_inode_cookie(struct inode *inode,
+ struct file *filp) {}
+static inline void cifs_fscache_reset_inode_cookie(struct inode *inode) {}
+static inline int cifs_fscache_release_page(struct page *page, gfp_t gfp)
+{
+ return 1; /* May release page */
+}
+
+static inline void cifs_fscache_invalidate_page(struct page *page,
+ struct inode *inode) {}
+static inline int
+cifs_readpage_from_fscache(struct inode *inode, struct page *page)
+{
+ return -ENOBUFS;
+}
+
+static inline int cifs_readpages_from_fscache(struct inode *inode,
+ struct address_space *mapping,
+ struct list_head *pages,
+ unsigned *nr_pages)
+{
+ return -ENOBUFS;
+}
+
+static inline void cifs_readpage_to_fscache(struct inode *inode,
+ struct page *page) {}
+
+#endif /* CONFIG_CIFS_FSCACHE */
+
+#endif /* _CIFS_FSCACHE_H */
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 6f0683c..dc4c47a 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -29,6 +29,7 @@
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifs_fs_sb.h"
+#include "fscache.h"
static void cifs_set_ops(struct inode *inode, const bool is_dfs_referral)
@@ -288,7 +289,7 @@ int cifs_get_file_info_unix(struct file *filp)
struct inode *inode = filp->f_path.dentry->d_inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct cifsTconInfo *tcon = cifs_sb->tcon;
- struct cifsFileInfo *cfile = (struct cifsFileInfo *) filp->private_data;
+ struct cifsFileInfo *cfile = filp->private_data;
xid = GetXid();
rc = CIFSSMBUnixQFileInfo(xid, tcon, cfile->netfid, &find_data);
@@ -515,7 +516,7 @@ int cifs_get_file_info(struct file *filp)
struct inode *inode = filp->f_path.dentry->d_inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct cifsTconInfo *tcon = cifs_sb->tcon;
- struct cifsFileInfo *cfile = (struct cifsFileInfo *) filp->private_data;
+ struct cifsFileInfo *cfile = filp->private_data;
xid = GetXid();
rc = CIFSSMBQFileInfo(xid, tcon, cfile->netfid, &find_data);
@@ -723,18 +724,17 @@ cifs_find_inode(struct inode *inode, void *opaque)
{
struct cifs_fattr *fattr = (struct cifs_fattr *) opaque;
+ /* don't match inode with different uniqueid */
if (CIFS_I(inode)->uniqueid != fattr->cf_uniqueid)
return 0;
- /*
- * uh oh -- it's a directory. We can't use it since hardlinked dirs are
- * verboten. Disable serverino and return it as if it were found, the
- * caller can discard it, generate a uniqueid and retry the find
- */
- if (S_ISDIR(inode->i_mode) && !list_empty(&inode->i_dentry)) {
+ /* don't match inode of different type */
+ if ((inode->i_mode & S_IFMT) != (fattr->cf_mode & S_IFMT))
+ return 0;
+
+ /* if it's not a directory or has no dentries, then flag it */
+ if (S_ISDIR(inode->i_mode) && !list_empty(&inode->i_dentry))
fattr->cf_flags |= CIFS_FATTR_INO_COLLISION;
- cifs_autodisable_serverino(CIFS_SB(inode->i_sb));
- }
return 1;
}
@@ -748,6 +748,27 @@ cifs_init_inode(struct inode *inode, void *opaque)
return 0;
}
+/*
+ * walk dentry list for an inode and report whether it has aliases that
+ * are hashed. We use this to determine if a directory inode can actually
+ * be used.
+ */
+static bool
+inode_has_hashed_dentries(struct inode *inode)
+{
+ struct dentry *dentry;
+
+ spin_lock(&dcache_lock);
+ list_for_each_entry(dentry, &inode->i_dentry, d_alias) {
+ if (!d_unhashed(dentry) || IS_ROOT(dentry)) {
+ spin_unlock(&dcache_lock);
+ return true;
+ }
+ }
+ spin_unlock(&dcache_lock);
+ return false;
+}
+
/* Given fattrs, get a corresponding inode */
struct inode *
cifs_iget(struct super_block *sb, struct cifs_fattr *fattr)
@@ -763,12 +784,16 @@ retry_iget5_locked:
inode = iget5_locked(sb, hash, cifs_find_inode, cifs_init_inode, fattr);
if (inode) {
- /* was there a problematic inode number collision? */
+ /* was there a potentially problematic inode collision? */
if (fattr->cf_flags & CIFS_FATTR_INO_COLLISION) {
- iput(inode);
- fattr->cf_uniqueid = iunique(sb, ROOT_I);
fattr->cf_flags &= ~CIFS_FATTR_INO_COLLISION;
- goto retry_iget5_locked;
+
+ if (inode_has_hashed_dentries(inode)) {
+ cifs_autodisable_serverino(CIFS_SB(sb));
+ iput(inode);
+ fattr->cf_uniqueid = iunique(sb, ROOT_I);
+ goto retry_iget5_locked;
+ }
}
cifs_fattr_to_inode(inode, fattr);
@@ -776,6 +801,10 @@ retry_iget5_locked:
inode->i_flags |= S_NOATIME | S_NOCMTIME;
if (inode->i_state & I_NEW) {
inode->i_ino = hash;
+#ifdef CONFIG_CIFS_FSCACHE
+ /* initialize per-inode cache cookie pointer */
+ CIFS_I(inode)->fscache = NULL;
+#endif
unlock_new_inode(inode);
}
}
@@ -807,6 +836,11 @@ struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino)
if (!inode)
return ERR_PTR(-ENOMEM);
+#ifdef CONFIG_CIFS_FSCACHE
+ /* populate tcon->resource_id */
+ cifs_sb->tcon->resource_id = CIFS_I(inode)->uniqueid;
+#endif
+
if (rc && cifs_sb->tcon->ipc) {
cFYI(1, "ipc connection - fake read inode");
inode->i_mode |= S_IFDIR;
@@ -1568,6 +1602,7 @@ cifs_invalidate_mapping(struct inode *inode)
cifs_i->write_behind_rc = rc;
}
invalidate_remote_inode(inode);
+ cifs_fscache_reset_inode_cookie(inode);
}
int cifs_revalidate_file(struct file *filp)
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 505926f..9d38a71 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -41,8 +41,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
__u64 ExtAttrMask = 0;
__u64 caps;
struct cifsTconInfo *tcon;
- struct cifsFileInfo *pSMBFile =
- (struct cifsFileInfo *)filep->private_data;
+ struct cifsFileInfo *pSMBFile = filep->private_data;
#endif /* CONFIG_CIFS_POSIX */
xid = GetXid();
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 1394aa3..3ccadc1 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -498,7 +498,6 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
struct cifsTconInfo *tcon;
struct cifsInodeInfo *pCifsInode;
struct cifsFileInfo *netfile;
- int rc;
cFYI(1, "Checking for oplock break or dnotify response");
if ((pSMB->hdr.Command == SMB_COM_NT_TRANSACT) &&
@@ -583,13 +582,18 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
pCifsInode->clientCanCacheAll = false;
if (pSMB->OplockLevel == 0)
pCifsInode->clientCanCacheRead = false;
- rc = slow_work_enqueue(&netfile->oplock_break);
- if (rc) {
- cERROR(1, "failed to enqueue oplock "
- "break: %d\n", rc);
- } else {
- netfile->oplock_break_cancelled = false;
- }
+
+ /*
+ * cifs_oplock_break_put() can't be called
+ * from here. Get reference after queueing
+ * succeeded. cifs_oplock_break() will
+ * synchronize using GlobalSMSSeslock.
+ */
+ if (queue_work(system_nrt_wq,
+ &netfile->oplock_break))
+ cifs_oplock_break_get(netfile);
+ netfile->oplock_break_cancelled = false;
+
read_unlock(&GlobalSMBSeslock);
read_unlock(&cifs_tcp_ses_lock);
return true;
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index d35d528..f978511 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -61,6 +61,7 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = {
{ERRremcd, -EACCES},
{ERRdiffdevice, -EXDEV},
{ERRnofiles, -ENOENT},
+ {ERRwriteprot, -EROFS},
{ERRbadshare, -ETXTBSY},
{ERRlock, -EACCES},
{ERRunsup, -EINVAL},
@@ -139,17 +140,18 @@ static const struct smb_to_posix_error mapping_table_ERRHRD[] = {
* Returns 0 on failure.
*/
static int
-cifs_inet_pton(const int address_family, const char *cp, void *dst)
+cifs_inet_pton(const int address_family, const char *cp, int len, void *dst)
{
int ret = 0;
/* calculate length by finding first slash or NULL */
if (address_family == AF_INET)
- ret = in4_pton(cp, -1 /* len */, dst, '\\', NULL);
+ ret = in4_pton(cp, len, dst, '\\', NULL);
else if (address_family == AF_INET6)
- ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL);
+ ret = in6_pton(cp, len, dst , '\\', NULL);
- cFYI(DBG2, "address conversion returned %d for %s", ret, cp);
+ cFYI(DBG2, "address conversion returned %d for %*.*s",
+ ret, len, len, cp);
if (ret > 0)
ret = 1;
return ret;
@@ -164,43 +166,66 @@ cifs_inet_pton(const int address_family, const char *cp, void *dst)
* Returns 0 on failure.
*/
int
-cifs_convert_address(char *src, void *dst)
+cifs_convert_address(struct sockaddr *dst, const char *src, int len)
{
- int rc;
- char *pct, *endp;
+ int rc, alen, slen;
+ const char *pct;
+ char *endp, scope_id[13];
struct sockaddr_in *s4 = (struct sockaddr_in *) dst;
struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) dst;
/* IPv4 address */
- if (cifs_inet_pton(AF_INET, src, &s4->sin_addr.s_addr)) {
+ if (cifs_inet_pton(AF_INET, src, len, &s4->sin_addr.s_addr)) {
s4->sin_family = AF_INET;
return 1;
}
- /* temporarily terminate string */
- pct = strchr(src, '%');
- if (pct)
- *pct = '\0';
-
- rc = cifs_inet_pton(AF_INET6, src, &s6->sin6_addr.s6_addr);
-
- /* repair temp termination (if any) and make pct point to scopeid */
- if (pct)
- *pct++ = '%';
+ /* attempt to exclude the scope ID from the address part */
+ pct = memchr(src, '%', len);
+ alen = pct ? pct - src : len;
+ rc = cifs_inet_pton(AF_INET6, src, alen, &s6->sin6_addr.s6_addr);
if (!rc)
return rc;
s6->sin6_family = AF_INET6;
if (pct) {
+ /* grab the scope ID */
+ slen = len - (alen + 1);
+ if (slen <= 0 || slen > 12)
+ return 0;
+ memcpy(scope_id, pct + 1, slen);
+ scope_id[slen] = '\0';
+
s6->sin6_scope_id = (u32) simple_strtoul(pct, &endp, 0);
- if (!*pct || *endp)
+ if (endp != scope_id + slen)
return 0;
}
return rc;
}
+int
+cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
+ const unsigned short int port)
+{
+ if (!cifs_convert_address(dst, src, len))
+ return 0;
+
+ switch (dst->sa_family) {
+ case AF_INET:
+ ((struct sockaddr_in *)dst)->sin_port = htons(port);
+ break;
+ case AF_INET6:
+ ((struct sockaddr_in6 *)dst)->sin6_port = htons(port);
+ break;
+ default:
+ return 0;
+ }
+
+ return 1;
+}
+
/*****************************************************************************
convert a NT status code to a dos class/code
*****************************************************************************/
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index daf1753..d5e591f 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -847,6 +847,11 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + max_len;
tmp_buf = kmalloc(UNICODE_NAME_MAX, GFP_KERNEL);
+ if (tmp_buf == NULL) {
+ rc = -ENOMEM;
+ break;
+ }
+
for (i = 0; (i < num_to_fill) && (rc == 0); i++) {
if (current_entry == NULL) {
/* evaluate whether this case is an error */
diff --git a/fs/cifs/smberr.h b/fs/cifs/smberr.h
index c5084d2..7f16cb8 100644
--- a/fs/cifs/smberr.h
+++ b/fs/cifs/smberr.h
@@ -76,6 +76,7 @@
#define ERRnofiles 18 /* A File Search command can find no
more files matching the specified
criteria. */
+#define ERRwriteprot 19 /* media is write protected */
#define ERRgeneral 31
#define ERRbadshare 32 /* The sharing mode specified for an
Open conflicts with existing FIDs on
diff --git a/fs/compat.c b/fs/compat.c
index 6490d21..c6fda9a 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -8,7 +8,7 @@
* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 2001,2002 Andi Kleen, SuSE Labs
- * Copyright (C) 2003 Pavel Machek (pavel@suse.cz)
+ * Copyright (C) 2003 Pavel Machek (pavel@ucw.cz)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 618f381..5d9b936 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -4,7 +4,7 @@
* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 2001,2002 Andi Kleen, SuSE Labs
- * Copyright (C) 2003 Pavel Machek (pavel@suse.cz)
+ * Copyright (C) 2003 Pavel Machek (pavel@ucw.cz)
*
* These routines maintain argument size conversion between 32bit and 64bit
* ioctls.
@@ -578,8 +578,11 @@ static int do_smb_getmountuid(unsigned int fd, unsigned int cmd,
}
/* Bluetooth ioctls */
-#define HCIUARTSETPROTO _IOW('U', 200, int)
-#define HCIUARTGETPROTO _IOR('U', 201, int)
+#define HCIUARTSETPROTO _IOW('U', 200, int)
+#define HCIUARTGETPROTO _IOR('U', 201, int)
+#define HCIUARTGETDEVICE _IOR('U', 202, int)
+#define HCIUARTSETFLAGS _IOW('U', 203, int)
+#define HCIUARTGETFLAGS _IOR('U', 204, int)
#define BNEPCONNADD _IOW('B', 200, int)
#define BNEPCONNDEL _IOW('B', 201, int)
@@ -1298,6 +1301,8 @@ COMPATIBLE_IOCTL(HCISETLINKPOL)
COMPATIBLE_IOCTL(HCISETLINKMODE)
COMPATIBLE_IOCTL(HCISETACLMTU)
COMPATIBLE_IOCTL(HCISETSCOMTU)
+COMPATIBLE_IOCTL(HCIBLOCKADDR)
+COMPATIBLE_IOCTL(HCIUNBLOCKADDR)
COMPATIBLE_IOCTL(HCIINQUIRY)
COMPATIBLE_IOCTL(HCIUARTSETPROTO)
COMPATIBLE_IOCTL(HCIUARTGETPROTO)
diff --git a/fs/dcache.c b/fs/dcache.c
index c8c78ba..86d4db1 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -896,7 +896,7 @@ EXPORT_SYMBOL(shrink_dcache_parent);
*
* In this case we return -1 to tell the caller that we baled.
*/
-static int shrink_dcache_memory(int nr, gfp_t gfp_mask)
+static int shrink_dcache_memory(struct shrinker *shrink, int nr, gfp_t gfp_mask)
{
if (nr) {
if (!(gfp_mask & __GFP_FS))
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 7600aac..a10cb91 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -218,7 +218,7 @@ static struct page *dio_get_page(struct dio *dio)
* filesystems can use it to hold additional state between get_block calls and
* dio_complete.
*/
-static int dio_complete(struct dio *dio, loff_t offset, int ret)
+static int dio_complete(struct dio *dio, loff_t offset, int ret, bool is_async)
{
ssize_t transferred = 0;
@@ -239,14 +239,6 @@ static int dio_complete(struct dio *dio, loff_t offset, int ret)
transferred = dio->i_size - offset;
}
- if (dio->end_io && dio->result)
- dio->end_io(dio->iocb, offset, transferred,
- dio->map_bh.b_private);
-
- if (dio->flags & DIO_LOCKING)
- /* lockdep: non-owner release */
- up_read_non_owner(&dio->inode->i_alloc_sem);
-
if (ret == 0)
ret = dio->page_errors;
if (ret == 0)
@@ -254,6 +246,17 @@ static int dio_complete(struct dio *dio, loff_t offset, int ret)
if (ret == 0)
ret = transferred;
+ if (dio->end_io && dio->result) {
+ dio->end_io(dio->iocb, offset, transferred,
+ dio->map_bh.b_private, ret, is_async);
+ } else if (is_async) {
+ aio_complete(dio->iocb, ret, 0);
+ }
+
+ if (dio->flags & DIO_LOCKING)
+ /* lockdep: non-owner release */
+ up_read_non_owner(&dio->inode->i_alloc_sem);
+
return ret;
}
@@ -277,8 +280,7 @@ static void dio_bio_end_aio(struct bio *bio, int error)
spin_unlock_irqrestore(&dio->bio_lock, flags);
if (remaining == 0) {
- int ret = dio_complete(dio, dio->iocb->ki_pos, 0);
- aio_complete(dio->iocb, ret, 0);
+ dio_complete(dio, dio->iocb->ki_pos, 0, true);
kfree(dio);
}
}
@@ -1126,7 +1128,7 @@ direct_io_worker(int rw, struct kiocb *iocb, struct inode *inode,
spin_unlock_irqrestore(&dio->bio_lock, flags);
if (ret2 == 0) {
- ret = dio_complete(dio, offset, ret);
+ ret = dio_complete(dio, offset, ret, false);
kfree(dio);
} else
BUG_ON(ret != -EIOCBQUEUED);
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index c0d35c6..37a34c2 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -248,7 +248,7 @@ static struct connection *assoc2con(int assoc_id)
for (i = 0 ; i < CONN_HASH_SIZE; i++) {
hlist_for_each_entry(con, h, &connection_hash[i], list) {
- if (con && con->sctp_assoc == assoc_id) {
+ if (con->sctp_assoc == assoc_id) {
mutex_unlock(&connections_lock);
return con;
}
diff --git a/fs/dlm/netlink.c b/fs/dlm/netlink.c
index 2c6ad51..ef17e01 100644
--- a/fs/dlm/netlink.c
+++ b/fs/dlm/netlink.c
@@ -81,24 +81,11 @@ static struct genl_ops dlm_nl_ops = {
int __init dlm_netlink_init(void)
{
- int rv;
-
- rv = genl_register_family(&family);
- if (rv)
- return rv;
-
- rv = genl_register_ops(&family, &dlm_nl_ops);
- if (rv < 0)
- goto err;
- return 0;
- err:
- genl_unregister_family(&family);
- return rv;
+ return genl_register_family_with_ops(&family, &dlm_nl_ops, 1);
}
void dlm_netlink_exit(void)
{
- genl_unregister_ops(&family, &dlm_nl_ops);
genl_unregister_family(&family);
}
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 1cc0876..a2e3b56 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -762,7 +762,7 @@ ecryptfs_decrypt_page_offset(struct ecryptfs_crypt_stat *crypt_stat,
/**
* ecryptfs_init_crypt_ctx
- * @crypt_stat: Uninitilized crypt stats structure
+ * @crypt_stat: Uninitialized crypt stats structure
*
* Initialize the crypto context.
*
diff --git a/fs/ecryptfs/messaging.c b/fs/ecryptfs/messaging.c
index 2d8dbce..46c4dd8 100644
--- a/fs/ecryptfs/messaging.c
+++ b/fs/ecryptfs/messaging.c
@@ -31,9 +31,9 @@ static struct mutex ecryptfs_msg_ctx_lists_mux;
static struct hlist_head *ecryptfs_daemon_hash;
struct mutex ecryptfs_daemon_hash_mux;
-static int ecryptfs_hash_buckets;
+static int ecryptfs_hash_bits;
#define ecryptfs_uid_hash(uid) \
- hash_long((unsigned long)uid, ecryptfs_hash_buckets)
+ hash_long((unsigned long)uid, ecryptfs_hash_bits)
static u32 ecryptfs_msg_counter;
static struct ecryptfs_msg_ctx *ecryptfs_msg_ctx_arr;
@@ -486,18 +486,19 @@ int ecryptfs_init_messaging(void)
}
mutex_init(&ecryptfs_daemon_hash_mux);
mutex_lock(&ecryptfs_daemon_hash_mux);
- ecryptfs_hash_buckets = 1;
- while (ecryptfs_number_of_users >> ecryptfs_hash_buckets)
- ecryptfs_hash_buckets++;
+ ecryptfs_hash_bits = 1;
+ while (ecryptfs_number_of_users >> ecryptfs_hash_bits)
+ ecryptfs_hash_bits++;
ecryptfs_daemon_hash = kmalloc((sizeof(struct hlist_head)
- * ecryptfs_hash_buckets), GFP_KERNEL);
+ * (1 << ecryptfs_hash_bits)),
+ GFP_KERNEL);
if (!ecryptfs_daemon_hash) {
rc = -ENOMEM;
printk(KERN_ERR "%s: Failed to allocate memory\n", __func__);
mutex_unlock(&ecryptfs_daemon_hash_mux);
goto out;
}
- for (i = 0; i < ecryptfs_hash_buckets; i++)
+ for (i = 0; i < (1 << ecryptfs_hash_bits); i++)
INIT_HLIST_HEAD(&ecryptfs_daemon_hash[i]);
mutex_unlock(&ecryptfs_daemon_hash_mux);
ecryptfs_msg_ctx_arr = kmalloc((sizeof(struct ecryptfs_msg_ctx)
@@ -554,7 +555,7 @@ void ecryptfs_release_messaging(void)
int i;
mutex_lock(&ecryptfs_daemon_hash_mux);
- for (i = 0; i < ecryptfs_hash_buckets; i++) {
+ for (i = 0; i < (1 << ecryptfs_hash_bits); i++) {
int rc;
hlist_for_each_entry(daemon, elem,
diff --git a/fs/exec.c b/fs/exec.c
index e19de6a..dab85ec 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -28,7 +28,6 @@
#include <linux/mm.h>
#include <linux/stat.h>
#include <linux/fcntl.h>
-#include <linux/smp_lock.h>
#include <linux/swap.h>
#include <linux/string.h>
#include <linux/init.h>
@@ -653,6 +652,7 @@ int setup_arg_pages(struct linux_binprm *bprm,
else
stack_base = vma->vm_start - stack_expand;
#endif
+ current->mm->start_stack = bprm->p;
ret = expand_stack(vma, stack_base);
if (ret)
ret = -EFAULT;
@@ -1891,13 +1891,7 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs)
*/
clear_thread_flag(TIF_SIGPENDING);
- /*
- * lock_kernel() because format_corename() is controlled by sysctl, which
- * uses lock_kernel()
- */
- lock_kernel();
ispipe = format_corename(corename, signr);
- unlock_kernel();
if (ispipe) {
int dump_count;
diff --git a/fs/ext3/Kconfig b/fs/ext3/Kconfig
index 522b154..e8c6ba0 100644
--- a/fs/ext3/Kconfig
+++ b/fs/ext3/Kconfig
@@ -31,6 +31,7 @@ config EXT3_FS
config EXT3_DEFAULTS_TO_ORDERED
bool "Default to 'data=ordered' in ext3"
depends on EXT3_FS
+ default y
help
The journal mode options for ext3 have different tradeoffs
between when data is guaranteed to be on disk and
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 735f019..001eb0e 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -1149,9 +1149,25 @@ static int walk_page_buffers( handle_t *handle,
static int do_journal_get_write_access(handle_t *handle,
struct buffer_head *bh)
{
+ int dirty = buffer_dirty(bh);
+ int ret;
+
if (!buffer_mapped(bh) || buffer_freed(bh))
return 0;
- return ext3_journal_get_write_access(handle, bh);
+ /*
+ * __block_prepare_write() could have dirtied some buffers. Clean
+ * the dirty bit as jbd2_journal_get_write_access() could complain
+ * otherwise about fs integrity issues. Setting of the dirty bit
+ * by __block_prepare_write() isn't a real problem here as we clear
+ * the bit before releasing a page lock and thus writeback cannot
+ * ever write the buffer.
+ */
+ if (dirty)
+ clear_buffer_dirty(bh);
+ ret = ext3_journal_get_write_access(handle, bh);
+ if (!ret && dirty)
+ ret = ext3_journal_dirty_metadata(handle, bh);
+ return ret;
}
/*
@@ -1625,10 +1641,7 @@ static int ext3_writeback_writepage(struct page *page,
goto out_fail;
}
- if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode))
- ret = nobh_writepage(page, ext3_get_block, wbc);
- else
- ret = block_write_full_page(page, ext3_get_block, wbc);
+ ret = block_write_full_page(page, ext3_get_block, wbc);
err = ext3_journal_stop(handle);
if (!ret)
@@ -1922,17 +1935,6 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
length = blocksize - (offset & (blocksize - 1));
iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
- /*
- * For "nobh" option, we can only work if we don't need to
- * read-in the page - otherwise we create buffers to do the IO.
- */
- if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
- ext3_should_writeback_data(inode) && PageUptodate(page)) {
- zero_user(page, offset, length);
- set_page_dirty(page);
- goto unlock;
- }
-
if (!page_has_buffers(page))
create_empty_buffers(page, blocksize, 0);
@@ -2284,27 +2286,6 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
depth);
/*
- * We've probably journalled the indirect block several
- * times during the truncate. But it's no longer
- * needed and we now drop it from the transaction via
- * journal_revoke().
- *
- * That's easy if it's exclusively part of this
- * transaction. But if it's part of the committing
- * transaction then journal_forget() will simply
- * brelse() it. That means that if the underlying
- * block is reallocated in ext3_get_block(),
- * unmap_underlying_metadata() will find this block
- * and will try to get rid of it. damn, damn.
- *
- * If this block has already been committed to the
- * journal, a revoke record will be written. And
- * revoke records must be emitted *before* clearing
- * this block's bit in the bitmaps.
- */
- ext3_forget(handle, 1, inode, bh, bh->b_blocknr);
-
- /*
* Everything below this this pointer has been
* released. Now let this top-of-subtree go.
*
@@ -2327,6 +2308,31 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
truncate_restart_transaction(handle, inode);
}
+ /*
+ * We've probably journalled the indirect block several
+ * times during the truncate. But it's no longer
+ * needed and we now drop it from the transaction via
+ * journal_revoke().
+ *
+ * That's easy if it's exclusively part of this
+ * transaction. But if it's part of the committing
+ * transaction then journal_forget() will simply
+ * brelse() it. That means that if the underlying
+ * block is reallocated in ext3_get_block(),
+ * unmap_underlying_metadata() will find this block
+ * and will try to get rid of it. damn, damn. Thus
+ * we don't allow a block to be reallocated until
+ * a transaction freeing it has fully committed.
+ *
+ * We also have to make sure journal replay after a
+ * crash does not overwrite non-journaled data blocks
+ * with old metadata when the block got reallocated for
+ * data. Thus we have to store a revoke record for a
+ * block in the same transaction in which we free the
+ * block.
+ */
+ ext3_forget(handle, 1, inode, bh, bh->b_blocknr);
+
ext3_free_blocks(handle, inode, nr, 1);
if (parent_bh) {
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index ee18408..2b35ddb 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1447,7 +1447,6 @@ static int ext3_add_entry (handle_t *handle, struct dentry *dentry,
struct inode *inode)
{
struct inode *dir = dentry->d_parent->d_inode;
- unsigned long offset;
struct buffer_head * bh;
struct ext3_dir_entry_2 *de;
struct super_block * sb;
@@ -1469,7 +1468,7 @@ static int ext3_add_entry (handle_t *handle, struct dentry *dentry,
ext3_mark_inode_dirty(handle, dir);
}
blocks = dir->i_size >> sb->s_blocksize_bits;
- for (block = 0, offset = 0; block < blocks; block++) {
+ for (block = 0; block < blocks; block++) {
bh = ext3_bread(handle, dir, block, 0, &retval);
if(!bh)
return retval;
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 54351ac..0ccd7b1 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -964,7 +964,6 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
ext3_fsblk_t n_blocks_count)
{
ext3_fsblk_t o_blocks_count;
- unsigned long o_groups_count;
ext3_grpblk_t last;
ext3_grpblk_t add;
struct buffer_head * bh;
@@ -976,7 +975,6 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
* yet: we're going to revalidate es->s_blocks_count after
* taking the s_resize_lock below. */
o_blocks_count = le32_to_cpu(es->s_blocks_count);
- o_groups_count = EXT3_SB(sb)->s_groups_count;
if (test_opt(sb, DEBUG))
printk(KERN_DEBUG "EXT3-fs: extending last group from "E3FSBLK" uto "E3FSBLK" blocks\n",
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 6c953bb..9650a95 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -661,9 +661,6 @@ static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
*/
seq_puts(seq, ",barrier=");
seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0");
- if (test_opt(sb, NOBH))
- seq_puts(seq, ",nobh");
-
seq_printf(seq, ",data=%s", data_mode_string(test_opt(sb, DATA_FLAGS)));
if (test_opt(sb, DATA_ERR_ABORT))
seq_puts(seq, ",data_err=abort");
@@ -1255,10 +1252,12 @@ set_qf_format:
*n_blocks_count = option;
break;
case Opt_nobh:
- set_opt(sbi->s_mount_opt, NOBH);
+ ext3_msg(sb, KERN_WARNING,
+ "warning: ignoring deprecated nobh option");
break;
case Opt_bh:
- clear_opt(sbi->s_mount_opt, NOBH);
+ ext3_msg(sb, KERN_WARNING,
+ "warning: ignoring deprecated bh option");
break;
default:
ext3_msg(sb, KERN_ERR,
@@ -2001,14 +2000,6 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
break;
}
- if (test_opt(sb, NOBH)) {
- if (!(test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)) {
- ext3_msg(sb, KERN_WARNING,
- "warning: ignoring nobh option - "
- "it is supported only with writeback mode");
- clear_opt(sbi->s_mount_opt, NOBH);
- }
- }
/*
* The journal_load will have done any necessary log recovery,
* so we can safely mount the rest of the filesystem now.
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index feaf498..5e2ed45 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -204,6 +204,7 @@ ext4_set_acl(handle_t *handle, struct inode *inode, int type,
return error;
else {
inode->i_mode = mode;
+ inode->i_ctime = ext4_current_time(inode);
ext4_mark_inode_dirty(handle, inode);
if (error == 0)
acl = NULL;
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 95b7594..bd30799 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -377,14 +377,11 @@ void ext4_add_groupblocks(handle_t *handle, struct super_block *sb,
ext4_grpblk_t bit;
unsigned int i;
struct ext4_group_desc *desc;
- struct ext4_super_block *es;
- struct ext4_sb_info *sbi;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
int err = 0, ret, blk_free_count;
ext4_grpblk_t blocks_freed;
struct ext4_group_info *grp;
- sbi = EXT4_SB(sb);
- es = sbi->s_es;
ext4_debug("Adding block(s) %llu-%llu\n", block, block + count - 1);
ext4_get_group_no_and_offset(sb, block, &block_group, &bit);
@@ -477,7 +474,6 @@ void ext4_add_groupblocks(handle_t *handle, struct super_block *sb,
ret = ext4_handle_dirty_metadata(handle, NULL, gd_bh);
if (!err)
err = ret;
- sb->s_dirt = 1;
error_return:
brelse(bitmap_bh);
diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c
index 5b6973f..3db5084 100644
--- a/fs/ext4/block_validity.c
+++ b/fs/ext4/block_validity.c
@@ -229,16 +229,20 @@ int ext4_data_block_valid(struct ext4_sb_info *sbi, ext4_fsblk_t start_blk,
if ((start_blk <= le32_to_cpu(sbi->s_es->s_first_data_block)) ||
(start_blk + count < start_blk) ||
- (start_blk + count > ext4_blocks_count(sbi->s_es)))
+ (start_blk + count > ext4_blocks_count(sbi->s_es))) {
+ sbi->s_es->s_last_error_block = cpu_to_le64(start_blk);
return 0;
+ }
while (n) {
entry = rb_entry(n, struct ext4_system_zone, node);
if (start_blk + count - 1 < entry->start_blk)
n = n->rb_left;
else if (start_blk >= (entry->start_blk + entry->count))
n = n->rb_right;
- else
+ else {
+ sbi->s_es->s_last_error_block = cpu_to_le64(start_blk);
return 0;
+ }
}
return 1;
}
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index ea5e6cb..374510f 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -61,10 +61,11 @@ static unsigned char get_dtype(struct super_block *sb, int filetype)
}
-int ext4_check_dir_entry(const char *function, struct inode *dir,
- struct ext4_dir_entry_2 *de,
- struct buffer_head *bh,
- unsigned int offset)
+int __ext4_check_dir_entry(const char *function, unsigned int line,
+ struct inode *dir,
+ struct ext4_dir_entry_2 *de,
+ struct buffer_head *bh,
+ unsigned int offset)
{
const char *error_msg = NULL;
const int rlen = ext4_rec_len_from_disk(de->rec_len,
@@ -83,11 +84,10 @@ int ext4_check_dir_entry(const char *function, struct inode *dir,
error_msg = "inode out of bounds";
if (error_msg != NULL)
- ext4_error_inode(function, dir,
- "bad entry in directory: %s - block=%llu"
+ ext4_error_inode(dir, function, line, bh->b_blocknr,
+ "bad entry in directory: %s - "
"offset=%u(%u), inode=%u, rec_len=%d, name_len=%d",
- error_msg, (unsigned long long) bh->b_blocknr,
- (unsigned) (offset%bh->b_size), offset,
+ error_msg, (unsigned) (offset%bh->b_size), offset,
le32_to_cpu(de->inode),
rlen, de->name_len);
return error_msg == NULL ? 1 : 0;
@@ -121,7 +121,8 @@ static int ext4_readdir(struct file *filp,
* We don't set the inode dirty flag since it's not
* critical that it get flushed back to the disk.
*/
- ext4_clear_inode_flag(filp->f_path.dentry->d_inode, EXT4_INODE_INDEX);
+ ext4_clear_inode_flag(filp->f_path.dentry->d_inode,
+ EXT4_INODE_INDEX);
}
stored = 0;
offset = filp->f_pos & (sb->s_blocksize - 1);
@@ -193,7 +194,7 @@ revalidate:
while (!error && filp->f_pos < inode->i_size
&& offset < sb->s_blocksize) {
de = (struct ext4_dir_entry_2 *) (bh->b_data + offset);
- if (!ext4_check_dir_entry("ext4_readdir", inode, de,
+ if (!ext4_check_dir_entry(inode, de,
bh, offset)) {
/*
* On error, skip the f_pos to the next block
@@ -343,7 +344,7 @@ int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
struct dir_private_info *info;
int len;
- info = (struct dir_private_info *) dir_file->private_data;
+ info = dir_file->private_data;
p = &info->root.rb_node;
/* Create and allocate the fname structure */
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 19a4de5..e03841d 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -57,10 +57,13 @@
#endif
#define EXT4_ERROR_INODE(inode, fmt, a...) \
- ext4_error_inode(__func__, (inode), (fmt), ## a)
+ ext4_error_inode((inode), __func__, __LINE__, 0, (fmt), ## a)
+
+#define EXT4_ERROR_INODE_BLOCK(inode, block, fmt, a...) \
+ ext4_error_inode((inode), __func__, __LINE__, (block), (fmt), ## a)
#define EXT4_ERROR_FILE(file, fmt, a...) \
- ext4_error_file(__func__, (file), (fmt), ## a)
+ ext4_error_file(__func__, __LINE__, (file), (fmt), ## a)
/* data type for block offset of block group */
typedef int ext4_grpblk_t;
@@ -167,13 +170,15 @@ struct mpage_da_data {
};
#define EXT4_IO_UNWRITTEN 0x1
typedef struct ext4_io_end {
- struct list_head list; /* per-file finished AIO list */
+ struct list_head list; /* per-file finished IO list */
struct inode *inode; /* file being written to */
unsigned int flag; /* unwritten or not */
struct page *page; /* page struct for buffer write */
loff_t offset; /* offset in the file */
ssize_t size; /* size of the extent */
struct work_struct work; /* data work queue */
+ struct kiocb *iocb; /* iocb struct for AIO */
+ int result; /* error value for AIO */
} ext4_io_end_t;
/*
@@ -460,7 +465,7 @@ struct ext4_new_group_data {
};
/*
- * Flags used by ext4_get_blocks()
+ * Flags used by ext4_map_blocks()
*/
/* Allocate any needed blocks and/or convert an unitialized
extent to be an initialized ext4 */
@@ -873,7 +878,6 @@ struct ext4_inode_info {
#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */
#define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc mapping */
#define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */
-#define EXT4_MOUNT_NOBH 0x40000 /* No bufferheads */
#define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */
#define EXT4_MOUNT_USRQUOTA 0x100000 /* "old" user quota */
#define EXT4_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
@@ -982,7 +986,7 @@ struct ext4_super_block {
__le32 s_last_orphan; /* start of list of inodes to delete */
__le32 s_hash_seed[4]; /* HTREE hash seed */
__u8 s_def_hash_version; /* Default hash version to use */
- __u8 s_reserved_char_pad;
+ __u8 s_jnl_backup_type;
__le16 s_desc_size; /* size of group descriptor */
/*100*/ __le32 s_default_mount_opts;
__le32 s_first_meta_bg; /* First metablock block group */
@@ -1000,12 +1004,34 @@ struct ext4_super_block {
__le64 s_mmp_block; /* Block for multi-mount protection */
__le32 s_raid_stripe_width; /* blocks on all data disks (N*stride)*/
__u8 s_log_groups_per_flex; /* FLEX_BG group size */
- __u8 s_reserved_char_pad2;
+ __u8 s_reserved_char_pad;
__le16 s_reserved_pad;
__le64 s_kbytes_written; /* nr of lifetime kilobytes written */
- __u32 s_reserved[160]; /* Padding to the end of the block */
+ __le32 s_snapshot_inum; /* Inode number of active snapshot */
+ __le32 s_snapshot_id; /* sequential ID of active snapshot */
+ __le64 s_snapshot_r_blocks_count; /* reserved blocks for active
+ snapshot's future use */
+ __le32 s_snapshot_list; /* inode number of the head of the
+ on-disk snapshot list */
+#define EXT4_S_ERR_START offsetof(struct ext4_super_block, s_error_count)
+ __le32 s_error_count; /* number of fs errors */
+ __le32 s_first_error_time; /* first time an error happened */
+ __le32 s_first_error_ino; /* inode involved in first error */
+ __le64 s_first_error_block; /* block involved of first error */
+ __u8 s_first_error_func[32]; /* function where the error happened */
+ __le32 s_first_error_line; /* line number where error happened */
+ __le32 s_last_error_time; /* most recent time of an error */
+ __le32 s_last_error_ino; /* inode involved in last error */
+ __le32 s_last_error_line; /* line number where error happened */
+ __le64 s_last_error_block; /* block involved of last error */
+ __u8 s_last_error_func[32]; /* function where the error happened */
+#define EXT4_S_ERR_END offsetof(struct ext4_super_block, s_mount_opts)
+ __u8 s_mount_opts[64];
+ __le32 s_reserved[112]; /* Padding to the end of the block */
};
+#define EXT4_S_ERR_LEN (EXT4_S_ERR_END - EXT4_S_ERR_START)
+
#ifdef __KERNEL__
/*
@@ -1143,6 +1169,9 @@ struct ext4_sb_info {
/* workqueue for dio unwritten */
struct workqueue_struct *dio_unwritten_wq;
+
+ /* timer for periodic error stats printing */
+ struct timer_list s_err_report;
};
static inline struct ext4_sb_info *EXT4_SB(struct super_block *sb)
@@ -1313,6 +1342,10 @@ EXT4_INODE_BIT_FNS(state, state_flags)
#define EXT4_DEFM_JMODE_DATA 0x0020
#define EXT4_DEFM_JMODE_ORDERED 0x0040
#define EXT4_DEFM_JMODE_WBACK 0x0060
+#define EXT4_DEFM_NOBARRIER 0x0100
+#define EXT4_DEFM_BLOCK_VALIDITY 0x0200
+#define EXT4_DEFM_DISCARD 0x0400
+#define EXT4_DEFM_NODELALLOC 0x0800
/*
* Default journal batch times
@@ -1379,6 +1412,43 @@ struct ext4_dir_entry_2 {
#define EXT4_MAX_REC_LEN ((1<<16)-1)
/*
+ * If we ever get support for fs block sizes > page_size, we'll need
+ * to remove the #if statements in the next two functions...
+ */
+static inline unsigned int
+ext4_rec_len_from_disk(__le16 dlen, unsigned blocksize)
+{
+ unsigned len = le16_to_cpu(dlen);
+
+#if (PAGE_CACHE_SIZE >= 65536)
+ if (len == EXT4_MAX_REC_LEN || len == 0)
+ return blocksize;
+ return (len & 65532) | ((len & 3) << 16);
+#else
+ return len;
+#endif
+}
+
+static inline __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize)
+{
+ if ((len > blocksize) || (blocksize > (1 << 18)) || (len & 3))
+ BUG();
+#if (PAGE_CACHE_SIZE >= 65536)
+ if (len < 65536)
+ return cpu_to_le16(len);
+ if (len == blocksize) {
+ if (blocksize == 65536)
+ return cpu_to_le16(EXT4_MAX_REC_LEN);
+ else
+ return cpu_to_le16(0);
+ }
+ return cpu_to_le16((len & 65532) | ((len >> 16) & 3));
+#else
+ return cpu_to_le16(len);
+#endif
+}
+
+/*
* Hash Tree Directory indexing
* (c) Daniel Phillips, 2001
*/
@@ -1510,9 +1580,11 @@ extern unsigned ext4_init_block_bitmap(struct super_block *sb,
ext4_init_block_bitmap(sb, NULL, group, desc)
/* dir.c */
-extern int ext4_check_dir_entry(const char *, struct inode *,
- struct ext4_dir_entry_2 *,
- struct buffer_head *, unsigned int);
+extern int __ext4_check_dir_entry(const char *, unsigned int, struct inode *,
+ struct ext4_dir_entry_2 *,
+ struct buffer_head *, unsigned int);
+#define ext4_check_dir_entry(dir, de, bh, offset) \
+ __ext4_check_dir_entry(__func__, __LINE__, (dir), (de), (bh), (offset))
extern int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
__u32 minor_hash,
struct ext4_dir_entry_2 *dirent);
@@ -1601,8 +1673,6 @@ extern long ext4_compat_ioctl(struct file *, unsigned int, unsigned long);
extern int ext4_ext_migrate(struct inode *);
/* namei.c */
-extern unsigned int ext4_rec_len_from_disk(__le16 dlen, unsigned blocksize);
-extern __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize);
extern int ext4_orphan_add(handle_t *, struct inode *);
extern int ext4_orphan_del(handle_t *, struct inode *);
extern int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
@@ -1616,25 +1686,38 @@ extern int ext4_group_extend(struct super_block *sb,
ext4_fsblk_t n_blocks_count);
/* super.c */
-extern void __ext4_error(struct super_block *, const char *, const char *, ...)
- __attribute__ ((format (printf, 3, 4)));
-#define ext4_error(sb, message...) __ext4_error(sb, __func__, ## message)
-extern void ext4_error_inode(const char *, struct inode *, const char *, ...)
- __attribute__ ((format (printf, 3, 4)));
-extern void ext4_error_file(const char *, struct file *, const char *, ...)
- __attribute__ ((format (printf, 3, 4)));
-extern void __ext4_std_error(struct super_block *, const char *, int);
-extern void ext4_abort(struct super_block *, const char *, const char *, ...)
- __attribute__ ((format (printf, 3, 4)));
-extern void __ext4_warning(struct super_block *, const char *,
+extern void __ext4_error(struct super_block *, const char *, unsigned int,
+ const char *, ...)
+ __attribute__ ((format (printf, 4, 5)));
+#define ext4_error(sb, message...) __ext4_error(sb, __func__, \
+ __LINE__, ## message)
+extern void ext4_error_inode(struct inode *, const char *, unsigned int,
+ ext4_fsblk_t, const char *, ...)
+ __attribute__ ((format (printf, 5, 6)));
+extern void ext4_error_file(struct file *, const char *, unsigned int,
+ const char *, ...)
+ __attribute__ ((format (printf, 4, 5)));
+extern void __ext4_std_error(struct super_block *, const char *,
+ unsigned int, int);
+extern void __ext4_abort(struct super_block *, const char *, unsigned int,
+ const char *, ...)
+ __attribute__ ((format (printf, 4, 5)));
+#define ext4_abort(sb, message...) __ext4_abort(sb, __func__, \
+ __LINE__, ## message)
+extern void __ext4_warning(struct super_block *, const char *, unsigned int,
const char *, ...)
- __attribute__ ((format (printf, 3, 4)));
-#define ext4_warning(sb, message...) __ext4_warning(sb, __func__, ## message)
+ __attribute__ ((format (printf, 4, 5)));
+#define ext4_warning(sb, message...) __ext4_warning(sb, __func__, \
+ __LINE__, ## message)
extern void ext4_msg(struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
-extern void ext4_grp_locked_error(struct super_block *, ext4_group_t,
- const char *, const char *, ...)
- __attribute__ ((format (printf, 4, 5)));
+extern void __ext4_grp_locked_error(const char *, unsigned int, \
+ struct super_block *, ext4_group_t, \
+ unsigned long, ext4_fsblk_t, \
+ const char *, ...)
+ __attribute__ ((format (printf, 7, 8)));
+#define ext4_grp_locked_error(sb, grp, message...) \
+ __ext4_grp_locked_error(__func__, __LINE__, (sb), (grp), ## message)
extern void ext4_update_dynamic_rev(struct super_block *sb);
extern int ext4_update_compat_feature(handle_t *handle, struct super_block *sb,
__u32 compat);
@@ -1768,7 +1851,7 @@ static inline unsigned int ext4_flex_bg_size(struct ext4_sb_info *sbi)
#define ext4_std_error(sb, errno) \
do { \
if ((errno)) \
- __ext4_std_error((sb), __func__, (errno)); \
+ __ext4_std_error((sb), __func__, __LINE__, (errno)); \
} while (0)
#ifdef CONFIG_SMP
@@ -1860,6 +1943,12 @@ static inline void ext4_unlock_group(struct super_block *sb,
spin_unlock(ext4_group_lock_ptr(sb, group));
}
+static inline void ext4_mark_super_dirty(struct super_block *sb)
+{
+ if (EXT4_SB(sb)->s_journal == NULL)
+ sb->s_dirt =1;
+}
+
/*
* Inodes and files operations
*/
@@ -1905,9 +1994,6 @@ extern int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset,
ssize_t len);
extern int ext4_map_blocks(handle_t *handle, struct inode *inode,
struct ext4_map_blocks *map, int flags);
-extern int ext4_get_blocks(handle_t *handle, struct inode *inode,
- sector_t block, unsigned int max_blocks,
- struct buffer_head *bh, int flags);
extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
__u64 start, __u64 len);
/* move_extent.c */
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index 53d2764..6e272ef 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -6,29 +6,29 @@
#include <trace/events/ext4.h>
-int __ext4_journal_get_undo_access(const char *where, handle_t *handle,
- struct buffer_head *bh)
+int __ext4_journal_get_undo_access(const char *where, unsigned int line,
+ handle_t *handle, struct buffer_head *bh)
{
int err = 0;
if (ext4_handle_valid(handle)) {
err = jbd2_journal_get_undo_access(handle, bh);
if (err)
- ext4_journal_abort_handle(where, __func__, bh,
+ ext4_journal_abort_handle(where, line, __func__, bh,
handle, err);
}
return err;
}
-int __ext4_journal_get_write_access(const char *where, handle_t *handle,
- struct buffer_head *bh)
+int __ext4_journal_get_write_access(const char *where, unsigned int line,
+ handle_t *handle, struct buffer_head *bh)
{
int err = 0;
if (ext4_handle_valid(handle)) {
err = jbd2_journal_get_write_access(handle, bh);
if (err)
- ext4_journal_abort_handle(where, __func__, bh,
+ ext4_journal_abort_handle(where, line, __func__, bh,
handle, err);
}
return err;
@@ -46,9 +46,9 @@ int __ext4_journal_get_write_access(const char *where, handle_t *handle,
* If the handle isn't valid we're not journaling, but we still need to
* call into ext4_journal_revoke() to put the buffer head.
*/
-int __ext4_forget(const char *where, handle_t *handle, int is_metadata,
- struct inode *inode, struct buffer_head *bh,
- ext4_fsblk_t blocknr)
+int __ext4_forget(const char *where, unsigned int line, handle_t *handle,
+ int is_metadata, struct inode *inode,
+ struct buffer_head *bh, ext4_fsblk_t blocknr)
{
int err;
@@ -79,8 +79,8 @@ int __ext4_forget(const char *where, handle_t *handle, int is_metadata,
BUFFER_TRACE(bh, "call jbd2_journal_forget");
err = jbd2_journal_forget(handle, bh);
if (err)
- ext4_journal_abort_handle(where, __func__, bh,
- handle, err);
+ ext4_journal_abort_handle(where, line, __func__,
+ bh, handle, err);
return err;
}
return 0;
@@ -92,15 +92,16 @@ int __ext4_forget(const char *where, handle_t *handle, int is_metadata,
BUFFER_TRACE(bh, "call jbd2_journal_revoke");
err = jbd2_journal_revoke(handle, blocknr, bh);
if (err) {
- ext4_journal_abort_handle(where, __func__, bh, handle, err);
- ext4_abort(inode->i_sb, __func__,
+ ext4_journal_abort_handle(where, line, __func__,
+ bh, handle, err);
+ __ext4_abort(inode->i_sb, where, line,
"error %d when attempting revoke", err);
}
BUFFER_TRACE(bh, "exit");
return err;
}
-int __ext4_journal_get_create_access(const char *where,
+int __ext4_journal_get_create_access(const char *where, unsigned int line,
handle_t *handle, struct buffer_head *bh)
{
int err = 0;
@@ -108,22 +109,23 @@ int __ext4_journal_get_create_access(const char *where,
if (ext4_handle_valid(handle)) {
err = jbd2_journal_get_create_access(handle, bh);
if (err)
- ext4_journal_abort_handle(where, __func__, bh,
- handle, err);
+ ext4_journal_abort_handle(where, line, __func__,
+ bh, handle, err);
}
return err;
}
-int __ext4_handle_dirty_metadata(const char *where, handle_t *handle,
- struct inode *inode, struct buffer_head *bh)
+int __ext4_handle_dirty_metadata(const char *where, unsigned int line,
+ handle_t *handle, struct inode *inode,
+ struct buffer_head *bh)
{
int err = 0;
if (ext4_handle_valid(handle)) {
err = jbd2_journal_dirty_metadata(handle, bh);
if (err)
- ext4_journal_abort_handle(where, __func__, bh,
- handle, err);
+ ext4_journal_abort_handle(where, line, __func__,
+ bh, handle, err);
} else {
if (inode)
mark_buffer_dirty_inode(bh, inode);
@@ -132,14 +134,33 @@ int __ext4_handle_dirty_metadata(const char *where, handle_t *handle,
if (inode && inode_needs_sync(inode)) {
sync_dirty_buffer(bh);
if (buffer_req(bh) && !buffer_uptodate(bh)) {
- ext4_error(inode->i_sb,
- "IO error syncing inode, "
- "inode=%lu, block=%llu",
- inode->i_ino,
- (unsigned long long) bh->b_blocknr);
+ struct ext4_super_block *es;
+
+ es = EXT4_SB(inode->i_sb)->s_es;
+ es->s_last_error_block =
+ cpu_to_le64(bh->b_blocknr);
+ ext4_error_inode(inode, where, line,
+ bh->b_blocknr,
+ "IO error syncing itable block");
err = -EIO;
}
}
}
return err;
}
+
+int __ext4_handle_dirty_super(const char *where, unsigned int line,
+ handle_t *handle, struct super_block *sb)
+{
+ struct buffer_head *bh = EXT4_SB(sb)->s_sbh;
+ int err = 0;
+
+ if (ext4_handle_valid(handle)) {
+ err = jbd2_journal_dirty_metadata(handle, bh);
+ if (err)
+ ext4_journal_abort_handle(where, line, __func__,
+ bh, handle, err);
+ } else
+ sb->s_dirt = 1;
+ return err;
+}
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index dade0c0..b0bd792 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -122,39 +122,47 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode);
/*
* Wrapper functions with which ext4 calls into JBD.
*/
-void ext4_journal_abort_handle(const char *caller, const char *err_fn,
+void ext4_journal_abort_handle(const char *caller, unsigned int line,
+ const char *err_fn,
struct buffer_head *bh, handle_t *handle, int err);
-int __ext4_journal_get_undo_access(const char *where, handle_t *handle,
- struct buffer_head *bh);
+int __ext4_journal_get_undo_access(const char *where, unsigned int line,
+ handle_t *handle, struct buffer_head *bh);
-int __ext4_journal_get_write_access(const char *where, handle_t *handle,
- struct buffer_head *bh);
+int __ext4_journal_get_write_access(const char *where, unsigned int line,
+ handle_t *handle, struct buffer_head *bh);
-int __ext4_forget(const char *where, handle_t *handle, int is_metadata,
- struct inode *inode, struct buffer_head *bh,
- ext4_fsblk_t blocknr);
+int __ext4_forget(const char *where, unsigned int line, handle_t *handle,
+ int is_metadata, struct inode *inode,
+ struct buffer_head *bh, ext4_fsblk_t blocknr);
-int __ext4_journal_get_create_access(const char *where,
+int __ext4_journal_get_create_access(const char *where, unsigned int line,
handle_t *handle, struct buffer_head *bh);
-int __ext4_handle_dirty_metadata(const char *where, handle_t *handle,
- struct inode *inode, struct buffer_head *bh);
+int __ext4_handle_dirty_metadata(const char *where, unsigned int line,
+ handle_t *handle, struct inode *inode,
+ struct buffer_head *bh);
+
+int __ext4_handle_dirty_super(const char *where, unsigned int line,
+ handle_t *handle, struct super_block *sb);
#define ext4_journal_get_undo_access(handle, bh) \
- __ext4_journal_get_undo_access(__func__, (handle), (bh))
+ __ext4_journal_get_undo_access(__func__, __LINE__, (handle), (bh))
#define ext4_journal_get_write_access(handle, bh) \
- __ext4_journal_get_write_access(__func__, (handle), (bh))
+ __ext4_journal_get_write_access(__func__, __LINE__, (handle), (bh))
#define ext4_forget(handle, is_metadata, inode, bh, block_nr) \
- __ext4_forget(__func__, (handle), (is_metadata), (inode), (bh),\
- (block_nr))
+ __ext4_forget(__func__, __LINE__, (handle), (is_metadata), (inode), \
+ (bh), (block_nr))
#define ext4_journal_get_create_access(handle, bh) \
- __ext4_journal_get_create_access(__func__, (handle), (bh))
+ __ext4_journal_get_create_access(__func__, __LINE__, (handle), (bh))
#define ext4_handle_dirty_metadata(handle, inode, bh) \
- __ext4_handle_dirty_metadata(__func__, (handle), (inode), (bh))
+ __ext4_handle_dirty_metadata(__func__, __LINE__, (handle), (inode), \
+ (bh))
+#define ext4_handle_dirty_super(handle, sb) \
+ __ext4_handle_dirty_super(__func__, __LINE__, (handle), (sb))
handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks);
-int __ext4_journal_stop(const char *where, handle_t *handle);
+int __ext4_journal_stop(const char *where, unsigned int line, handle_t *handle);
#define EXT4_NOJOURNAL_MAX_REF_COUNT ((unsigned long) 4096)
@@ -207,7 +215,7 @@ static inline handle_t *ext4_journal_start(struct inode *inode, int nblocks)
}
#define ext4_journal_stop(handle) \
- __ext4_journal_stop(__func__, (handle))
+ __ext4_journal_stop(__func__, __LINE__, (handle))
static inline handle_t *ext4_journal_current_handle(void)
{
@@ -308,17 +316,15 @@ static inline int ext4_should_writeback_data(struct inode *inode)
* This function controls whether or not we should try to go down the
* dioread_nolock code paths, which makes it safe to avoid taking
* i_mutex for direct I/O reads. This only works for extent-based
- * files, and it doesn't work for nobh or if data journaling is
- * enabled, since the dioread_nolock code uses b_private to pass
- * information back to the I/O completion handler, and this conflicts
- * with the jbd's use of b_private.
+ * files, and it doesn't work if data journaling is enabled, since the
+ * dioread_nolock code uses b_private to pass information back to the
+ * I/O completion handler, and this conflicts with the jbd's use of
+ * b_private.
*/
static inline int ext4_should_dioread_nolock(struct inode *inode)
{
if (!test_opt(inode->i_sb, DIOREAD_NOLOCK))
return 0;
- if (test_opt(inode->i_sb, NOBH))
- return 0;
if (!S_ISREG(inode->i_mode))
return 0;
if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 377309c..06328d3 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -401,9 +401,9 @@ static int ext4_valid_extent_entries(struct inode *inode,
return 1;
}
-static int __ext4_ext_check(const char *function, struct inode *inode,
- struct ext4_extent_header *eh,
- int depth)
+static int __ext4_ext_check(const char *function, unsigned int line,
+ struct inode *inode, struct ext4_extent_header *eh,
+ int depth)
{
const char *error_msg;
int max = 0;
@@ -436,7 +436,7 @@ static int __ext4_ext_check(const char *function, struct inode *inode,
return 0;
corrupted:
- ext4_error_inode(function, inode,
+ ext4_error_inode(inode, function, line, 0,
"bad header/extent: %s - magic %x, "
"entries %u, max %u(%u), depth %u(%u)",
error_msg, le16_to_cpu(eh->eh_magic),
@@ -447,7 +447,7 @@ corrupted:
}
#define ext4_ext_check(inode, eh, depth) \
- __ext4_ext_check(__func__, inode, eh, depth)
+ __ext4_ext_check(__func__, __LINE__, inode, eh, depth)
int ext4_ext_check_inode(struct inode *inode)
{
@@ -1083,7 +1083,6 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
{
struct ext4_ext_path *curp = path;
struct ext4_extent_header *neh;
- struct ext4_extent_idx *fidx;
struct buffer_head *bh;
ext4_fsblk_t newblock;
int err = 0;
@@ -1144,10 +1143,10 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
ext4_idx_store_pblock(curp->p_idx, newblock);
neh = ext_inode_hdr(inode);
- fidx = EXT_FIRST_INDEX(neh);
ext_debug("new root: num %d(%d), lblock %d, ptr %llu\n",
le16_to_cpu(neh->eh_entries), le16_to_cpu(neh->eh_max),
- le32_to_cpu(fidx->ei_block), idx_pblock(fidx));
+ le32_to_cpu(EXT_FIRST_INDEX(neh)->ei_block),
+ idx_pblock(EXT_FIRST_INDEX(neh)));
neh->eh_depth = cpu_to_le16(path->p_depth + 1);
err = ext4_ext_dirty(handle, inode, curp);
@@ -2937,7 +2936,7 @@ fix_extent_len:
* One of more index blocks maybe needed if the extent tree grow after
* the unintialized extent split. To prevent ENOSPC occur at the IO
* complete, we need to split the uninitialized extent before DIO submit
- * the IO. The uninitilized extent called at this time will be split
+ * the IO. The uninitialized extent called at this time will be split
* into three uninitialized extent(at most). After IO complete, the part
* being filled will be convert to initialized by the end_io callback function
* via ext4_convert_unwritten_extents().
@@ -2954,7 +2953,6 @@ static int ext4_split_unwritten_extents(handle_t *handle,
struct ext4_extent *ex1 = NULL;
struct ext4_extent *ex2 = NULL;
struct ext4_extent *ex3 = NULL;
- struct ext4_extent_header *eh;
ext4_lblk_t ee_block, eof_block;
unsigned int allocated, ee_len, depth;
ext4_fsblk_t newblock;
@@ -2971,7 +2969,6 @@ static int ext4_split_unwritten_extents(handle_t *handle,
eof_block = map->m_lblk + map->m_len;
depth = ext_depth(inode);
- eh = path[depth].p_hdr;
ex = path[depth].p_ext;
ee_block = le32_to_cpu(ex->ee_block);
ee_len = ext4_ext_get_actual_len(ex);
@@ -3058,7 +3055,6 @@ static int ext4_split_unwritten_extents(handle_t *handle,
err = PTR_ERR(path);
goto out;
}
- eh = path[depth].p_hdr;
ex = path[depth].p_ext;
if (ex2 != &newex)
ex2 = ex;
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 5313ae4..ee92b66 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -70,7 +70,8 @@ ext4_file_write(struct kiocb *iocb, const struct iovec *iov,
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
size_t length = iov_length(iov, nr_segs);
- if (pos > sbi->s_bitmap_maxbytes)
+ if ((pos > sbi->s_bitmap_maxbytes ||
+ (pos == sbi->s_bitmap_maxbytes && length > 0)))
return -EFBIG;
if (pos + length > sbi->s_bitmap_maxbytes) {
@@ -123,7 +124,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
if (!IS_ERR(cp)) {
memcpy(sbi->s_es->s_last_mounted, cp,
sizeof(sbi->s_es->s_last_mounted));
- sb->s_dirt = 1;
+ ext4_mark_super_dirty(sb);
}
}
return dquot_file_open(inode, filp);
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 25c4b31..ac37750 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -279,7 +279,7 @@ out:
err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);
if (!fatal)
fatal = err;
- sb->s_dirt = 1;
+ ext4_mark_super_dirty(sb);
} else
ext4_error(sb, "bit already cleared for inode %lu", ino);
@@ -965,7 +965,7 @@ got:
percpu_counter_dec(&sbi->s_freeinodes_counter);
if (S_ISDIR(mode))
percpu_counter_inc(&sbi->s_dirs_counter);
- sb->s_dirt = 1;
+ ext4_mark_super_dirty(sb);
if (sbi->s_log_groups_per_flex) {
flex_group = ext4_flex_group(sbi, group);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 42272d6..a0ab375 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -221,6 +221,7 @@ void ext4_delete_inode(struct inode *inode)
"couldn't extend journal (err %d)", err);
stop_handle:
ext4_journal_stop(handle);
+ ext4_orphan_del(NULL, inode);
goto no_delete;
}
}
@@ -337,9 +338,11 @@ static int ext4_block_to_path(struct inode *inode,
return n;
}
-static int __ext4_check_blockref(const char *function, struct inode *inode,
+static int __ext4_check_blockref(const char *function, unsigned int line,
+ struct inode *inode,
__le32 *p, unsigned int max)
{
+ struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
__le32 *bref = p;
unsigned int blk;
@@ -348,8 +351,9 @@ static int __ext4_check_blockref(const char *function, struct inode *inode,
if (blk &&
unlikely(!ext4_data_block_valid(EXT4_SB(inode->i_sb),
blk, 1))) {
- ext4_error_inode(function, inode,
- "invalid block reference %u", blk);
+ es->s_last_error_block = cpu_to_le64(blk);
+ ext4_error_inode(inode, function, line, blk,
+ "invalid block");
return -EIO;
}
}
@@ -358,11 +362,13 @@ static int __ext4_check_blockref(const char *function, struct inode *inode,
#define ext4_check_indirect_blockref(inode, bh) \
- __ext4_check_blockref(__func__, inode, (__le32 *)(bh)->b_data, \
+ __ext4_check_blockref(__func__, __LINE__, inode, \
+ (__le32 *)(bh)->b_data, \
EXT4_ADDR_PER_BLOCK((inode)->i_sb))
#define ext4_check_inode_blockref(inode) \
- __ext4_check_blockref(__func__, inode, EXT4_I(inode)->i_data, \
+ __ext4_check_blockref(__func__, __LINE__, inode, \
+ EXT4_I(inode)->i_data, \
EXT4_NDIR_BLOCKS)
/**
@@ -1128,20 +1134,24 @@ void ext4_da_update_reserve_space(struct inode *inode,
ext4_discard_preallocations(inode);
}
-static int check_block_validity(struct inode *inode, const char *func,
+static int __check_block_validity(struct inode *inode, const char *func,
+ unsigned int line,
struct ext4_map_blocks *map)
{
if (!ext4_data_block_valid(EXT4_SB(inode->i_sb), map->m_pblk,
map->m_len)) {
- ext4_error_inode(func, inode,
- "lblock %lu mapped to illegal pblock %llu "
- "(length %d)", (unsigned long) map->m_lblk,
- map->m_pblk, map->m_len);
+ ext4_error_inode(inode, func, line, map->m_pblk,
+ "lblock %lu mapped to illegal pblock "
+ "(length %d)", (unsigned long) map->m_lblk,
+ map->m_len);
return -EIO;
}
return 0;
}
+#define check_block_validity(inode, map) \
+ __check_block_validity((inode), __func__, __LINE__, (map))
+
/*
* Return the number of contiguous dirty pages in a given inode
* starting at page frame idx.
@@ -1244,7 +1254,7 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
up_read((&EXT4_I(inode)->i_data_sem));
if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
- int ret = check_block_validity(inode, __func__, map);
+ int ret = check_block_validity(inode, map);
if (ret != 0)
return ret;
}
@@ -1324,9 +1334,7 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
up_write((&EXT4_I(inode)->i_data_sem));
if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
- int ret = check_block_validity(inode,
- "ext4_map_blocks_after_alloc",
- map);
+ int ret = check_block_validity(inode, map);
if (ret != 0)
return ret;
}
@@ -1519,9 +1527,25 @@ static int walk_page_buffers(handle_t *handle,
static int do_journal_get_write_access(handle_t *handle,
struct buffer_head *bh)
{
+ int dirty = buffer_dirty(bh);
+ int ret;
+
if (!buffer_mapped(bh) || buffer_freed(bh))
return 0;
- return ext4_journal_get_write_access(handle, bh);
+ /*
+ * __block_prepare_write() could have dirtied some buffers. Clean
+ * the dirty bit as jbd2_journal_get_write_access() could complain
+ * otherwise about fs integrity issues. Setting of the dirty bit
+ * by __block_prepare_write() isn't a real problem here as we clear
+ * the bit before releasing a page lock and thus writeback cannot
+ * ever write the buffer.
+ */
+ if (dirty)
+ clear_buffer_dirty(bh);
+ ret = ext4_journal_get_write_access(handle, bh);
+ if (!ret && dirty)
+ ret = ext4_handle_dirty_metadata(handle, NULL, bh);
+ return ret;
}
/*
@@ -2194,7 +2218,7 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
BUG_ON(!handle);
/*
- * Call ext4_get_blocks() to allocate any delayed allocation
+ * Call ext4_map_blocks() to allocate any delayed allocation
* blocks, or to convert an uninitialized extent to be
* initialized (in the case where we have written into
* one or more preallocated blocks).
@@ -2203,7 +2227,7 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
* indicate that we are on the delayed allocation path. This
* affects functions in many different parts of the allocation
* call path. This flag exists primarily because we don't
- * want to change *many* call functions, so ext4_get_blocks()
+ * want to change *many* call functions, so ext4_map_blocks()
* will set the magic i_delalloc_reserved_flag once the
* inode's allocation semaphore is taken.
*
@@ -2221,6 +2245,8 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
blks = ext4_map_blocks(handle, mpd->inode, &map, get_blocks_flags);
if (blks < 0) {
+ struct super_block *sb = mpd->inode->i_sb;
+
err = blks;
/*
* If get block returns with error we simply
@@ -2231,7 +2257,7 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
return 0;
if (err == -ENOSPC &&
- ext4_count_free_blocks(mpd->inode->i_sb)) {
+ ext4_count_free_blocks(sb)) {
mpd->retval = err;
return 0;
}
@@ -2243,16 +2269,17 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
* writepage and writepages will again try to write
* the same.
*/
- ext4_msg(mpd->inode->i_sb, KERN_CRIT,
- "delayed block allocation failed for inode %lu at "
- "logical offset %llu with max blocks %zd with "
- "error %d", mpd->inode->i_ino,
- (unsigned long long) next,
- mpd->b_size >> mpd->inode->i_blkbits, err);
- printk(KERN_CRIT "This should not happen!! "
- "Data will be lost\n");
- if (err == -ENOSPC) {
- ext4_print_free_blocks(mpd->inode);
+ if (!(EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED)) {
+ ext4_msg(sb, KERN_CRIT,
+ "delayed block allocation failed for inode %lu "
+ "at logical offset %llu with max blocks %zd "
+ "with error %d", mpd->inode->i_ino,
+ (unsigned long long) next,
+ mpd->b_size >> mpd->inode->i_blkbits, err);
+ ext4_msg(sb, KERN_CRIT,
+ "This should not happen!! Data will be lost\n");
+ if (err == -ENOSPC)
+ ext4_print_free_blocks(mpd->inode);
}
/* invalidate all the pages */
ext4_da_block_invalidatepages(mpd, next,
@@ -2320,7 +2347,7 @@ static void mpage_add_bh_to_extent(struct mpage_da_data *mpd,
* XXX Don't go larger than mballoc is willing to allocate
* This is a stopgap solution. We eventually need to fold
* mpage_da_submit_io() into this function and then call
- * ext4_get_blocks() multiple times in a loop
+ * ext4_map_blocks() multiple times in a loop
*/
if (nrblocks >= 8*1024*1024/mpd->inode->i_sb->s_blocksize)
goto flush_it;
@@ -2553,18 +2580,16 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
/*
* This function is used as a standard get_block_t calback function
* when there is no desire to allocate any blocks. It is used as a
- * callback function for block_prepare_write(), nobh_writepage(), and
- * block_write_full_page(). These functions should only try to map a
- * single block at a time.
+ * callback function for block_prepare_write() and block_write_full_page().
+ * These functions should only try to map a single block at a time.
*
* Since this function doesn't do block allocations even if the caller
* requests it by passing in create=1, it is critically important that
* any caller checks to make sure that any buffer heads are returned
* by this function are either all already mapped or marked for
- * delayed allocation before calling nobh_writepage() or
- * block_write_full_page(). Otherwise, b_blocknr could be left
- * unitialized, and the page write functions will be taken by
- * surprise.
+ * delayed allocation before calling block_write_full_page(). Otherwise,
+ * b_blocknr could be left unitialized, and the page write functions will
+ * be taken by surprise.
*/
static int noalloc_get_block_write(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create)
@@ -2749,9 +2774,7 @@ static int ext4_writepage(struct page *page,
return __ext4_journalled_writepage(page, len);
}
- if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
- ret = nobh_writepage(page, noalloc_get_block_write, wbc);
- else if (page_bufs && buffer_uninit(page_bufs)) {
+ if (page_bufs && buffer_uninit(page_bufs)) {
ext4_set_bh_endio(page_bufs, inode);
ret = block_write_full_page_endio(page, noalloc_get_block_write,
wbc, ext4_end_io_buffer_write);
@@ -3146,13 +3169,10 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
int ret, retries = 0;
struct page *page;
pgoff_t index;
- unsigned from, to;
struct inode *inode = mapping->host;
handle_t *handle;
index = pos >> PAGE_CACHE_SHIFT;
- from = pos & (PAGE_CACHE_SIZE - 1);
- to = from + len;
if (ext4_nonda_switch(inode->i_sb)) {
*fsdata = (void *)FALL_BACK_TO_NONDELALLOC;
@@ -3668,6 +3688,8 @@ static int ext4_end_io_nolock(ext4_io_end_t *io)
return ret;
}
+ if (io->iocb)
+ aio_complete(io->iocb, io->result, 0);
/* clear the DIO AIO unwritten flag */
io->flag = 0;
return ret;
@@ -3767,6 +3789,8 @@ static ext4_io_end_t *ext4_init_io_end (struct inode *inode, gfp_t flags)
io->offset = 0;
io->size = 0;
io->page = NULL;
+ io->iocb = NULL;
+ io->result = 0;
INIT_WORK(&io->work, ext4_end_io_work);
INIT_LIST_HEAD(&io->list);
}
@@ -3775,7 +3799,8 @@ static ext4_io_end_t *ext4_init_io_end (struct inode *inode, gfp_t flags)
}
static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
- ssize_t size, void *private)
+ ssize_t size, void *private, int ret,
+ bool is_async)
{
ext4_io_end_t *io_end = iocb->private;
struct workqueue_struct *wq;
@@ -3784,7 +3809,7 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
/* if not async direct IO or dio with 0 bytes write, just return */
if (!io_end || !size)
- return;
+ goto out;
ext_debug("ext4_end_io_dio(): io_end 0x%p"
"for inode %lu, iocb 0x%p, offset %llu, size %llu\n",
@@ -3795,12 +3820,18 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
if (io_end->flag != EXT4_IO_UNWRITTEN){
ext4_free_io_end(io_end);
iocb->private = NULL;
+out:
+ if (is_async)
+ aio_complete(iocb, ret, 0);
return;
}
io_end->offset = offset;
io_end->size = size;
- io_end->flag = EXT4_IO_UNWRITTEN;
+ if (is_async) {
+ io_end->iocb = iocb;
+ io_end->result = ret;
+ }
wq = EXT4_SB(io_end->inode->i_sb)->dio_unwritten_wq;
/* queue the work to convert unwritten extents to written */
@@ -3937,7 +3968,7 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
return -ENOMEM;
/*
* we save the io structure for current async
- * direct IO, so that later ext4_get_blocks()
+ * direct IO, so that later ext4_map_blocks()
* could flag the io structure whether there
* is a unwritten extents needs to be converted
* when IO is completed.
@@ -4128,17 +4159,6 @@ int ext4_block_truncate_page(handle_t *handle,
length = blocksize - (offset & (blocksize - 1));
iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
- /*
- * For "nobh" option, we can only work if we don't need to
- * read-in the page - otherwise we create buffers to do the IO.
- */
- if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
- ext4_should_writeback_data(inode) && PageUptodate(page)) {
- zero_user(page, offset, length);
- set_page_dirty(page);
- goto unlock;
- }
-
if (!page_has_buffers(page))
create_empty_buffers(page, blocksize, 0);
@@ -4488,9 +4508,8 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
* (should be rare).
*/
if (!bh) {
- EXT4_ERROR_INODE(inode,
- "Read failure block=%llu",
- (unsigned long long) nr);
+ EXT4_ERROR_INODE_BLOCK(inode, nr,
+ "Read failure");
continue;
}
@@ -4502,27 +4521,6 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
depth);
/*
- * We've probably journalled the indirect block several
- * times during the truncate. But it's no longer
- * needed and we now drop it from the transaction via
- * jbd2_journal_revoke().
- *
- * That's easy if it's exclusively part of this
- * transaction. But if it's part of the committing
- * transaction then jbd2_journal_forget() will simply
- * brelse() it. That means that if the underlying
- * block is reallocated in ext4_get_block(),
- * unmap_underlying_metadata() will find this block
- * and will try to get rid of it. damn, damn.
- *
- * If this block has already been committed to the
- * journal, a revoke record will be written. And
- * revoke records must be emitted *before* clearing
- * this block's bit in the bitmaps.
- */
- ext4_forget(handle, 1, inode, bh, bh->b_blocknr);
-
- /*
* Everything below this this pointer has been
* released. Now let this top-of-subtree go.
*
@@ -4546,8 +4544,20 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
blocks_for_truncate(inode));
}
+ /*
+ * The forget flag here is critical because if
+ * we are journaling (and not doing data
+ * journaling), we have to make sure a revoke
+ * record is written to prevent the journal
+ * replay from overwriting the (former)
+ * indirect block if it gets reallocated as a
+ * data block. This must happen in the same
+ * transaction where the data blocks are
+ * actually freed.
+ */
ext4_free_blocks(handle, inode, 0, nr, 1,
- EXT4_FREE_BLOCKS_METADATA);
+ EXT4_FREE_BLOCKS_METADATA|
+ EXT4_FREE_BLOCKS_FORGET);
if (parent_bh) {
/*
@@ -4805,8 +4815,8 @@ static int __ext4_get_inode_loc(struct inode *inode,
bh = sb_getblk(sb, block);
if (!bh) {
- EXT4_ERROR_INODE(inode, "unable to read inode block - "
- "block %llu", block);
+ EXT4_ERROR_INODE_BLOCK(inode, block,
+ "unable to read itable block");
return -EIO;
}
if (!buffer_uptodate(bh)) {
@@ -4904,8 +4914,8 @@ make_io:
submit_bh(READ_META, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
- EXT4_ERROR_INODE(inode, "unable to read inode "
- "block %llu", block);
+ EXT4_ERROR_INODE_BLOCK(inode, block,
+ "unable to read itable block");
brelse(bh);
return -EIO;
}
@@ -4976,7 +4986,7 @@ static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
/* we are using combined 48 bit field */
i_blocks = ((u64)le16_to_cpu(raw_inode->i_blocks_high)) << 32 |
le32_to_cpu(raw_inode->i_blocks_lo);
- if (ei->i_flags & EXT4_HUGE_FILE_FL) {
+ if (ext4_test_inode_flag(inode, EXT4_INODE_HUGE_FILE)) {
/* i_blocks represent file system block size */
return i_blocks << (inode->i_blkbits - 9);
} else {
@@ -5072,7 +5082,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
transaction_t *transaction;
tid_t tid;
- spin_lock(&journal->j_state_lock);
+ read_lock(&journal->j_state_lock);
if (journal->j_running_transaction)
transaction = journal->j_running_transaction;
else
@@ -5081,7 +5091,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
tid = transaction->t_tid;
else
tid = journal->j_commit_sequence;
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
ei->i_sync_tid = tid;
ei->i_datasync_tid = tid;
}
@@ -5126,7 +5136,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
ei->i_file_acl);
ret = -EIO;
goto bad_inode;
- } else if (ei->i_flags & EXT4_EXTENTS_FL) {
+ } else if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
(S_ISLNK(inode->i_mode) &&
!ext4_inode_is_fast_symlink(inode)))
@@ -5406,9 +5416,8 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
if (wbc->sync_mode == WB_SYNC_ALL)
sync_dirty_buffer(iloc.bh);
if (buffer_req(iloc.bh) && !buffer_uptodate(iloc.bh)) {
- EXT4_ERROR_INODE(inode,
- "IO error syncing inode (block=%llu)",
- (unsigned long long) iloc.bh->b_blocknr);
+ EXT4_ERROR_INODE_BLOCK(inode, iloc.bh->b_blocknr,
+ "IO error syncing inode");
err = -EIO;
}
brelse(iloc.bh);
@@ -5483,10 +5492,8 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) {
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
- if (attr->ia_size > sbi->s_bitmap_maxbytes) {
- error = -EFBIG;
- goto err_out;
- }
+ if (attr->ia_size > sbi->s_bitmap_maxbytes)
+ return -EFBIG;
}
}
@@ -5688,7 +5695,7 @@ int ext4_writepage_trans_blocks(struct inode *inode)
* Calculate the journal credits for a chunk of data modification.
*
* This is called from DIO, fallocate or whoever calling
- * ext4_get_blocks() to map/allocate a chunk of contiguous disk blocks.
+ * ext4_map_blocks() to map/allocate a chunk of contiguous disk blocks.
*
* journal buffers for data blocks are not included here, as DIO
* and fallocate do no need to journal data buffers.
@@ -5754,7 +5761,6 @@ static int ext4_expand_extra_isize(struct inode *inode,
{
struct ext4_inode *raw_inode;
struct ext4_xattr_ibody_header *header;
- struct ext4_xattr_entry *entry;
if (EXT4_I(inode)->i_extra_isize >= new_extra_isize)
return 0;
@@ -5762,7 +5768,6 @@ static int ext4_expand_extra_isize(struct inode *inode,
raw_inode = ext4_raw_inode(&iloc);
header = IHDR(inode, raw_inode);
- entry = IFIRST(header);
/* No extended attributes present */
if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR) ||
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 12b3bc0..4b4ad4b 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -446,10 +446,11 @@ static void mb_free_blocks_double(struct inode *inode, struct ext4_buddy *e4b,
blocknr = ext4_group_first_block_no(sb, e4b->bd_group);
blocknr += first + i;
ext4_grp_locked_error(sb, e4b->bd_group,
- __func__, "double-free of inode"
- " %lu's block %llu(bit %u in group %u)",
- inode ? inode->i_ino : 0, blocknr,
- first + i, e4b->bd_group);
+ inode ? inode->i_ino : 0,
+ blocknr,
+ "freeing block already freed "
+ "(bit %u)",
+ first + i);
}
mb_clear_bit(first + i, e4b->bd_info->bb_bitmap);
}
@@ -712,9 +713,9 @@ void ext4_mb_generate_buddy(struct super_block *sb,
grp->bb_fragments = fragments;
if (free != grp->bb_free) {
- ext4_grp_locked_error(sb, group, __func__,
- "EXT4-fs: group %u: %u blocks in bitmap, %u in gd",
- group, free, grp->bb_free);
+ ext4_grp_locked_error(sb, group, 0, 0,
+ "%u blocks in bitmap, %u in gd",
+ free, grp->bb_free);
/*
* If we intent to continue, we consider group descritor
* corrupt and update bb_free using bitmap value
@@ -1296,10 +1297,10 @@ static void mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b,
blocknr = ext4_group_first_block_no(sb, e4b->bd_group);
blocknr += block;
ext4_grp_locked_error(sb, e4b->bd_group,
- __func__, "double-free of inode"
- " %lu's block %llu(bit %u in group %u)",
- inode ? inode->i_ino : 0, blocknr, block,
- e4b->bd_group);
+ inode ? inode->i_ino : 0,
+ blocknr,
+ "freeing already freed block "
+ "(bit %u)", block);
}
mb_clear_bit(block, EXT4_MB_BITMAP(e4b));
e4b->bd_info->bb_counters[order]++;
@@ -1788,8 +1789,8 @@ void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac,
* free blocks even though group info says we
* we have free blocks
*/
- ext4_grp_locked_error(sb, e4b->bd_group,
- __func__, "%d free blocks as per "
+ ext4_grp_locked_error(sb, e4b->bd_group, 0, 0,
+ "%d free blocks as per "
"group info. But bitmap says 0",
free);
break;
@@ -1798,8 +1799,8 @@ void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac,
mb_find_extent(e4b, 0, i, ac->ac_g_ex.fe_len, &ex);
BUG_ON(ex.fe_len <= 0);
if (free < ex.fe_len) {
- ext4_grp_locked_error(sb, e4b->bd_group,
- __func__, "%d free blocks as per "
+ ext4_grp_locked_error(sb, e4b->bd_group, 0, 0,
+ "%d free blocks as per "
"group info. But got %d blocks",
free, ex.fe_len);
/*
@@ -1821,8 +1822,7 @@ void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac,
/*
* This is a special case for storages like raid5
- * we try to find stripe-aligned chunks for stripe-size requests
- * XXX should do so at least for multiples of stripe size as well
+ * we try to find stripe-aligned chunks for stripe-size-multiple requests
*/
static noinline_for_stack
void ext4_mb_scan_aligned(struct ext4_allocation_context *ac,
@@ -1999,7 +1999,6 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
ext4_group_t ngroups, group, i;
int cr;
int err = 0;
- int bsbits;
struct ext4_sb_info *sbi;
struct super_block *sb;
struct ext4_buddy e4b;
@@ -2041,8 +2040,6 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
ac->ac_2order = i - 1;
}
- bsbits = ac->ac_sb->s_blocksize_bits;
-
/* if stream allocation is enabled, use global goal */
if (ac->ac_flags & EXT4_MB_STREAM_ALLOC) {
/* TBD: may be hot point */
@@ -2094,8 +2091,8 @@ repeat:
ac->ac_groups_scanned++;
if (cr == 0)
ext4_mb_simple_scan_group(ac, &e4b);
- else if (cr == 1 &&
- ac->ac_g_ex.fe_len == sbi->s_stripe)
+ else if (cr == 1 && sbi->s_stripe &&
+ !(ac->ac_g_ex.fe_len % sbi->s_stripe))
ext4_mb_scan_aligned(ac, &e4b);
else
ext4_mb_complex_scan_group(ac, &e4b);
@@ -2221,7 +2218,7 @@ static int ext4_mb_seq_groups_open(struct inode *inode, struct file *file)
rc = seq_open(file, &ext4_mb_seq_groups_ops);
if (rc == 0) {
- struct seq_file *m = (struct seq_file *)file->private_data;
+ struct seq_file *m = file->private_data;
m->private = sb;
}
return rc;
@@ -2560,6 +2557,22 @@ int ext4_mb_release(struct super_block *sb)
return 0;
}
+static inline void ext4_issue_discard(struct super_block *sb,
+ ext4_group_t block_group, ext4_grpblk_t block, int count)
+{
+ int ret;
+ ext4_fsblk_t discard_block;
+
+ discard_block = block + ext4_group_first_block_no(sb, block_group);
+ trace_ext4_discard_blocks(sb,
+ (unsigned long long) discard_block, count);
+ ret = sb_issue_discard(sb, discard_block, count);
+ if (ret == EOPNOTSUPP) {
+ ext4_warning(sb, "discard not supported, disabling");
+ clear_opt(EXT4_SB(sb)->s_mount_opt, DISCARD);
+ }
+}
+
/*
* This function is called by the jbd2 layer once the commit has finished,
* so we know we can free the blocks that were released with that commit.
@@ -2579,22 +2592,9 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
mb_debug(1, "gonna free %u blocks in group %u (0x%p):",
entry->count, entry->group, entry);
- if (test_opt(sb, DISCARD)) {
- int ret;
- ext4_fsblk_t discard_block;
-
- discard_block = entry->start_blk +
- ext4_group_first_block_no(sb, entry->group);
- trace_ext4_discard_blocks(sb,
- (unsigned long long)discard_block,
- entry->count);
- ret = sb_issue_discard(sb, discard_block, entry->count);
- if (ret == EOPNOTSUPP) {
- ext4_warning(sb,
- "discard not supported, disabling");
- clear_opt(EXT4_SB(sb)->s_mount_opt, DISCARD);
- }
- }
+ if (test_opt(sb, DISCARD))
+ ext4_issue_discard(sb, entry->group,
+ entry->start_blk, entry->count);
err = ext4_mb_load_buddy(sb, entry->group, &e4b);
/* we expect to find existing buddy because it's pinned */
@@ -2704,7 +2704,7 @@ void exit_ext4_mballoc(void)
/*
- * Check quota and mark choosed space (ac->ac_b_ex) non-free in bitmaps
+ * Check quota and mark chosen space (ac->ac_b_ex) non-free in bitmaps
* Returns 0 if success or error code
*/
static noinline_for_stack int
@@ -2712,7 +2712,6 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
handle_t *handle, unsigned int reserv_blks)
{
struct buffer_head *bitmap_bh = NULL;
- struct ext4_super_block *es;
struct ext4_group_desc *gdp;
struct buffer_head *gdp_bh;
struct ext4_sb_info *sbi;
@@ -2725,8 +2724,6 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
sb = ac->ac_sb;
sbi = EXT4_SB(sb);
- es = sbi->s_es;
-
err = -EIO;
bitmap_bh = ext4_read_block_bitmap(sb, ac->ac_b_ex.fe_group);
@@ -2812,7 +2809,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
err = ext4_handle_dirty_metadata(handle, NULL, gdp_bh);
out_err:
- sb->s_dirt = 1;
+ ext4_mark_super_dirty(sb);
brelse(bitmap_bh);
return err;
}
@@ -2850,7 +2847,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
int bsbits, max;
ext4_lblk_t end;
loff_t size, orig_size, start_off;
- ext4_lblk_t start, orig_start;
+ ext4_lblk_t start;
struct ext4_inode_info *ei = EXT4_I(ac->ac_inode);
struct ext4_prealloc_space *pa;
@@ -2881,6 +2878,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
size = size << bsbits;
if (size < i_size_read(ac->ac_inode))
size = i_size_read(ac->ac_inode);
+ orig_size = size;
/* max size of free chunks */
max = 2 << bsbits;
@@ -2922,8 +2920,8 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
start_off = (loff_t)ac->ac_o_ex.fe_logical << bsbits;
size = ac->ac_o_ex.fe_len << bsbits;
}
- orig_size = size = size >> bsbits;
- orig_start = start = start_off >> bsbits;
+ size = size >> bsbits;
+ start = start_off >> bsbits;
/* don't cover already allocated blocks in selected range */
if (ar->pleft && start <= ar->lleft) {
@@ -3547,7 +3545,6 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
ext4_group_t group;
ext4_grpblk_t bit;
unsigned long long grp_blk_start;
- sector_t start;
int err = 0;
int free = 0;
@@ -3567,10 +3564,9 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
if (bit >= end)
break;
next = mb_find_next_bit(bitmap_bh->b_data, end, bit);
- start = ext4_group_first_block_no(sb, group) + bit;
mb_debug(1, " free preallocated %u/%u in group %u\n",
- (unsigned) start, (unsigned) next - bit,
- (unsigned) group);
+ (unsigned) ext4_group_first_block_no(sb, group) + bit,
+ (unsigned) next - bit, (unsigned) group);
free += next - bit;
if (ac) {
@@ -3581,7 +3577,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
trace_ext4_mballoc_discard(ac);
}
- trace_ext4_mb_release_inode_pa(ac, pa, grp_blk_start + bit,
+ trace_ext4_mb_release_inode_pa(sb, ac, pa, grp_blk_start + bit,
next - bit);
mb_free_blocks(pa->pa_inode, e4b, bit, next - bit);
bit = next + 1;
@@ -3591,8 +3587,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
pa, (unsigned long) pa->pa_lstart,
(unsigned long) pa->pa_pstart,
(unsigned long) pa->pa_len);
- ext4_grp_locked_error(sb, group,
- __func__, "free %u, pa_free %u",
+ ext4_grp_locked_error(sb, group, 0, 0, "free %u, pa_free %u",
free, pa->pa_free);
/*
* pa is already deleted so we use the value obtained
@@ -3613,7 +3608,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
ext4_group_t group;
ext4_grpblk_t bit;
- trace_ext4_mb_release_group_pa(ac, pa);
+ trace_ext4_mb_release_group_pa(sb, ac, pa);
BUG_ON(pa->pa_deleted == 0);
ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
@@ -3889,6 +3884,9 @@ static void ext4_mb_show_ac(struct ext4_allocation_context *ac)
struct super_block *sb = ac->ac_sb;
ext4_group_t ngroups, i;
+ if (EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED)
+ return;
+
printk(KERN_ERR "EXT4-fs: Can't allocate:"
" Allocation context details:\n");
printk(KERN_ERR "EXT4-fs: status %d flags %d\n",
@@ -4255,7 +4253,7 @@ static int ext4_mb_discard_preallocations(struct super_block *sb, int needed)
* to usual allocation
*/
ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
- struct ext4_allocation_request *ar, int *errp)
+ struct ext4_allocation_request *ar, int *errp)
{
int freed;
struct ext4_allocation_context *ac = NULL;
@@ -4299,7 +4297,7 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
inquota = ar->len;
if (ar->len == 0) {
*errp = -EDQUOT;
- goto out3;
+ goto out;
}
}
@@ -4307,13 +4305,13 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
if (!ac) {
ar->len = 0;
*errp = -ENOMEM;
- goto out1;
+ goto out;
}
*errp = ext4_mb_initialize_context(ac, ar);
if (*errp) {
ar->len = 0;
- goto out2;
+ goto out;
}
ac->ac_op = EXT4_MB_HISTORY_PREALLOC;
@@ -4322,7 +4320,9 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
ext4_mb_normalize_request(ac, ar);
repeat:
/* allocate space in core */
- ext4_mb_regular_allocator(ac);
+ *errp = ext4_mb_regular_allocator(ac);
+ if (*errp)
+ goto errout;
/* as we've just preallocated more space than
* user requested orinally, we store allocated
@@ -4333,7 +4333,7 @@ repeat:
}
if (likely(ac->ac_status == AC_STATUS_FOUND)) {
*errp = ext4_mb_mark_diskspace_used(ac, handle, reserv_blks);
- if (*errp == -EAGAIN) {
+ if (*errp == -EAGAIN) {
/*
* drop the reference that we took
* in ext4_mb_use_best_found
@@ -4344,12 +4344,10 @@ repeat:
ac->ac_b_ex.fe_len = 0;
ac->ac_status = AC_STATUS_CONTINUE;
goto repeat;
- } else if (*errp) {
+ } else if (*errp)
+ errout:
ext4_discard_allocated_blocks(ac);
- ac->ac_b_ex.fe_len = 0;
- ar->len = 0;
- ext4_mb_show_ac(ac);
- } else {
+ else {
block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex);
ar->len = ac->ac_b_ex.fe_len;
}
@@ -4358,19 +4356,19 @@ repeat:
if (freed)
goto repeat;
*errp = -ENOSPC;
+ }
+
+ if (*errp) {
ac->ac_b_ex.fe_len = 0;
ar->len = 0;
ext4_mb_show_ac(ac);
}
-
ext4_mb_release_context(ac);
-
-out2:
- kmem_cache_free(ext4_ac_cachep, ac);
-out1:
+out:
+ if (ac)
+ kmem_cache_free(ext4_ac_cachep, ac);
if (inquota && ar->len < inquota)
dquot_free_block(ar->inode, inquota - ar->len);
-out3:
if (!ar->len) {
if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag)
/* release all the reserved blocks if non delalloc */
@@ -4402,6 +4400,7 @@ static noinline_for_stack int
ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy *e4b,
struct ext4_free_data *new_entry)
{
+ ext4_group_t group = e4b->bd_group;
ext4_grpblk_t block;
struct ext4_free_data *entry;
struct ext4_group_info *db = e4b->bd_info;
@@ -4434,9 +4433,9 @@ ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy *e4b,
else if (block >= (entry->start_blk + entry->count))
n = &(*n)->rb_right;
else {
- ext4_grp_locked_error(sb, e4b->bd_group, __func__,
- "Double free of blocks %d (%d %d)",
- block, entry->start_blk, entry->count);
+ ext4_grp_locked_error(sb, group, 0,
+ ext4_group_first_block_no(sb, group) + block,
+ "Block already on to-be-freed list");
return 0;
}
}
@@ -4494,7 +4493,6 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode,
struct super_block *sb = inode->i_sb;
struct ext4_allocation_context *ac = NULL;
struct ext4_group_desc *gdp;
- struct ext4_super_block *es;
unsigned long freed = 0;
unsigned int overflow;
ext4_grpblk_t bit;
@@ -4513,7 +4511,6 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode,
}
sbi = EXT4_SB(sb);
- es = EXT4_SB(sb)->s_es;
if (!(flags & EXT4_FREE_BLOCKS_VALIDATED) &&
!ext4_data_block_valid(sbi, block, count)) {
ext4_error(sb, "Freeing blocks not in datazone - "
@@ -4647,6 +4644,8 @@ do_more:
mb_clear_bits(bitmap_bh->b_data, bit, count);
mb_free_blocks(inode, &e4b, bit, count);
ext4_mb_return_to_preallocation(inode, &e4b, block, count);
+ if (test_opt(sb, DISCARD))
+ ext4_issue_discard(sb, block_group, bit, count);
}
ret = ext4_free_blks_count(sb, gdp) + count;
@@ -4680,7 +4679,7 @@ do_more:
put_bh(bitmap_bh);
goto do_more;
}
- sb->s_dirt = 1;
+ ext4_mark_super_dirty(sb);
error_return:
if (freed)
dquot_free_block(inode, freed);
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 6f3a27e..1765c2c 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -376,7 +376,7 @@ static int ext4_ext_swap_inode_data(handle_t *handle, struct inode *inode,
* We have the extent map build with the tmp inode.
* Now copy the i_data across
*/
- ei->i_flags |= EXT4_EXTENTS_FL;
+ ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS);
memcpy(ei->i_data, tmp_ei->i_data, sizeof(ei->i_data));
/*
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 52abfa1..5f1ed9f 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -148,17 +148,17 @@ mext_next_extent(struct inode *inode, struct ext4_ext_path *path,
*/
static int
mext_check_null_inode(struct inode *inode1, struct inode *inode2,
- const char *function)
+ const char *function, unsigned int line)
{
int ret = 0;
if (inode1 == NULL) {
- __ext4_error(inode2->i_sb, function,
+ __ext4_error(inode2->i_sb, function, line,
"Both inodes should not be NULL: "
"inode1 NULL inode2 %lu", inode2->i_ino);
ret = -EIO;
} else if (inode2 == NULL) {
- __ext4_error(inode1->i_sb, function,
+ __ext4_error(inode1->i_sb, function, line,
"Both inodes should not be NULL: "
"inode1 %lu inode2 NULL", inode1->i_ino);
ret = -EIO;
@@ -1084,7 +1084,7 @@ mext_inode_double_lock(struct inode *inode1, struct inode *inode2)
BUG_ON(inode1 == NULL && inode2 == NULL);
- ret = mext_check_null_inode(inode1, inode2, __func__);
+ ret = mext_check_null_inode(inode1, inode2, __func__, __LINE__);
if (ret < 0)
goto out;
@@ -1121,7 +1121,7 @@ mext_inode_double_unlock(struct inode *inode1, struct inode *inode2)
BUG_ON(inode1 == NULL && inode2 == NULL);
- ret = mext_check_null_inode(inode1, inode2, __func__);
+ ret = mext_check_null_inode(inode1, inode2, __func__, __LINE__);
if (ret < 0)
goto out;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index a43e661..314c0d3 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -179,30 +179,6 @@ static struct buffer_head * ext4_dx_find_entry(struct inode *dir,
static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
struct inode *inode);
-unsigned int ext4_rec_len_from_disk(__le16 dlen, unsigned blocksize)
-{
- unsigned len = le16_to_cpu(dlen);
-
- if (len == EXT4_MAX_REC_LEN || len == 0)
- return blocksize;
- return (len & 65532) | ((len & 3) << 16);
-}
-
-__le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize)
-{
- if ((len > blocksize) || (blocksize > (1 << 18)) || (len & 3))
- BUG();
- if (len < 65536)
- return cpu_to_le16(len);
- if (len == blocksize) {
- if (blocksize == 65536)
- return cpu_to_le16(EXT4_MAX_REC_LEN);
- else
- return cpu_to_le16(0);
- }
- return cpu_to_le16((len & 65532) | ((len >> 16) & 3));
-}
-
/*
* p is at least 6 bytes before the end of page
*/
@@ -605,7 +581,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
dir->i_sb->s_blocksize -
EXT4_DIR_REC_LEN(0));
for (; de < top; de = ext4_next_entry(de, dir->i_sb->s_blocksize)) {
- if (!ext4_check_dir_entry("htree_dirblock_to_tree", dir, de, bh,
+ if (!ext4_check_dir_entry(dir, de, bh,
(block<<EXT4_BLOCK_SIZE_BITS(dir->i_sb))
+((char *)de - bh->b_data))) {
/* On error, skip the f_pos to the next block. */
@@ -844,8 +820,7 @@ static inline int search_dirblock(struct buffer_head *bh,
if ((char *) de + namelen <= dlimit &&
ext4_match (namelen, name, de)) {
/* found a match - just to be sure, do a full check */
- if (!ext4_check_dir_entry("ext4_find_entry",
- dir, de, bh, offset))
+ if (!ext4_check_dir_entry(dir, de, bh, offset))
return -1;
*res_dir = de;
return 1;
@@ -1019,7 +994,7 @@ static struct buffer_head * ext4_dx_find_entry(struct inode *dir, const struct q
int off = (block << EXT4_BLOCK_SIZE_BITS(sb))
+ ((char *) de - bh->b_data);
- if (!ext4_check_dir_entry(__func__, dir, de, bh, off)) {
+ if (!ext4_check_dir_entry(dir, de, bh, off)) {
brelse(bh);
*err = ERR_BAD_DX_DIR;
goto errout;
@@ -1088,7 +1063,6 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, stru
struct dentry *ext4_get_parent(struct dentry *child)
{
__u32 ino;
- struct inode *inode;
static const struct qstr dotdot = {
.name = "..",
.len = 2,
@@ -1097,7 +1071,6 @@ struct dentry *ext4_get_parent(struct dentry *child)
struct buffer_head *bh;
bh = ext4_find_entry(child->d_inode, &dotdot, &de);
- inode = NULL;
if (!bh)
return ERR_PTR(-ENOENT);
ino = le32_to_cpu(de->inode);
@@ -1305,8 +1278,7 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
de = (struct ext4_dir_entry_2 *)bh->b_data;
top = bh->b_data + blocksize - reclen;
while ((char *) de <= top) {
- if (!ext4_check_dir_entry("ext4_add_entry", dir, de,
- bh, offset))
+ if (!ext4_check_dir_entry(dir, de, bh, offset))
return -EIO;
if (ext4_match(namelen, name, de))
return -EEXIST;
@@ -1673,7 +1645,7 @@ static int ext4_delete_entry(handle_t *handle,
pde = NULL;
de = (struct ext4_dir_entry_2 *) bh->b_data;
while (i < bh->b_size) {
- if (!ext4_check_dir_entry("ext4_delete_entry", dir, de, bh, i))
+ if (!ext4_check_dir_entry(dir, de, bh, i))
return -EIO;
if (de == de_del) {
BUFFER_TRACE(bh, "get_write_access");
@@ -1956,7 +1928,7 @@ static int empty_dir(struct inode *inode)
}
de = (struct ext4_dir_entry_2 *) bh->b_data;
}
- if (!ext4_check_dir_entry("empty_dir", inode, de, bh, offset)) {
+ if (!ext4_check_dir_entry(inode, de, bh, offset)) {
de = (struct ext4_dir_entry_2 *)(bh->b_data +
sb->s_blocksize);
offset = (offset | (sb->s_blocksize - 1)) + 1;
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 6df797e..ca5c8aa 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -921,8 +921,7 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
&sbi->s_flex_groups[flex_group].free_inodes);
}
- ext4_handle_dirty_metadata(handle, NULL, sbi->s_sbh);
- sb->s_dirt = 1;
+ ext4_handle_dirty_super(handle, sb);
exit_journal:
mutex_unlock(&sbi->s_resize_lock);
@@ -953,7 +952,6 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
ext4_fsblk_t n_blocks_count)
{
ext4_fsblk_t o_blocks_count;
- ext4_group_t o_groups_count;
ext4_grpblk_t last;
ext4_grpblk_t add;
struct buffer_head *bh;
@@ -965,7 +963,6 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
* yet: we're going to revalidate es->s_blocks_count after
* taking the s_resize_lock below. */
o_blocks_count = ext4_blocks_count(es);
- o_groups_count = EXT4_SB(sb)->s_groups_count;
if (test_opt(sb, DEBUG))
printk(KERN_DEBUG "EXT4-fs: extending last group from %llu uto %llu blocks\n",
@@ -1045,13 +1042,12 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
goto exit_put;
}
ext4_blocks_count_set(es, o_blocks_count + add);
- ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
- sb->s_dirt = 1;
mutex_unlock(&EXT4_SB(sb)->s_resize_lock);
ext4_debug("freeing blocks %llu through %llu\n", o_blocks_count,
o_blocks_count + add);
/* We add the blocks to the bitmap and set the group need init bit */
ext4_add_groupblocks(handle, sb, o_blocks_count, add);
+ ext4_handle_dirty_super(handle, sb);
ext4_debug("freed blocks %llu through %llu\n", o_blocks_count,
o_blocks_count + add);
if ((err = ext4_journal_stop(handle)))
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 4e8983a..8d65575 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -241,14 +241,14 @@ handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks)
if (sb->s_flags & MS_RDONLY)
return ERR_PTR(-EROFS);
- vfs_check_frozen(sb, SB_FREEZE_WRITE);
+ vfs_check_frozen(sb, SB_FREEZE_TRANS);
/* Special case here: if the journal has aborted behind our
* backs (eg. EIO in the commit thread), then we still need to
* take the FS itself readonly cleanly. */
journal = EXT4_SB(sb)->s_journal;
if (journal) {
if (is_journal_aborted(journal)) {
- ext4_abort(sb, __func__, "Detected aborted journal");
+ ext4_abort(sb, "Detected aborted journal");
return ERR_PTR(-EROFS);
}
return jbd2_journal_start(journal, nblocks);
@@ -262,7 +262,7 @@ handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks)
* that sync() will call the filesystem's write_super callback if
* appropriate.
*/
-int __ext4_journal_stop(const char *where, handle_t *handle)
+int __ext4_journal_stop(const char *where, unsigned int line, handle_t *handle)
{
struct super_block *sb;
int err;
@@ -279,12 +279,13 @@ int __ext4_journal_stop(const char *where, handle_t *handle)
if (!err)
err = rc;
if (err)
- __ext4_std_error(sb, where, err);
+ __ext4_std_error(sb, where, line, err);
return err;
}
-void ext4_journal_abort_handle(const char *caller, const char *err_fn,
- struct buffer_head *bh, handle_t *handle, int err)
+void ext4_journal_abort_handle(const char *caller, unsigned int line,
+ const char *err_fn, struct buffer_head *bh,
+ handle_t *handle, int err)
{
char nbuf[16];
const char *errstr = ext4_decode_error(NULL, err, nbuf);
@@ -300,12 +301,47 @@ void ext4_journal_abort_handle(const char *caller, const char *err_fn,
if (is_handle_aborted(handle))
return;
- printk(KERN_ERR "%s: aborting transaction: %s in %s\n",
- caller, errstr, err_fn);
+ printk(KERN_ERR "%s:%d: aborting transaction: %s in %s\n",
+ caller, line, errstr, err_fn);
jbd2_journal_abort_handle(handle);
}
+static void __save_error_info(struct super_block *sb, const char *func,
+ unsigned int line)
+{
+ struct ext4_super_block *es = EXT4_SB(sb)->s_es;
+
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+ es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
+ es->s_last_error_time = cpu_to_le32(get_seconds());
+ strncpy(es->s_last_error_func, func, sizeof(es->s_last_error_func));
+ es->s_last_error_line = cpu_to_le32(line);
+ if (!es->s_first_error_time) {
+ es->s_first_error_time = es->s_last_error_time;
+ strncpy(es->s_first_error_func, func,
+ sizeof(es->s_first_error_func));
+ es->s_first_error_line = cpu_to_le32(line);
+ es->s_first_error_ino = es->s_last_error_ino;
+ es->s_first_error_block = es->s_last_error_block;
+ }
+ /*
+ * Start the daily error reporting function if it hasn't been
+ * started already
+ */
+ if (!es->s_error_count)
+ mod_timer(&EXT4_SB(sb)->s_err_report, jiffies + 24*60*60*HZ);
+ es->s_error_count = cpu_to_le32(le32_to_cpu(es->s_error_count) + 1);
+}
+
+static void save_error_info(struct super_block *sb, const char *func,
+ unsigned int line)
+{
+ __save_error_info(sb, func, line);
+ ext4_commit_super(sb, 1);
+}
+
+
/* Deal with the reporting of failure conditions on a filesystem such as
* inconsistencies detected or read IO failures.
*
@@ -323,11 +359,6 @@ void ext4_journal_abort_handle(const char *caller, const char *err_fn,
static void ext4_handle_error(struct super_block *sb)
{
- struct ext4_super_block *es = EXT4_SB(sb)->s_es;
-
- EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
- es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
-
if (sb->s_flags & MS_RDONLY)
return;
@@ -342,19 +373,19 @@ static void ext4_handle_error(struct super_block *sb)
ext4_msg(sb, KERN_CRIT, "Remounting filesystem read-only");
sb->s_flags |= MS_RDONLY;
}
- ext4_commit_super(sb, 1);
if (test_opt(sb, ERRORS_PANIC))
panic("EXT4-fs (device %s): panic forced after error\n",
sb->s_id);
}
void __ext4_error(struct super_block *sb, const char *function,
- const char *fmt, ...)
+ unsigned int line, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
- printk(KERN_CRIT "EXT4-fs error (device %s): %s: ", sb->s_id, function);
+ printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: comm %s: ",
+ sb->s_id, function, line, current->comm);
vprintk(fmt, args);
printk("\n");
va_end(args);
@@ -362,14 +393,22 @@ void __ext4_error(struct super_block *sb, const char *function,
ext4_handle_error(sb);
}
-void ext4_error_inode(const char *function, struct inode *inode,
+void ext4_error_inode(struct inode *inode, const char *function,
+ unsigned int line, ext4_fsblk_t block,
const char *fmt, ...)
{
va_list args;
+ struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
+ es->s_last_error_ino = cpu_to_le32(inode->i_ino);
+ es->s_last_error_block = cpu_to_le64(block);
+ save_error_info(inode->i_sb, function, line);
va_start(args, fmt);
- printk(KERN_CRIT "EXT4-fs error (device %s): %s: inode #%lu: (comm %s) ",
- inode->i_sb->s_id, function, inode->i_ino, current->comm);
+ printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: inode #%lu: ",
+ inode->i_sb->s_id, function, line, inode->i_ino);
+ if (block)
+ printk("block %llu: ", block);
+ printk("comm %s: ", current->comm);
vprintk(fmt, args);
printk("\n");
va_end(args);
@@ -377,20 +416,26 @@ void ext4_error_inode(const char *function, struct inode *inode,
ext4_handle_error(inode->i_sb);
}
-void ext4_error_file(const char *function, struct file *file,
- const char *fmt, ...)
+void ext4_error_file(struct file *file, const char *function,
+ unsigned int line, const char *fmt, ...)
{
va_list args;
+ struct ext4_super_block *es;
struct inode *inode = file->f_dentry->d_inode;
char pathname[80], *path;
+ es = EXT4_SB(inode->i_sb)->s_es;
+ es->s_last_error_ino = cpu_to_le32(inode->i_ino);
+ save_error_info(inode->i_sb, function, line);
va_start(args, fmt);
path = d_path(&(file->f_path), pathname, sizeof(pathname));
if (!path)
path = "(unknown)";
printk(KERN_CRIT
- "EXT4-fs error (device %s): %s: inode #%lu (comm %s path %s): ",
- inode->i_sb->s_id, function, inode->i_ino, current->comm, path);
+ "EXT4-fs error (device %s): %s:%d: inode #%lu "
+ "(comm %s path %s): ",
+ inode->i_sb->s_id, function, line, inode->i_ino,
+ current->comm, path);
vprintk(fmt, args);
printk("\n");
va_end(args);
@@ -435,7 +480,8 @@ static const char *ext4_decode_error(struct super_block *sb, int errno,
/* __ext4_std_error decodes expected errors from journaling functions
* automatically and invokes the appropriate error response. */
-void __ext4_std_error(struct super_block *sb, const char *function, int errno)
+void __ext4_std_error(struct super_block *sb, const char *function,
+ unsigned int line, int errno)
{
char nbuf[16];
const char *errstr;
@@ -448,8 +494,9 @@ void __ext4_std_error(struct super_block *sb, const char *function, int errno)
return;
errstr = ext4_decode_error(sb, errno, nbuf);
- printk(KERN_CRIT "EXT4-fs error (device %s) in %s: %s\n",
- sb->s_id, function, errstr);
+ printk(KERN_CRIT "EXT4-fs error (device %s) in %s:%d: %s\n",
+ sb->s_id, function, line, errstr);
+ save_error_info(sb, function, line);
ext4_handle_error(sb);
}
@@ -464,29 +511,29 @@ void __ext4_std_error(struct super_block *sb, const char *function, int errno)
* case we take the easy way out and panic immediately.
*/
-void ext4_abort(struct super_block *sb, const char *function,
- const char *fmt, ...)
+void __ext4_abort(struct super_block *sb, const char *function,
+ unsigned int line, const char *fmt, ...)
{
va_list args;
+ save_error_info(sb, function, line);
va_start(args, fmt);
- printk(KERN_CRIT "EXT4-fs error (device %s): %s: ", sb->s_id, function);
+ printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: ", sb->s_id,
+ function, line);
vprintk(fmt, args);
printk("\n");
va_end(args);
+ if ((sb->s_flags & MS_RDONLY) == 0) {
+ ext4_msg(sb, KERN_CRIT, "Remounting filesystem read-only");
+ sb->s_flags |= MS_RDONLY;
+ EXT4_SB(sb)->s_mount_flags |= EXT4_MF_FS_ABORTED;
+ if (EXT4_SB(sb)->s_journal)
+ jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
+ save_error_info(sb, function, line);
+ }
if (test_opt(sb, ERRORS_PANIC))
panic("EXT4-fs panic from previous error\n");
-
- if (sb->s_flags & MS_RDONLY)
- return;
-
- ext4_msg(sb, KERN_CRIT, "Remounting filesystem read-only");
- EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
- sb->s_flags |= MS_RDONLY;
- EXT4_SB(sb)->s_mount_flags |= EXT4_MF_FS_ABORTED;
- if (EXT4_SB(sb)->s_journal)
- jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
}
void ext4_msg (struct super_block * sb, const char *prefix,
@@ -502,38 +549,47 @@ void ext4_msg (struct super_block * sb, const char *prefix,
}
void __ext4_warning(struct super_block *sb, const char *function,
- const char *fmt, ...)
+ unsigned int line, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
- printk(KERN_WARNING "EXT4-fs warning (device %s): %s: ",
- sb->s_id, function);
+ printk(KERN_WARNING "EXT4-fs warning (device %s): %s:%d: ",
+ sb->s_id, function, line);
vprintk(fmt, args);
printk("\n");
va_end(args);
}
-void ext4_grp_locked_error(struct super_block *sb, ext4_group_t grp,
- const char *function, const char *fmt, ...)
+void __ext4_grp_locked_error(const char *function, unsigned int line,
+ struct super_block *sb, ext4_group_t grp,
+ unsigned long ino, ext4_fsblk_t block,
+ const char *fmt, ...)
__releases(bitlock)
__acquires(bitlock)
{
va_list args;
struct ext4_super_block *es = EXT4_SB(sb)->s_es;
+ es->s_last_error_ino = cpu_to_le32(ino);
+ es->s_last_error_block = cpu_to_le64(block);
+ __save_error_info(sb, function, line);
va_start(args, fmt);
- printk(KERN_CRIT "EXT4-fs error (device %s): %s: ", sb->s_id, function);
+ printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u",
+ sb->s_id, function, line, grp);
+ if (ino)
+ printk("inode %lu: ", ino);
+ if (block)
+ printk("block %llu:", (unsigned long long) block);
vprintk(fmt, args);
printk("\n");
va_end(args);
if (test_opt(sb, ERRORS_CONT)) {
- EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
- es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
ext4_commit_super(sb, 0);
return;
}
+
ext4_unlock_group(sb, grp);
ext4_handle_error(sb);
/*
@@ -660,8 +716,7 @@ static void ext4_put_super(struct super_block *sb)
err = jbd2_journal_destroy(sbi->s_journal);
sbi->s_journal = NULL;
if (err < 0)
- ext4_abort(sb, __func__,
- "Couldn't clean up the journal");
+ ext4_abort(sb, "Couldn't clean up the journal");
}
ext4_release_system_zone(sb);
@@ -946,14 +1001,12 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
seq_puts(seq, ",journal_async_commit");
else if (test_opt(sb, JOURNAL_CHECKSUM))
seq_puts(seq, ",journal_checksum");
- if (test_opt(sb, NOBH))
- seq_puts(seq, ",nobh");
if (test_opt(sb, I_VERSION))
seq_puts(seq, ",i_version");
- if (!test_opt(sb, DELALLOC))
+ if (!test_opt(sb, DELALLOC) &&
+ !(def_mount_opts & EXT4_DEFM_NODELALLOC))
seq_puts(seq, ",nodelalloc");
-
if (sbi->s_stripe)
seq_printf(seq, ",stripe=%lu", sbi->s_stripe);
/*
@@ -977,7 +1030,7 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
if (test_opt(sb, NO_AUTO_DA_ALLOC))
seq_puts(seq, ",noauto_da_alloc");
- if (test_opt(sb, DISCARD))
+ if (test_opt(sb, DISCARD) && !(def_mount_opts & EXT4_DEFM_DISCARD))
seq_puts(seq, ",discard");
if (test_opt(sb, NOLOAD))
@@ -986,6 +1039,10 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
if (test_opt(sb, DIOREAD_NOLOCK))
seq_puts(seq, ",dioread_nolock");
+ if (test_opt(sb, BLOCK_VALIDITY) &&
+ !(def_mount_opts & EXT4_DEFM_BLOCK_VALIDITY))
+ seq_puts(seq, ",block_validity");
+
ext4_show_quota_options(seq, sb);
return 0;
@@ -1065,6 +1122,7 @@ static int ext4_mark_dquot_dirty(struct dquot *dquot);
static int ext4_write_info(struct super_block *sb, int type);
static int ext4_quota_on(struct super_block *sb, int type, int format_id,
char *path);
+static int ext4_quota_off(struct super_block *sb, int type);
static int ext4_quota_on_mount(struct super_block *sb, int type);
static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
size_t len, loff_t off);
@@ -1086,7 +1144,7 @@ static const struct dquot_operations ext4_quota_operations = {
static const struct quotactl_ops ext4_qctl_operations = {
.quota_on = ext4_quota_on,
- .quota_off = dquot_quota_off,
+ .quota_off = ext4_quota_off,
.quota_sync = dquot_quota_sync,
.get_info = dquot_get_dqinfo,
.set_info = dquot_set_dqinfo,
@@ -1624,10 +1682,12 @@ set_qf_format:
*n_blocks_count = option;
break;
case Opt_nobh:
- set_opt(sbi->s_mount_opt, NOBH);
+ ext4_msg(sb, KERN_WARNING,
+ "Ignoring deprecated nobh option");
break;
case Opt_bh:
- clear_opt(sbi->s_mount_opt, NOBH);
+ ext4_msg(sb, KERN_WARNING,
+ "Ignoring deprecated bh option");
break;
case Opt_i_version:
set_opt(sbi->s_mount_opt, I_VERSION);
@@ -2249,6 +2309,8 @@ static ssize_t session_write_kbytes_show(struct ext4_attr *a,
{
struct super_block *sb = sbi->s_buddy_cache->i_sb;
+ if (!sb->s_bdev->bd_part)
+ return snprintf(buf, PAGE_SIZE, "0\n");
return snprintf(buf, PAGE_SIZE, "%lu\n",
(part_stat_read(sb->s_bdev->bd_part, sectors[1]) -
sbi->s_sectors_written_start) >> 1);
@@ -2259,6 +2321,8 @@ static ssize_t lifetime_write_kbytes_show(struct ext4_attr *a,
{
struct super_block *sb = sbi->s_buddy_cache->i_sb;
+ if (!sb->s_bdev->bd_part)
+ return snprintf(buf, PAGE_SIZE, "0\n");
return snprintf(buf, PAGE_SIZE, "%llu\n",
(unsigned long long)(sbi->s_kbytes_written +
((part_stat_read(sb->s_bdev->bd_part, sectors[1]) -
@@ -2431,6 +2495,53 @@ static int ext4_feature_set_ok(struct super_block *sb, int readonly)
return 1;
}
+/*
+ * This function is called once a day if we have errors logged
+ * on the file system
+ */
+static void print_daily_error_info(unsigned long arg)
+{
+ struct super_block *sb = (struct super_block *) arg;
+ struct ext4_sb_info *sbi;
+ struct ext4_super_block *es;
+
+ sbi = EXT4_SB(sb);
+ es = sbi->s_es;
+
+ if (es->s_error_count)
+ ext4_msg(sb, KERN_NOTICE, "error count: %u",
+ le32_to_cpu(es->s_error_count));
+ if (es->s_first_error_time) {
+ printk(KERN_NOTICE "EXT4-fs (%s): initial error at %u: %.*s:%d",
+ sb->s_id, le32_to_cpu(es->s_first_error_time),
+ (int) sizeof(es->s_first_error_func),
+ es->s_first_error_func,
+ le32_to_cpu(es->s_first_error_line));
+ if (es->s_first_error_ino)
+ printk(": inode %u",
+ le32_to_cpu(es->s_first_error_ino));
+ if (es->s_first_error_block)
+ printk(": block %llu", (unsigned long long)
+ le64_to_cpu(es->s_first_error_block));
+ printk("\n");
+ }
+ if (es->s_last_error_time) {
+ printk(KERN_NOTICE "EXT4-fs (%s): last error at %u: %.*s:%d",
+ sb->s_id, le32_to_cpu(es->s_last_error_time),
+ (int) sizeof(es->s_last_error_func),
+ es->s_last_error_func,
+ le32_to_cpu(es->s_last_error_line));
+ if (es->s_last_error_ino)
+ printk(": inode %u",
+ le32_to_cpu(es->s_last_error_ino));
+ if (es->s_last_error_block)
+ printk(": block %llu", (unsigned long long)
+ le64_to_cpu(es->s_last_error_block));
+ printk("\n");
+ }
+ mod_timer(&sbi->s_err_report, jiffies + 24*60*60*HZ); /* Once a day */
+}
+
static int ext4_fill_super(struct super_block *sb, void *data, int silent)
__releases(kernel_lock)
__acquires(kernel_lock)
@@ -2448,7 +2559,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
struct inode *root;
char *cp;
const char *descr;
- int ret = -EINVAL;
+ int ret = -ENOMEM;
int blocksize;
unsigned int db_count;
unsigned int i;
@@ -2459,13 +2570,13 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
if (!sbi)
- return -ENOMEM;
+ goto out_free_orig;
sbi->s_blockgroup_lock =
kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL);
if (!sbi->s_blockgroup_lock) {
kfree(sbi);
- return -ENOMEM;
+ goto out_free_orig;
}
sb->s_fs_info = sbi;
sbi->s_mount_opt = 0;
@@ -2473,8 +2584,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_resgid = EXT4_DEF_RESGID;
sbi->s_inode_readahead_blks = EXT4_DEF_INODE_READAHEAD_BLKS;
sbi->s_sb_block = sb_block;
- sbi->s_sectors_written_start = part_stat_read(sb->s_bdev->bd_part,
- sectors[1]);
+ if (sb->s_bdev->bd_part)
+ sbi->s_sectors_written_start =
+ part_stat_read(sb->s_bdev->bd_part, sectors[1]);
unlock_kernel();
@@ -2482,6 +2594,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
for (cp = sb->s_id; (cp = strchr(cp, '/'));)
*cp = '!';
+ ret = -EINVAL;
blocksize = sb_min_blocksize(sb, EXT4_MIN_BLOCK_SIZE);
if (!blocksize) {
ext4_msg(sb, KERN_ERR, "unable to set blocksize");
@@ -2546,6 +2659,10 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
set_opt(sbi->s_mount_opt, ERRORS_CONT);
else
set_opt(sbi->s_mount_opt, ERRORS_RO);
+ if (def_mount_opts & EXT4_DEFM_BLOCK_VALIDITY)
+ set_opt(sbi->s_mount_opt, BLOCK_VALIDITY);
+ if (def_mount_opts & EXT4_DEFM_DISCARD)
+ set_opt(sbi->s_mount_opt, DISCARD);
sbi->s_resuid = le16_to_cpu(es->s_def_resuid);
sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
@@ -2553,15 +2670,23 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_min_batch_time = EXT4_DEF_MIN_BATCH_TIME;
sbi->s_max_batch_time = EXT4_DEF_MAX_BATCH_TIME;
- set_opt(sbi->s_mount_opt, BARRIER);
+ if ((def_mount_opts & EXT4_DEFM_NOBARRIER) == 0)
+ set_opt(sbi->s_mount_opt, BARRIER);
/*
* enable delayed allocation by default
* Use -o nodelalloc to turn it off
*/
- if (!IS_EXT3_SB(sb))
+ if (!IS_EXT3_SB(sb) &&
+ ((def_mount_opts & EXT4_DEFM_NODELALLOC) == 0))
set_opt(sbi->s_mount_opt, DELALLOC);
+ if (!parse_options((char *) sbi->s_es->s_mount_opts, sb,
+ &journal_devnum, &journal_ioprio, NULL, 0)) {
+ ext4_msg(sb, KERN_WARNING,
+ "failed to parse options in superblock: %s",
+ sbi->s_es->s_mount_opts);
+ }
if (!parse_options((char *) data, sb, &journal_devnum,
&journal_ioprio, NULL, 0))
goto failed_mount;
@@ -2912,18 +3037,7 @@ no_journal:
ext4_msg(sb, KERN_ERR, "insufficient memory");
goto failed_mount_wq;
}
- if (test_opt(sb, NOBH)) {
- if (!(test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)) {
- ext4_msg(sb, KERN_WARNING, "Ignoring nobh option - "
- "its supported only with writeback mode");
- clear_opt(sbi->s_mount_opt, NOBH);
- }
- if (test_opt(sb, DIOREAD_NOLOCK)) {
- ext4_msg(sb, KERN_WARNING, "dioread_nolock option is "
- "not supported with nobh mode");
- goto failed_mount_wq;
- }
- }
+
EXT4_SB(sb)->dio_unwritten_wq = create_workqueue("ext4-dio-unwritten");
if (!EXT4_SB(sb)->dio_unwritten_wq) {
printk(KERN_ERR "EXT4-fs: failed to create DIO workqueue\n");
@@ -3010,7 +3124,7 @@ no_journal:
ext4_ext_init(sb);
err = ext4_mb_init(sb, needs_recovery);
if (err) {
- ext4_msg(sb, KERN_ERR, "failed to initalize mballoc (%d)",
+ ext4_msg(sb, KERN_ERR, "failed to initialize mballoc (%d)",
err);
goto failed_mount4;
}
@@ -3043,7 +3157,14 @@ no_journal:
descr = "out journal";
ext4_msg(sb, KERN_INFO, "mounted filesystem with%s. "
- "Opts: %s", descr, orig_data);
+ "Opts: %s%s%s", descr, sbi->s_es->s_mount_opts,
+ *sbi->s_es->s_mount_opts ? "; " : "", orig_data);
+
+ init_timer(&sbi->s_err_report);
+ sbi->s_err_report.function = print_daily_error_info;
+ sbi->s_err_report.data = (unsigned long) sb;
+ if (es->s_error_count)
+ mod_timer(&sbi->s_err_report, jiffies + 300*HZ); /* 5 minutes */
lock_kernel();
kfree(orig_data);
@@ -3093,6 +3214,7 @@ out_fail:
kfree(sbi->s_blockgroup_lock);
kfree(sbi);
lock_kernel();
+out_free_orig:
kfree(orig_data);
return ret;
}
@@ -3110,7 +3232,7 @@ static void ext4_init_journal_params(struct super_block *sb, journal_t *journal)
journal->j_min_batch_time = sbi->s_min_batch_time;
journal->j_max_batch_time = sbi->s_max_batch_time;
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
if (test_opt(sb, BARRIER))
journal->j_flags |= JBD2_BARRIER;
else
@@ -3119,7 +3241,7 @@ static void ext4_init_journal_params(struct super_block *sb, journal_t *journal)
journal->j_flags |= JBD2_ABORT_ON_SYNCDATA_ERR;
else
journal->j_flags &= ~JBD2_ABORT_ON_SYNCDATA_ERR;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
}
static journal_t *ext4_get_journal(struct super_block *sb,
@@ -3327,8 +3449,17 @@ static int ext4_load_journal(struct super_block *sb,
if (!EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER))
err = jbd2_journal_wipe(journal, !really_read_only);
- if (!err)
+ if (!err) {
+ char *save = kmalloc(EXT4_S_ERR_LEN, GFP_KERNEL);
+ if (save)
+ memcpy(save, ((char *) es) +
+ EXT4_S_ERR_START, EXT4_S_ERR_LEN);
err = jbd2_journal_load(journal);
+ if (save)
+ memcpy(((char *) es) + EXT4_S_ERR_START,
+ save, EXT4_S_ERR_LEN);
+ kfree(save);
+ }
if (err) {
ext4_msg(sb, KERN_ERR, "error loading journal");
@@ -3384,10 +3515,14 @@ static int ext4_commit_super(struct super_block *sb, int sync)
*/
if (!(sb->s_flags & MS_RDONLY))
es->s_wtime = cpu_to_le32(get_seconds());
- es->s_kbytes_written =
- cpu_to_le64(EXT4_SB(sb)->s_kbytes_written +
+ if (sb->s_bdev->bd_part)
+ es->s_kbytes_written =
+ cpu_to_le64(EXT4_SB(sb)->s_kbytes_written +
((part_stat_read(sb->s_bdev->bd_part, sectors[1]) -
EXT4_SB(sb)->s_sectors_written_start) >> 1));
+ else
+ es->s_kbytes_written =
+ cpu_to_le64(EXT4_SB(sb)->s_kbytes_written);
ext4_free_blocks_count_set(es, percpu_counter_sum_positive(
&EXT4_SB(sb)->s_freeblocks_counter));
es->s_free_inodes_count = cpu_to_le32(percpu_counter_sum_positive(
@@ -3491,7 +3626,7 @@ int ext4_force_commit(struct super_block *sb)
journal = EXT4_SB(sb)->s_journal;
if (journal) {
- vfs_check_frozen(sb, SB_FREEZE_WRITE);
+ vfs_check_frozen(sb, SB_FREEZE_TRANS);
ret = ext4_journal_force_commit(journal);
}
@@ -3616,7 +3751,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
}
if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED)
- ext4_abort(sb, __func__, "Abort forced by user");
+ ext4_abort(sb, "Abort forced by user");
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
(test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
@@ -3981,6 +4116,18 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
return err;
}
+static int ext4_quota_off(struct super_block *sb, int type)
+{
+ /* Force all delayed allocation blocks to be allocated */
+ if (test_opt(sb, DELALLOC)) {
+ down_read(&sb->s_umount);
+ sync_filesystem(sb);
+ up_read(&sb->s_umount);
+ }
+
+ return dquot_quota_off(sb, type);
+}
+
/* Read data from quotafile - avoid pagecache and such because we cannot afford
* acquiring the locks... As quota files are never truncated and quota code
* itself serializes the operations (and noone else should touch the files)
@@ -4030,7 +4177,6 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb);
int err = 0;
int offset = off & (sb->s_blocksize - 1);
- int journal_quota = EXT4_SB(sb)->s_qf_names[type] != NULL;
struct buffer_head *bh;
handle_t *handle = journal_current_handle();
@@ -4055,24 +4201,16 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
bh = ext4_bread(handle, inode, blk, 1, &err);
if (!bh)
goto out;
- if (journal_quota) {
- err = ext4_journal_get_write_access(handle, bh);
- if (err) {
- brelse(bh);
- goto out;
- }
+ err = ext4_journal_get_write_access(handle, bh);
+ if (err) {
+ brelse(bh);
+ goto out;
}
lock_buffer(bh);
memcpy(bh->b_data+offset, data, len);
flush_dcache_page(bh->b_page);
unlock_buffer(bh);
- if (journal_quota)
- err = ext4_handle_dirty_metadata(handle, NULL, bh);
- else {
- /* Always do at least ordered writes for quotas */
- err = ext4_jbd2_file_inode(handle, inode);
- mark_buffer_dirty(bh);
- }
+ err = ext4_handle_dirty_metadata(handle, NULL, bh);
brelse(bh);
out:
if (err) {
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 0433800..a6f3142 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -458,8 +458,7 @@ static void ext4_xattr_update_super_block(handle_t *handle,
if (ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh) == 0) {
EXT4_SET_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR);
- sb->s_dirt = 1;
- ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
+ ext4_handle_dirty_super(handle, sb);
}
}
diff --git a/fs/file.c b/fs/file.c
index 34bb7f7..cccaead 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -178,7 +178,6 @@ static struct fdtable * alloc_fdtable(unsigned int nr)
fdt->open_fds = (fd_set *)data;
data += nr / BITS_PER_BYTE;
fdt->close_on_exec = (fd_set *)data;
- INIT_RCU_HEAD(&fdt->rcu);
fdt->next = NULL;
return fdt;
@@ -312,7 +311,6 @@ struct files_struct *dup_fd(struct files_struct *oldf, int *errorp)
new_fdt->close_on_exec = (fd_set *)&newf->close_on_exec_init;
new_fdt->open_fds = (fd_set *)&newf->open_fds_init;
new_fdt->fd = &newf->fd_array[0];
- INIT_RCU_HEAD(&new_fdt->rcu);
new_fdt->next = NULL;
spin_lock(&oldf->file_lock);
@@ -430,7 +428,6 @@ struct files_struct init_files = {
.fd = &init_files.fd_array[0],
.close_on_exec = (fd_set *)&init_files.close_on_exec_init,
.open_fds = (fd_set *)&init_files.open_fds_init,
- .rcu = RCU_HEAD_INIT,
},
.file_lock = __SPIN_LOCK_UNLOCKED(init_task.file_lock),
};
diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c
index 1e8af93..5132c99 100644
--- a/fs/freevxfs/vxfs_super.c
+++ b/fs/freevxfs/vxfs_super.c
@@ -135,7 +135,7 @@ static int vxfs_remount(struct super_block *sb, int *flags, char *data)
}
/**
- * vxfs_read_super - read superblock into memory and initalize filesystem
+ * vxfs_read_super - read superblock into memory and initialize filesystem
* @sbp: VFS superblock (to fill)
* @dp: fs private mount data
* @silent: do not complain loudly when sth is wrong
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 0609607..d5be169 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -38,43 +38,18 @@ int nr_pdflush_threads;
/*
* Passed into wb_writeback(), essentially a subset of writeback_control
*/
-struct wb_writeback_args {
+struct wb_writeback_work {
long nr_pages;
struct super_block *sb;
enum writeback_sync_modes sync_mode;
unsigned int for_kupdate:1;
unsigned int range_cyclic:1;
unsigned int for_background:1;
-};
-/*
- * Work items for the bdi_writeback threads
- */
-struct bdi_work {
struct list_head list; /* pending work list */
- struct rcu_head rcu_head; /* for RCU free/clear of work */
-
- unsigned long seen; /* threads that have seen this work */
- atomic_t pending; /* number of threads still to do work */
-
- struct wb_writeback_args args; /* writeback arguments */
-
- unsigned long state; /* flag bits, see WS_* */
+ struct completion *done; /* set if the caller waits */
};
-enum {
- WS_INPROGRESS = 0,
- WS_ONSTACK,
-};
-
-static inline void bdi_work_init(struct bdi_work *work,
- struct wb_writeback_args *args)
-{
- INIT_RCU_HEAD(&work->rcu_head);
- work->args = *args;
- __set_bit(WS_INPROGRESS, &work->state);
-}
-
/**
* writeback_in_progress - determine whether there is writeback in progress
* @bdi: the device's backing_dev_info structure.
@@ -87,49 +62,11 @@ int writeback_in_progress(struct backing_dev_info *bdi)
return !list_empty(&bdi->work_list);
}
-static void bdi_work_free(struct rcu_head *head)
-{
- struct bdi_work *work = container_of(head, struct bdi_work, rcu_head);
-
- clear_bit(WS_INPROGRESS, &work->state);
- smp_mb__after_clear_bit();
- wake_up_bit(&work->state, WS_INPROGRESS);
-
- if (!test_bit(WS_ONSTACK, &work->state))
- kfree(work);
-}
-
-static void wb_clear_pending(struct bdi_writeback *wb, struct bdi_work *work)
+static void bdi_queue_work(struct backing_dev_info *bdi,
+ struct wb_writeback_work *work)
{
- /*
- * The caller has retrieved the work arguments from this work,
- * drop our reference. If this is the last ref, delete and free it
- */
- if (atomic_dec_and_test(&work->pending)) {
- struct backing_dev_info *bdi = wb->bdi;
-
- spin_lock(&bdi->wb_lock);
- list_del_rcu(&work->list);
- spin_unlock(&bdi->wb_lock);
-
- call_rcu(&work->rcu_head, bdi_work_free);
- }
-}
-
-static void bdi_queue_work(struct backing_dev_info *bdi, struct bdi_work *work)
-{
- work->seen = bdi->wb_mask;
- BUG_ON(!work->seen);
- atomic_set(&work->pending, bdi->wb_cnt);
- BUG_ON(!bdi->wb_cnt);
-
- /*
- * list_add_tail_rcu() contains the necessary barriers to
- * make sure the above stores are seen before the item is
- * noticed on the list
- */
spin_lock(&bdi->wb_lock);
- list_add_tail_rcu(&work->list, &bdi->work_list);
+ list_add_tail(&work->list, &bdi->work_list);
spin_unlock(&bdi->wb_lock);
/*
@@ -146,55 +83,29 @@ static void bdi_queue_work(struct backing_dev_info *bdi, struct bdi_work *work)
}
}
-/*
- * Used for on-stack allocated work items. The caller needs to wait until
- * the wb threads have acked the work before it's safe to continue.
- */
-static void bdi_wait_on_work_done(struct bdi_work *work)
+static void
+__bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages,
+ bool range_cyclic, bool for_background)
{
- wait_on_bit(&work->state, WS_INPROGRESS, bdi_sched_wait,
- TASK_UNINTERRUPTIBLE);
-}
-
-static void bdi_alloc_queue_work(struct backing_dev_info *bdi,
- struct wb_writeback_args *args)
-{
- struct bdi_work *work;
+ struct wb_writeback_work *work;
/*
* This is WB_SYNC_NONE writeback, so if allocation fails just
* wakeup the thread for old dirty data writeback
*/
- work = kmalloc(sizeof(*work), GFP_ATOMIC);
- if (work) {
- bdi_work_init(work, args);
- bdi_queue_work(bdi, work);
- } else {
- struct bdi_writeback *wb = &bdi->wb;
-
- if (wb->task)
- wake_up_process(wb->task);
+ work = kzalloc(sizeof(*work), GFP_ATOMIC);
+ if (!work) {
+ if (bdi->wb.task)
+ wake_up_process(bdi->wb.task);
+ return;
}
-}
-/**
- * bdi_queue_work_onstack - start and wait for writeback
- * @sb: write inodes from this super_block
- *
- * Description:
- * This function initiates writeback and waits for the operation to
- * complete. Callers must hold the sb s_umount semaphore for
- * reading, to avoid having the super disappear before we are done.
- */
-static void bdi_queue_work_onstack(struct wb_writeback_args *args)
-{
- struct bdi_work work;
-
- bdi_work_init(&work, args);
- __set_bit(WS_ONSTACK, &work.state);
+ work->sync_mode = WB_SYNC_NONE;
+ work->nr_pages = nr_pages;
+ work->range_cyclic = range_cyclic;
+ work->for_background = for_background;
- bdi_queue_work(args->sb->s_bdi, &work);
- bdi_wait_on_work_done(&work);
+ bdi_queue_work(bdi, work);
}
/**
@@ -210,13 +121,7 @@ static void bdi_queue_work_onstack(struct wb_writeback_args *args)
*/
void bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages)
{
- struct wb_writeback_args args = {
- .sync_mode = WB_SYNC_NONE,
- .nr_pages = nr_pages,
- .range_cyclic = 1,
- };
-
- bdi_alloc_queue_work(bdi, &args);
+ __bdi_start_writeback(bdi, nr_pages, true, false);
}
/**
@@ -230,13 +135,7 @@ void bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages)
*/
void bdi_start_background_writeback(struct backing_dev_info *bdi)
{
- struct wb_writeback_args args = {
- .sync_mode = WB_SYNC_NONE,
- .nr_pages = LONG_MAX,
- .for_background = 1,
- .range_cyclic = 1,
- };
- bdi_alloc_queue_work(bdi, &args);
+ __bdi_start_writeback(bdi, LONG_MAX, true, true);
}
/*
@@ -554,29 +453,41 @@ static bool pin_sb_for_writeback(struct super_block *sb)
/*
* Write a portion of b_io inodes which belong to @sb.
- * If @wbc->sb != NULL, then find and write all such
+ *
+ * If @only_this_sb is true, then find and write all such
* inodes. Otherwise write only ones which go sequentially
* in reverse order.
+ *
* Return 1, if the caller writeback routine should be
* interrupted. Otherwise return 0.
*/
-static int writeback_sb_inodes(struct super_block *sb,
- struct bdi_writeback *wb,
- struct writeback_control *wbc)
+static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb,
+ struct writeback_control *wbc, bool only_this_sb)
{
while (!list_empty(&wb->b_io)) {
long pages_skipped;
struct inode *inode = list_entry(wb->b_io.prev,
struct inode, i_list);
- if (wbc->sb && sb != inode->i_sb) {
- /* super block given and doesn't
- match, skip this inode */
- redirty_tail(inode);
- continue;
- }
- if (sb != inode->i_sb)
- /* finish with this superblock */
+
+ if (inode->i_sb != sb) {
+ if (only_this_sb) {
+ /*
+ * We only want to write back data for this
+ * superblock, move all inodes not belonging
+ * to it back onto the dirty list.
+ */
+ redirty_tail(inode);
+ continue;
+ }
+
+ /*
+ * The inode belongs to a different superblock.
+ * Bounce back to the caller to unpin this and
+ * pin the next superblock.
+ */
return 0;
+ }
+
if (inode->i_state & (I_NEW | I_WILL_FREE)) {
requeue_io(inode);
continue;
@@ -614,8 +525,8 @@ static int writeback_sb_inodes(struct super_block *sb,
return 1;
}
-static void writeback_inodes_wb(struct bdi_writeback *wb,
- struct writeback_control *wbc)
+void writeback_inodes_wb(struct bdi_writeback *wb,
+ struct writeback_control *wbc)
{
int ret = 0;
@@ -629,29 +540,12 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
struct inode, i_list);
struct super_block *sb = inode->i_sb;
- if (wbc->sb) {
- /*
- * We are requested to write out inodes for a specific
- * superblock. This means we already have s_umount
- * taken by the caller which also waits for us to
- * complete the writeout.
- */
- if (sb != wbc->sb) {
- redirty_tail(inode);
- continue;
- }
-
- WARN_ON(!rwsem_is_locked(&sb->s_umount));
-
- ret = writeback_sb_inodes(sb, wb, wbc);
- } else {
- if (!pin_sb_for_writeback(sb)) {
- requeue_io(inode);
- continue;
- }
- ret = writeback_sb_inodes(sb, wb, wbc);
- drop_super(sb);
+ if (!pin_sb_for_writeback(sb)) {
+ requeue_io(inode);
+ continue;
}
+ ret = writeback_sb_inodes(sb, wb, wbc, false);
+ drop_super(sb);
if (ret)
break;
@@ -660,11 +554,17 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
/* Leave any unwritten inodes on b_io */
}
-void writeback_inodes_wbc(struct writeback_control *wbc)
+static void __writeback_inodes_sb(struct super_block *sb,
+ struct bdi_writeback *wb, struct writeback_control *wbc)
{
- struct backing_dev_info *bdi = wbc->bdi;
+ WARN_ON(!rwsem_is_locked(&sb->s_umount));
- writeback_inodes_wb(&bdi->wb, wbc);
+ wbc->wb_start = jiffies; /* livelock avoidance */
+ spin_lock(&inode_lock);
+ if (!wbc->for_kupdate || list_empty(&wb->b_io))
+ queue_io(wb, wbc->older_than_this);
+ writeback_sb_inodes(sb, wb, wbc, true);
+ spin_unlock(&inode_lock);
}
/*
@@ -702,16 +602,14 @@ static inline bool over_bground_thresh(void)
* all dirty pages if they are all attached to "old" mappings.
*/
static long wb_writeback(struct bdi_writeback *wb,
- struct wb_writeback_args *args)
+ struct wb_writeback_work *work)
{
struct writeback_control wbc = {
- .bdi = wb->bdi,
- .sb = args->sb,
- .sync_mode = args->sync_mode,
+ .sync_mode = work->sync_mode,
.older_than_this = NULL,
- .for_kupdate = args->for_kupdate,
- .for_background = args->for_background,
- .range_cyclic = args->range_cyclic,
+ .for_kupdate = work->for_kupdate,
+ .for_background = work->for_background,
+ .range_cyclic = work->range_cyclic,
};
unsigned long oldest_jif;
long wrote = 0;
@@ -731,21 +629,24 @@ static long wb_writeback(struct bdi_writeback *wb,
/*
* Stop writeback when nr_pages has been consumed
*/
- if (args->nr_pages <= 0)
+ if (work->nr_pages <= 0)
break;
/*
* For background writeout, stop when we are below the
* background dirty threshold
*/
- if (args->for_background && !over_bground_thresh())
+ if (work->for_background && !over_bground_thresh())
break;
wbc.more_io = 0;
wbc.nr_to_write = MAX_WRITEBACK_PAGES;
wbc.pages_skipped = 0;
- writeback_inodes_wb(wb, &wbc);
- args->nr_pages -= MAX_WRITEBACK_PAGES - wbc.nr_to_write;
+ if (work->sb)
+ __writeback_inodes_sb(work->sb, wb, &wbc);
+ else
+ writeback_inodes_wb(wb, &wbc);
+ work->nr_pages -= MAX_WRITEBACK_PAGES - wbc.nr_to_write;
wrote += MAX_WRITEBACK_PAGES - wbc.nr_to_write;
/*
@@ -781,31 +682,21 @@ static long wb_writeback(struct bdi_writeback *wb,
}
/*
- * Return the next bdi_work struct that hasn't been processed by this
- * wb thread yet. ->seen is initially set for each thread that exists
- * for this device, when a thread first notices a piece of work it
- * clears its bit. Depending on writeback type, the thread will notify
- * completion on either receiving the work (WB_SYNC_NONE) or after
- * it is done (WB_SYNC_ALL).
+ * Return the next wb_writeback_work struct that hasn't been processed yet.
*/
-static struct bdi_work *get_next_work_item(struct backing_dev_info *bdi,
- struct bdi_writeback *wb)
+static struct wb_writeback_work *
+get_next_work_item(struct backing_dev_info *bdi, struct bdi_writeback *wb)
{
- struct bdi_work *work, *ret = NULL;
-
- rcu_read_lock();
+ struct wb_writeback_work *work = NULL;
- list_for_each_entry_rcu(work, &bdi->work_list, list) {
- if (!test_bit(wb->nr, &work->seen))
- continue;
- clear_bit(wb->nr, &work->seen);
-
- ret = work;
- break;
+ spin_lock(&bdi->wb_lock);
+ if (!list_empty(&bdi->work_list)) {
+ work = list_entry(bdi->work_list.next,
+ struct wb_writeback_work, list);
+ list_del_init(&work->list);
}
-
- rcu_read_unlock();
- return ret;
+ spin_unlock(&bdi->wb_lock);
+ return work;
}
static long wb_check_old_data_flush(struct bdi_writeback *wb)
@@ -830,14 +721,14 @@ static long wb_check_old_data_flush(struct bdi_writeback *wb)
(inodes_stat.nr_inodes - inodes_stat.nr_unused);
if (nr_pages) {
- struct wb_writeback_args args = {
+ struct wb_writeback_work work = {
.nr_pages = nr_pages,
.sync_mode = WB_SYNC_NONE,
.for_kupdate = 1,
.range_cyclic = 1,
};
- return wb_writeback(wb, &args);
+ return wb_writeback(wb, &work);
}
return 0;
@@ -849,33 +740,27 @@ static long wb_check_old_data_flush(struct bdi_writeback *wb)
long wb_do_writeback(struct bdi_writeback *wb, int force_wait)
{
struct backing_dev_info *bdi = wb->bdi;
- struct bdi_work *work;
+ struct wb_writeback_work *work;
long wrote = 0;
while ((work = get_next_work_item(bdi, wb)) != NULL) {
- struct wb_writeback_args args = work->args;
-
/*
* Override sync mode, in case we must wait for completion
+ * because this thread is exiting now.
*/
if (force_wait)
- work->args.sync_mode = args.sync_mode = WB_SYNC_ALL;
-
- /*
- * If this isn't a data integrity operation, just notify
- * that we have seen this work and we are now starting it.
- */
- if (!test_bit(WS_ONSTACK, &work->state))
- wb_clear_pending(wb, work);
+ work->sync_mode = WB_SYNC_ALL;
- wrote += wb_writeback(wb, &args);
+ wrote += wb_writeback(wb, work);
/*
- * This is a data integrity writeback, so only do the
- * notification when we have completed the work.
+ * Notify the caller of completion if this is a synchronous
+ * work item, otherwise just free it.
*/
- if (test_bit(WS_ONSTACK, &work->state))
- wb_clear_pending(wb, work);
+ if (work->done)
+ complete(work->done);
+ else
+ kfree(work);
}
/*
@@ -938,14 +823,9 @@ int bdi_writeback_task(struct bdi_writeback *wb)
void wakeup_flusher_threads(long nr_pages)
{
struct backing_dev_info *bdi;
- struct wb_writeback_args args = {
- .sync_mode = WB_SYNC_NONE,
- };
- if (nr_pages) {
- args.nr_pages = nr_pages;
- } else {
- args.nr_pages = global_page_state(NR_FILE_DIRTY) +
+ if (!nr_pages) {
+ nr_pages = global_page_state(NR_FILE_DIRTY) +
global_page_state(NR_UNSTABLE_NFS);
}
@@ -953,7 +833,7 @@ void wakeup_flusher_threads(long nr_pages)
list_for_each_entry_rcu(bdi, &bdi_list, bdi_list) {
if (!bdi_has_dirty_io(bdi))
continue;
- bdi_alloc_queue_work(bdi, &args);
+ __bdi_start_writeback(bdi, nr_pages, false, false);
}
rcu_read_unlock();
}
@@ -1162,17 +1042,20 @@ void writeback_inodes_sb(struct super_block *sb)
{
unsigned long nr_dirty = global_page_state(NR_FILE_DIRTY);
unsigned long nr_unstable = global_page_state(NR_UNSTABLE_NFS);
- struct wb_writeback_args args = {
+ DECLARE_COMPLETION_ONSTACK(done);
+ struct wb_writeback_work work = {
.sb = sb,
.sync_mode = WB_SYNC_NONE,
+ .done = &done,
};
WARN_ON(!rwsem_is_locked(&sb->s_umount));
- args.nr_pages = nr_dirty + nr_unstable +
+ work.nr_pages = nr_dirty + nr_unstable +
(inodes_stat.nr_inodes - inodes_stat.nr_unused);
- bdi_queue_work_onstack(&args);
+ bdi_queue_work(sb->s_bdi, &work);
+ wait_for_completion(&done);
}
EXPORT_SYMBOL(writeback_inodes_sb);
@@ -1204,16 +1087,20 @@ EXPORT_SYMBOL(writeback_inodes_sb_if_idle);
*/
void sync_inodes_sb(struct super_block *sb)
{
- struct wb_writeback_args args = {
+ DECLARE_COMPLETION_ONSTACK(done);
+ struct wb_writeback_work work = {
.sb = sb,
.sync_mode = WB_SYNC_ALL,
.nr_pages = LONG_MAX,
.range_cyclic = 0,
+ .done = &done,
};
WARN_ON(!rwsem_is_locked(&sb->s_umount));
- bdi_queue_work_onstack(&args);
+ bdi_queue_work(sb->s_bdi, &work);
+ wait_for_completion(&done);
+
wait_sb_inodes(sb);
}
EXPORT_SYMBOL(sync_inodes_sb);
diff --git a/fs/fscache/Kconfig b/fs/fscache/Kconfig
index cc94bb9..3f6dfa9 100644
--- a/fs/fscache/Kconfig
+++ b/fs/fscache/Kconfig
@@ -1,7 +1,6 @@
config FSCACHE
tristate "General filesystem local caching manager"
- select SLOW_WORK
help
This option enables a generic filesystem caching manager that can be
used by various network and other filesystems to cache data locally.
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
index edd7434..6a02644 100644
--- a/fs/fscache/internal.h
+++ b/fs/fscache/internal.h
@@ -82,6 +82,14 @@ extern unsigned fscache_defer_lookup;
extern unsigned fscache_defer_create;
extern unsigned fscache_debug;
extern struct kobject *fscache_root;
+extern struct workqueue_struct *fscache_object_wq;
+extern struct workqueue_struct *fscache_op_wq;
+DECLARE_PER_CPU(wait_queue_head_t, fscache_object_cong_wait);
+
+static inline bool fscache_object_congested(void)
+{
+ return workqueue_congested(WORK_CPU_UNBOUND, fscache_object_wq);
+}
extern int fscache_wait_bit(void *);
extern int fscache_wait_bit_interruptible(void *);
diff --git a/fs/fscache/main.c b/fs/fscache/main.c
index add6bdb..f9d8567 100644
--- a/fs/fscache/main.c
+++ b/fs/fscache/main.c
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/completion.h>
#include <linux/slab.h>
+#include <linux/seq_file.h>
#include "internal.h"
MODULE_DESCRIPTION("FS Cache Manager");
@@ -40,22 +41,105 @@ MODULE_PARM_DESC(fscache_debug,
"FS-Cache debugging mask");
struct kobject *fscache_root;
+struct workqueue_struct *fscache_object_wq;
+struct workqueue_struct *fscache_op_wq;
+
+DEFINE_PER_CPU(wait_queue_head_t, fscache_object_cong_wait);
+
+/* these values serve as lower bounds, will be adjusted in fscache_init() */
+static unsigned fscache_object_max_active = 4;
+static unsigned fscache_op_max_active = 2;
+
+#ifdef CONFIG_SYSCTL
+static struct ctl_table_header *fscache_sysctl_header;
+
+static int fscache_max_active_sysctl(struct ctl_table *table, int write,
+ void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ struct workqueue_struct **wqp = table->extra1;
+ unsigned int *datap = table->data;
+ int ret;
+
+ ret = proc_dointvec(table, write, buffer, lenp, ppos);
+ if (ret == 0)
+ workqueue_set_max_active(*wqp, *datap);
+ return ret;
+}
+
+ctl_table fscache_sysctls[] = {
+ {
+ .procname = "object_max_active",
+ .data = &fscache_object_max_active,
+ .maxlen = sizeof(unsigned),
+ .mode = 0644,
+ .proc_handler = fscache_max_active_sysctl,
+ .extra1 = &fscache_object_wq,
+ },
+ {
+ .procname = "operation_max_active",
+ .data = &fscache_op_max_active,
+ .maxlen = sizeof(unsigned),
+ .mode = 0644,
+ .proc_handler = fscache_max_active_sysctl,
+ .extra1 = &fscache_op_wq,
+ },
+ {}
+};
+
+ctl_table fscache_sysctls_root[] = {
+ {
+ .procname = "fscache",
+ .mode = 0555,
+ .child = fscache_sysctls,
+ },
+ {}
+};
+#endif
/*
* initialise the fs caching module
*/
static int __init fscache_init(void)
{
+ unsigned int nr_cpus = num_possible_cpus();
+ unsigned int cpu;
int ret;
- ret = slow_work_register_user(THIS_MODULE);
- if (ret < 0)
- goto error_slow_work;
+ fscache_object_max_active =
+ clamp_val(nr_cpus,
+ fscache_object_max_active, WQ_UNBOUND_MAX_ACTIVE);
+
+ ret = -ENOMEM;
+ fscache_object_wq = alloc_workqueue("fscache_object", WQ_UNBOUND,
+ fscache_object_max_active);
+ if (!fscache_object_wq)
+ goto error_object_wq;
+
+ fscache_op_max_active =
+ clamp_val(fscache_object_max_active / 2,
+ fscache_op_max_active, WQ_UNBOUND_MAX_ACTIVE);
+
+ ret = -ENOMEM;
+ fscache_op_wq = alloc_workqueue("fscache_operation", WQ_UNBOUND,
+ fscache_op_max_active);
+ if (!fscache_op_wq)
+ goto error_op_wq;
+
+ for_each_possible_cpu(cpu)
+ init_waitqueue_head(&per_cpu(fscache_object_cong_wait, cpu));
ret = fscache_proc_init();
if (ret < 0)
goto error_proc;
+#ifdef CONFIG_SYSCTL
+ ret = -ENOMEM;
+ fscache_sysctl_header = register_sysctl_table(fscache_sysctls_root);
+ if (!fscache_sysctl_header)
+ goto error_sysctl;
+#endif
+
fscache_cookie_jar = kmem_cache_create("fscache_cookie_jar",
sizeof(struct fscache_cookie),
0,
@@ -78,10 +162,16 @@ static int __init fscache_init(void)
error_kobj:
kmem_cache_destroy(fscache_cookie_jar);
error_cookie_jar:
+#ifdef CONFIG_SYSCTL
+ unregister_sysctl_table(fscache_sysctl_header);
+error_sysctl:
+#endif
fscache_proc_cleanup();
error_proc:
- slow_work_unregister_user(THIS_MODULE);
-error_slow_work:
+ destroy_workqueue(fscache_op_wq);
+error_op_wq:
+ destroy_workqueue(fscache_object_wq);
+error_object_wq:
return ret;
}
@@ -96,8 +186,12 @@ static void __exit fscache_exit(void)
kobject_put(fscache_root);
kmem_cache_destroy(fscache_cookie_jar);
+#ifdef CONFIG_SYSCTL
+ unregister_sysctl_table(fscache_sysctl_header);
+#endif
fscache_proc_cleanup();
- slow_work_unregister_user(THIS_MODULE);
+ destroy_workqueue(fscache_op_wq);
+ destroy_workqueue(fscache_object_wq);
printk(KERN_NOTICE "FS-Cache: Unloaded\n");
}
diff --git a/fs/fscache/object-list.c b/fs/fscache/object-list.c
index 4a8eb31..ebe29c5 100644
--- a/fs/fscache/object-list.c
+++ b/fs/fscache/object-list.c
@@ -34,8 +34,8 @@ struct fscache_objlist_data {
#define FSCACHE_OBJLIST_CONFIG_NOREADS 0x00000200 /* show objects without active reads */
#define FSCACHE_OBJLIST_CONFIG_EVENTS 0x00000400 /* show objects with events */
#define FSCACHE_OBJLIST_CONFIG_NOEVENTS 0x00000800 /* show objects without no events */
-#define FSCACHE_OBJLIST_CONFIG_WORK 0x00001000 /* show objects with slow work */
-#define FSCACHE_OBJLIST_CONFIG_NOWORK 0x00002000 /* show objects without slow work */
+#define FSCACHE_OBJLIST_CONFIG_WORK 0x00001000 /* show objects with work */
+#define FSCACHE_OBJLIST_CONFIG_NOWORK 0x00002000 /* show objects without work */
u8 buf[512]; /* key and aux data buffer */
};
@@ -231,12 +231,11 @@ static int fscache_objlist_show(struct seq_file *m, void *v)
READS, NOREADS);
FILTER(obj->events & obj->event_mask,
EVENTS, NOEVENTS);
- FILTER(obj->work.flags & ~(1UL << SLOW_WORK_VERY_SLOW),
- WORK, NOWORK);
+ FILTER(work_busy(&obj->work), WORK, NOWORK);
}
seq_printf(m,
- "%8x %8x %s %5u %3u %3u %3u %2u %5u %2lx %2lx %1lx %1lx | ",
+ "%8x %8x %s %5u %3u %3u %3u %2u %5u %2lx %2lx %1lx %1x | ",
obj->debug_id,
obj->parent ? obj->parent->debug_id : -1,
fscache_object_states_short[obj->state],
@@ -249,7 +248,7 @@ static int fscache_objlist_show(struct seq_file *m, void *v)
obj->event_mask & FSCACHE_OBJECT_EVENTS_MASK,
obj->events,
obj->flags,
- obj->work.flags);
+ work_busy(&obj->work));
no_cookie = true;
keylen = auxlen = 0;
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 0b589a9..b6b897c 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -14,7 +14,6 @@
#define FSCACHE_DEBUG_LEVEL COOKIE
#include <linux/module.h>
-#include <linux/seq_file.h>
#include "internal.h"
const char *fscache_object_states[FSCACHE_OBJECT__NSTATES] = {
@@ -50,12 +49,8 @@ const char fscache_object_states_short[FSCACHE_OBJECT__NSTATES][5] = {
[FSCACHE_OBJECT_DEAD] = "DEAD",
};
-static void fscache_object_slow_work_put_ref(struct slow_work *);
-static int fscache_object_slow_work_get_ref(struct slow_work *);
-static void fscache_object_slow_work_execute(struct slow_work *);
-#ifdef CONFIG_SLOW_WORK_DEBUG
-static void fscache_object_slow_work_desc(struct slow_work *, struct seq_file *);
-#endif
+static int fscache_get_object(struct fscache_object *);
+static void fscache_put_object(struct fscache_object *);
static void fscache_initialise_object(struct fscache_object *);
static void fscache_lookup_object(struct fscache_object *);
static void fscache_object_available(struct fscache_object *);
@@ -64,17 +59,6 @@ static void fscache_withdraw_object(struct fscache_object *);
static void fscache_enqueue_dependents(struct fscache_object *);
static void fscache_dequeue_object(struct fscache_object *);
-const struct slow_work_ops fscache_object_slow_work_ops = {
- .owner = THIS_MODULE,
- .get_ref = fscache_object_slow_work_get_ref,
- .put_ref = fscache_object_slow_work_put_ref,
- .execute = fscache_object_slow_work_execute,
-#ifdef CONFIG_SLOW_WORK_DEBUG
- .desc = fscache_object_slow_work_desc,
-#endif
-};
-EXPORT_SYMBOL(fscache_object_slow_work_ops);
-
/*
* we need to notify the parent when an op completes that we had outstanding
* upon it
@@ -345,7 +329,7 @@ unsupported_event:
/*
* execute an object
*/
-static void fscache_object_slow_work_execute(struct slow_work *work)
+void fscache_object_work_func(struct work_struct *work)
{
struct fscache_object *object =
container_of(work, struct fscache_object, work);
@@ -359,23 +343,9 @@ static void fscache_object_slow_work_execute(struct slow_work *work)
if (object->events & object->event_mask)
fscache_enqueue_object(object);
clear_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events);
+ fscache_put_object(object);
}
-
-/*
- * describe an object for slow-work debugging
- */
-#ifdef CONFIG_SLOW_WORK_DEBUG
-static void fscache_object_slow_work_desc(struct slow_work *work,
- struct seq_file *m)
-{
- struct fscache_object *object =
- container_of(work, struct fscache_object, work);
-
- seq_printf(m, "FSC: OBJ%x: %s",
- object->debug_id,
- fscache_object_states_short[object->state]);
-}
-#endif
+EXPORT_SYMBOL(fscache_object_work_func);
/*
* initialise an object
@@ -393,7 +363,6 @@ static void fscache_initialise_object(struct fscache_object *object)
_enter("");
ASSERT(object->cookie != NULL);
ASSERT(object->cookie->parent != NULL);
- ASSERT(list_empty(&object->work.link));
if (object->events & ((1 << FSCACHE_OBJECT_EV_ERROR) |
(1 << FSCACHE_OBJECT_EV_RELEASE) |
@@ -671,10 +640,8 @@ static void fscache_drop_object(struct fscache_object *object)
object->parent = NULL;
}
- /* this just shifts the object release to the slow work processor */
- fscache_stat(&fscache_n_cop_put_object);
- object->cache->ops->put_object(object);
- fscache_stat_d(&fscache_n_cop_put_object);
+ /* this just shifts the object release to the work processor */
+ fscache_put_object(object);
_leave("");
}
@@ -758,12 +725,10 @@ void fscache_withdrawing_object(struct fscache_cache *cache,
}
/*
- * allow the slow work item processor to get a ref on an object
+ * get a ref on an object
*/
-static int fscache_object_slow_work_get_ref(struct slow_work *work)
+static int fscache_get_object(struct fscache_object *object)
{
- struct fscache_object *object =
- container_of(work, struct fscache_object, work);
int ret;
fscache_stat(&fscache_n_cop_grab_object);
@@ -773,13 +738,10 @@ static int fscache_object_slow_work_get_ref(struct slow_work *work)
}
/*
- * allow the slow work item processor to discard a ref on a work item
+ * discard a ref on a work item
*/
-static void fscache_object_slow_work_put_ref(struct slow_work *work)
+static void fscache_put_object(struct fscache_object *object)
{
- struct fscache_object *object =
- container_of(work, struct fscache_object, work);
-
fscache_stat(&fscache_n_cop_put_object);
object->cache->ops->put_object(object);
fscache_stat_d(&fscache_n_cop_put_object);
@@ -792,8 +754,48 @@ void fscache_enqueue_object(struct fscache_object *object)
{
_enter("{OBJ%x}", object->debug_id);
- slow_work_enqueue(&object->work);
+ if (fscache_get_object(object) >= 0) {
+ wait_queue_head_t *cong_wq =
+ &get_cpu_var(fscache_object_cong_wait);
+
+ if (queue_work(fscache_object_wq, &object->work)) {
+ if (fscache_object_congested())
+ wake_up(cong_wq);
+ } else
+ fscache_put_object(object);
+
+ put_cpu_var(fscache_object_cong_wait);
+ }
+}
+
+/**
+ * fscache_object_sleep_till_congested - Sleep until object wq is congested
+ * @timoutp: Scheduler sleep timeout
+ *
+ * Allow an object handler to sleep until the object workqueue is congested.
+ *
+ * The caller must set up a wake up event before calling this and must have set
+ * the appropriate sleep mode (such as TASK_UNINTERRUPTIBLE) and tested its own
+ * condition before calling this function as no test is made here.
+ *
+ * %true is returned if the object wq is congested, %false otherwise.
+ */
+bool fscache_object_sleep_till_congested(signed long *timeoutp)
+{
+ wait_queue_head_t *cong_wq = &__get_cpu_var(fscache_object_cong_wait);
+ DEFINE_WAIT(wait);
+
+ if (fscache_object_congested())
+ return true;
+
+ add_wait_queue_exclusive(cong_wq, &wait);
+ if (!fscache_object_congested())
+ *timeoutp = schedule_timeout(*timeoutp);
+ finish_wait(cong_wq, &wait);
+
+ return fscache_object_congested();
}
+EXPORT_SYMBOL_GPL(fscache_object_sleep_till_congested);
/*
* enqueue the dependents of an object for metadata-type processing
@@ -819,9 +821,7 @@ static void fscache_enqueue_dependents(struct fscache_object *object)
/* sort onto appropriate lists */
fscache_enqueue_object(dep);
- fscache_stat(&fscache_n_cop_put_object);
- dep->cache->ops->put_object(dep);
- fscache_stat_d(&fscache_n_cop_put_object);
+ fscache_put_object(dep);
if (!list_empty(&object->dependents))
cond_resched_lock(&object->lock);
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index f17cecaf..b9f34ea 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -42,16 +42,12 @@ void fscache_enqueue_operation(struct fscache_operation *op)
fscache_stat(&fscache_n_op_enqueue);
switch (op->flags & FSCACHE_OP_TYPE) {
- case FSCACHE_OP_FAST:
- _debug("queue fast");
+ case FSCACHE_OP_ASYNC:
+ _debug("queue async");
atomic_inc(&op->usage);
- if (!schedule_work(&op->fast_work))
+ if (!queue_work(fscache_op_wq, &op->work))
fscache_put_operation(op);
break;
- case FSCACHE_OP_SLOW:
- _debug("queue slow");
- slow_work_enqueue(&op->slow_work);
- break;
case FSCACHE_OP_MYTHREAD:
_debug("queue for caller's attention");
break;
@@ -455,36 +451,13 @@ void fscache_operation_gc(struct work_struct *work)
}
/*
- * allow the slow work item processor to get a ref on an operation
- */
-static int fscache_op_get_ref(struct slow_work *work)
-{
- struct fscache_operation *op =
- container_of(work, struct fscache_operation, slow_work);
-
- atomic_inc(&op->usage);
- return 0;
-}
-
-/*
- * allow the slow work item processor to discard a ref on an operation
- */
-static void fscache_op_put_ref(struct slow_work *work)
-{
- struct fscache_operation *op =
- container_of(work, struct fscache_operation, slow_work);
-
- fscache_put_operation(op);
-}
-
-/*
- * execute an operation using the slow thread pool to provide processing context
- * - the caller holds a ref to this object, so we don't need to hold one
+ * execute an operation using fs_op_wq to provide processing context -
+ * the caller holds a ref to this object, so we don't need to hold one
*/
-static void fscache_op_execute(struct slow_work *work)
+void fscache_op_work_func(struct work_struct *work)
{
struct fscache_operation *op =
- container_of(work, struct fscache_operation, slow_work);
+ container_of(work, struct fscache_operation, work);
unsigned long start;
_enter("{OBJ%x OP%x,%d}",
@@ -494,31 +467,7 @@ static void fscache_op_execute(struct slow_work *work)
start = jiffies;
op->processor(op);
fscache_hist(fscache_ops_histogram, start);
+ fscache_put_operation(op);
_leave("");
}
-
-/*
- * describe an operation for slow-work debugging
- */
-#ifdef CONFIG_SLOW_WORK_DEBUG
-static void fscache_op_desc(struct slow_work *work, struct seq_file *m)
-{
- struct fscache_operation *op =
- container_of(work, struct fscache_operation, slow_work);
-
- seq_printf(m, "FSC: OBJ%x OP%x: %s/%s fl=%lx",
- op->object->debug_id, op->debug_id,
- op->name, op->state, op->flags);
-}
-#endif
-
-const struct slow_work_ops fscache_op_slow_work_ops = {
- .owner = THIS_MODULE,
- .get_ref = fscache_op_get_ref,
- .put_ref = fscache_op_put_ref,
- .execute = fscache_op_execute,
-#ifdef CONFIG_SLOW_WORK_DEBUG
- .desc = fscache_op_desc,
-#endif
-};
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 723b889..41c441c 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -105,7 +105,7 @@ bool __fscache_maybe_release_page(struct fscache_cookie *cookie,
page_busy:
/* we might want to wait here, but that could deadlock the allocator as
- * the slow-work threads writing to the cache may all end up sleeping
+ * the work threads writing to the cache may all end up sleeping
* on memory allocation */
fscache_stat(&fscache_n_store_vmscan_busy);
return false;
@@ -188,9 +188,8 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
return -ENOMEM;
}
- fscache_operation_init(op, NULL);
- fscache_operation_init_slow(op, fscache_attr_changed_op);
- op->flags = FSCACHE_OP_SLOW | (1 << FSCACHE_OP_EXCLUSIVE);
+ fscache_operation_init(op, fscache_attr_changed_op, NULL);
+ op->flags = FSCACHE_OP_ASYNC | (1 << FSCACHE_OP_EXCLUSIVE);
fscache_set_op_name(op, "Attr");
spin_lock(&cookie->lock);
@@ -218,24 +217,6 @@ nobufs:
EXPORT_SYMBOL(__fscache_attr_changed);
/*
- * handle secondary execution given to a retrieval op on behalf of the
- * cache
- */
-static void fscache_retrieval_work(struct work_struct *work)
-{
- struct fscache_retrieval *op =
- container_of(work, struct fscache_retrieval, op.fast_work);
- unsigned long start;
-
- _enter("{OP%x}", op->op.debug_id);
-
- start = jiffies;
- op->op.processor(&op->op);
- fscache_hist(fscache_ops_histogram, start);
- fscache_put_operation(&op->op);
-}
-
-/*
* release a retrieval op reference
*/
static void fscache_release_retrieval_op(struct fscache_operation *_op)
@@ -269,13 +250,12 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
return NULL;
}
- fscache_operation_init(&op->op, fscache_release_retrieval_op);
+ fscache_operation_init(&op->op, NULL, fscache_release_retrieval_op);
op->op.flags = FSCACHE_OP_MYTHREAD | (1 << FSCACHE_OP_WAITING);
op->mapping = mapping;
op->end_io_func = end_io_func;
op->context = context;
op->start_time = jiffies;
- INIT_WORK(&op->op.fast_work, fscache_retrieval_work);
INIT_LIST_HEAD(&op->to_do);
fscache_set_op_name(&op->op, "Retr");
return op;
@@ -795,9 +775,9 @@ int __fscache_write_page(struct fscache_cookie *cookie,
if (!op)
goto nomem;
- fscache_operation_init(&op->op, fscache_release_write_op);
- fscache_operation_init_slow(&op->op, fscache_write_op);
- op->op.flags = FSCACHE_OP_SLOW | (1 << FSCACHE_OP_WAITING);
+ fscache_operation_init(&op->op, fscache_write_op,
+ fscache_release_write_op);
+ op->op.flags = FSCACHE_OP_ASYNC | (1 << FSCACHE_OP_WAITING);
fscache_set_op_name(&op->op, "Write1");
ret = radix_tree_preload(gfp & ~__GFP_HIGHMEM);
@@ -852,7 +832,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
fscache_stat(&fscache_n_store_ops);
fscache_stat(&fscache_n_stores_ok);
- /* the slow work queue now carries its own ref on the object */
+ /* the work queue now carries its own ref on the object */
fscache_put_operation(&op->op);
_leave(" = 0");
return 0;
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 9424796..69ad053 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -239,7 +239,6 @@ static u64 fuse_get_unique(struct fuse_conn *fc)
static void queue_request(struct fuse_conn *fc, struct fuse_req *req)
{
- req->in.h.unique = fuse_get_unique(fc);
req->in.h.len = sizeof(struct fuse_in_header) +
len_args(req->in.numargs, (struct fuse_arg *) req->in.args);
list_add_tail(&req->list, &fc->pending);
@@ -261,6 +260,7 @@ static void flush_bg_queue(struct fuse_conn *fc)
req = list_entry(fc->bg_queue.next, struct fuse_req, list);
list_del(&req->list);
fc->active_background++;
+ req->in.h.unique = fuse_get_unique(fc);
queue_request(fc, req);
}
}
@@ -398,6 +398,7 @@ void fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
else if (fc->conn_error)
req->out.h.error = -ECONNREFUSED;
else {
+ req->in.h.unique = fuse_get_unique(fc);
queue_request(fc, req);
/* acquire extra reference, since request is still needed
after request_end() */
@@ -450,6 +451,23 @@ void fuse_request_send_background(struct fuse_conn *fc, struct fuse_req *req)
}
EXPORT_SYMBOL_GPL(fuse_request_send_background);
+static int fuse_request_send_notify_reply(struct fuse_conn *fc,
+ struct fuse_req *req, u64 unique)
+{
+ int err = -ENODEV;
+
+ req->isreply = 0;
+ req->in.h.unique = unique;
+ spin_lock(&fc->lock);
+ if (fc->connected) {
+ queue_request(fc, req);
+ err = 0;
+ }
+ spin_unlock(&fc->lock);
+
+ return err;
+}
+
/*
* Called under fc->lock
*
@@ -535,13 +553,13 @@ static void fuse_copy_finish(struct fuse_copy_state *cs)
if (!cs->write) {
buf->ops->unmap(cs->pipe, buf, cs->mapaddr);
} else {
- kunmap_atomic(cs->mapaddr, KM_USER0);
+ kunmap(buf->page);
buf->len = PAGE_SIZE - cs->len;
}
cs->currbuf = NULL;
cs->mapaddr = NULL;
} else if (cs->mapaddr) {
- kunmap_atomic(cs->mapaddr, KM_USER0);
+ kunmap(cs->pg);
if (cs->write) {
flush_dcache_page(cs->pg);
set_page_dirty_lock(cs->pg);
@@ -572,7 +590,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs)
BUG_ON(!cs->nr_segs);
cs->currbuf = buf;
- cs->mapaddr = buf->ops->map(cs->pipe, buf, 1);
+ cs->mapaddr = buf->ops->map(cs->pipe, buf, 0);
cs->len = buf->len;
cs->buf = cs->mapaddr + buf->offset;
cs->pipebufs++;
@@ -592,7 +610,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs)
buf->len = 0;
cs->currbuf = buf;
- cs->mapaddr = kmap_atomic(page, KM_USER0);
+ cs->mapaddr = kmap(page);
cs->buf = cs->mapaddr;
cs->len = PAGE_SIZE;
cs->pipebufs++;
@@ -611,7 +629,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs)
return err;
BUG_ON(err != 1);
offset = cs->addr % PAGE_SIZE;
- cs->mapaddr = kmap_atomic(cs->pg, KM_USER0);
+ cs->mapaddr = kmap(cs->pg);
cs->buf = cs->mapaddr + offset;
cs->len = min(PAGE_SIZE - offset, cs->seglen);
cs->seglen -= cs->len;
@@ -1231,6 +1249,199 @@ err:
return err;
}
+static int fuse_notify_store(struct fuse_conn *fc, unsigned int size,
+ struct fuse_copy_state *cs)
+{
+ struct fuse_notify_store_out outarg;
+ struct inode *inode;
+ struct address_space *mapping;
+ u64 nodeid;
+ int err;
+ pgoff_t index;
+ unsigned int offset;
+ unsigned int num;
+ loff_t file_size;
+ loff_t end;
+
+ err = -EINVAL;
+ if (size < sizeof(outarg))
+ goto out_finish;
+
+ err = fuse_copy_one(cs, &outarg, sizeof(outarg));
+ if (err)
+ goto out_finish;
+
+ err = -EINVAL;
+ if (size - sizeof(outarg) != outarg.size)
+ goto out_finish;
+
+ nodeid = outarg.nodeid;
+
+ down_read(&fc->killsb);
+
+ err = -ENOENT;
+ if (!fc->sb)
+ goto out_up_killsb;
+
+ inode = ilookup5(fc->sb, nodeid, fuse_inode_eq, &nodeid);
+ if (!inode)
+ goto out_up_killsb;
+
+ mapping = inode->i_mapping;
+ index = outarg.offset >> PAGE_CACHE_SHIFT;
+ offset = outarg.offset & ~PAGE_CACHE_MASK;
+ file_size = i_size_read(inode);
+ end = outarg.offset + outarg.size;
+ if (end > file_size) {
+ file_size = end;
+ fuse_write_update_size(inode, file_size);
+ }
+
+ num = outarg.size;
+ while (num) {
+ struct page *page;
+ unsigned int this_num;
+
+ err = -ENOMEM;
+ page = find_or_create_page(mapping, index,
+ mapping_gfp_mask(mapping));
+ if (!page)
+ goto out_iput;
+
+ this_num = min_t(unsigned, num, PAGE_CACHE_SIZE - offset);
+ err = fuse_copy_page(cs, &page, offset, this_num, 0);
+ if (!err && offset == 0 && (num != 0 || file_size == end))
+ SetPageUptodate(page);
+ unlock_page(page);
+ page_cache_release(page);
+
+ if (err)
+ goto out_iput;
+
+ num -= this_num;
+ offset = 0;
+ index++;
+ }
+
+ err = 0;
+
+out_iput:
+ iput(inode);
+out_up_killsb:
+ up_read(&fc->killsb);
+out_finish:
+ fuse_copy_finish(cs);
+ return err;
+}
+
+static void fuse_retrieve_end(struct fuse_conn *fc, struct fuse_req *req)
+{
+ int i;
+
+ for (i = 0; i < req->num_pages; i++) {
+ struct page *page = req->pages[i];
+ page_cache_release(page);
+ }
+}
+
+static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode,
+ struct fuse_notify_retrieve_out *outarg)
+{
+ int err;
+ struct address_space *mapping = inode->i_mapping;
+ struct fuse_req *req;
+ pgoff_t index;
+ loff_t file_size;
+ unsigned int num;
+ unsigned int offset;
+ size_t total_len;
+
+ req = fuse_get_req(fc);
+ if (IS_ERR(req))
+ return PTR_ERR(req);
+
+ offset = outarg->offset & ~PAGE_CACHE_MASK;
+
+ req->in.h.opcode = FUSE_NOTIFY_REPLY;
+ req->in.h.nodeid = outarg->nodeid;
+ req->in.numargs = 2;
+ req->in.argpages = 1;
+ req->page_offset = offset;
+ req->end = fuse_retrieve_end;
+
+ index = outarg->offset >> PAGE_CACHE_SHIFT;
+ file_size = i_size_read(inode);
+ num = outarg->size;
+ if (outarg->offset > file_size)
+ num = 0;
+ else if (outarg->offset + num > file_size)
+ num = file_size - outarg->offset;
+
+ while (num) {
+ struct page *page;
+ unsigned int this_num;
+
+ page = find_get_page(mapping, index);
+ if (!page)
+ break;
+
+ this_num = min_t(unsigned, num, PAGE_CACHE_SIZE - offset);
+ req->pages[req->num_pages] = page;
+ req->num_pages++;
+
+ num -= this_num;
+ total_len += this_num;
+ }
+ req->misc.retrieve_in.offset = outarg->offset;
+ req->misc.retrieve_in.size = total_len;
+ req->in.args[0].size = sizeof(req->misc.retrieve_in);
+ req->in.args[0].value = &req->misc.retrieve_in;
+ req->in.args[1].size = total_len;
+
+ err = fuse_request_send_notify_reply(fc, req, outarg->notify_unique);
+ if (err)
+ fuse_retrieve_end(fc, req);
+
+ return err;
+}
+
+static int fuse_notify_retrieve(struct fuse_conn *fc, unsigned int size,
+ struct fuse_copy_state *cs)
+{
+ struct fuse_notify_retrieve_out outarg;
+ struct inode *inode;
+ int err;
+
+ err = -EINVAL;
+ if (size != sizeof(outarg))
+ goto copy_finish;
+
+ err = fuse_copy_one(cs, &outarg, sizeof(outarg));
+ if (err)
+ goto copy_finish;
+
+ fuse_copy_finish(cs);
+
+ down_read(&fc->killsb);
+ err = -ENOENT;
+ if (fc->sb) {
+ u64 nodeid = outarg.nodeid;
+
+ inode = ilookup5(fc->sb, nodeid, fuse_inode_eq, &nodeid);
+ if (inode) {
+ err = fuse_retrieve(fc, inode, &outarg);
+ iput(inode);
+ }
+ }
+ up_read(&fc->killsb);
+
+ return err;
+
+copy_finish:
+ fuse_copy_finish(cs);
+ return err;
+}
+
static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
unsigned int size, struct fuse_copy_state *cs)
{
@@ -1244,6 +1455,12 @@ static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
case FUSE_NOTIFY_INVAL_ENTRY:
return fuse_notify_inval_entry(fc, size, cs);
+ case FUSE_NOTIFY_STORE:
+ return fuse_notify_store(fc, size, cs);
+
+ case FUSE_NOTIFY_RETRIEVE:
+ return fuse_notify_retrieve(fc, size, cs);
+
default:
fuse_copy_finish(cs);
return -EINVAL;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 3cdc5f7..431be07 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1016,7 +1016,7 @@ static int fuse_permission(struct inode *inode, int mask)
exist. So if permissions are revoked this won't be
noticed immediately, only after the attribute
timeout has expired */
- } else if (mask & MAY_ACCESS) {
+ } else if (mask & (MAY_ACCESS | MAY_CHDIR)) {
err = fuse_access(inode, mask);
} else if ((mask & MAY_EXEC) && S_ISREG(inode->i_mode)) {
if (!(inode->i_mode & S_IXUGO)) {
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index ada0ade..147c1f7 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -706,7 +706,7 @@ static int fuse_write_begin(struct file *file, struct address_space *mapping,
return 0;
}
-static void fuse_write_update_size(struct inode *inode, loff_t pos)
+void fuse_write_update_size(struct inode *inode, loff_t pos)
{
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 8f309f0..57d4a3a 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -272,6 +272,7 @@ struct fuse_req {
struct fuse_write_in in;
struct fuse_write_out out;
} write;
+ struct fuse_notify_retrieve_in retrieve_in;
struct fuse_lk_in lk_in;
} misc;
@@ -748,4 +749,6 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
unsigned fuse_file_poll(struct file *file, poll_table *wait);
int fuse_dev_release(struct inode *inode, struct file *file);
+void fuse_write_update_size(struct inode *inode, loff_t pos);
+
#endif /* _FS_FUSE_I_H */
diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig
index a47b431..cc96655 100644
--- a/fs/gfs2/Kconfig
+++ b/fs/gfs2/Kconfig
@@ -7,7 +7,6 @@ config GFS2_FS
select IP_SCTP if DLM_SCTP
select FS_POSIX_ACL
select CRC32
- select SLOW_WORK
select QUOTACTL
help
A cluster filesystem.
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 9f8b525..5e96cbd 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -136,10 +136,7 @@ static int gfs2_writeback_writepage(struct page *page,
if (ret <= 0)
return ret;
- ret = mpage_writepage(page, gfs2_get_block_noalloc, wbc);
- if (ret == -EAGAIN)
- ret = block_write_full_page(page, gfs2_get_block_noalloc, wbc);
- return ret;
+ return nobh_writepage(page, gfs2_get_block_noalloc, wbc);
}
/**
@@ -637,9 +634,7 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping,
}
}
- error = gfs2_write_alloc_required(ip, pos, len, &alloc_required);
- if (error)
- goto out_unlock;
+ alloc_required = gfs2_write_alloc_required(ip, pos, len);
if (alloc_required || gfs2_is_jdata(ip))
gfs2_write_calc_reserv(ip, len, &data_blocks, &ind_blocks);
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 4a48c0f..6f48280 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -1040,7 +1040,8 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
goto out;
if (gfs2_is_stuffed(ip)) {
- u64 dsize = size + sizeof(struct gfs2_inode);
+ u64 dsize = size + sizeof(struct gfs2_dinode);
+ ip->i_disksize = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
@@ -1243,13 +1244,12 @@ int gfs2_file_dealloc(struct gfs2_inode *ip)
* @ip: the file being written to
* @offset: the offset to write to
* @len: the number of bytes being written
- * @alloc_required: set to 1 if an alloc is required, 0 otherwise
*
- * Returns: errno
+ * Returns: 1 if an alloc is required, 0 otherwise
*/
int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
- unsigned int len, int *alloc_required)
+ unsigned int len)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct buffer_head bh;
@@ -1257,26 +1257,23 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
u64 lblock, lblock_stop, size;
u64 end_of_file;
- *alloc_required = 0;
-
if (!len)
return 0;
if (gfs2_is_stuffed(ip)) {
if (offset + len >
sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode))
- *alloc_required = 1;
+ return 1;
return 0;
}
- *alloc_required = 1;
shift = sdp->sd_sb.sb_bsize_shift;
BUG_ON(gfs2_is_dir(ip));
end_of_file = (ip->i_disksize + sdp->sd_sb.sb_bsize - 1) >> shift;
lblock = offset >> shift;
lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;
if (lblock_stop > end_of_file)
- return 0;
+ return 1;
size = (lblock_stop - lblock) << shift;
do {
@@ -1284,12 +1281,11 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
bh.b_size = size;
gfs2_block_map(&ip->i_inode, lblock, &bh, 0);
if (!buffer_mapped(&bh))
- return 0;
+ return 1;
size -= bh.b_size;
lblock += (bh.b_size >> ip->i_inode.i_blkbits);
} while(size > 0);
- *alloc_required = 0;
return 0;
}
diff --git a/fs/gfs2/bmap.h b/fs/gfs2/bmap.h
index c983177..a20a521 100644
--- a/fs/gfs2/bmap.h
+++ b/fs/gfs2/bmap.h
@@ -52,6 +52,6 @@ int gfs2_truncatei(struct gfs2_inode *ip, u64 size);
int gfs2_truncatei_resume(struct gfs2_inode *ip);
int gfs2_file_dealloc(struct gfs2_inode *ip);
int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
- unsigned int len, int *alloc_required);
+ unsigned int len);
#endif /* __BMAP_DOT_H__ */
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 8295c5b..b9dd88a 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -392,7 +392,7 @@ static int gfs2_dirent_find_space(const struct gfs2_dirent *dent,
unsigned totlen = be16_to_cpu(dent->de_rec_len);
if (gfs2_dirent_sentinel(dent))
- actual = GFS2_DIRENT_SIZE(0);
+ actual = 0;
if (totlen - actual >= required)
return 1;
return 0;
@@ -955,7 +955,12 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
/* Change the pointers.
Don't bother distinguishing stuffed from non-stuffed.
This code is complicated enough already. */
- lp = kmalloc(half_len * sizeof(__be64), GFP_NOFS | __GFP_NOFAIL);
+ lp = kmalloc(half_len * sizeof(__be64), GFP_NOFS);
+ if (!lp) {
+ error = -ENOMEM;
+ goto fail_brelse;
+ }
+
/* Change the pointers */
for (x = 0; x < half_len; x++)
lp[x] = cpu_to_be64(bn);
@@ -1063,7 +1068,9 @@ static int dir_double_exhash(struct gfs2_inode *dip)
/* Allocate both the "from" and "to" buffers in one big chunk */
- buf = kcalloc(3, sdp->sd_hash_bsize, GFP_NOFS | __GFP_NOFAIL);
+ buf = kcalloc(3, sdp->sd_hash_bsize, GFP_NOFS);
+ if (!buf)
+ return -ENOMEM;
for (block = dip->i_disksize >> sdp->sd_hash_bsize_shift; block--;) {
error = gfs2_dir_read_data(dip, (char *)buf,
@@ -1231,6 +1238,25 @@ static int do_filldir_main(struct gfs2_inode *dip, u64 *offset,
return 0;
}
+static void *gfs2_alloc_sort_buffer(unsigned size)
+{
+ void *ptr = NULL;
+
+ if (size < KMALLOC_MAX_SIZE)
+ ptr = kmalloc(size, GFP_NOFS | __GFP_NOWARN);
+ if (!ptr)
+ ptr = __vmalloc(size, GFP_NOFS, PAGE_KERNEL);
+ return ptr;
+}
+
+static void gfs2_free_sort_buffer(void *ptr)
+{
+ if (is_vmalloc_addr(ptr))
+ vfree(ptr);
+ else
+ kfree(ptr);
+}
+
static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
filldir_t filldir, int *copied, unsigned *depth,
u64 leaf_no)
@@ -1271,7 +1297,7 @@ static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
* 99 is the maximum number of entries that can fit in a single
* leaf block.
*/
- larr = vmalloc((leaves + entries + 99) * sizeof(void *));
+ larr = gfs2_alloc_sort_buffer((leaves + entries + 99) * sizeof(void *));
if (!larr)
goto out;
darr = (const struct gfs2_dirent **)(larr + leaves);
@@ -1282,7 +1308,7 @@ static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
do {
error = get_leaf(ip, lfn, &bh);
if (error)
- goto out_kfree;
+ goto out_free;
lf = (struct gfs2_leaf *)bh->b_data;
lfn = be64_to_cpu(lf->lf_next);
if (lf->lf_entries) {
@@ -1291,7 +1317,7 @@ static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
gfs2_dirent_gather, NULL, &g);
error = PTR_ERR(dent);
if (IS_ERR(dent))
- goto out_kfree;
+ goto out_free;
if (entries2 != g.offset) {
fs_warn(sdp, "Number of entries corrupt in dir "
"leaf %llu, entries2 (%u) != "
@@ -1300,7 +1326,7 @@ static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
entries2, g.offset);
error = -EIO;
- goto out_kfree;
+ goto out_free;
}
error = 0;
larr[leaf++] = bh;
@@ -1312,10 +1338,10 @@ static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
BUG_ON(entries2 != entries);
error = do_filldir_main(ip, offset, opaque, filldir, darr,
entries, copied);
-out_kfree:
+out_free:
for(i = 0; i < leaf; i++)
brelse(larr[i]);
- vfree(larr);
+ gfs2_free_sort_buffer(larr);
out:
return error;
}
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index ed9a94f..4edd662 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -351,7 +351,6 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
unsigned long last_index;
u64 pos = page->index << PAGE_CACHE_SHIFT;
unsigned int data_blocks, ind_blocks, rblocks;
- int alloc_required = 0;
struct gfs2_holder gh;
struct gfs2_alloc *al;
int ret;
@@ -364,8 +363,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
set_bit(GLF_DIRTY, &ip->i_gl->gl_flags);
set_bit(GIF_SW_PAGED, &ip->i_flags);
- ret = gfs2_write_alloc_required(ip, pos, PAGE_CACHE_SIZE, &alloc_required);
- if (ret || !alloc_required)
+ if (!gfs2_write_alloc_required(ip, pos, PAGE_CACHE_SIZE))
goto out_unlock;
ret = -ENOMEM;
al = gfs2_alloc_get(ip);
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index ddcdbf4..9adf8f9 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -328,6 +328,30 @@ static void gfs2_holder_wake(struct gfs2_holder *gh)
}
/**
+ * do_error - Something unexpected has happened during a lock request
+ *
+ */
+
+static inline void do_error(struct gfs2_glock *gl, const int ret)
+{
+ struct gfs2_holder *gh, *tmp;
+
+ list_for_each_entry_safe(gh, tmp, &gl->gl_holders, gh_list) {
+ if (test_bit(HIF_HOLDER, &gh->gh_iflags))
+ continue;
+ if (ret & LM_OUT_ERROR)
+ gh->gh_error = -EIO;
+ else if (gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB))
+ gh->gh_error = GLR_TRYFAILED;
+ else
+ continue;
+ list_del_init(&gh->gh_list);
+ trace_gfs2_glock_queue(gh, 0);
+ gfs2_holder_wake(gh);
+ }
+}
+
+/**
* do_promote - promote as many requests as possible on the current queue
* @gl: The glock
*
@@ -375,36 +399,13 @@ restart:
}
if (gh->gh_list.prev == &gl->gl_holders)
return 1;
+ do_error(gl, 0);
break;
}
return 0;
}
/**
- * do_error - Something unexpected has happened during a lock request
- *
- */
-
-static inline void do_error(struct gfs2_glock *gl, const int ret)
-{
- struct gfs2_holder *gh, *tmp;
-
- list_for_each_entry_safe(gh, tmp, &gl->gl_holders, gh_list) {
- if (test_bit(HIF_HOLDER, &gh->gh_iflags))
- continue;
- if (ret & LM_OUT_ERROR)
- gh->gh_error = -EIO;
- else if (gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB))
- gh->gh_error = GLR_TRYFAILED;
- else
- continue;
- list_del_init(&gh->gh_list);
- trace_gfs2_glock_queue(gh, 0);
- gfs2_holder_wake(gh);
- }
-}
-
-/**
* find_first_waiter - find the first gh that's waiting for the glock
* @gl: the glock
*/
@@ -1062,6 +1063,9 @@ int gfs2_glock_nq(struct gfs2_holder *gh)
spin_lock(&gl->gl_spin);
add_to_queue(gh);
+ if ((LM_FLAG_NOEXP & gh->gh_flags) &&
+ test_and_clear_bit(GLF_FROZEN, &gl->gl_flags))
+ set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
run_queue(gl, 1);
spin_unlock(&gl->gl_spin);
@@ -1319,6 +1323,36 @@ void gfs2_glock_cb(struct gfs2_glock *gl, unsigned int state)
}
/**
+ * gfs2_should_freeze - Figure out if glock should be frozen
+ * @gl: The glock in question
+ *
+ * Glocks are not frozen if (a) the result of the dlm operation is
+ * an error, (b) the locking operation was an unlock operation or
+ * (c) if there is a "noexp" flagged request anywhere in the queue
+ *
+ * Returns: 1 if freezing should occur, 0 otherwise
+ */
+
+static int gfs2_should_freeze(const struct gfs2_glock *gl)
+{
+ const struct gfs2_holder *gh;
+
+ if (gl->gl_reply & ~LM_OUT_ST_MASK)
+ return 0;
+ if (gl->gl_target == LM_ST_UNLOCKED)
+ return 0;
+
+ list_for_each_entry(gh, &gl->gl_holders, gh_list) {
+ if (test_bit(HIF_HOLDER, &gh->gh_iflags))
+ continue;
+ if (LM_FLAG_NOEXP & gh->gh_flags)
+ return 0;
+ }
+
+ return 1;
+}
+
+/**
* gfs2_glock_complete - Callback used by locking
* @gl: Pointer to the glock
* @ret: The return value from the dlm
@@ -1328,18 +1362,17 @@ void gfs2_glock_cb(struct gfs2_glock *gl, unsigned int state)
void gfs2_glock_complete(struct gfs2_glock *gl, int ret)
{
struct lm_lockstruct *ls = &gl->gl_sbd->sd_lockstruct;
+
gl->gl_reply = ret;
+
if (unlikely(test_bit(DFL_BLOCK_LOCKS, &ls->ls_flags))) {
- struct gfs2_holder *gh;
spin_lock(&gl->gl_spin);
- gh = find_first_waiter(gl);
- if ((!(gh && (gh->gh_flags & LM_FLAG_NOEXP)) &&
- (gl->gl_target != LM_ST_UNLOCKED)) ||
- ((ret & ~LM_OUT_ST_MASK) != 0))
+ if (gfs2_should_freeze(gl)) {
set_bit(GLF_FROZEN, &gl->gl_flags);
- spin_unlock(&gl->gl_spin);
- if (test_bit(GLF_FROZEN, &gl->gl_flags))
+ spin_unlock(&gl->gl_spin);
return;
+ }
+ spin_unlock(&gl->gl_spin);
}
set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
gfs2_glock_hold(gl);
@@ -1348,7 +1381,7 @@ void gfs2_glock_complete(struct gfs2_glock *gl, int ret)
}
-static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask)
+static int gfs2_shrink_glock_memory(struct shrinker *shrink, int nr, gfp_t gfp_mask)
{
struct gfs2_glock *gl;
int may_demote;
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index b5d7363..fdbf4b3 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -12,7 +12,6 @@
#include <linux/fs.h>
#include <linux/workqueue.h>
-#include <linux/slow-work.h>
#include <linux/dlm.h>
#include <linux/buffer_head.h>
@@ -383,7 +382,7 @@ struct gfs2_journal_extent {
struct gfs2_jdesc {
struct list_head jd_list;
struct list_head extent_list;
- struct slow_work jd_work;
+ struct work_struct jd_work;
struct inode *jd_inode;
unsigned long jd_flags;
#define JDF_RECOVERY 1
@@ -460,6 +459,7 @@ enum {
SDF_NOBARRIERS = 3,
SDF_NORECOVERY = 4,
SDF_DEMOTE = 5,
+ SDF_NOJOURNALID = 6,
};
#define GFS2_FSNAME_LEN 256
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index b5612cb..f03afd9 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -169,7 +169,7 @@ struct inode *gfs2_inode_lookup(struct super_block *sb,
{
struct inode *inode;
struct gfs2_inode *ip;
- struct gfs2_glock *io_gl;
+ struct gfs2_glock *io_gl = NULL;
int error;
inode = gfs2_iget(sb, no_addr);
@@ -198,6 +198,7 @@ struct inode *gfs2_inode_lookup(struct super_block *sb,
ip->i_iopen_gh.gh_gl->gl_object = ip;
gfs2_glock_put(io_gl);
+ io_gl = NULL;
if ((type == DT_UNKNOWN) && (no_formal_ino == 0))
goto gfs2_nfsbypass;
@@ -228,7 +229,8 @@ gfs2_nfsbypass:
fail_glock:
gfs2_glock_dq(&ip->i_iopen_gh);
fail_iopen:
- gfs2_glock_put(io_gl);
+ if (io_gl)
+ gfs2_glock_put(io_gl);
fail_put:
if (inode->i_state & I_NEW)
ip->i_gl->gl_object = NULL;
@@ -256,7 +258,7 @@ void gfs2_process_unlinked_inode(struct super_block *sb, u64 no_addr)
{
struct gfs2_sbd *sdp;
struct gfs2_inode *ip;
- struct gfs2_glock *io_gl;
+ struct gfs2_glock *io_gl = NULL;
int error;
struct gfs2_holder gh;
struct inode *inode;
@@ -293,6 +295,7 @@ void gfs2_process_unlinked_inode(struct super_block *sb, u64 no_addr)
ip->i_iopen_gh.gh_gl->gl_object = ip;
gfs2_glock_put(io_gl);
+ io_gl = NULL;
inode->i_mode = DT2IF(DT_UNKNOWN);
@@ -319,7 +322,8 @@ void gfs2_process_unlinked_inode(struct super_block *sb, u64 no_addr)
fail_glock:
gfs2_glock_dq(&ip->i_iopen_gh);
fail_iopen:
- gfs2_glock_put(io_gl);
+ if (io_gl)
+ gfs2_glock_put(io_gl);
fail_put:
ip->i_gl->gl_object = NULL;
gfs2_glock_put(ip->i_gl);
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index fb2a5f9..b1e9630 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -15,7 +15,6 @@
#include <linux/init.h>
#include <linux/gfs2_ondisk.h>
#include <asm/atomic.h>
-#include <linux/slow-work.h>
#include "gfs2.h"
#include "incore.h"
@@ -24,6 +23,7 @@
#include "util.h"
#include "glock.h"
#include "quota.h"
+#include "recovery.h"
static struct shrinker qd_shrinker = {
.shrink = gfs2_shrink_qd_memory,
@@ -138,9 +138,11 @@ static int __init init_gfs2_fs(void)
if (error)
goto fail_unregister;
- error = slow_work_register_user(THIS_MODULE);
- if (error)
- goto fail_slow;
+ error = -ENOMEM;
+ gfs_recovery_wq = alloc_workqueue("gfs_recovery",
+ WQ_NON_REENTRANT | WQ_RESCUER, 0);
+ if (!gfs_recovery_wq)
+ goto fail_wq;
gfs2_register_debugfs();
@@ -148,7 +150,7 @@ static int __init init_gfs2_fs(void)
return 0;
-fail_slow:
+fail_wq:
unregister_filesystem(&gfs2meta_fs_type);
fail_unregister:
unregister_filesystem(&gfs2_fs_type);
@@ -190,7 +192,7 @@ static void __exit exit_gfs2_fs(void)
gfs2_unregister_debugfs();
unregister_filesystem(&gfs2_fs_type);
unregister_filesystem(&gfs2meta_fs_type);
- slow_work_unregister_user(THIS_MODULE);
+ destroy_workqueue(gfs_recovery_wq);
kmem_cache_destroy(gfs2_quotad_cachep);
kmem_cache_destroy(gfs2_rgrpd_cachep);
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 3593b3a..4f44bde 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -17,7 +17,6 @@
#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/gfs2_ondisk.h>
-#include <linux/slow-work.h>
#include <linux/quotaops.h>
#include "gfs2.h"
@@ -76,7 +75,7 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
sb->s_fs_info = sdp;
sdp->sd_vfs = sb;
-
+ set_bit(SDF_NOJOURNALID, &sdp->sd_flags);
gfs2_tune_init(&sdp->sd_tune);
init_waitqueue_head(&sdp->sd_glock_wait);
@@ -673,7 +672,7 @@ static int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
break;
INIT_LIST_HEAD(&jd->extent_list);
- slow_work_init(&jd->jd_work, &gfs2_recover_ops);
+ INIT_WORK(&jd->jd_work, gfs2_recover_func);
jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1);
if (!jd->jd_inode || IS_ERR(jd->jd_inode)) {
if (!jd->jd_inode)
@@ -782,7 +781,8 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
if (sdp->sd_lockstruct.ls_first) {
unsigned int x;
for (x = 0; x < sdp->sd_journals; x++) {
- error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x));
+ error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x),
+ true);
if (error) {
fs_err(sdp, "error recovering journal %u: %d\n",
x, error);
@@ -792,7 +792,7 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
gfs2_others_may_mount(sdp);
} else if (!sdp->sd_args.ar_spectator) {
- error = gfs2_recover_journal(sdp->sd_jdesc);
+ error = gfs2_recover_journal(sdp->sd_jdesc, true);
if (error) {
fs_err(sdp, "error recovering my journal: %d\n", error);
goto fail_jinode_gh;
@@ -1050,7 +1050,8 @@ static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
ret = match_int(&tmp[0], &option);
if (ret || option < 0)
goto hostdata_error;
- ls->ls_jid = option;
+ if (test_and_clear_bit(SDF_NOJOURNALID, &sdp->sd_flags))
+ ls->ls_jid = option;
break;
case Opt_id:
/* Obsolete, but left for backward compat purposes */
@@ -1102,6 +1103,24 @@ void gfs2_lm_unmount(struct gfs2_sbd *sdp)
lm->lm_unmount(sdp);
}
+static int gfs2_journalid_wait(void *word)
+{
+ if (signal_pending(current))
+ return -EINTR;
+ schedule();
+ return 0;
+}
+
+static int wait_on_journal(struct gfs2_sbd *sdp)
+{
+ if (sdp->sd_args.ar_spectator)
+ return 0;
+ if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL)
+ return 0;
+
+ return wait_on_bit(&sdp->sd_flags, SDF_NOJOURNALID, gfs2_journalid_wait, TASK_INTERRUPTIBLE);
+}
+
void gfs2_online_uevent(struct gfs2_sbd *sdp)
{
struct super_block *sb = sdp->sd_vfs;
@@ -1194,6 +1213,10 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent
if (error)
goto fail_locking;
+ error = wait_on_journal(sdp);
+ if (error)
+ goto fail_sb;
+
error = init_inodes(sdp, DO);
if (error)
goto fail_sb;
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 49667d6..1bc6b56 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -77,7 +77,7 @@ static LIST_HEAD(qd_lru_list);
static atomic_t qd_lru_count = ATOMIC_INIT(0);
static DEFINE_SPINLOCK(qd_lru_lock);
-int gfs2_shrink_qd_memory(int nr, gfp_t gfp_mask)
+int gfs2_shrink_qd_memory(struct shrinker *shrink, int nr, gfp_t gfp_mask)
{
struct gfs2_quota_data *qd;
struct gfs2_sbd *sdp;
@@ -694,10 +694,8 @@ get_a_page:
if (!buffer_mapped(bh))
goto unlock_out;
/* If it's a newly allocated disk block for quota, zero it */
- if (buffer_new(bh)) {
- memset(bh->b_data, 0, bh->b_size);
- set_buffer_uptodate(bh);
- }
+ if (buffer_new(bh))
+ zero_user(page, pos - blocksize, bh->b_size);
}
if (PageUptodate(page))
@@ -723,7 +721,7 @@ get_a_page:
/* If quota straddles page boundary, we need to update the rest of the
* quota at the beginning of the next page */
- if (offset != 0) { /* first page, offset is closer to PAGE_CACHE_SIZE */
+ if ((offset + sizeof(struct gfs2_quota)) > PAGE_CACHE_SIZE) {
ptr = ptr + nbytes;
nbytes = sizeof(struct gfs2_quota) - nbytes;
offset = 0;
@@ -789,15 +787,9 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
goto out;
for (x = 0; x < num_qd; x++) {
- int alloc_required;
-
offset = qd2offset(qda[x]);
- error = gfs2_write_alloc_required(ip, offset,
- sizeof(struct gfs2_quota),
- &alloc_required);
- if (error)
- goto out_gunlock;
- if (alloc_required)
+ if (gfs2_write_alloc_required(ip, offset,
+ sizeof(struct gfs2_quota)))
nalloc++;
}
@@ -1457,10 +1449,10 @@ static int gfs2_quota_get_xstate(struct super_block *sb,
switch (sdp->sd_args.ar_quota) {
case GFS2_QUOTA_ON:
- fqs->qs_flags |= (XFS_QUOTA_UDQ_ENFD | XFS_QUOTA_GDQ_ENFD);
+ fqs->qs_flags |= (FS_QUOTA_UDQ_ENFD | FS_QUOTA_GDQ_ENFD);
/*FALLTHRU*/
case GFS2_QUOTA_ACCOUNT:
- fqs->qs_flags |= (XFS_QUOTA_UDQ_ACCT | XFS_QUOTA_GDQ_ACCT);
+ fqs->qs_flags |= (FS_QUOTA_UDQ_ACCT | FS_QUOTA_GDQ_ACCT);
break;
case GFS2_QUOTA_OFF:
break;
@@ -1506,7 +1498,7 @@ static int gfs2_get_dqblk(struct super_block *sb, int type, qid_t id,
qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb;
fdq->d_version = FS_DQUOT_VERSION;
- fdq->d_flags = (type == QUOTA_USER) ? XFS_USER_QUOTA : XFS_GROUP_QUOTA;
+ fdq->d_flags = (type == QUOTA_USER) ? FS_USER_QUOTA : FS_GROUP_QUOTA;
fdq->d_id = id;
fdq->d_blk_hardlimit = be64_to_cpu(qlvb->qb_limit);
fdq->d_blk_softlimit = be64_to_cpu(qlvb->qb_warn);
@@ -1541,12 +1533,12 @@ static int gfs2_set_dqblk(struct super_block *sb, int type, qid_t id,
switch(type) {
case USRQUOTA:
type = QUOTA_USER;
- if (fdq->d_flags != XFS_USER_QUOTA)
+ if (fdq->d_flags != FS_USER_QUOTA)
return -EINVAL;
break;
case GRPQUOTA:
type = QUOTA_GROUP;
- if (fdq->d_flags != XFS_GROUP_QUOTA)
+ if (fdq->d_flags != FS_GROUP_QUOTA)
return -EINVAL;
break;
default:
@@ -1586,10 +1578,7 @@ static int gfs2_set_dqblk(struct super_block *sb, int type, qid_t id,
goto out_i;
offset = qd2offset(qd);
- error = gfs2_write_alloc_required(ip, offset, sizeof(struct gfs2_quota),
- &alloc_required);
- if (error)
- goto out_i;
+ alloc_required = gfs2_write_alloc_required(ip, offset, sizeof(struct gfs2_quota));
if (alloc_required) {
al = gfs2_alloc_get(ip);
if (al == NULL)
diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h
index 195f60c..e7d236c 100644
--- a/fs/gfs2/quota.h
+++ b/fs/gfs2/quota.h
@@ -51,7 +51,7 @@ static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
return ret;
}
-extern int gfs2_shrink_qd_memory(int nr, gfp_t gfp_mask);
+extern int gfs2_shrink_qd_memory(struct shrinker *shrink, int nr, gfp_t gfp_mask);
extern const struct quotactl_ops gfs2_quotactl_ops;
#endif /* __QUOTA_DOT_H__ */
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 4b9bece..f7f89a9 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -14,7 +14,6 @@
#include <linux/buffer_head.h>
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
-#include <linux/slow-work.h>
#include "gfs2.h"
#include "incore.h"
@@ -28,6 +27,8 @@
#include "util.h"
#include "dir.h"
+struct workqueue_struct *gfs_recovery_wq;
+
int gfs2_replay_read_block(struct gfs2_jdesc *jd, unsigned int blk,
struct buffer_head **bh)
{
@@ -443,23 +444,7 @@ static void gfs2_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
kobject_uevent_env(&sdp->sd_kobj, KOBJ_CHANGE, envp);
}
-static int gfs2_recover_get_ref(struct slow_work *work)
-{
- struct gfs2_jdesc *jd = container_of(work, struct gfs2_jdesc, jd_work);
- if (test_and_set_bit(JDF_RECOVERY, &jd->jd_flags))
- return -EBUSY;
- return 0;
-}
-
-static void gfs2_recover_put_ref(struct slow_work *work)
-{
- struct gfs2_jdesc *jd = container_of(work, struct gfs2_jdesc, jd_work);
- clear_bit(JDF_RECOVERY, &jd->jd_flags);
- smp_mb__after_clear_bit();
- wake_up_bit(&jd->jd_flags, JDF_RECOVERY);
-}
-
-static void gfs2_recover_work(struct slow_work *work)
+void gfs2_recover_func(struct work_struct *work)
{
struct gfs2_jdesc *jd = container_of(work, struct gfs2_jdesc, jd_work);
struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
@@ -578,7 +563,7 @@ static void gfs2_recover_work(struct slow_work *work)
gfs2_glock_dq_uninit(&j_gh);
fs_info(sdp, "jid=%u: Done\n", jd->jd_jid);
- return;
+ goto done;
fail_gunlock_tr:
gfs2_glock_dq_uninit(&t_gh);
@@ -590,32 +575,35 @@ fail_gunlock_j:
}
fs_info(sdp, "jid=%u: %s\n", jd->jd_jid, (error) ? "Failed" : "Done");
-
fail:
gfs2_recovery_done(sdp, jd->jd_jid, LM_RD_GAVEUP);
+done:
+ clear_bit(JDF_RECOVERY, &jd->jd_flags);
+ smp_mb__after_clear_bit();
+ wake_up_bit(&jd->jd_flags, JDF_RECOVERY);
}
-struct slow_work_ops gfs2_recover_ops = {
- .owner = THIS_MODULE,
- .get_ref = gfs2_recover_get_ref,
- .put_ref = gfs2_recover_put_ref,
- .execute = gfs2_recover_work,
-};
-
-
static int gfs2_recovery_wait(void *word)
{
schedule();
return 0;
}
-int gfs2_recover_journal(struct gfs2_jdesc *jd)
+int gfs2_recover_journal(struct gfs2_jdesc *jd, bool wait)
{
int rv;
- rv = slow_work_enqueue(&jd->jd_work);
- if (rv)
- return rv;
- wait_on_bit(&jd->jd_flags, JDF_RECOVERY, gfs2_recovery_wait, TASK_UNINTERRUPTIBLE);
+
+ if (test_and_set_bit(JDF_RECOVERY, &jd->jd_flags))
+ return -EBUSY;
+
+ /* we have JDF_RECOVERY, queue should always succeed */
+ rv = queue_work(gfs_recovery_wq, &jd->jd_work);
+ BUG_ON(!rv);
+
+ if (wait)
+ wait_on_bit(&jd->jd_flags, JDF_RECOVERY, gfs2_recovery_wait,
+ TASK_UNINTERRUPTIBLE);
+
return 0;
}
diff --git a/fs/gfs2/recovery.h b/fs/gfs2/recovery.h
index 1616ac2..2226136 100644
--- a/fs/gfs2/recovery.h
+++ b/fs/gfs2/recovery.h
@@ -12,6 +12,8 @@
#include "incore.h"
+extern struct workqueue_struct *gfs_recovery_wq;
+
static inline void gfs2_replay_incr_blk(struct gfs2_sbd *sdp, unsigned int *blk)
{
if (++*blk == sdp->sd_jdesc->jd_blocks)
@@ -27,8 +29,8 @@ extern void gfs2_revoke_clean(struct gfs2_sbd *sdp);
extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
struct gfs2_log_header_host *head);
-extern int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd);
-extern struct slow_work_ops gfs2_recover_ops;
+extern int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd, bool wait);
+extern void gfs2_recover_func(struct work_struct *work);
#endif /* __RECOVERY_DOT_H__ */
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 4d1aad3..4140811 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -342,8 +342,6 @@ int gfs2_jdesc_check(struct gfs2_jdesc *jd)
{
struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
- int ar;
- int error;
if (ip->i_disksize < (8 << 20) || ip->i_disksize > (1 << 30) ||
(ip->i_disksize & (sdp->sd_sb.sb_bsize - 1))) {
@@ -352,13 +350,12 @@ int gfs2_jdesc_check(struct gfs2_jdesc *jd)
}
jd->jd_blocks = ip->i_disksize >> sdp->sd_sb.sb_bsize_shift;
- error = gfs2_write_alloc_required(ip, 0, ip->i_disksize, &ar);
- if (!error && ar) {
+ if (gfs2_write_alloc_required(ip, 0, ip->i_disksize)) {
gfs2_consist_inode(ip);
- error = -EIO;
+ return -EIO;
}
- return error;
+ return 0;
}
/**
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 37f5393..ccacffd 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -25,6 +25,7 @@
#include "quota.h"
#include "util.h"
#include "glops.h"
+#include "recovery.h"
struct gfs2_attr {
struct attribute attr;
@@ -325,6 +326,30 @@ static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf)
return sprintf(buf, "%d\n", ls->ls_first);
}
+static ssize_t lkfirst_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
+{
+ unsigned first;
+ int rv;
+
+ rv = sscanf(buf, "%u", &first);
+ if (rv != 1 || first > 1)
+ return -EINVAL;
+ spin_lock(&sdp->sd_jindex_spin);
+ rv = -EBUSY;
+ if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0)
+ goto out;
+ rv = -EINVAL;
+ if (sdp->sd_args.ar_spectator)
+ goto out;
+ if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL)
+ goto out;
+ sdp->sd_lockstruct.ls_first = first;
+ rv = 0;
+out:
+ spin_unlock(&sdp->sd_jindex_spin);
+ return rv ? rv : len;
+}
+
static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf)
{
struct lm_lockstruct *ls = &sdp->sd_lockstruct;
@@ -352,7 +377,7 @@ static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
if (jd->jd_jid != jid)
continue;
- rv = slow_work_enqueue(&jd->jd_work);
+ rv = gfs2_recover_journal(jd, false);
break;
}
out:
@@ -377,14 +402,41 @@ static ssize_t jid_show(struct gfs2_sbd *sdp, char *buf)
return sprintf(buf, "%u\n", sdp->sd_lockstruct.ls_jid);
}
+static ssize_t jid_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
+{
+ unsigned jid;
+ int rv;
+
+ rv = sscanf(buf, "%u", &jid);
+ if (rv != 1)
+ return -EINVAL;
+
+ spin_lock(&sdp->sd_jindex_spin);
+ rv = -EINVAL;
+ if (sdp->sd_args.ar_spectator)
+ goto out;
+ if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL)
+ goto out;
+ rv = -EBUSY;
+ if (test_and_clear_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0)
+ goto out;
+ sdp->sd_lockstruct.ls_jid = jid;
+ smp_mb__after_clear_bit();
+ wake_up_bit(&sdp->sd_flags, SDF_NOJOURNALID);
+ rv = 0;
+out:
+ spin_unlock(&sdp->sd_jindex_spin);
+ return rv ? rv : len;
+}
+
#define GDLM_ATTR(_name,_mode,_show,_store) \
static struct gfs2_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store)
GDLM_ATTR(proto_name, 0444, proto_name_show, NULL);
GDLM_ATTR(block, 0644, block_show, block_store);
GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store);
-GDLM_ATTR(jid, 0444, jid_show, NULL);
-GDLM_ATTR(first, 0444, lkfirst_show, NULL);
+GDLM_ATTR(jid, 0644, jid_show, jid_store);
+GDLM_ATTR(first, 0644, lkfirst_show, lkfirst_store);
GDLM_ATTR(first_done, 0444, first_done_show, NULL);
GDLM_ATTR(recover, 0600, NULL, recover_store);
GDLM_ATTR(recover_done, 0444, recover_done_show, NULL);
@@ -564,7 +616,7 @@ static int gfs2_uevent(struct kset *kset, struct kobject *kobj,
add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name);
add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name);
- if (!sdp->sd_args.ar_spectator)
+ if (!test_bit(SDF_NOJOURNALID, &sdp->sd_flags))
add_uevent_var(env, "JOURNALID=%u", sdp->sd_lockstruct.ls_jid);
if (gfs2_uuid_valid(uuid))
add_uevent_var(env, "UUID=%pUB", uuid);
diff --git a/fs/inode.c b/fs/inode.c
index 2bee20a..722860b 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -512,7 +512,7 @@ static void prune_icache(int nr_to_scan)
* This function is passed the number of inodes to scan, and it returns the
* total number of remaining possibly-reclaimable inodes.
*/
-static int shrink_icache_memory(int nr, gfp_t gfp_mask)
+static int shrink_icache_memory(struct shrinker *shrink, int nr, gfp_t gfp_mask)
{
if (nr) {
/*
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 93d1e47..f19ce94 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1281,13 +1281,9 @@ int journal_check_used_features (journal_t *journal, unsigned long compat,
int journal_check_available_features (journal_t *journal, unsigned long compat,
unsigned long ro, unsigned long incompat)
{
- journal_superblock_t *sb;
-
if (!compat && !ro && !incompat)
return 1;
- sb = journal->j_superblock;
-
/* We can support any known requested features iff the
* superblock is in version 2. Otherwise we fail to support any
* extended sb features. */
@@ -1481,7 +1477,6 @@ int journal_flush(journal_t *journal)
int journal_wipe(journal_t *journal, int write)
{
- journal_superblock_t *sb;
int err = 0;
J_ASSERT (!(journal->j_flags & JFS_LOADED));
@@ -1490,8 +1485,6 @@ int journal_wipe(journal_t *journal, int write)
if (err)
return err;
- sb = journal->j_superblock;
-
if (!journal->j_tail)
goto no_recovery;
diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c
index 54c9bc9..81051da 100644
--- a/fs/jbd/recovery.c
+++ b/fs/jbd/recovery.c
@@ -283,12 +283,9 @@ int journal_recover(journal_t *journal)
int journal_skip_recovery(journal_t *journal)
{
int err;
- journal_superblock_t * sb;
-
struct recovery_info info;
memset (&info, 0, sizeof(info));
- sb = journal->j_superblock;
err = do_one_pass(journal, &info, PASS_SCAN);
@@ -297,7 +294,8 @@ int journal_skip_recovery(journal_t *journal)
++journal->j_transaction_sequence;
} else {
#ifdef CONFIG_JBD_DEBUG
- int dropped = info.end_transaction - be32_to_cpu(sb->s_sequence);
+ int dropped = info.end_transaction -
+ be32_to_cpu(journal->j_superblock->s_sequence);
#endif
jbd_debug(1,
"JBD: ignoring %d transaction%s from the journal.\n",
@@ -321,11 +319,6 @@ static int do_one_pass(journal_t *journal,
unsigned int sequence;
int blocktype;
- /* Precompute the maximum metadata descriptors in a descriptor block */
- int MAX_BLOCKS_PER_DESC;
- MAX_BLOCKS_PER_DESC = ((journal->j_blocksize-sizeof(journal_header_t))
- / sizeof(journal_block_tag_t));
-
/*
* First thing is to establish what we expect to find in the log
* (in terms of transaction IDs), and where (in terms of log
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index 076d1cc..1c23a0f 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -118,13 +118,13 @@ static int __try_to_free_cp_buf(struct journal_head *jh)
void __jbd2_log_wait_for_space(journal_t *journal)
{
int nblocks, space_left;
- assert_spin_locked(&journal->j_state_lock);
+ /* assert_spin_locked(&journal->j_state_lock); */
nblocks = jbd_space_needed(journal);
while (__jbd2_log_space_left(journal) < nblocks) {
if (journal->j_flags & JBD2_ABORT)
return;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
mutex_lock(&journal->j_checkpoint_mutex);
/*
@@ -138,7 +138,7 @@ void __jbd2_log_wait_for_space(journal_t *journal)
* filesystem, so abort the journal and leave a stack
* trace for forensic evidence.
*/
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
nblocks = jbd_space_needed(journal);
space_left = __jbd2_log_space_left(journal);
@@ -149,7 +149,7 @@ void __jbd2_log_wait_for_space(journal_t *journal)
if (journal->j_committing_transaction)
tid = journal->j_committing_transaction->t_tid;
spin_unlock(&journal->j_list_lock);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
if (chkpt) {
jbd2_log_do_checkpoint(journal);
} else if (jbd2_cleanup_journal_tail(journal) == 0) {
@@ -167,7 +167,7 @@ void __jbd2_log_wait_for_space(journal_t *journal)
WARN_ON(1);
jbd2_journal_abort(journal, 0);
}
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
} else {
spin_unlock(&journal->j_list_lock);
}
@@ -474,7 +474,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
* next transaction ID we will write, and where it will
* start. */
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
transaction = journal->j_checkpoint_transactions;
if (transaction) {
@@ -496,7 +496,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
/* If the oldest pinned transaction is at the tail of the log
already then there's not much we can do right now. */
if (journal->j_tail_sequence == first_tid) {
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
return 1;
}
@@ -516,7 +516,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
journal->j_free += freed;
journal->j_tail_sequence = first_tid;
journal->j_tail = blocknr;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
/*
* If there is an external journal, we need to make sure that
@@ -775,7 +775,7 @@ void __jbd2_journal_drop_transaction(journal_t *journal, transaction_t *transact
J_ASSERT(transaction->t_log_list == NULL);
J_ASSERT(transaction->t_checkpoint_list == NULL);
J_ASSERT(transaction->t_checkpoint_io_list == NULL);
- J_ASSERT(transaction->t_updates == 0);
+ J_ASSERT(atomic_read(&transaction->t_updates) == 0);
J_ASSERT(journal->j_committing_transaction != transaction);
J_ASSERT(journal->j_running_transaction != transaction);
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 75716d3..f52e5e8 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -150,11 +150,11 @@ static int journal_submit_commit_record(journal_t *journal,
*/
if (ret == -EOPNOTSUPP && barrier_done) {
printk(KERN_WARNING
- "JBD: barrier-based sync failed on %s - "
- "disabling barriers\n", journal->j_devname);
- spin_lock(&journal->j_state_lock);
+ "JBD2: Disabling barriers on %s, "
+ "not supported by device\n", journal->j_devname);
+ write_lock(&journal->j_state_lock);
journal->j_flags &= ~JBD2_BARRIER;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
/* And try again, without the barrier */
lock_buffer(bh);
@@ -180,11 +180,11 @@ retry:
wait_on_buffer(bh);
if (buffer_eopnotsupp(bh) && (journal->j_flags & JBD2_BARRIER)) {
printk(KERN_WARNING
- "JBD2: wait_on_commit_record: sync failed on %s - "
- "disabling barriers\n", journal->j_devname);
- spin_lock(&journal->j_state_lock);
+ "JBD2: %s: disabling barries on %s - not supported "
+ "by device\n", __func__, journal->j_devname);
+ write_lock(&journal->j_state_lock);
journal->j_flags &= ~JBD2_BARRIER;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
lock_buffer(bh);
clear_buffer_dirty(bh);
@@ -400,7 +400,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
jbd_debug(1, "JBD: starting commit of transaction %d\n",
commit_transaction->t_tid);
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
commit_transaction->t_state = T_LOCKED;
/*
@@ -417,23 +417,23 @@ void jbd2_journal_commit_transaction(journal_t *journal)
stats.run.rs_locked);
spin_lock(&commit_transaction->t_handle_lock);
- while (commit_transaction->t_updates) {
+ while (atomic_read(&commit_transaction->t_updates)) {
DEFINE_WAIT(wait);
prepare_to_wait(&journal->j_wait_updates, &wait,
TASK_UNINTERRUPTIBLE);
- if (commit_transaction->t_updates) {
+ if (atomic_read(&commit_transaction->t_updates)) {
spin_unlock(&commit_transaction->t_handle_lock);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
schedule();
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
spin_lock(&commit_transaction->t_handle_lock);
}
finish_wait(&journal->j_wait_updates, &wait);
}
spin_unlock(&commit_transaction->t_handle_lock);
- J_ASSERT (commit_transaction->t_outstanding_credits <=
+ J_ASSERT (atomic_read(&commit_transaction->t_outstanding_credits) <=
journal->j_max_transaction_buffers);
/*
@@ -497,7 +497,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
start_time = ktime_get();
commit_transaction->t_log_start = journal->j_head;
wake_up(&journal->j_wait_transaction_locked);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
jbd_debug (3, "JBD: commit phase 2\n");
@@ -519,19 +519,20 @@ void jbd2_journal_commit_transaction(journal_t *journal)
* transaction! Now comes the tricky part: we need to write out
* metadata. Loop over the transaction's entire buffer list:
*/
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
commit_transaction->t_state = T_COMMIT;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
trace_jbd2_commit_logging(journal, commit_transaction);
stats.run.rs_logging = jiffies;
stats.run.rs_flushing = jbd2_time_diff(stats.run.rs_flushing,
stats.run.rs_logging);
- stats.run.rs_blocks = commit_transaction->t_outstanding_credits;
+ stats.run.rs_blocks =
+ atomic_read(&commit_transaction->t_outstanding_credits);
stats.run.rs_blocks_logged = 0;
J_ASSERT(commit_transaction->t_nr_buffers <=
- commit_transaction->t_outstanding_credits);
+ atomic_read(&commit_transaction->t_outstanding_credits));
err = 0;
descriptor = NULL;
@@ -616,7 +617,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
* the free space in the log, but this counter is changed
* by jbd2_journal_next_log_block() also.
*/
- commit_transaction->t_outstanding_credits--;
+ atomic_dec(&commit_transaction->t_outstanding_credits);
/* Bump b_count to prevent truncate from stumbling over
the shadowed buffer! @@@ This can go if we ever get
@@ -977,7 +978,7 @@ restart_loop:
* __jbd2_journal_drop_transaction(). Otherwise we could race with
* other checkpointing code processing the transaction...
*/
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
/*
* Now recheck if some buffers did not get attached to the transaction
@@ -985,7 +986,7 @@ restart_loop:
*/
if (commit_transaction->t_forget) {
spin_unlock(&journal->j_list_lock);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
goto restart_loop;
}
@@ -1003,7 +1004,8 @@ restart_loop:
* File the transaction statistics
*/
stats.ts_tid = commit_transaction->t_tid;
- stats.run.rs_handle_count = commit_transaction->t_handle_count;
+ stats.run.rs_handle_count =
+ atomic_read(&commit_transaction->t_handle_count);
trace_jbd2_run_stats(journal->j_fs_dev->bd_dev,
commit_transaction->t_tid, &stats.run);
@@ -1037,7 +1039,7 @@ restart_loop:
journal->j_average_commit_time*3) / 4;
else
journal->j_average_commit_time = commit_time;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
if (commit_transaction->t_checkpoint_list == NULL &&
commit_transaction->t_checkpoint_io_list == NULL) {
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index bc2ff59..ad5866a 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -41,6 +41,7 @@
#include <linux/hash.h>
#include <linux/log2.h>
#include <linux/vmalloc.h>
+#include <linux/backing-dev.h>
#define CREATE_TRACE_POINTS
#include <trace/events/jbd2.h>
@@ -48,8 +49,6 @@
#include <asm/uaccess.h>
#include <asm/page.h>
-EXPORT_SYMBOL(jbd2_journal_start);
-EXPORT_SYMBOL(jbd2_journal_restart);
EXPORT_SYMBOL(jbd2_journal_extend);
EXPORT_SYMBOL(jbd2_journal_stop);
EXPORT_SYMBOL(jbd2_journal_lock_updates);
@@ -143,7 +142,7 @@ static int kjournald2(void *arg)
/*
* And now, wait forever for commit wakeup events.
*/
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
loop:
if (journal->j_flags & JBD2_UNMOUNT)
@@ -154,10 +153,10 @@ loop:
if (journal->j_commit_sequence != journal->j_commit_request) {
jbd_debug(1, "OK, requests differ\n");
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
del_timer_sync(&journal->j_commit_timer);
jbd2_journal_commit_transaction(journal);
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
goto loop;
}
@@ -169,9 +168,9 @@ loop:
* be already stopped.
*/
jbd_debug(1, "Now suspending kjournald2\n");
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
refrigerator();
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
} else {
/*
* We assume on resume that commits are already there,
@@ -191,9 +190,9 @@ loop:
if (journal->j_flags & JBD2_UNMOUNT)
should_sleep = 0;
if (should_sleep) {
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
schedule();
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
}
finish_wait(&journal->j_wait_commit, &wait);
}
@@ -211,7 +210,7 @@ loop:
goto loop;
end_loop:
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
del_timer_sync(&journal->j_commit_timer);
journal->j_task = NULL;
wake_up(&journal->j_wait_done_commit);
@@ -234,16 +233,16 @@ static int jbd2_journal_start_thread(journal_t *journal)
static void journal_kill_thread(journal_t *journal)
{
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
journal->j_flags |= JBD2_UNMOUNT;
while (journal->j_task) {
wake_up(&journal->j_wait_commit);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
wait_event(journal->j_wait_done_commit, journal->j_task == NULL);
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
}
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
}
/*
@@ -297,7 +296,6 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
struct page *new_page;
unsigned int new_offset;
struct buffer_head *bh_in = jh2bh(jh_in);
- struct jbd2_buffer_trigger_type *triggers;
journal_t *journal = transaction->t_journal;
/*
@@ -311,7 +309,17 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
*/
J_ASSERT_BH(bh_in, buffer_jbddirty(bh_in));
- new_bh = alloc_buffer_head(GFP_NOFS|__GFP_NOFAIL);
+retry_alloc:
+ new_bh = alloc_buffer_head(GFP_NOFS);
+ if (!new_bh) {
+ /*
+ * Failure is not an option, but __GFP_NOFAIL is going
+ * away; so we retry ourselves here.
+ */
+ congestion_wait(BLK_RW_ASYNC, HZ/50);
+ goto retry_alloc;
+ }
+
/* keep subsequent assertions sane */
new_bh->b_state = 0;
init_buffer(new_bh, NULL, NULL);
@@ -328,21 +336,21 @@ repeat:
done_copy_out = 1;
new_page = virt_to_page(jh_in->b_frozen_data);
new_offset = offset_in_page(jh_in->b_frozen_data);
- triggers = jh_in->b_frozen_triggers;
} else {
new_page = jh2bh(jh_in)->b_page;
new_offset = offset_in_page(jh2bh(jh_in)->b_data);
- triggers = jh_in->b_triggers;
}
mapped_data = kmap_atomic(new_page, KM_USER0);
/*
- * Fire any commit trigger. Do this before checking for escaping,
- * as the trigger may modify the magic offset. If a copy-out
- * happens afterwards, it will have the correct data in the buffer.
+ * Fire data frozen trigger if data already wasn't frozen. Do this
+ * before checking for escaping, as the trigger may modify the magic
+ * offset. If a copy-out happens afterwards, it will have the correct
+ * data in the buffer.
*/
- jbd2_buffer_commit_trigger(jh_in, mapped_data + new_offset,
- triggers);
+ if (!done_copy_out)
+ jbd2_buffer_frozen_trigger(jh_in, mapped_data + new_offset,
+ jh_in->b_triggers);
/*
* Check for escaping
@@ -443,7 +451,7 @@ int __jbd2_log_space_left(journal_t *journal)
{
int left = journal->j_free;
- assert_spin_locked(&journal->j_state_lock);
+ /* assert_spin_locked(&journal->j_state_lock); */
/*
* Be pessimistic here about the number of those free blocks which
@@ -488,9 +496,9 @@ int jbd2_log_start_commit(journal_t *journal, tid_t tid)
{
int ret;
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
ret = __jbd2_log_start_commit(journal, tid);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
return ret;
}
@@ -509,7 +517,7 @@ int jbd2_journal_force_commit_nested(journal_t *journal)
transaction_t *transaction = NULL;
tid_t tid;
- spin_lock(&journal->j_state_lock);
+ read_lock(&journal->j_state_lock);
if (journal->j_running_transaction && !current->journal_info) {
transaction = journal->j_running_transaction;
__jbd2_log_start_commit(journal, transaction->t_tid);
@@ -517,12 +525,12 @@ int jbd2_journal_force_commit_nested(journal_t *journal)
transaction = journal->j_committing_transaction;
if (!transaction) {
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
return 0; /* Nothing to retry */
}
tid = transaction->t_tid;
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
jbd2_log_wait_commit(journal, tid);
return 1;
}
@@ -536,7 +544,7 @@ int jbd2_journal_start_commit(journal_t *journal, tid_t *ptid)
{
int ret = 0;
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
if (journal->j_running_transaction) {
tid_t tid = journal->j_running_transaction->t_tid;
@@ -555,7 +563,7 @@ int jbd2_journal_start_commit(journal_t *journal, tid_t *ptid)
*ptid = journal->j_committing_transaction->t_tid;
ret = 1;
}
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
return ret;
}
@@ -567,26 +575,24 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
{
int err = 0;
+ read_lock(&journal->j_state_lock);
#ifdef CONFIG_JBD2_DEBUG
- spin_lock(&journal->j_state_lock);
if (!tid_geq(journal->j_commit_request, tid)) {
printk(KERN_EMERG
"%s: error: j_commit_request=%d, tid=%d\n",
__func__, journal->j_commit_request, tid);
}
- spin_unlock(&journal->j_state_lock);
#endif
- spin_lock(&journal->j_state_lock);
while (tid_gt(tid, journal->j_commit_sequence)) {
jbd_debug(1, "JBD: want %d, j_commit_sequence=%d\n",
tid, journal->j_commit_sequence);
wake_up(&journal->j_wait_commit);
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
wait_event(journal->j_wait_done_commit,
!tid_gt(tid, journal->j_commit_sequence));
- spin_lock(&journal->j_state_lock);
+ read_lock(&journal->j_state_lock);
}
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
if (unlikely(is_journal_aborted(journal))) {
printk(KERN_EMERG "journal commit I/O error\n");
@@ -603,7 +609,7 @@ int jbd2_journal_next_log_block(journal_t *journal, unsigned long long *retp)
{
unsigned long blocknr;
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
J_ASSERT(journal->j_free > 1);
blocknr = journal->j_head;
@@ -611,7 +617,7 @@ int jbd2_journal_next_log_block(journal_t *journal, unsigned long long *retp)
journal->j_free--;
if (journal->j_head == journal->j_last)
journal->j_head = journal->j_first;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
return jbd2_journal_bmap(journal, blocknr, retp);
}
@@ -831,7 +837,7 @@ static journal_t * journal_init_common (void)
mutex_init(&journal->j_checkpoint_mutex);
spin_lock_init(&journal->j_revoke_lock);
spin_lock_init(&journal->j_list_lock);
- spin_lock_init(&journal->j_state_lock);
+ rwlock_init(&journal->j_state_lock);
journal->j_commit_interval = (HZ * JBD2_DEFAULT_MAX_COMMIT_AGE);
journal->j_min_batch_time = 0;
@@ -1097,14 +1103,14 @@ void jbd2_journal_update_superblock(journal_t *journal, int wait)
set_buffer_uptodate(bh);
}
- spin_lock(&journal->j_state_lock);
+ read_lock(&journal->j_state_lock);
jbd_debug(1,"JBD: updating superblock (start %ld, seq %d, errno %d)\n",
journal->j_tail, journal->j_tail_sequence, journal->j_errno);
sb->s_sequence = cpu_to_be32(journal->j_tail_sequence);
sb->s_start = cpu_to_be32(journal->j_tail);
sb->s_errno = cpu_to_be32(journal->j_errno);
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
BUFFER_TRACE(bh, "marking dirty");
mark_buffer_dirty(bh);
@@ -1125,12 +1131,12 @@ out:
* any future commit will have to be careful to update the
* superblock again to re-record the true start of the log. */
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
if (sb->s_start)
journal->j_flags &= ~JBD2_FLUSHED;
else
journal->j_flags |= JBD2_FLUSHED;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
}
/*
@@ -1392,13 +1398,9 @@ int jbd2_journal_check_used_features (journal_t *journal, unsigned long compat,
int jbd2_journal_check_available_features (journal_t *journal, unsigned long compat,
unsigned long ro, unsigned long incompat)
{
- journal_superblock_t *sb;
-
if (!compat && !ro && !incompat)
return 1;
- sb = journal->j_superblock;
-
/* We can support any known requested features iff the
* superblock is in version 2. Otherwise we fail to support any
* extended sb features. */
@@ -1546,7 +1548,7 @@ int jbd2_journal_flush(journal_t *journal)
transaction_t *transaction = NULL;
unsigned long old_tail;
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
/* Force everything buffered to the log... */
if (journal->j_running_transaction) {
@@ -1559,10 +1561,10 @@ int jbd2_journal_flush(journal_t *journal)
if (transaction) {
tid_t tid = transaction->t_tid;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
jbd2_log_wait_commit(journal, tid);
} else {
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
}
/* ...and flush everything in the log out to disk. */
@@ -1586,12 +1588,12 @@ int jbd2_journal_flush(journal_t *journal)
* the magic code for a fully-recovered superblock. Any future
* commits of data to the journal will restore the current
* s_start value. */
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
old_tail = journal->j_tail;
journal->j_tail = 0;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
jbd2_journal_update_superblock(journal, 1);
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
journal->j_tail = old_tail;
J_ASSERT(!journal->j_running_transaction);
@@ -1599,7 +1601,7 @@ int jbd2_journal_flush(journal_t *journal)
J_ASSERT(!journal->j_checkpoint_transactions);
J_ASSERT(journal->j_head == journal->j_tail);
J_ASSERT(journal->j_tail_sequence == journal->j_transaction_sequence);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
return 0;
}
@@ -1618,7 +1620,6 @@ int jbd2_journal_flush(journal_t *journal)
int jbd2_journal_wipe(journal_t *journal, int write)
{
- journal_superblock_t *sb;
int err = 0;
J_ASSERT (!(journal->j_flags & JBD2_LOADED));
@@ -1627,8 +1628,6 @@ int jbd2_journal_wipe(journal_t *journal, int write)
if (err)
return err;
- sb = journal->j_superblock;
-
if (!journal->j_tail)
goto no_recovery;
@@ -1666,12 +1665,12 @@ void __jbd2_journal_abort_hard(journal_t *journal)
printk(KERN_ERR "Aborting journal on device %s.\n",
journal->j_devname);
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
journal->j_flags |= JBD2_ABORT;
transaction = journal->j_running_transaction;
if (transaction)
__jbd2_log_start_commit(journal, transaction->t_tid);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
}
/* Soft abort: record the abort error status in the journal superblock,
@@ -1756,12 +1755,12 @@ int jbd2_journal_errno(journal_t *journal)
{
int err;
- spin_lock(&journal->j_state_lock);
+ read_lock(&journal->j_state_lock);
if (journal->j_flags & JBD2_ABORT)
err = -EROFS;
else
err = journal->j_errno;
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
return err;
}
@@ -1776,12 +1775,12 @@ int jbd2_journal_clear_err(journal_t *journal)
{
int err = 0;
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
if (journal->j_flags & JBD2_ABORT)
err = -EROFS;
else
journal->j_errno = 0;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
return err;
}
@@ -1794,10 +1793,10 @@ int jbd2_journal_clear_err(journal_t *journal)
*/
void jbd2_journal_ack_err(journal_t *journal)
{
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
if (journal->j_errno)
journal->j_flags |= JBD2_ACK_ERR;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
}
int jbd2_journal_blocks_per_page(struct inode *inode)
@@ -2202,8 +2201,6 @@ void jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode)
void jbd2_journal_release_jbd_inode(journal_t *journal,
struct jbd2_inode *jinode)
{
- int writeout = 0;
-
if (!journal)
return;
restart:
@@ -2220,9 +2217,6 @@ restart:
goto restart;
}
- /* Do we need to wait for data writeback? */
- if (journal->j_committing_transaction == jinode->i_transaction)
- writeout = 1;
if (jinode->i_transaction) {
list_del(&jinode->i_list);
jinode->i_transaction = NULL;
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 049281b..2bc4d5f 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -285,12 +285,10 @@ int jbd2_journal_recover(journal_t *journal)
int jbd2_journal_skip_recovery(journal_t *journal)
{
int err;
- journal_superblock_t * sb;
struct recovery_info info;
memset (&info, 0, sizeof(info));
- sb = journal->j_superblock;
err = do_one_pass(journal, &info, PASS_SCAN);
@@ -299,7 +297,8 @@ int jbd2_journal_skip_recovery(journal_t *journal)
++journal->j_transaction_sequence;
} else {
#ifdef CONFIG_JBD2_DEBUG
- int dropped = info.end_transaction - be32_to_cpu(sb->s_sequence);
+ int dropped = info.end_transaction -
+ be32_to_cpu(journal->j_superblock->s_sequence);
#endif
jbd_debug(1,
"JBD: ignoring %d transaction%s from the journal.\n",
@@ -365,11 +364,6 @@ static int do_one_pass(journal_t *journal,
int tag_bytes = journal_tag_bytes(journal);
__u32 crc32_sum = ~0; /* Transactional Checksums */
- /* Precompute the maximum metadata descriptors in a descriptor block */
- int MAX_BLOCKS_PER_DESC;
- MAX_BLOCKS_PER_DESC = ((journal->j_blocksize-sizeof(journal_header_t))
- / tag_bytes);
-
/*
* First thing is to establish what we expect to find in the log
* (in terms of transaction IDs), and where (in terms of log
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index e214d68..d95cc9d 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -26,6 +26,8 @@
#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/hrtimer.h>
+#include <linux/backing-dev.h>
+#include <linux/module.h>
static void __jbd2_journal_temp_unlink_buffer(struct journal_head *jh);
@@ -53,6 +55,9 @@ jbd2_get_transaction(journal_t *journal, transaction_t *transaction)
transaction->t_tid = journal->j_transaction_sequence++;
transaction->t_expires = jiffies + journal->j_commit_interval;
spin_lock_init(&transaction->t_handle_lock);
+ atomic_set(&transaction->t_updates, 0);
+ atomic_set(&transaction->t_outstanding_credits, 0);
+ atomic_set(&transaction->t_handle_count, 0);
INIT_LIST_HEAD(&transaction->t_inode_list);
INIT_LIST_HEAD(&transaction->t_private_list);
@@ -83,65 +88,75 @@ jbd2_get_transaction(journal_t *journal, transaction_t *transaction)
* transaction's buffer credits.
*/
-static int start_this_handle(journal_t *journal, handle_t *handle)
+static int start_this_handle(journal_t *journal, handle_t *handle,
+ int gfp_mask)
{
transaction_t *transaction;
int needed;
int nblocks = handle->h_buffer_credits;
transaction_t *new_transaction = NULL;
- int ret = 0;
unsigned long ts = jiffies;
if (nblocks > journal->j_max_transaction_buffers) {
printk(KERN_ERR "JBD: %s wants too many credits (%d > %d)\n",
current->comm, nblocks,
journal->j_max_transaction_buffers);
- ret = -ENOSPC;
- goto out;
+ return -ENOSPC;
}
alloc_transaction:
if (!journal->j_running_transaction) {
- new_transaction = kzalloc(sizeof(*new_transaction),
- GFP_NOFS|__GFP_NOFAIL);
+ new_transaction = kzalloc(sizeof(*new_transaction), gfp_mask);
if (!new_transaction) {
- ret = -ENOMEM;
- goto out;
+ /*
+ * If __GFP_FS is not present, then we may be
+ * being called from inside the fs writeback
+ * layer, so we MUST NOT fail. Since
+ * __GFP_NOFAIL is going away, we will arrange
+ * to retry the allocation ourselves.
+ */
+ if ((gfp_mask & __GFP_FS) == 0) {
+ congestion_wait(BLK_RW_ASYNC, HZ/50);
+ goto alloc_transaction;
+ }
+ return -ENOMEM;
}
}
jbd_debug(3, "New handle %p going live.\n", handle);
-repeat:
-
/*
* We need to hold j_state_lock until t_updates has been incremented,
* for proper journal barrier handling
*/
- spin_lock(&journal->j_state_lock);
-repeat_locked:
+repeat:
+ read_lock(&journal->j_state_lock);
if (is_journal_aborted(journal) ||
(journal->j_errno != 0 && !(journal->j_flags & JBD2_ACK_ERR))) {
- spin_unlock(&journal->j_state_lock);
- ret = -EROFS;
- goto out;
+ read_unlock(&journal->j_state_lock);
+ kfree(new_transaction);
+ return -EROFS;
}
/* Wait on the journal's transaction barrier if necessary */
if (journal->j_barrier_count) {
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
wait_event(journal->j_wait_transaction_locked,
journal->j_barrier_count == 0);
goto repeat;
}
if (!journal->j_running_transaction) {
- if (!new_transaction) {
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
+ if (!new_transaction)
goto alloc_transaction;
+ write_lock(&journal->j_state_lock);
+ if (!journal->j_running_transaction) {
+ jbd2_get_transaction(journal, new_transaction);
+ new_transaction = NULL;
}
- jbd2_get_transaction(journal, new_transaction);
- new_transaction = NULL;
+ write_unlock(&journal->j_state_lock);
+ goto repeat;
}
transaction = journal->j_running_transaction;
@@ -155,7 +170,7 @@ repeat_locked:
prepare_to_wait(&journal->j_wait_transaction_locked,
&wait, TASK_UNINTERRUPTIBLE);
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
schedule();
finish_wait(&journal->j_wait_transaction_locked, &wait);
goto repeat;
@@ -166,8 +181,8 @@ repeat_locked:
* buffers requested by this operation, we need to stall pending a log
* checkpoint to free some more log space.
*/
- spin_lock(&transaction->t_handle_lock);
- needed = transaction->t_outstanding_credits + nblocks;
+ needed = atomic_add_return(nblocks,
+ &transaction->t_outstanding_credits);
if (needed > journal->j_max_transaction_buffers) {
/*
@@ -178,11 +193,11 @@ repeat_locked:
DEFINE_WAIT(wait);
jbd_debug(2, "Handle %p starting new commit...\n", handle);
- spin_unlock(&transaction->t_handle_lock);
+ atomic_sub(nblocks, &transaction->t_outstanding_credits);
prepare_to_wait(&journal->j_wait_transaction_locked, &wait,
TASK_UNINTERRUPTIBLE);
__jbd2_log_start_commit(journal, transaction->t_tid);
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
schedule();
finish_wait(&journal->j_wait_transaction_locked, &wait);
goto repeat;
@@ -215,35 +230,48 @@ repeat_locked:
*/
if (__jbd2_log_space_left(journal) < jbd_space_needed(journal)) {
jbd_debug(2, "Handle %p waiting for checkpoint...\n", handle);
- spin_unlock(&transaction->t_handle_lock);
- __jbd2_log_wait_for_space(journal);
- goto repeat_locked;
+ atomic_sub(nblocks, &transaction->t_outstanding_credits);
+ read_unlock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
+ if (__jbd2_log_space_left(journal) < jbd_space_needed(journal))
+ __jbd2_log_wait_for_space(journal);
+ write_unlock(&journal->j_state_lock);
+ goto repeat;
}
/* OK, account for the buffers that this operation expects to
- * use and add the handle to the running transaction. */
-
- if (time_after(transaction->t_start, ts)) {
+ * use and add the handle to the running transaction.
+ *
+ * In order for t_max_wait to be reliable, it must be
+ * protected by a lock. But doing so will mean that
+ * start_this_handle() can not be run in parallel on SMP
+ * systems, which limits our scalability. So we only enable
+ * it when debugging is enabled. We may want to use a
+ * separate flag, eventually, so we can enable this
+ * independently of debugging.
+ */
+#ifdef CONFIG_JBD2_DEBUG
+ if (jbd2_journal_enable_debug &&
+ time_after(transaction->t_start, ts)) {
ts = jbd2_time_diff(ts, transaction->t_start);
+ spin_lock(&transaction->t_handle_lock);
if (ts > transaction->t_max_wait)
transaction->t_max_wait = ts;
+ spin_unlock(&transaction->t_handle_lock);
}
-
+#endif
handle->h_transaction = transaction;
- transaction->t_outstanding_credits += nblocks;
- transaction->t_updates++;
- transaction->t_handle_count++;
+ atomic_inc(&transaction->t_updates);
+ atomic_inc(&transaction->t_handle_count);
jbd_debug(4, "Handle %p given %d credits (total %d, free %d)\n",
- handle, nblocks, transaction->t_outstanding_credits,
+ handle, nblocks,
+ atomic_read(&transaction->t_outstanding_credits),
__jbd2_log_space_left(journal));
- spin_unlock(&transaction->t_handle_lock);
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
lock_map_acquire(&handle->h_lockdep_map);
-out:
- if (unlikely(new_transaction)) /* It's usually NULL */
- kfree(new_transaction);
- return ret;
+ kfree(new_transaction);
+ return 0;
}
static struct lock_class_key jbd2_handle_key;
@@ -278,7 +306,7 @@ static handle_t *new_handle(int nblocks)
*
* Return a pointer to a newly allocated handle, or NULL on failure
*/
-handle_t *jbd2_journal_start(journal_t *journal, int nblocks)
+handle_t *jbd2__journal_start(journal_t *journal, int nblocks, int gfp_mask)
{
handle_t *handle = journal_current_handle();
int err;
@@ -298,7 +326,7 @@ handle_t *jbd2_journal_start(journal_t *journal, int nblocks)
current->journal_info = handle;
- err = start_this_handle(journal, handle);
+ err = start_this_handle(journal, handle, gfp_mask);
if (err < 0) {
jbd2_free_handle(handle);
current->journal_info = NULL;
@@ -308,6 +336,15 @@ handle_t *jbd2_journal_start(journal_t *journal, int nblocks)
out:
return handle;
}
+EXPORT_SYMBOL(jbd2__journal_start);
+
+
+handle_t *jbd2_journal_start(journal_t *journal, int nblocks)
+{
+ return jbd2__journal_start(journal, nblocks, GFP_NOFS);
+}
+EXPORT_SYMBOL(jbd2_journal_start);
+
/**
* int jbd2_journal_extend() - extend buffer credits.
@@ -342,7 +379,7 @@ int jbd2_journal_extend(handle_t *handle, int nblocks)
result = 1;
- spin_lock(&journal->j_state_lock);
+ read_lock(&journal->j_state_lock);
/* Don't extend a locked-down transaction! */
if (handle->h_transaction->t_state != T_RUNNING) {
@@ -352,7 +389,7 @@ int jbd2_journal_extend(handle_t *handle, int nblocks)
}
spin_lock(&transaction->t_handle_lock);
- wanted = transaction->t_outstanding_credits + nblocks;
+ wanted = atomic_read(&transaction->t_outstanding_credits) + nblocks;
if (wanted > journal->j_max_transaction_buffers) {
jbd_debug(3, "denied handle %p %d blocks: "
@@ -367,14 +404,14 @@ int jbd2_journal_extend(handle_t *handle, int nblocks)
}
handle->h_buffer_credits += nblocks;
- transaction->t_outstanding_credits += nblocks;
+ atomic_add(nblocks, &transaction->t_outstanding_credits);
result = 0;
jbd_debug(3, "extended handle %p by %d\n", handle, nblocks);
unlock:
spin_unlock(&transaction->t_handle_lock);
error_out:
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
out:
return result;
}
@@ -394,8 +431,7 @@ out:
* transaction capabable of guaranteeing the requested number of
* credits.
*/
-
-int jbd2_journal_restart(handle_t *handle, int nblocks)
+int jbd2__journal_restart(handle_t *handle, int nblocks, int gfp_mask)
{
transaction_t *transaction = handle->h_transaction;
journal_t *journal = transaction->t_journal;
@@ -410,29 +446,35 @@ int jbd2_journal_restart(handle_t *handle, int nblocks)
* First unlink the handle from its current transaction, and start the
* commit on that.
*/
- J_ASSERT(transaction->t_updates > 0);
+ J_ASSERT(atomic_read(&transaction->t_updates) > 0);
J_ASSERT(journal_current_handle() == handle);
- spin_lock(&journal->j_state_lock);
+ read_lock(&journal->j_state_lock);
spin_lock(&transaction->t_handle_lock);
- transaction->t_outstanding_credits -= handle->h_buffer_credits;
- transaction->t_updates--;
-
- if (!transaction->t_updates)
+ atomic_sub(handle->h_buffer_credits,
+ &transaction->t_outstanding_credits);
+ if (atomic_dec_and_test(&transaction->t_updates))
wake_up(&journal->j_wait_updates);
spin_unlock(&transaction->t_handle_lock);
jbd_debug(2, "restarting handle %p\n", handle);
__jbd2_log_start_commit(journal, transaction->t_tid);
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
lock_map_release(&handle->h_lockdep_map);
handle->h_buffer_credits = nblocks;
- ret = start_this_handle(journal, handle);
+ ret = start_this_handle(journal, handle, gfp_mask);
return ret;
}
+EXPORT_SYMBOL(jbd2__journal_restart);
+int jbd2_journal_restart(handle_t *handle, int nblocks)
+{
+ return jbd2__journal_restart(handle, nblocks, GFP_NOFS);
+}
+EXPORT_SYMBOL(jbd2_journal_restart);
+
/**
* void jbd2_journal_lock_updates () - establish a transaction barrier.
* @journal: Journal to establish a barrier on.
@@ -447,7 +489,7 @@ void jbd2_journal_lock_updates(journal_t *journal)
{
DEFINE_WAIT(wait);
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
++journal->j_barrier_count;
/* Wait until there are no running updates */
@@ -458,19 +500,19 @@ void jbd2_journal_lock_updates(journal_t *journal)
break;
spin_lock(&transaction->t_handle_lock);
- if (!transaction->t_updates) {
+ if (!atomic_read(&transaction->t_updates)) {
spin_unlock(&transaction->t_handle_lock);
break;
}
prepare_to_wait(&journal->j_wait_updates, &wait,
TASK_UNINTERRUPTIBLE);
spin_unlock(&transaction->t_handle_lock);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
schedule();
finish_wait(&journal->j_wait_updates, &wait);
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
}
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
/*
* We have now established a barrier against other normal updates, but
@@ -494,9 +536,9 @@ void jbd2_journal_unlock_updates (journal_t *journal)
J_ASSERT(journal->j_barrier_count != 0);
mutex_unlock(&journal->j_barrier);
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
--journal->j_barrier_count;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
wake_up(&journal->j_wait_transaction_locked);
}
@@ -725,6 +767,9 @@ done:
page = jh2bh(jh)->b_page;
offset = ((unsigned long) jh2bh(jh)->b_data) & ~PAGE_MASK;
source = kmap_atomic(page, KM_USER0);
+ /* Fire data frozen trigger just before we copy the data */
+ jbd2_buffer_frozen_trigger(jh, source + offset,
+ jh->b_triggers);
memcpy(jh->b_frozen_data, source+offset, jh2bh(jh)->b_size);
kunmap_atomic(source, KM_USER0);
@@ -963,15 +1008,15 @@ void jbd2_journal_set_triggers(struct buffer_head *bh,
jh->b_triggers = type;
}
-void jbd2_buffer_commit_trigger(struct journal_head *jh, void *mapped_data,
+void jbd2_buffer_frozen_trigger(struct journal_head *jh, void *mapped_data,
struct jbd2_buffer_trigger_type *triggers)
{
struct buffer_head *bh = jh2bh(jh);
- if (!triggers || !triggers->t_commit)
+ if (!triggers || !triggers->t_frozen)
return;
- triggers->t_commit(triggers, bh, mapped_data, bh->b_size);
+ triggers->t_frozen(triggers, bh, mapped_data, bh->b_size);
}
void jbd2_buffer_abort_trigger(struct journal_head *jh,
@@ -1235,7 +1280,8 @@ int jbd2_journal_stop(handle_t *handle)
{
transaction_t *transaction = handle->h_transaction;
journal_t *journal = transaction->t_journal;
- int err;
+ int err, wait_for_commit = 0;
+ tid_t tid;
pid_t pid;
J_ASSERT(journal_current_handle() == handle);
@@ -1243,7 +1289,7 @@ int jbd2_journal_stop(handle_t *handle)
if (is_handle_aborted(handle))
err = -EIO;
else {
- J_ASSERT(transaction->t_updates > 0);
+ J_ASSERT(atomic_read(&transaction->t_updates) > 0);
err = 0;
}
@@ -1288,9 +1334,9 @@ int jbd2_journal_stop(handle_t *handle)
journal->j_last_sync_writer = pid;
- spin_lock(&journal->j_state_lock);
+ read_lock(&journal->j_state_lock);
commit_time = journal->j_average_commit_time;
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
trans_time = ktime_to_ns(ktime_sub(ktime_get(),
transaction->t_start_time));
@@ -1311,14 +1357,8 @@ int jbd2_journal_stop(handle_t *handle)
if (handle->h_sync)
transaction->t_synchronous_commit = 1;
current->journal_info = NULL;
- spin_lock(&transaction->t_handle_lock);
- transaction->t_outstanding_credits -= handle->h_buffer_credits;
- transaction->t_updates--;
- if (!transaction->t_updates) {
- wake_up(&journal->j_wait_updates);
- if (journal->j_barrier_count)
- wake_up(&journal->j_wait_transaction_locked);
- }
+ atomic_sub(handle->h_buffer_credits,
+ &transaction->t_outstanding_credits);
/*
* If the handle is marked SYNC, we need to set another commit
@@ -1327,15 +1367,13 @@ int jbd2_journal_stop(handle_t *handle)
* transaction is too old now.
*/
if (handle->h_sync ||
- transaction->t_outstanding_credits >
- journal->j_max_transaction_buffers ||
- time_after_eq(jiffies, transaction->t_expires)) {
+ (atomic_read(&transaction->t_outstanding_credits) >
+ journal->j_max_transaction_buffers) ||
+ time_after_eq(jiffies, transaction->t_expires)) {
/* Do this even for aborted journals: an abort still
* completes the commit thread, it just doesn't write
* anything to disk. */
- tid_t tid = transaction->t_tid;
- spin_unlock(&transaction->t_handle_lock);
jbd_debug(2, "transaction too old, requesting commit for "
"handle %p\n", handle);
/* This is non-blocking */
@@ -1346,11 +1384,25 @@ int jbd2_journal_stop(handle_t *handle)
* to wait for the commit to complete.
*/
if (handle->h_sync && !(current->flags & PF_MEMALLOC))
- err = jbd2_log_wait_commit(journal, tid);
- } else {
- spin_unlock(&transaction->t_handle_lock);
+ wait_for_commit = 1;
}
+ /*
+ * Once we drop t_updates, if it goes to zero the transaction
+ * could start commiting on us and eventually disappear. So
+ * once we do this, we must not dereference transaction
+ * pointer again.
+ */
+ tid = transaction->t_tid;
+ if (atomic_dec_and_test(&transaction->t_updates)) {
+ wake_up(&journal->j_wait_updates);
+ if (journal->j_barrier_count)
+ wake_up(&journal->j_wait_transaction_locked);
+ }
+
+ if (wait_for_commit)
+ err = jbd2_log_wait_commit(journal, tid);
+
lock_map_release(&handle->h_lockdep_map);
jbd2_free_handle(handle);
@@ -1716,7 +1768,7 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh)
goto zap_buffer_unlocked;
/* OK, we have data buffer in journaled mode */
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
jbd_lock_bh_state(bh);
spin_lock(&journal->j_list_lock);
@@ -1769,7 +1821,7 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh)
jbd2_journal_put_journal_head(jh);
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
return ret;
} else {
/* There is no currently-running transaction. So the
@@ -1783,7 +1835,7 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh)
jbd2_journal_put_journal_head(jh);
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
return ret;
} else {
/* The orphan record's transaction has
@@ -1807,7 +1859,7 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh)
jbd2_journal_put_journal_head(jh);
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
return 0;
} else {
/* Good, the buffer belongs to the running transaction.
@@ -1826,7 +1878,7 @@ zap_buffer:
zap_buffer_no_jh:
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
zap_buffer_unlocked:
clear_buffer_dirty(bh);
J_ASSERT_BH(bh, !buffer_jbddirty(bh));
@@ -2133,9 +2185,9 @@ int jbd2_journal_begin_ordered_truncate(journal_t *journal,
/* Locks are here just to force reading of recent values, it is
* enough that the transaction was not committing before we started
* a transaction adding the inode to orphan list */
- spin_lock(&journal->j_state_lock);
+ read_lock(&journal->j_state_lock);
commit_trans = journal->j_committing_transaction;
- spin_unlock(&journal->j_state_lock);
+ read_unlock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
inode_trans = jinode->i_transaction;
spin_unlock(&journal->j_list_lock);
diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c
index a2d58c9..d258e26 100644
--- a/fs/jffs2/xattr.c
+++ b/fs/jffs2/xattr.c
@@ -626,7 +626,7 @@ void jffs2_xattr_free_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *i
static int check_xattr_ref_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
{
- /* success of check_xattr_ref_inode() means taht inode (ic) dose not have
+ /* success of check_xattr_ref_inode() means that inode (ic) dose not have
* duplicate name/value pairs. If duplicate name/value pair would be found,
* one will be removed.
*/
diff --git a/fs/mbcache.c b/fs/mbcache.c
index ec88ff3..e28f21b 100644
--- a/fs/mbcache.c
+++ b/fs/mbcache.c
@@ -115,7 +115,7 @@ mb_cache_indexes(struct mb_cache *cache)
* What the mbcache registers as to get shrunk dynamically.
*/
-static int mb_cache_shrink_fn(int nr_to_scan, gfp_t gfp_mask);
+static int mb_cache_shrink_fn(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask);
static struct shrinker mb_cache_shrinker = {
.shrink = mb_cache_shrink_fn,
@@ -191,13 +191,14 @@ forget:
* This function is called by the kernel memory management when memory
* gets low.
*
+ * @shrink: (ignored)
* @nr_to_scan: Number of objects to scan
* @gfp_mask: (ignored)
*
* Returns the number of objects which are present in the cache.
*/
static int
-mb_cache_shrink_fn(int nr_to_scan, gfp_t gfp_mask)
+mb_cache_shrink_fn(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask)
{
LIST_HEAD(free_list);
struct list_head *l, *ltmp;
diff --git a/fs/namei.c b/fs/namei.c
index 868d0cb..42d2d28 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -282,8 +282,7 @@ int inode_permission(struct inode *inode, int mask)
if (retval)
return retval;
- return security_inode_permission(inode,
- mask & (MAY_READ|MAY_WRITE|MAY_EXEC|MAY_APPEND));
+ return security_inode_permission(inode, mask);
}
/**
@@ -1484,8 +1483,7 @@ static int handle_truncate(struct path *path)
*/
error = locks_verify_locked(inode);
if (!error)
- error = security_path_truncate(path, 0,
- ATTR_MTIME|ATTR_CTIME|ATTR_OPEN);
+ error = security_path_truncate(path);
if (!error) {
error = do_truncate(path->dentry, 0,
ATTR_MTIME|ATTR_CTIME|ATTR_OPEN,
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index fa33851..1e634de 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -728,8 +728,8 @@ out_fput:
out_bdi:
/* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>:
*
- * The previously used put_filp(ncp_filp); was bogous, since
- * it doesn't proper unlocking.
+ * The previously used put_filp(ncp_filp); was bogus, since
+ * it doesn't perform proper unlocking.
*/
fput(ncp_filp);
out:
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index a43d07e..cc1bb33 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -61,8 +61,8 @@ config NFS_V3_ACL
If unsure, say N.
config NFS_V4
- bool "NFS client support for NFS version 4 (EXPERIMENTAL)"
- depends on NFS_FS && EXPERIMENTAL
+ bool "NFS client support for NFS version 4"
+ depends on NFS_FS
select RPCSEC_GSS_KRB5
help
This option enables support for version 4 of the NFS protocol
@@ -72,16 +72,16 @@ config NFS_V4
space programs which can be found in the Linux nfs-utils package,
available from http://linux-nfs.org/.
- If unsure, say N.
+ If unsure, say Y.
config NFS_V4_1
- bool "NFS client support for NFSv4.1 (DEVELOPER ONLY)"
+ bool "NFS client support for NFSv4.1 (EXPERIMENTAL)"
depends on NFS_V4 && EXPERIMENTAL
help
This option enables support for minor version 1 of the NFSv4 protocol
(draft-ietf-nfsv4-minorversion1) in the kernel's NFS client.
- Unless you're an NFS developer, say N.
+ If unsure, say N.
config ROOT_NFS
bool "Root file system on NFS"
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index a08770a..930d10f 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -37,8 +37,8 @@ __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *
if (inode == NULL)
goto out_putclient;
nfsi = NFS_I(inode);
- down_read(&nfsi->rwsem);
- delegation = nfsi->delegation;
+ rcu_read_lock();
+ delegation = rcu_dereference(nfsi->delegation);
if (delegation == NULL || (delegation->type & FMODE_WRITE) == 0)
goto out_iput;
res->size = i_size_read(inode);
@@ -53,7 +53,7 @@ __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *
args->bitmap[1];
res->status = 0;
out_iput:
- up_read(&nfsi->rwsem);
+ rcu_read_unlock();
iput(inode);
out_putclient:
nfs_put_client(clp);
@@ -62,16 +62,6 @@ out:
return res->status;
}
-static int (*nfs_validate_delegation_stateid(struct nfs_client *clp))(struct nfs_delegation *, const nfs4_stateid *)
-{
-#if defined(CONFIG_NFS_V4_1)
- if (clp->cl_minorversion > 0)
- return nfs41_validate_delegation_stateid;
-#endif
- return nfs4_validate_delegation_stateid;
-}
-
-
__be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy)
{
struct nfs_client *clp;
@@ -92,8 +82,7 @@ __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy)
inode = nfs_delegation_find_inode(clp, &args->fh);
if (inode != NULL) {
/* Set up a helper thread to actually return the delegation */
- switch (nfs_async_inode_return_delegation(inode, &args->stateid,
- nfs_validate_delegation_stateid(clp))) {
+ switch (nfs_async_inode_return_delegation(inode, &args->stateid)) {
case 0:
res = 0;
break;
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index d25b525..4e7df2a 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -150,6 +150,7 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
clp->cl_boot_time = CURRENT_TIME;
clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
clp->cl_minorversion = cl_init->minorversion;
+ clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
#endif
cred = rpc_lookup_machine_cred();
if (!IS_ERR(cred))
@@ -178,7 +179,7 @@ static void nfs4_clear_client_minor_version(struct nfs_client *clp)
clp->cl_session = NULL;
}
- clp->cl_call_sync = _nfs4_call_sync;
+ clp->cl_mvops = nfs_v4_minor_ops[0];
#endif /* CONFIG_NFS_V4_1 */
}
@@ -188,7 +189,7 @@ static void nfs4_clear_client_minor_version(struct nfs_client *clp)
static void nfs4_destroy_callback(struct nfs_client *clp)
{
if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
- nfs_callback_down(clp->cl_minorversion);
+ nfs_callback_down(clp->cl_mvops->minor_version);
}
static void nfs4_shutdown_client(struct nfs_client *clp)
@@ -1126,7 +1127,7 @@ static int nfs4_init_callback(struct nfs_client *clp)
return error;
}
- error = nfs_callback_up(clp->cl_minorversion,
+ error = nfs_callback_up(clp->cl_mvops->minor_version,
clp->cl_rpcclient->cl_xprt);
if (error < 0) {
dprintk("%s: failed to start callback. Error = %d\n",
@@ -1143,10 +1144,8 @@ static int nfs4_init_callback(struct nfs_client *clp)
*/
static int nfs4_init_client_minor_version(struct nfs_client *clp)
{
- clp->cl_call_sync = _nfs4_call_sync;
-
#if defined(CONFIG_NFS_V4_1)
- if (clp->cl_minorversion) {
+ if (clp->cl_mvops->minor_version) {
struct nfs4_session *session = NULL;
/*
* Create the session and mark it expired.
@@ -1158,7 +1157,13 @@ static int nfs4_init_client_minor_version(struct nfs_client *clp)
return -ENOMEM;
clp->cl_session = session;
- clp->cl_call_sync = _nfs4_call_sync_session;
+ /*
+ * The create session reply races with the server back
+ * channel probe. Mark the client NFS_CS_SESSION_INITING
+ * so that the client back channel can find the
+ * nfs_client struct
+ */
+ clp->cl_cons_state = NFS_CS_SESSION_INITING;
}
#endif /* CONFIG_NFS_V4_1 */
@@ -1454,7 +1459,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
data->authflavor,
parent_server->client->cl_xprt->prot,
parent_server->client->cl_timeout,
- parent_client->cl_minorversion);
+ parent_client->cl_mvops->minor_version);
if (error < 0)
goto error;
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 3016345..b9c3c43 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -268,14 +268,6 @@ out:
return status;
}
-/* Sync all data to disk upon delegation return */
-static void nfs_msync_inode(struct inode *inode)
-{
- filemap_fdatawrite(inode->i_mapping);
- nfs_wb_all(inode);
- filemap_fdatawait(inode->i_mapping);
-}
-
/*
* Basic procedure for returning a delegation to the server
*/
@@ -367,7 +359,7 @@ int nfs_inode_return_delegation(struct inode *inode)
delegation = nfs_detach_delegation_locked(nfsi, NULL, clp);
spin_unlock(&clp->cl_lock);
if (delegation != NULL) {
- nfs_msync_inode(inode);
+ nfs_wb_all(inode);
err = __nfs_inode_return_delegation(inode, delegation, 1);
}
}
@@ -471,9 +463,7 @@ void nfs_expire_unreferenced_delegations(struct nfs_client *clp)
/*
* Asynchronous delegation recall!
*/
-int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid,
- int (*validate_stateid)(struct nfs_delegation *delegation,
- const nfs4_stateid *stateid))
+int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid)
{
struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
struct nfs_delegation *delegation;
@@ -481,7 +471,7 @@ int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *s
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
- if (!validate_stateid(delegation, stateid)) {
+ if (!clp->cl_mvops->validate_stateid(delegation, stateid)) {
rcu_read_unlock();
return -ENOENT;
}
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index 69e7b814..2026304 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -34,9 +34,7 @@ enum {
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
int nfs_inode_return_delegation(struct inode *inode);
-int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid,
- int (*validate_stateid)(struct nfs_delegation *delegation,
- const nfs4_stateid *stateid));
+int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid);
void nfs_inode_return_delegation_noreclaim(struct inode *inode);
struct inode *nfs_delegation_find_inode(struct nfs_client *clp, const struct nfs_fh *fhandle);
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 782b431..29539ce 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1652,16 +1652,7 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
}
}
- /*
- * ... prune child dentries and writebacks if needed.
- */
- if (atomic_read(&old_dentry->d_count) > 1) {
- if (S_ISREG(old_inode->i_mode))
- nfs_wb_all(old_inode);
- shrink_dcache_parent(old_dentry);
- }
nfs_inode_return_delegation(old_inode);
-
if (new_inode != NULL)
nfs_inode_return_delegation(new_inode);
@@ -1710,7 +1701,7 @@ static void nfs_access_free_list(struct list_head *head)
}
}
-int nfs_access_cache_shrinker(int nr_to_scan, gfp_t gfp_mask)
+int nfs_access_cache_shrinker(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask)
{
LIST_HEAD(head);
struct nfs_inode *nfsi;
@@ -1953,7 +1944,7 @@ int nfs_permission(struct inode *inode, int mask)
if ((mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) == 0)
goto out;
/* Is this sys_access() ? */
- if (mask & MAY_ACCESS)
+ if (mask & (MAY_ACCESS | MAY_CHDIR))
goto force_lookup;
switch (inode->i_mode & S_IFMT) {
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index ad4cd31..064a809 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -69,6 +69,7 @@ struct nfs_direct_req {
/* I/O parameters */
struct nfs_open_context *ctx; /* file open context info */
+ struct nfs_lock_context *l_ctx; /* Lock context info */
struct kiocb * iocb; /* controlling i/o request */
struct inode * inode; /* target file of i/o */
@@ -160,6 +161,7 @@ static inline struct nfs_direct_req *nfs_direct_req_alloc(void)
INIT_LIST_HEAD(&dreq->rewrite_list);
dreq->iocb = NULL;
dreq->ctx = NULL;
+ dreq->l_ctx = NULL;
spin_lock_init(&dreq->lock);
atomic_set(&dreq->io_count, 0);
dreq->count = 0;
@@ -173,6 +175,8 @@ static void nfs_direct_req_free(struct kref *kref)
{
struct nfs_direct_req *dreq = container_of(kref, struct nfs_direct_req, kref);
+ if (dreq->l_ctx != NULL)
+ nfs_put_lock_context(dreq->l_ctx);
if (dreq->ctx != NULL)
put_nfs_open_context(dreq->ctx);
kmem_cache_free(nfs_direct_cachep, dreq);
@@ -336,6 +340,7 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq,
data->cred = msg.rpc_cred;
data->args.fh = NFS_FH(inode);
data->args.context = ctx;
+ data->args.lock_context = dreq->l_ctx;
data->args.offset = pos;
data->args.pgbase = pgbase;
data->args.pages = data->pagevec;
@@ -416,24 +421,28 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
static ssize_t nfs_direct_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
- ssize_t result = 0;
+ ssize_t result = -ENOMEM;
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct nfs_direct_req *dreq;
dreq = nfs_direct_req_alloc();
- if (!dreq)
- return -ENOMEM;
+ if (dreq == NULL)
+ goto out;
dreq->inode = inode;
dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
+ dreq->l_ctx = nfs_get_lock_context(dreq->ctx);
+ if (dreq->l_ctx == NULL)
+ goto out_release;
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
result = nfs_direct_read_schedule_iovec(dreq, iov, nr_segs, pos);
if (!result)
result = nfs_direct_wait(dreq);
+out_release:
nfs_direct_req_release(dreq);
-
+out:
return result;
}
@@ -574,6 +583,7 @@ static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq)
data->args.offset = 0;
data->args.count = 0;
data->args.context = dreq->ctx;
+ data->args.lock_context = dreq->l_ctx;
data->res.count = 0;
data->res.fattr = &data->fattr;
data->res.verf = &data->verf;
@@ -761,6 +771,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq,
data->cred = msg.rpc_cred;
data->args.fh = NFS_FH(inode);
data->args.context = ctx;
+ data->args.lock_context = dreq->l_ctx;
data->args.offset = pos;
data->args.pgbase = pgbase;
data->args.pages = data->pagevec;
@@ -845,7 +856,7 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos,
size_t count)
{
- ssize_t result = 0;
+ ssize_t result = -ENOMEM;
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct nfs_direct_req *dreq;
size_t wsize = NFS_SERVER(inode)->wsize;
@@ -853,7 +864,7 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, const struct iovec *iov,
dreq = nfs_direct_req_alloc();
if (!dreq)
- return -ENOMEM;
+ goto out;
nfs_alloc_commit_data(dreq);
if (dreq->commit_data == NULL || count < wsize)
@@ -861,14 +872,18 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, const struct iovec *iov,
dreq->inode = inode;
dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
+ dreq->l_ctx = nfs_get_lock_context(dreq->ctx);
+ if (dreq->l_ctx != NULL)
+ goto out_release;
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
result = nfs_direct_write_schedule_iovec(dreq, iov, nr_segs, pos, sync);
if (!result)
result = nfs_direct_wait(dreq);
+out_release:
nfs_direct_req_release(dreq);
-
+out:
return result;
}
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 36a5e74..2d141a7 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -27,6 +27,7 @@
#include <linux/pagemap.h>
#include <linux/aio.h>
#include <linux/gfp.h>
+#include <linux/swap.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -202,37 +203,11 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
}
/*
- * Helper for nfs_file_flush() and nfs_file_fsync()
- *
- * Notice that it clears the NFS_CONTEXT_ERROR_WRITE before synching to
- * disk, but it retrieves and clears ctx->error after synching, despite
- * the two being set at the same time in nfs_context_set_write_error().
- * This is because the former is used to notify the _next_ call to
- * nfs_file_write() that a write error occured, and hence cause it to
- * fall back to doing a synchronous write.
- */
-static int nfs_do_fsync(struct nfs_open_context *ctx, struct inode *inode)
-{
- int have_error, status;
- int ret = 0;
-
- have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
- status = nfs_wb_all(inode);
- have_error |= test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
- if (have_error)
- ret = xchg(&ctx->error, 0);
- if (!ret)
- ret = status;
- return ret;
-}
-
-/*
* Flush all dirty pages, and check for write errors.
*/
static int
nfs_file_flush(struct file *file, fl_owner_t id)
{
- struct nfs_open_context *ctx = nfs_file_open_context(file);
struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
@@ -245,7 +220,7 @@ nfs_file_flush(struct file *file, fl_owner_t id)
return 0;
/* Flush writes to the server and return any errors */
- return nfs_do_fsync(ctx, inode);
+ return vfs_fsync(file, 0);
}
static ssize_t
@@ -320,6 +295,13 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
* Flush any dirty pages for this process, and check for write errors.
* The return status from this call provides a reliable indication of
* whether any write errors occurred for this process.
+ *
+ * Notice that it clears the NFS_CONTEXT_ERROR_WRITE before synching to
+ * disk, but it retrieves and clears ctx->error after synching, despite
+ * the two being set at the same time in nfs_context_set_write_error().
+ * This is because the former is used to notify the _next_ call to
+ * nfs_file_write() that a write error occured, and hence cause it to
+ * fall back to doing a synchronous write.
*/
static int
nfs_file_fsync(struct file *file, int datasync)
@@ -327,13 +309,23 @@ nfs_file_fsync(struct file *file, int datasync)
struct dentry *dentry = file->f_path.dentry;
struct nfs_open_context *ctx = nfs_file_open_context(file);
struct inode *inode = dentry->d_inode;
+ int have_error, status;
+ int ret = 0;
+
dprintk("NFS: fsync file(%s/%s) datasync %d\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
datasync);
nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
- return nfs_do_fsync(ctx, inode);
+ have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
+ status = nfs_commit_inode(inode, FLUSH_SYNC);
+ have_error |= test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
+ if (have_error)
+ ret = xchg(&ctx->error, 0);
+ if (!ret)
+ ret = status;
+ return ret;
}
/*
@@ -493,11 +485,19 @@ static void nfs_invalidate_page(struct page *page, unsigned long offset)
*/
static int nfs_release_page(struct page *page, gfp_t gfp)
{
+ struct address_space *mapping = page->mapping;
+
dfprintk(PAGECACHE, "NFS: release_page(%p)\n", page);
/* Only do I/O if gfp is a superset of GFP_KERNEL */
- if ((gfp & GFP_KERNEL) == GFP_KERNEL)
- nfs_wb_page(page->mapping->host, page);
+ if (mapping && (gfp & GFP_KERNEL) == GFP_KERNEL) {
+ int how = FLUSH_SYNC;
+
+ /* Don't let kswapd deadlock waiting for OOM RPC calls */
+ if (current_is_kswapd())
+ how = 0;
+ nfs_commit_inode(mapping->host, how);
+ }
/* If PagePrivate() is set, then the page is not freeable */
if (PagePrivate(page))
return 0;
@@ -639,7 +639,7 @@ static ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
/* Return error values for O_DSYNC and IS_SYNC() */
if (result >= 0 && nfs_need_sync_write(iocb->ki_filp, inode)) {
- int err = nfs_do_fsync(nfs_file_open_context(iocb->ki_filp), inode);
+ int err = vfs_fsync(iocb->ki_filp, 0);
if (err < 0)
result = err;
}
@@ -675,7 +675,7 @@ static ssize_t nfs_file_splice_write(struct pipe_inode_info *pipe,
written = ret;
if (ret >= 0 && nfs_need_sync_write(filp, inode)) {
- int err = nfs_do_fsync(nfs_file_open_context(filp), inode);
+ int err = vfs_fsync(filp, 0);
if (err < 0)
ret = err;
}
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 099b351..581d8f0 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -413,10 +413,8 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
return 0;
/* Write all dirty data */
- if (S_ISREG(inode->i_mode)) {
- filemap_write_and_wait(inode->i_mapping);
+ if (S_ISREG(inode->i_mode))
nfs_wb_all(inode);
- }
fattr = nfs_alloc_fattr();
if (fattr == NULL)
@@ -530,6 +528,68 @@ out:
return err;
}
+static void nfs_init_lock_context(struct nfs_lock_context *l_ctx)
+{
+ atomic_set(&l_ctx->count, 1);
+ l_ctx->lockowner = current->files;
+ l_ctx->pid = current->tgid;
+ INIT_LIST_HEAD(&l_ctx->list);
+}
+
+static struct nfs_lock_context *__nfs_find_lock_context(struct nfs_open_context *ctx)
+{
+ struct nfs_lock_context *pos;
+
+ list_for_each_entry(pos, &ctx->lock_context.list, list) {
+ if (pos->lockowner != current->files)
+ continue;
+ if (pos->pid != current->tgid)
+ continue;
+ atomic_inc(&pos->count);
+ return pos;
+ }
+ return NULL;
+}
+
+struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx)
+{
+ struct nfs_lock_context *res, *new = NULL;
+ struct inode *inode = ctx->path.dentry->d_inode;
+
+ spin_lock(&inode->i_lock);
+ res = __nfs_find_lock_context(ctx);
+ if (res == NULL) {
+ spin_unlock(&inode->i_lock);
+ new = kmalloc(sizeof(*new), GFP_KERNEL);
+ if (new == NULL)
+ return NULL;
+ nfs_init_lock_context(new);
+ spin_lock(&inode->i_lock);
+ res = __nfs_find_lock_context(ctx);
+ if (res == NULL) {
+ list_add_tail(&new->list, &ctx->lock_context.list);
+ new->open_context = ctx;
+ res = new;
+ new = NULL;
+ }
+ }
+ spin_unlock(&inode->i_lock);
+ kfree(new);
+ return res;
+}
+
+void nfs_put_lock_context(struct nfs_lock_context *l_ctx)
+{
+ struct nfs_open_context *ctx = l_ctx->open_context;
+ struct inode *inode = ctx->path.dentry->d_inode;
+
+ if (!atomic_dec_and_lock(&l_ctx->count, &inode->i_lock))
+ return;
+ list_del(&l_ctx->list);
+ spin_unlock(&inode->i_lock);
+ kfree(l_ctx);
+}
+
/**
* nfs_close_context - Common close_context() routine NFSv2/v3
* @ctx: pointer to context
@@ -566,11 +626,11 @@ static struct nfs_open_context *alloc_nfs_open_context(struct path *path, struct
path_get(&ctx->path);
ctx->cred = get_rpccred(cred);
ctx->state = NULL;
- ctx->lockowner = current->files;
ctx->flags = 0;
ctx->error = 0;
ctx->dir_cookie = 0;
- atomic_set(&ctx->count, 1);
+ nfs_init_lock_context(&ctx->lock_context);
+ ctx->lock_context.open_context = ctx;
}
return ctx;
}
@@ -578,7 +638,7 @@ static struct nfs_open_context *alloc_nfs_open_context(struct path *path, struct
struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
{
if (ctx != NULL)
- atomic_inc(&ctx->count);
+ atomic_inc(&ctx->lock_context.count);
return ctx;
}
@@ -586,7 +646,7 @@ static void __put_nfs_open_context(struct nfs_open_context *ctx, int is_sync)
{
struct inode *inode = ctx->path.dentry->d_inode;
- if (!atomic_dec_and_lock(&ctx->count, &inode->i_lock))
+ if (!atomic_dec_and_lock(&ctx->lock_context.count, &inode->i_lock))
return;
list_del(&ctx->list);
spin_unlock(&inode->i_lock);
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index d8bd619..4c2150d 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -205,7 +205,8 @@ extern struct rpc_procinfo nfs4_procedures[];
void nfs_close_context(struct nfs_open_context *ctx, int is_sync);
/* dir.c */
-extern int nfs_access_cache_shrinker(int nr_to_scan, gfp_t gfp_mask);
+extern int nfs_access_cache_shrinker(struct shrinker *shrink,
+ int nr_to_scan, gfp_t gfp_mask);
/* inode.c */
extern struct workqueue_struct *nfsiod_workqueue;
@@ -369,10 +370,9 @@ unsigned int nfs_page_array_len(unsigned int base, size_t len)
* Helper for restarting RPC calls in the possible presence of NFSv4.1
* sessions.
*/
-static inline void nfs_restart_rpc(struct rpc_task *task, const struct nfs_client *clp)
+static inline int nfs_restart_rpc(struct rpc_task *task, const struct nfs_client *clp)
{
if (nfs4_has_session(clp))
- rpc_restart_call_prepare(task);
- else
- rpc_restart_call(task);
+ return rpc_restart_call_prepare(task);
+ return rpc_restart_call(task);
}
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index 81cf142..db8846a 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -233,7 +233,7 @@ nfs_xdr_removeargs(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs
static int
nfs_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 offset = (u32)args->offset;
u32 count = args->count;
@@ -393,8 +393,7 @@ nfs_xdr_symlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs_symlinkargs *arg
static int
nfs_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs_readdirargs *args)
{
- struct rpc_task *task = req->rq_task;
- struct rpc_auth *auth = task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 count = args->count;
@@ -575,7 +574,7 @@ nfs_xdr_diropres(struct rpc_rqst *req, __be32 *p, struct nfs_diropok *res)
static int
nfs_xdr_readlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs_readlinkargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
p = xdr_encode_fhandle(p, args->fh);
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 75dcfc7..9769704 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -330,7 +330,7 @@ nfs3_xdr_accessargs(struct rpc_rqst *req, __be32 *p, struct nfs3_accessargs *arg
static int
nfs3_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 count = args->count;
@@ -471,7 +471,7 @@ nfs3_xdr_linkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_linkargs *args)
static int
nfs3_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 count = args->count;
@@ -675,7 +675,7 @@ static int
nfs3_xdr_getaclargs(struct rpc_rqst *req, __be32 *p,
struct nfs3_getaclargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
p = xdr_encode_fhandle(p, args->fh);
@@ -802,7 +802,7 @@ nfs3_xdr_accessres(struct rpc_rqst *req, __be32 *p, struct nfs3_accessres *res)
static int
nfs3_xdr_readlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readlinkargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
p = xdr_encode_fhandle(p, args->fh);
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index c538c61..311e15c 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -45,10 +45,29 @@ enum nfs4_client_state {
NFS4CLNT_RECLAIM_NOGRACE,
NFS4CLNT_DELEGRETURN,
NFS4CLNT_SESSION_RESET,
- NFS4CLNT_SESSION_DRAINING,
NFS4CLNT_RECALL_SLOT,
};
+enum nfs4_session_state {
+ NFS4_SESSION_INITING,
+ NFS4_SESSION_DRAINING,
+};
+
+struct nfs4_minor_version_ops {
+ u32 minor_version;
+
+ int (*call_sync)(struct nfs_server *server,
+ struct rpc_message *msg,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply);
+ int (*validate_stateid)(struct nfs_delegation *,
+ const nfs4_stateid *);
+ const struct nfs4_state_recovery_ops *reboot_recovery_ops;
+ const struct nfs4_state_recovery_ops *nograce_recovery_ops;
+ const struct nfs4_state_maintenance_ops *state_renewal_ops;
+};
+
/*
* struct rpc_sequence ensures that RPC calls are sent in the exact
* order that they appear on the list.
@@ -89,7 +108,6 @@ struct nfs_unique_id {
*/
struct nfs4_state_owner {
struct nfs_unique_id so_owner_id;
- struct nfs_client *so_client;
struct nfs_server *so_server;
struct rb_node so_client_node;
@@ -99,7 +117,6 @@ struct nfs4_state_owner {
atomic_t so_count;
unsigned long so_flags;
struct list_head so_states;
- struct list_head so_delegations;
struct nfs_seqid_counter so_seqid;
struct rpc_sequence so_sequence;
};
@@ -125,10 +142,20 @@ enum {
* LOCK: one nfs4_state (LOCK) to hold the lock stateid nfs4_state(OPEN)
*/
+struct nfs4_lock_owner {
+ unsigned int lo_type;
+#define NFS4_ANY_LOCK_TYPE (0U)
+#define NFS4_FLOCK_LOCK_TYPE (1U << 0)
+#define NFS4_POSIX_LOCK_TYPE (1U << 1)
+ union {
+ fl_owner_t posix_owner;
+ pid_t flock_owner;
+ } lo_u;
+};
+
struct nfs4_lock_state {
struct list_head ls_locks; /* Other lock stateids */
struct nfs4_state * ls_state; /* Pointer to open state */
- fl_owner_t ls_owner; /* POSIX lock owner */
#define NFS_LOCK_INITIALIZED 1
int ls_flags;
struct nfs_seqid_counter ls_seqid;
@@ -136,6 +163,7 @@ struct nfs4_lock_state {
struct nfs_unique_id ls_id;
nfs4_stateid ls_stateid;
atomic_t ls_count;
+ struct nfs4_lock_owner ls_owner;
};
/* bits for nfs4_state->flags */
@@ -219,11 +247,15 @@ extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nam
extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
extern int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
struct nfs4_fs_locations *fs_locations, struct page *page);
+extern void nfs4_release_lockowner(const struct nfs4_lock_state *);
-extern struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[];
-extern struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[];
#if defined(CONFIG_NFS_V4_1)
-extern int nfs4_setup_sequence(struct nfs_client *clp,
+static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
+{
+ return server->nfs_client->cl_session;
+}
+
+extern int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
int cache_reply, struct rpc_task *task);
extern void nfs4_destroy_session(struct nfs4_session *session);
@@ -234,7 +266,12 @@ extern int nfs4_init_session(struct nfs_server *server);
extern int nfs4_proc_get_lease_time(struct nfs_client *clp,
struct nfs_fsinfo *fsinfo);
#else /* CONFIG_NFS_v4_1 */
-static inline int nfs4_setup_sequence(struct nfs_client *clp,
+static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
+{
+ return NULL;
+}
+
+static inline int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
int cache_reply, struct rpc_task *task)
{
@@ -247,7 +284,7 @@ static inline int nfs4_init_session(struct nfs_server *server)
}
#endif /* CONFIG_NFS_V4_1 */
-extern struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[];
+extern const struct nfs4_minor_version_ops *nfs_v4_minor_ops[];
extern const u32 nfs4_fattr_bitmap[2];
extern const u32 nfs4_statfs_bitmap[2];
@@ -284,7 +321,7 @@ extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags)
extern void nfs41_handle_recall_slot(struct nfs_client *clp);
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
-extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
+extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t, pid_t);
extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_mask);
extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 70015dd..7ffbb98 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -303,15 +303,19 @@ do_state_recovery:
}
-static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
+static void do_renew_lease(struct nfs_client *clp, unsigned long timestamp)
{
- struct nfs_client *clp = server->nfs_client;
spin_lock(&clp->cl_lock);
if (time_before(clp->cl_last_renewal,timestamp))
clp->cl_last_renewal = timestamp;
spin_unlock(&clp->cl_lock);
}
+static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
+{
+ do_renew_lease(server->nfs_client, timestamp);
+}
+
#if defined(CONFIG_NFS_V4_1)
/*
@@ -356,7 +360,7 @@ static void nfs41_check_drain_session_complete(struct nfs4_session *ses)
{
struct rpc_task *task;
- if (!test_bit(NFS4CLNT_SESSION_DRAINING, &ses->clp->cl_state)) {
+ if (!test_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
task = rpc_wake_up_next(&ses->fc_slot_table.slot_tbl_waitq);
if (task)
rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
@@ -370,12 +374,11 @@ static void nfs41_check_drain_session_complete(struct nfs4_session *ses)
complete(&ses->complete);
}
-static void nfs41_sequence_free_slot(const struct nfs_client *clp,
- struct nfs4_sequence_res *res)
+static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res)
{
struct nfs4_slot_table *tbl;
- tbl = &clp->cl_session->fc_slot_table;
+ tbl = &res->sr_session->fc_slot_table;
if (res->sr_slotid == NFS4_MAX_SLOT_TABLE) {
/* just wake up the next guy waiting since
* we may have not consumed a slot after all */
@@ -385,18 +388,17 @@ static void nfs41_sequence_free_slot(const struct nfs_client *clp,
spin_lock(&tbl->slot_tbl_lock);
nfs4_free_slot(tbl, res->sr_slotid);
- nfs41_check_drain_session_complete(clp->cl_session);
+ nfs41_check_drain_session_complete(res->sr_session);
spin_unlock(&tbl->slot_tbl_lock);
res->sr_slotid = NFS4_MAX_SLOT_TABLE;
}
-static void nfs41_sequence_done(struct nfs_client *clp,
- struct nfs4_sequence_res *res,
- int rpc_status)
+static int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)
{
unsigned long timestamp;
struct nfs4_slot_table *tbl;
struct nfs4_slot *slot;
+ struct nfs_client *clp;
/*
* sr_status remains 1 if an RPC level error occurred. The server
@@ -411,25 +413,51 @@ static void nfs41_sequence_done(struct nfs_client *clp,
if (res->sr_slotid == NFS4_MAX_SLOT_TABLE)
goto out;
+ tbl = &res->sr_session->fc_slot_table;
+ slot = tbl->slots + res->sr_slotid;
+
/* Check the SEQUENCE operation status */
- if (res->sr_status == 0) {
- tbl = &clp->cl_session->fc_slot_table;
- slot = tbl->slots + res->sr_slotid;
+ switch (res->sr_status) {
+ case 0:
/* Update the slot's sequence and clientid lease timer */
++slot->seq_nr;
timestamp = res->sr_renewal_time;
- spin_lock(&clp->cl_lock);
- if (time_before(clp->cl_last_renewal, timestamp))
- clp->cl_last_renewal = timestamp;
- spin_unlock(&clp->cl_lock);
+ clp = res->sr_session->clp;
+ do_renew_lease(clp, timestamp);
/* Check sequence flags */
if (atomic_read(&clp->cl_count) > 1)
nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags);
+ break;
+ case -NFS4ERR_DELAY:
+ /* The server detected a resend of the RPC call and
+ * returned NFS4ERR_DELAY as per Section 2.10.6.2
+ * of RFC5661.
+ */
+ dprintk("%s: slot=%d seq=%d: Operation in progress\n",
+ __func__, res->sr_slotid, slot->seq_nr);
+ goto out_retry;
+ default:
+ /* Just update the slot sequence no. */
+ ++slot->seq_nr;
}
out:
/* The session may be reset by one of the error handlers. */
dprintk("%s: Error %d free the slot \n", __func__, res->sr_status);
- nfs41_sequence_free_slot(clp, res);
+ nfs41_sequence_free_slot(res);
+ return 1;
+out_retry:
+ if (!rpc_restart_call(task))
+ goto out;
+ rpc_delay(task, NFS4_POLL_RETRY_MAX);
+ return 0;
+}
+
+static int nfs4_sequence_done(struct rpc_task *task,
+ struct nfs4_sequence_res *res)
+{
+ if (res->sr_session == NULL)
+ return 1;
+ return nfs41_sequence_done(task, res);
}
/*
@@ -480,12 +508,11 @@ static int nfs41_setup_sequence(struct nfs4_session *session,
if (res->sr_slotid != NFS4_MAX_SLOT_TABLE)
return 0;
- memset(res, 0, sizeof(*res));
res->sr_slotid = NFS4_MAX_SLOT_TABLE;
tbl = &session->fc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
- if (test_bit(NFS4CLNT_SESSION_DRAINING, &session->clp->cl_state) &&
+ if (test_bit(NFS4_SESSION_DRAINING, &session->session_state) &&
!rpc_task_has_priority(task, RPC_PRIORITY_PRIVILEGED)) {
/*
* The state manager will wait until the slot table is empty.
@@ -525,6 +552,7 @@ static int nfs41_setup_sequence(struct nfs4_session *session,
res->sr_session = session;
res->sr_slotid = slotid;
res->sr_renewal_time = jiffies;
+ res->sr_status_flags = 0;
/*
* sr_status is only set in decode_sequence, and so will remain
* set to 1 if an rpc level failure occurs.
@@ -533,33 +561,33 @@ static int nfs41_setup_sequence(struct nfs4_session *session,
return 0;
}
-int nfs4_setup_sequence(struct nfs_client *clp,
+int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int cache_reply,
struct rpc_task *task)
{
+ struct nfs4_session *session = nfs4_get_session(server);
int ret = 0;
+ if (session == NULL) {
+ args->sa_session = NULL;
+ res->sr_session = NULL;
+ goto out;
+ }
+
dprintk("--> %s clp %p session %p sr_slotid %d\n",
- __func__, clp, clp->cl_session, res->sr_slotid);
+ __func__, session->clp, session, res->sr_slotid);
- if (!nfs4_has_session(clp))
- goto out;
- ret = nfs41_setup_sequence(clp->cl_session, args, res, cache_reply,
+ ret = nfs41_setup_sequence(session, args, res, cache_reply,
task);
- if (ret && ret != -EAGAIN) {
- /* terminate rpc task */
- task->tk_status = ret;
- task->tk_action = NULL;
- }
out:
dprintk("<-- %s status=%d\n", __func__, ret);
return ret;
}
struct nfs41_call_sync_data {
- struct nfs_client *clp;
+ const struct nfs_server *seq_server;
struct nfs4_sequence_args *seq_args;
struct nfs4_sequence_res *seq_res;
int cache_reply;
@@ -569,9 +597,9 @@ static void nfs41_call_sync_prepare(struct rpc_task *task, void *calldata)
{
struct nfs41_call_sync_data *data = calldata;
- dprintk("--> %s data->clp->cl_session %p\n", __func__,
- data->clp->cl_session);
- if (nfs4_setup_sequence(data->clp, data->seq_args,
+ dprintk("--> %s data->seq_server %p\n", __func__, data->seq_server);
+
+ if (nfs4_setup_sequence(data->seq_server, data->seq_args,
data->seq_res, data->cache_reply, task))
return;
rpc_call_start(task);
@@ -587,7 +615,7 @@ static void nfs41_call_sync_done(struct rpc_task *task, void *calldata)
{
struct nfs41_call_sync_data *data = calldata;
- nfs41_sequence_done(data->clp, data->seq_res, task->tk_status);
+ nfs41_sequence_done(task, data->seq_res);
}
struct rpc_call_ops nfs41_call_sync_ops = {
@@ -600,8 +628,7 @@ struct rpc_call_ops nfs41_call_priv_sync_ops = {
.rpc_call_done = nfs41_call_sync_done,
};
-static int nfs4_call_sync_sequence(struct nfs_client *clp,
- struct rpc_clnt *clnt,
+static int nfs4_call_sync_sequence(struct nfs_server *server,
struct rpc_message *msg,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
@@ -611,13 +638,13 @@ static int nfs4_call_sync_sequence(struct nfs_client *clp,
int ret;
struct rpc_task *task;
struct nfs41_call_sync_data data = {
- .clp = clp,
+ .seq_server = server,
.seq_args = args,
.seq_res = res,
.cache_reply = cache_reply,
};
struct rpc_task_setup task_setup = {
- .rpc_client = clnt,
+ .rpc_client = server->client,
.rpc_message = msg,
.callback_ops = &nfs41_call_sync_ops,
.callback_data = &data
@@ -642,10 +669,15 @@ int _nfs4_call_sync_session(struct nfs_server *server,
struct nfs4_sequence_res *res,
int cache_reply)
{
- return nfs4_call_sync_sequence(server->nfs_client, server->client,
- msg, args, res, cache_reply, 0);
+ return nfs4_call_sync_sequence(server, msg, args, res, cache_reply, 0);
}
+#else
+static int nfs4_sequence_done(struct rpc_task *task,
+ struct nfs4_sequence_res *res)
+{
+ return 1;
+}
#endif /* CONFIG_NFS_V4_1 */
int _nfs4_call_sync(struct nfs_server *server,
@@ -659,18 +691,9 @@ int _nfs4_call_sync(struct nfs_server *server,
}
#define nfs4_call_sync(server, msg, args, res, cache_reply) \
- (server)->nfs_client->cl_call_sync((server), (msg), &(args)->seq_args, \
+ (server)->nfs_client->cl_mvops->call_sync((server), (msg), &(args)->seq_args, \
&(res)->seq_res, (cache_reply))
-static void nfs4_sequence_done(const struct nfs_server *server,
- struct nfs4_sequence_res *res, int rpc_status)
-{
-#ifdef CONFIG_NFS_V4_1
- if (nfs4_has_session(server->nfs_client))
- nfs41_sequence_done(server->nfs_client, res, rpc_status);
-#endif /* CONFIG_NFS_V4_1 */
-}
-
static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
{
struct nfs_inode *nfsi = NFS_I(dir);
@@ -745,19 +768,14 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct path *path,
p->o_arg.server = server;
p->o_arg.bitmask = server->attr_bitmask;
p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
- if (flags & O_EXCL) {
- if (nfs4_has_persistent_session(server->nfs_client)) {
- /* GUARDED */
- p->o_arg.u.attrs = &p->attrs;
- memcpy(&p->attrs, attrs, sizeof(p->attrs));
- } else { /* EXCLUSIVE4_1 */
- u32 *s = (u32 *) p->o_arg.u.verifier.data;
- s[0] = jiffies;
- s[1] = current->pid;
- }
- } else if (flags & O_CREAT) {
+ if (flags & O_CREAT) {
+ u32 *s;
+
p->o_arg.u.attrs = &p->attrs;
memcpy(&p->attrs, attrs, sizeof(p->attrs));
+ s = (u32 *) p->o_arg.u.verifier.data;
+ s[0] = jiffies;
+ s[1] = current->pid;
}
p->c_arg.fh = &p->o_res.fh;
p->c_arg.stateid = &p->o_res.stateid;
@@ -1255,8 +1273,6 @@ static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
struct nfs4_opendata *data = calldata;
data->rpc_status = task->tk_status;
- if (RPC_ASSASSINATED(task))
- return;
if (data->rpc_status == 0) {
memcpy(data->o_res.stateid.data, data->c_res.stateid.data,
sizeof(data->o_res.stateid.data));
@@ -1356,13 +1372,13 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
}
/* Update sequence id. */
data->o_arg.id = sp->so_owner_id.id;
- data->o_arg.clientid = sp->so_client->cl_clientid;
+ data->o_arg.clientid = sp->so_server->nfs_client->cl_clientid;
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
- if (nfs4_setup_sequence(data->o_arg.server->nfs_client,
+ if (nfs4_setup_sequence(data->o_arg.server,
&data->o_arg.seq_args,
&data->o_res.seq_res, 1, task))
return;
@@ -1385,11 +1401,9 @@ static void nfs4_open_done(struct rpc_task *task, void *calldata)
data->rpc_status = task->tk_status;
- nfs4_sequence_done(data->o_arg.server, &data->o_res.seq_res,
- task->tk_status);
-
- if (RPC_ASSASSINATED(task))
+ if (!nfs4_sequence_done(task, &data->o_res.seq_res))
return;
+
if (task->tk_status == 0) {
switch (data->o_res.f_attr->mode & S_IFMT) {
case S_IFREG:
@@ -1773,7 +1787,7 @@ static int _nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
if (nfs4_copy_delegation_stateid(&arg.stateid, inode)) {
/* Use that stateid */
} else if (state != NULL) {
- nfs4_copy_stateid(&arg.stateid, state, current->files);
+ nfs4_copy_stateid(&arg.stateid, state, current->files, current->tgid);
} else
memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid));
@@ -1838,8 +1852,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
struct nfs4_state *state = calldata->state;
struct nfs_server *server = NFS_SERVER(calldata->inode);
- nfs4_sequence_done(server, &calldata->res.seq_res, task->tk_status);
- if (RPC_ASSASSINATED(task))
+ if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
/* hmm. we are done with the inode, and in the process of freeing
* the state_owner. we keep this around to process errors
@@ -1903,7 +1916,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
nfs_fattr_init(calldata->res.fattr);
calldata->timestamp = jiffies;
- if (nfs4_setup_sequence((NFS_SERVER(calldata->inode))->nfs_client,
+ if (nfs4_setup_sequence(NFS_SERVER(calldata->inode),
&calldata->arg.seq_args, &calldata->res.seq_res,
1, task))
return;
@@ -2648,7 +2661,8 @@ static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
struct nfs_removeres *res = task->tk_msg.rpc_resp;
- nfs4_sequence_done(res->server, &res->seq_res, task->tk_status);
+ if (!nfs4_sequence_done(task, &res->seq_res))
+ return 0;
if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
@@ -3093,7 +3107,8 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_read_data *data)
dprintk("--> %s\n", __func__);
- nfs4_sequence_done(server, &data->res.seq_res, task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, server->nfs_client);
@@ -3116,8 +3131,8 @@ static int nfs4_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
struct inode *inode = data->inode;
- nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
if (nfs4_async_handle_error(task, NFS_SERVER(inode), data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
@@ -3145,8 +3160,9 @@ static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data)
{
struct inode *inode = data->inode;
- nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
+
if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
return -EAGAIN;
@@ -3196,10 +3212,7 @@ static void nfs4_renew_done(struct rpc_task *task, void *calldata)
nfs4_schedule_state_recovery(clp);
return;
}
- spin_lock(&clp->cl_lock);
- if (time_before(clp->cl_last_renewal,timestamp))
- clp->cl_last_renewal = timestamp;
- spin_unlock(&clp->cl_lock);
+ do_renew_lease(clp, timestamp);
}
static const struct rpc_call_ops nfs4_renew_ops = {
@@ -3240,10 +3253,7 @@ int nfs4_proc_renew(struct nfs_client *clp, struct rpc_cred *cred)
status = rpc_call_sync(clp->cl_rpcclient, &msg, 0);
if (status < 0)
return status;
- spin_lock(&clp->cl_lock);
- if (time_before(clp->cl_last_renewal,now))
- clp->cl_last_renewal = now;
- spin_unlock(&clp->cl_lock);
+ do_renew_lease(clp, now);
return 0;
}
@@ -3464,9 +3474,11 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
}
static int
-_nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs_client *clp, struct nfs4_state *state)
+nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
{
- if (!clp || task->tk_status >= 0)
+ struct nfs_client *clp = server->nfs_client;
+
+ if (task->tk_status >= 0)
return 0;
switch(task->tk_status) {
case -NFS4ERR_ADMIN_REVOKED:
@@ -3498,8 +3510,7 @@ _nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
return -EAGAIN;
#endif /* CONFIG_NFS_V4_1 */
case -NFS4ERR_DELAY:
- if (server)
- nfs_inc_server_stats(server, NFSIOS_DELAY);
+ nfs_inc_server_stats(server, NFSIOS_DELAY);
case -NFS4ERR_GRACE:
case -EKEYEXPIRED:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
@@ -3520,12 +3531,6 @@ do_state_recovery:
return -EAGAIN;
}
-static int
-nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
-{
- return _nfs4_async_handle_error(task, server, server->nfs_client, state);
-}
-
int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
unsigned short port, struct rpc_cred *cred,
struct nfs4_setclientid_res *res)
@@ -3641,8 +3646,8 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
{
struct nfs4_delegreturndata *data = calldata;
- nfs4_sequence_done(data->res.server, &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return;
switch (task->tk_status) {
case -NFS4ERR_STALE_STATEID:
@@ -3672,7 +3677,7 @@ static void nfs4_delegreturn_prepare(struct rpc_task *task, void *data)
d_data = (struct nfs4_delegreturndata *)data;
- if (nfs4_setup_sequence(d_data->res.server->nfs_client,
+ if (nfs4_setup_sequence(d_data->res.server,
&d_data->args.seq_args,
&d_data->res.seq_res, 1, task))
return;
@@ -3892,9 +3897,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
{
struct nfs4_unlockdata *calldata = data;
- nfs4_sequence_done(calldata->server, &calldata->res.seq_res,
- task->tk_status);
- if (RPC_ASSASSINATED(task))
+ if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
switch (task->tk_status) {
case 0:
@@ -3927,7 +3930,7 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data)
return;
}
calldata->timestamp = jiffies;
- if (nfs4_setup_sequence(calldata->server->nfs_client,
+ if (nfs4_setup_sequence(calldata->server,
&calldata->arg.seq_args,
&calldata->res.seq_res, 1, task))
return;
@@ -4082,7 +4085,8 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
} else
data->arg.new_lock_owner = 0;
data->timestamp = jiffies;
- if (nfs4_setup_sequence(data->server->nfs_client, &data->arg.seq_args,
+ if (nfs4_setup_sequence(data->server,
+ &data->arg.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);
@@ -4101,12 +4105,10 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata)
dprintk("%s: begin!\n", __func__);
- nfs4_sequence_done(data->server, &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return;
data->rpc_status = task->tk_status;
- if (RPC_ASSASSINATED(task))
- goto out;
if (data->arg.new_lock_owner != 0) {
if (data->rpc_status == 0)
nfs_confirm_seqid(&data->lsp->ls_seqid, 0);
@@ -4424,6 +4426,34 @@ out:
return err;
}
+static void nfs4_release_lockowner_release(void *calldata)
+{
+ kfree(calldata);
+}
+
+const struct rpc_call_ops nfs4_release_lockowner_ops = {
+ .rpc_release = nfs4_release_lockowner_release,
+};
+
+void nfs4_release_lockowner(const struct nfs4_lock_state *lsp)
+{
+ struct nfs_server *server = lsp->ls_state->owner->so_server;
+ struct nfs_release_lockowner_args *args;
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RELEASE_LOCKOWNER],
+ };
+
+ if (server->nfs_client->cl_mvops->minor_version != 0)
+ return;
+ args = kmalloc(sizeof(*args), GFP_NOFS);
+ if (!args)
+ return;
+ args->lock_owner.clientid = server->nfs_client->cl_clientid;
+ args->lock_owner.id = lsp->ls_id.id;
+ msg.rpc_argp = args;
+ rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, args);
+}
+
#define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
int nfs4_setxattr(struct dentry *dentry, const char *key, const void *buf,
@@ -4611,7 +4641,8 @@ static void nfs4_get_lease_time_done(struct rpc_task *task, void *calldata)
(struct nfs4_get_lease_time_data *)calldata;
dprintk("--> %s\n", __func__);
- nfs41_sequence_done(data->clp, &data->res->lr_seq_res, task->tk_status);
+ if (!nfs41_sequence_done(task, &data->res->lr_seq_res))
+ return;
switch (task->tk_status) {
case -NFS4ERR_DELAY:
case -NFS4ERR_GRACE:
@@ -4805,13 +4836,6 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
if (!session)
return NULL;
- /*
- * The create session reply races with the server back
- * channel probe. Mark the client NFS_CS_SESSION_INITING
- * so that the client back channel can find the
- * nfs_client struct
- */
- clp->cl_cons_state = NFS_CS_SESSION_INITING;
init_completion(&session->complete);
tbl = &session->fc_slot_table;
@@ -4824,6 +4848,8 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_wait_queue(&tbl->slot_tbl_waitq, "BackChannel Slot table");
+ session->session_state = 1<<NFS4_SESSION_INITING;
+
session->clp = clp;
return session;
}
@@ -5040,6 +5066,10 @@ int nfs4_init_session(struct nfs_server *server)
if (!nfs4_has_session(clp))
return 0;
+ session = clp->cl_session;
+ if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
+ return 0;
+
rsize = server->rsize;
if (rsize == 0)
rsize = NFS_MAX_FILE_IO_SIZE;
@@ -5047,7 +5077,6 @@ int nfs4_init_session(struct nfs_server *server)
if (wsize == 0)
wsize = NFS_MAX_FILE_IO_SIZE;
- session = clp->cl_session;
session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
@@ -5060,69 +5089,70 @@ int nfs4_init_session(struct nfs_server *server)
/*
* Renew the cl_session lease.
*/
-static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
-{
+struct nfs4_sequence_data {
+ struct nfs_client *clp;
struct nfs4_sequence_args args;
struct nfs4_sequence_res res;
-
- struct rpc_message msg = {
- .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
- .rpc_argp = &args,
- .rpc_resp = &res,
- .rpc_cred = cred,
- };
-
- args.sa_cache_this = 0;
-
- return nfs4_call_sync_sequence(clp, clp->cl_rpcclient, &msg, &args,
- &res, args.sa_cache_this, 1);
-}
+};
static void nfs41_sequence_release(void *data)
{
- struct nfs_client *clp = (struct nfs_client *)data;
+ struct nfs4_sequence_data *calldata = data;
+ struct nfs_client *clp = calldata->clp;
if (atomic_read(&clp->cl_count) > 1)
nfs4_schedule_state_renewal(clp);
nfs_put_client(clp);
+ kfree(calldata);
+}
+
+static int nfs41_sequence_handle_errors(struct rpc_task *task, struct nfs_client *clp)
+{
+ switch(task->tk_status) {
+ case -NFS4ERR_DELAY:
+ case -EKEYEXPIRED:
+ rpc_delay(task, NFS4_POLL_RETRY_MAX);
+ return -EAGAIN;
+ default:
+ nfs4_schedule_state_recovery(clp);
+ }
+ return 0;
}
static void nfs41_sequence_call_done(struct rpc_task *task, void *data)
{
- struct nfs_client *clp = (struct nfs_client *)data;
+ struct nfs4_sequence_data *calldata = data;
+ struct nfs_client *clp = calldata->clp;
- nfs41_sequence_done(clp, task->tk_msg.rpc_resp, task->tk_status);
+ if (!nfs41_sequence_done(task, task->tk_msg.rpc_resp))
+ return;
if (task->tk_status < 0) {
dprintk("%s ERROR %d\n", __func__, task->tk_status);
if (atomic_read(&clp->cl_count) == 1)
goto out;
- if (_nfs4_async_handle_error(task, NULL, clp, NULL)
- == -EAGAIN) {
- nfs_restart_rpc(task, clp);
+ if (nfs41_sequence_handle_errors(task, clp) == -EAGAIN) {
+ rpc_restart_call_prepare(task);
return;
}
}
dprintk("%s rpc_cred %p\n", __func__, task->tk_msg.rpc_cred);
out:
- kfree(task->tk_msg.rpc_argp);
- kfree(task->tk_msg.rpc_resp);
-
dprintk("<-- %s\n", __func__);
}
static void nfs41_sequence_prepare(struct rpc_task *task, void *data)
{
- struct nfs_client *clp;
+ struct nfs4_sequence_data *calldata = data;
+ struct nfs_client *clp = calldata->clp;
struct nfs4_sequence_args *args;
struct nfs4_sequence_res *res;
- clp = (struct nfs_client *)data;
args = task->tk_msg.rpc_argp;
res = task->tk_msg.rpc_resp;
- if (nfs4_setup_sequence(clp, args, res, 0, task))
+ if (nfs41_setup_sequence(clp->cl_session, args, res, 0, task))
return;
rpc_call_start(task);
}
@@ -5133,32 +5163,67 @@ static const struct rpc_call_ops nfs41_sequence_ops = {
.rpc_release = nfs41_sequence_release,
};
-static int nfs41_proc_async_sequence(struct nfs_client *clp,
- struct rpc_cred *cred)
+static struct rpc_task *_nfs41_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
{
- struct nfs4_sequence_args *args;
- struct nfs4_sequence_res *res;
+ struct nfs4_sequence_data *calldata;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
.rpc_cred = cred,
};
+ struct rpc_task_setup task_setup_data = {
+ .rpc_client = clp->cl_rpcclient,
+ .rpc_message = &msg,
+ .callback_ops = &nfs41_sequence_ops,
+ .flags = RPC_TASK_ASYNC | RPC_TASK_SOFT,
+ };
if (!atomic_inc_not_zero(&clp->cl_count))
- return -EIO;
- args = kzalloc(sizeof(*args), GFP_NOFS);
- res = kzalloc(sizeof(*res), GFP_NOFS);
- if (!args || !res) {
- kfree(args);
- kfree(res);
+ return ERR_PTR(-EIO);
+ calldata = kmalloc(sizeof(*calldata), GFP_NOFS);
+ if (calldata == NULL) {
nfs_put_client(clp);
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
- res->sr_slotid = NFS4_MAX_SLOT_TABLE;
- msg.rpc_argp = args;
- msg.rpc_resp = res;
+ calldata->res.sr_slotid = NFS4_MAX_SLOT_TABLE;
+ msg.rpc_argp = &calldata->args;
+ msg.rpc_resp = &calldata->res;
+ calldata->clp = clp;
+ task_setup_data.callback_data = calldata;
- return rpc_call_async(clp->cl_rpcclient, &msg, RPC_TASK_SOFT,
- &nfs41_sequence_ops, (void *)clp);
+ return rpc_run_task(&task_setup_data);
+}
+
+static int nfs41_proc_async_sequence(struct nfs_client *clp, struct rpc_cred *cred)
+{
+ struct rpc_task *task;
+ int ret = 0;
+
+ task = _nfs41_proc_sequence(clp, cred);
+ if (IS_ERR(task))
+ ret = PTR_ERR(task);
+ else
+ rpc_put_task(task);
+ dprintk("<-- %s status=%d\n", __func__, ret);
+ return ret;
+}
+
+static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
+{
+ struct rpc_task *task;
+ int ret;
+
+ task = _nfs41_proc_sequence(clp, cred);
+ if (IS_ERR(task)) {
+ ret = PTR_ERR(task);
+ goto out;
+ }
+ ret = rpc_wait_for_completion_task(task);
+ if (!ret)
+ ret = task->tk_status;
+ rpc_put_task(task);
+out:
+ dprintk("<-- %s status=%d\n", __func__, ret);
+ return ret;
}
struct nfs4_reclaim_complete_data {
@@ -5172,13 +5237,31 @@ static void nfs4_reclaim_complete_prepare(struct rpc_task *task, void *data)
struct nfs4_reclaim_complete_data *calldata = data;
rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
- if (nfs4_setup_sequence(calldata->clp, &calldata->arg.seq_args,
+ if (nfs41_setup_sequence(calldata->clp->cl_session,
+ &calldata->arg.seq_args,
&calldata->res.seq_res, 0, task))
return;
rpc_call_start(task);
}
+static int nfs41_reclaim_complete_handle_errors(struct rpc_task *task, struct nfs_client *clp)
+{
+ switch(task->tk_status) {
+ case 0:
+ case -NFS4ERR_COMPLETE_ALREADY:
+ case -NFS4ERR_WRONG_CRED: /* What to do here? */
+ break;
+ case -NFS4ERR_DELAY:
+ case -EKEYEXPIRED:
+ rpc_delay(task, NFS4_POLL_RETRY_MAX);
+ return -EAGAIN;
+ default:
+ nfs4_schedule_state_recovery(clp);
+ }
+ return 0;
+}
+
static void nfs4_reclaim_complete_done(struct rpc_task *task, void *data)
{
struct nfs4_reclaim_complete_data *calldata = data;
@@ -5186,32 +5269,13 @@ static void nfs4_reclaim_complete_done(struct rpc_task *task, void *data)
struct nfs4_sequence_res *res = &calldata->res.seq_res;
dprintk("--> %s\n", __func__);
- nfs41_sequence_done(clp, res, task->tk_status);
- switch (task->tk_status) {
- case 0:
- case -NFS4ERR_COMPLETE_ALREADY:
- break;
- case -NFS4ERR_BADSESSION:
- case -NFS4ERR_DEADSESSION:
- /*
- * Handle the session error, but do not retry the operation, as
- * we have no way of telling whether the clientid had to be
- * reset before we got our reply. If reset, a new wave of
- * reclaim operations will follow, containing their own reclaim
- * complete. We don't want our retry to get on the way of
- * recovery by incorrectly indicating to the server that we're
- * done reclaiming state since the process had to be restarted.
- */
- _nfs4_async_handle_error(task, NULL, clp, NULL);
- break;
- default:
- if (_nfs4_async_handle_error(
- task, NULL, clp, NULL) == -EAGAIN) {
- rpc_restart_call_prepare(task);
- return;
- }
- }
+ if (!nfs41_sequence_done(task, res))
+ return;
+ if (nfs41_reclaim_complete_handle_errors(task, clp) == -EAGAIN) {
+ rpc_restart_call_prepare(task);
+ return;
+ }
dprintk("<-- %s\n", __func__);
}
@@ -5325,28 +5389,30 @@ struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
};
#endif
-/*
- * Per minor version reboot and network partition recovery ops
- */
-
-struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[] = {
- &nfs40_reboot_recovery_ops,
-#if defined(CONFIG_NFS_V4_1)
- &nfs41_reboot_recovery_ops,
-#endif
+static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
+ .minor_version = 0,
+ .call_sync = _nfs4_call_sync,
+ .validate_stateid = nfs4_validate_delegation_stateid,
+ .reboot_recovery_ops = &nfs40_reboot_recovery_ops,
+ .nograce_recovery_ops = &nfs40_nograce_recovery_ops,
+ .state_renewal_ops = &nfs40_state_renewal_ops,
};
-struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[] = {
- &nfs40_nograce_recovery_ops,
#if defined(CONFIG_NFS_V4_1)
- &nfs41_nograce_recovery_ops,
-#endif
+static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
+ .minor_version = 1,
+ .call_sync = _nfs4_call_sync_session,
+ .validate_stateid = nfs41_validate_delegation_stateid,
+ .reboot_recovery_ops = &nfs41_reboot_recovery_ops,
+ .nograce_recovery_ops = &nfs41_nograce_recovery_ops,
+ .state_renewal_ops = &nfs41_state_renewal_ops,
};
+#endif
-struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[] = {
- &nfs40_state_renewal_ops,
+const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
+ [0] = &nfs_v4_0_minor_ops,
#if defined(CONFIG_NFS_V4_1)
- &nfs41_state_renewal_ops,
+ [1] = &nfs_v4_1_minor_ops,
#endif
};
diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c
index d87f103..72b6c58 100644
--- a/fs/nfs/nfs4renewd.c
+++ b/fs/nfs/nfs4renewd.c
@@ -54,14 +54,14 @@
void
nfs4_renew_state(struct work_struct *work)
{
- struct nfs4_state_maintenance_ops *ops;
+ const struct nfs4_state_maintenance_ops *ops;
struct nfs_client *clp =
container_of(work, struct nfs_client, cl_renewd.work);
struct rpc_cred *cred;
long lease;
unsigned long last, now;
- ops = nfs4_state_renewal_ops[clp->cl_minorversion];
+ ops = clp->cl_mvops->state_renewal_ops;
dprintk("%s: start\n", __func__);
/* Are there any active superblocks? */
if (list_empty(&clp->cl_superblocks))
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 34acf59..3e2f19b 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -145,7 +145,9 @@ static void nfs4_end_drain_session(struct nfs_client *clp)
struct nfs4_session *ses = clp->cl_session;
int max_slots;
- if (test_and_clear_bit(NFS4CLNT_SESSION_DRAINING, &clp->cl_state)) {
+ if (ses == NULL)
+ return;
+ if (test_and_clear_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
spin_lock(&ses->fc_slot_table.slot_tbl_lock);
max_slots = ses->fc_slot_table.max_slots;
while (max_slots--) {
@@ -167,7 +169,7 @@ static int nfs4_begin_drain_session(struct nfs_client *clp)
struct nfs4_slot_table *tbl = &ses->fc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
- set_bit(NFS4CLNT_SESSION_DRAINING, &clp->cl_state);
+ set_bit(NFS4_SESSION_DRAINING, &ses->session_state);
if (tbl->highest_used_slotid != -1) {
INIT_COMPLETION(ses->complete);
spin_unlock(&tbl->slot_tbl_lock);
@@ -371,7 +373,6 @@ nfs4_alloc_state_owner(void)
return NULL;
spin_lock_init(&sp->so_lock);
INIT_LIST_HEAD(&sp->so_states);
- INIT_LIST_HEAD(&sp->so_delegations);
rpc_init_wait_queue(&sp->so_sequence.wait, "Seqid_waitqueue");
sp->so_seqid.sequence = &sp->so_sequence;
spin_lock_init(&sp->so_sequence.lock);
@@ -384,7 +385,7 @@ static void
nfs4_drop_state_owner(struct nfs4_state_owner *sp)
{
if (!RB_EMPTY_NODE(&sp->so_client_node)) {
- struct nfs_client *clp = sp->so_client;
+ struct nfs_client *clp = sp->so_server->nfs_client;
spin_lock(&clp->cl_lock);
rb_erase(&sp->so_client_node, &clp->cl_state_owners);
@@ -406,7 +407,6 @@ struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server, struct
new = nfs4_alloc_state_owner();
if (new == NULL)
return NULL;
- new->so_client = clp;
new->so_server = server;
new->so_cred = cred;
spin_lock(&clp->cl_lock);
@@ -423,7 +423,7 @@ struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server, struct
void nfs4_put_state_owner(struct nfs4_state_owner *sp)
{
- struct nfs_client *clp = sp->so_client;
+ struct nfs_client *clp = sp->so_server->nfs_client;
struct rpc_cred *cred = sp->so_cred;
if (!atomic_dec_and_lock(&sp->so_count, &clp->cl_lock))
@@ -602,12 +602,21 @@ void nfs4_close_sync(struct path *path, struct nfs4_state *state, fmode_t fmode)
* that is compatible with current->files
*/
static struct nfs4_lock_state *
-__nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
+__nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid, unsigned int type)
{
struct nfs4_lock_state *pos;
list_for_each_entry(pos, &state->lock_states, ls_locks) {
- if (pos->ls_owner != fl_owner)
+ if (type != NFS4_ANY_LOCK_TYPE && pos->ls_owner.lo_type != type)
continue;
+ switch (pos->ls_owner.lo_type) {
+ case NFS4_POSIX_LOCK_TYPE:
+ if (pos->ls_owner.lo_u.posix_owner != fl_owner)
+ continue;
+ break;
+ case NFS4_FLOCK_LOCK_TYPE:
+ if (pos->ls_owner.lo_u.flock_owner != fl_pid)
+ continue;
+ }
atomic_inc(&pos->ls_count);
return pos;
}
@@ -619,10 +628,10 @@ __nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
* exists, return an uninitialized one.
*
*/
-static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
+static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid, unsigned int type)
{
struct nfs4_lock_state *lsp;
- struct nfs_client *clp = state->owner->so_client;
+ struct nfs_client *clp = state->owner->so_server->nfs_client;
lsp = kzalloc(sizeof(*lsp), GFP_NOFS);
if (lsp == NULL)
@@ -633,7 +642,18 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
lsp->ls_seqid.sequence = &lsp->ls_sequence;
atomic_set(&lsp->ls_count, 1);
lsp->ls_state = state;
- lsp->ls_owner = fl_owner;
+ lsp->ls_owner.lo_type = type;
+ switch (lsp->ls_owner.lo_type) {
+ case NFS4_FLOCK_LOCK_TYPE:
+ lsp->ls_owner.lo_u.flock_owner = fl_pid;
+ break;
+ case NFS4_POSIX_LOCK_TYPE:
+ lsp->ls_owner.lo_u.posix_owner = fl_owner;
+ break;
+ default:
+ kfree(lsp);
+ return NULL;
+ }
spin_lock(&clp->cl_lock);
nfs_alloc_unique_id(&clp->cl_lockowner_id, &lsp->ls_id, 1, 64);
spin_unlock(&clp->cl_lock);
@@ -643,7 +663,7 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
static void nfs4_free_lock_state(struct nfs4_lock_state *lsp)
{
- struct nfs_client *clp = lsp->ls_state->owner->so_client;
+ struct nfs_client *clp = lsp->ls_state->owner->so_server->nfs_client;
spin_lock(&clp->cl_lock);
nfs_free_unique_id(&clp->cl_lockowner_id, &lsp->ls_id);
@@ -657,13 +677,13 @@ static void nfs4_free_lock_state(struct nfs4_lock_state *lsp)
* exists, return an uninitialized one.
*
*/
-static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner)
+static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner, pid_t pid, unsigned int type)
{
struct nfs4_lock_state *lsp, *new = NULL;
for(;;) {
spin_lock(&state->state_lock);
- lsp = __nfs4_find_lock_state(state, owner);
+ lsp = __nfs4_find_lock_state(state, owner, pid, type);
if (lsp != NULL)
break;
if (new != NULL) {
@@ -674,7 +694,7 @@ static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_
break;
}
spin_unlock(&state->state_lock);
- new = nfs4_alloc_lock_state(state, owner);
+ new = nfs4_alloc_lock_state(state, owner, pid, type);
if (new == NULL)
return NULL;
}
@@ -701,6 +721,8 @@ void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
if (list_empty(&state->lock_states))
clear_bit(LK_STATE_IN_USE, &state->flags);
spin_unlock(&state->state_lock);
+ if (lsp->ls_flags & NFS_LOCK_INITIALIZED)
+ nfs4_release_lockowner(lsp);
nfs4_free_lock_state(lsp);
}
@@ -728,7 +750,12 @@ int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl)
if (fl->fl_ops != NULL)
return 0;
- lsp = nfs4_get_lock_state(state, fl->fl_owner);
+ if (fl->fl_flags & FL_POSIX)
+ lsp = nfs4_get_lock_state(state, fl->fl_owner, 0, NFS4_POSIX_LOCK_TYPE);
+ else if (fl->fl_flags & FL_FLOCK)
+ lsp = nfs4_get_lock_state(state, 0, fl->fl_pid, NFS4_FLOCK_LOCK_TYPE);
+ else
+ return -EINVAL;
if (lsp == NULL)
return -ENOMEM;
fl->fl_u.nfs4_fl.owner = lsp;
@@ -740,7 +767,7 @@ int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl)
* Byte-range lock aware utility to initialize the stateid of read/write
* requests.
*/
-void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t fl_owner)
+void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid)
{
struct nfs4_lock_state *lsp;
int seq;
@@ -753,7 +780,7 @@ void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t f
return;
spin_lock(&state->state_lock);
- lsp = __nfs4_find_lock_state(state, fl_owner);
+ lsp = __nfs4_find_lock_state(state, fl_owner, fl_pid, NFS4_ANY_LOCK_TYPE);
if (lsp != NULL && (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0)
memcpy(dst, &lsp->ls_stateid, sizeof(*dst));
spin_unlock(&state->state_lock);
@@ -1041,11 +1068,11 @@ restart:
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_RECLAIM_BAD:
case -NFS4ERR_RECLAIM_CONFLICT:
- nfs4_state_mark_reclaim_nograce(sp->so_client, state);
+ nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);
break;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_NO_GRACE:
- nfs4_state_mark_reclaim_nograce(sp->so_client, state);
+ nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
@@ -1120,8 +1147,7 @@ static void nfs4_state_end_reclaim_reboot(struct nfs_client *clp)
if (!test_and_clear_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
return;
- nfs4_reclaim_complete(clp,
- nfs4_reboot_recovery_ops[clp->cl_minorversion]);
+ nfs4_reclaim_complete(clp, clp->cl_mvops->reboot_recovery_ops);
for (pos = rb_first(&clp->cl_state_owners); pos != NULL; pos = rb_next(pos)) {
sp = rb_entry(pos, struct nfs4_state_owner, so_client_node);
@@ -1211,8 +1237,8 @@ restart:
static int nfs4_check_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
- struct nfs4_state_maintenance_ops *ops =
- nfs4_state_renewal_ops[clp->cl_minorversion];
+ const struct nfs4_state_maintenance_ops *ops =
+ clp->cl_mvops->state_renewal_ops;
int status = -NFS4ERR_EXPIRED;
/* Is the client already known to have an expired lease? */
@@ -1235,8 +1261,8 @@ out:
static int nfs4_reclaim_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
- struct nfs4_state_recovery_ops *ops =
- nfs4_reboot_recovery_ops[clp->cl_minorversion];
+ const struct nfs4_state_recovery_ops *ops =
+ clp->cl_mvops->reboot_recovery_ops;
int status = -ENOENT;
cred = ops->get_clid_cred(clp);
@@ -1444,7 +1470,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
/* First recover reboot state... */
if (test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) {
status = nfs4_do_reclaim(clp,
- nfs4_reboot_recovery_ops[clp->cl_minorversion]);
+ clp->cl_mvops->reboot_recovery_ops);
if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state))
continue;
@@ -1458,7 +1484,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
/* Now recover expired state... */
if (test_and_clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state)) {
status = nfs4_do_reclaim(clp,
- nfs4_nograce_recovery_ops[clp->cl_minorversion]);
+ clp->cl_mvops->nograce_recovery_ops);
if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state) ||
test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 65c8dae..08ef912 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -202,14 +202,17 @@ static int nfs4_stat_to_errno(int);
#define encode_link_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
+#define encode_lockowner_maxsz (7)
#define encode_lock_maxsz (op_encode_hdr_maxsz + \
7 + \
- 1 + encode_stateid_maxsz + 8)
+ 1 + encode_stateid_maxsz + 1 + \
+ encode_lockowner_maxsz)
#define decode_lock_denied_maxsz \
(8 + decode_lockowner_maxsz)
#define decode_lock_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
-#define encode_lockt_maxsz (op_encode_hdr_maxsz + 12)
+#define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
+ encode_lockowner_maxsz)
#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
@@ -217,6 +220,11 @@ static int nfs4_stat_to_errno(int);
4)
#define decode_locku_maxsz (op_decode_hdr_maxsz + \
decode_stateid_maxsz)
+#define encode_release_lockowner_maxsz \
+ (op_encode_hdr_maxsz + \
+ encode_lockowner_maxsz)
+#define decode_release_lockowner_maxsz \
+ (op_decode_hdr_maxsz)
#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
@@ -471,6 +479,12 @@ static int nfs4_stat_to_errno(int);
decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_locku_maxsz)
+#define NFS4_enc_release_lockowner_sz \
+ (compound_encode_hdr_maxsz + \
+ encode_lockowner_maxsz)
+#define NFS4_dec_release_lockowner_sz \
+ (compound_decode_hdr_maxsz + \
+ decode_lockowner_maxsz)
#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
@@ -744,7 +758,7 @@ static void encode_compound_hdr(struct xdr_stream *xdr,
struct compound_hdr *hdr)
{
__be32 *p;
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
/* initialize running count of expected bytes in reply.
* NOTE: the replied tag SHOULD be the same is the one sent,
@@ -1042,6 +1056,17 @@ static inline uint64_t nfs4_lock_length(struct file_lock *fl)
return fl->fl_end - fl->fl_start + 1;
}
+static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
+{
+ __be32 *p;
+
+ p = reserve_space(xdr, 28);
+ p = xdr_encode_hyper(p, lowner->clientid);
+ *p++ = cpu_to_be32(16);
+ p = xdr_encode_opaque_fixed(p, "lock id:", 8);
+ xdr_encode_hyper(p, lowner->id);
+}
+
/*
* opcode,type,reclaim,offset,length,new_lock_owner = 32
* open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
@@ -1058,14 +1083,11 @@ static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
*p = cpu_to_be32(args->new_lock_owner);
if (args->new_lock_owner){
- p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32);
+ p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
*p++ = cpu_to_be32(args->open_seqid->sequence->counter);
p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
*p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
- p = xdr_encode_hyper(p, args->lock_owner.clientid);
- *p++ = cpu_to_be32(16);
- p = xdr_encode_opaque_fixed(p, "lock id:", 8);
- xdr_encode_hyper(p, args->lock_owner.id);
+ encode_lockowner(xdr, &args->lock_owner);
}
else {
p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
@@ -1080,15 +1102,12 @@ static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *ar
{
__be32 *p;
- p = reserve_space(xdr, 52);
+ p = reserve_space(xdr, 24);
*p++ = cpu_to_be32(OP_LOCKT);
*p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
p = xdr_encode_hyper(p, args->fl->fl_start);
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
- p = xdr_encode_hyper(p, args->lock_owner.clientid);
- *p++ = cpu_to_be32(16);
- p = xdr_encode_opaque_fixed(p, "lock id:", 8);
- xdr_encode_hyper(p, args->lock_owner.id);
+ encode_lockowner(xdr, &args->lock_owner);
hdr->nops++;
hdr->replen += decode_lockt_maxsz;
}
@@ -1108,6 +1127,17 @@ static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *ar
hdr->replen += decode_locku_maxsz;
}
+static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
+{
+ __be32 *p;
+
+ p = reserve_space(xdr, 4);
+ *p = cpu_to_be32(OP_RELEASE_LOCKOWNER);
+ encode_lockowner(xdr, lowner);
+ hdr->nops++;
+ hdr->replen += decode_release_lockowner_maxsz;
+}
+
static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
int len = name->len;
@@ -1172,7 +1202,7 @@ static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_op
break;
default:
clp = arg->server->nfs_client;
- if (clp->cl_minorversion > 0) {
+ if (clp->cl_mvops->minor_version > 0) {
if (nfs4_has_persistent_session(clp)) {
*p = cpu_to_be32(NFS4_CREATE_GUARDED);
encode_attrs(xdr, arg->u.attrs, arg->server);
@@ -1324,14 +1354,14 @@ static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
hdr->replen += decode_putrootfh_maxsz;
}
-static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
+static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx)
{
nfs4_stateid stateid;
__be32 *p;
p = reserve_space(xdr, NFS4_STATEID_SIZE);
if (ctx->state != NULL) {
- nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
+ nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid);
xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
} else
xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
@@ -1344,7 +1374,7 @@ static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args,
p = reserve_space(xdr, 4);
*p = cpu_to_be32(OP_READ);
- encode_stateid(xdr, args->context);
+ encode_stateid(xdr, args->context, args->lock_context);
p = reserve_space(xdr, 12);
p = xdr_encode_hyper(p, args->offset);
@@ -1523,7 +1553,7 @@ static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *arg
p = reserve_space(xdr, 4);
*p = cpu_to_be32(OP_WRITE);
- encode_stateid(xdr, args->context);
+ encode_stateid(xdr, args->context, args->lock_context);
p = reserve_space(xdr, 16);
p = xdr_encode_hyper(p, args->offset);
@@ -1704,7 +1734,7 @@ static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
{
#if defined(CONFIG_NFS_V4_1)
if (args->sa_session)
- return args->sa_session->clp->cl_minorversion;
+ return args->sa_session->clp->cl_mvops->minor_version;
#endif /* CONFIG_NFS_V4_1 */
return 0;
}
@@ -2048,6 +2078,20 @@ static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_
return 0;
}
+static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .minorversion = 0,
+ };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_release_lockowner(&xdr, &args->lock_owner, &hdr);
+ encode_nops(&hdr);
+ return 0;
+}
+
/*
* Encode a READLINK request
*/
@@ -2395,7 +2439,7 @@ static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p,
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .minorversion = args->client->cl_minorversion,
+ .minorversion = args->client->cl_mvops->minor_version,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@@ -2413,7 +2457,7 @@ static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p,
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .minorversion = args->client->cl_minorversion,
+ .minorversion = args->client->cl_mvops->minor_version,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@@ -2431,7 +2475,7 @@ static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p,
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .minorversion = session->clp->cl_minorversion,
+ .minorversion = session->clp->cl_mvops->minor_version,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@@ -3973,6 +4017,11 @@ static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
return status;
}
+static int decode_release_lockowner(struct xdr_stream *xdr)
+{
+ return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
+}
+
static int decode_lookup(struct xdr_stream *xdr)
{
return decode_op_hdr(xdr, OP_LOOKUP);
@@ -5259,6 +5308,19 @@ out:
return status;
}
+static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (!status)
+ status = decode_release_lockowner(&xdr);
+ return status;
+}
+
/*
* Decode READLINK response
*/
@@ -5866,6 +5928,7 @@ struct rpc_procinfo nfs4_procedures[] = {
PROC(GETACL, enc_getacl, dec_getacl),
PROC(SETACL, enc_setacl, dec_setacl),
PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
+ PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
#if defined(CONFIG_NFS_V4_1)
PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
PROC(CREATE_SESSION, enc_create_session, dec_create_session),
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index 6bd19d8..df101d9 100644
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -105,7 +105,7 @@ static char nfs_root_name[256] __initdata = "";
static __be32 servaddr __initdata = 0;
/* Name of directory to mount */
-static char nfs_export_path[NFS_MAXPATHLEN] __initdata = { 0, };
+static char nfs_export_path[NFS_MAXPATHLEN + 1] __initdata = { 0, };
/* NFS-related data */
static struct nfs_mount_data nfs_data __initdata = { 0, };/* NFS mount info */
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index a3654e5..9194902 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -79,6 +79,7 @@ nfs_create_request(struct nfs_open_context *ctx, struct inode *inode,
req->wb_pgbase = offset;
req->wb_bytes = count;
req->wb_context = get_nfs_open_context(ctx);
+ req->wb_lock_context = nfs_get_lock_context(ctx);
kref_init(&req->wb_kref);
return req;
}
@@ -141,11 +142,16 @@ void nfs_clear_request(struct nfs_page *req)
{
struct page *page = req->wb_page;
struct nfs_open_context *ctx = req->wb_context;
+ struct nfs_lock_context *l_ctx = req->wb_lock_context;
if (page != NULL) {
page_cache_release(page);
req->wb_page = NULL;
}
+ if (l_ctx != NULL) {
+ nfs_put_lock_context(l_ctx);
+ req->wb_lock_context = NULL;
+ }
if (ctx != NULL) {
put_nfs_open_context(ctx);
req->wb_context = NULL;
@@ -235,7 +241,7 @@ static int nfs_can_coalesce_requests(struct nfs_page *prev,
{
if (req->wb_context->cred != prev->wb_context->cred)
return 0;
- if (req->wb_context->lockowner != prev->wb_context->lockowner)
+ if (req->wb_lock_context->lockowner != prev->wb_lock_context->lockowner)
return 0;
if (req->wb_context->state != prev->wb_context->state)
return 0;
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 6e2b06e..87adc27 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -190,6 +190,7 @@ static int nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data,
data->args.pages = data->pagevec;
data->args.count = count;
data->args.context = get_nfs_open_context(req->wb_context);
+ data->args.lock_context = req->wb_lock_context;
data->res.fattr = &data->fattr;
data->res.count = count;
@@ -410,7 +411,7 @@ void nfs_read_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_read_data *data = calldata;
- if (nfs4_setup_sequence(NFS_SERVER(data->inode)->nfs_client,
+ if (nfs4_setup_sequence(NFS_SERVER(data->inode),
&data->args.seq_args, &data->res.seq_res,
0, task))
return;
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index f9df16d..f1ae39f 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -546,6 +546,9 @@ static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,
{
struct sockaddr *sap = (struct sockaddr *)&nfss->mountd_address;
+ if (nfss->flags & NFS_MOUNT_LEGACY_INTERFACE)
+ return;
+
switch (sap->sa_family) {
case AF_INET: {
struct sockaddr_in *sin = (struct sockaddr_in *)sap;
@@ -1780,6 +1783,7 @@ static int nfs_validate_mount_data(void *options,
* can deal with.
*/
args->flags = data->flags & NFS_MOUNT_FLAGMASK;
+ args->flags |= NFS_MOUNT_LEGACY_INTERFACE;
args->rsize = data->rsize;
args->wsize = data->wsize;
args->timeo = data->timeo;
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index a2242af..2f84ada 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -110,7 +110,7 @@ void nfs_unlink_prepare(struct rpc_task *task, void *calldata)
struct nfs_unlinkdata *data = calldata;
struct nfs_server *server = NFS_SERVER(data->dir);
- if (nfs4_setup_sequence(server->nfs_client, &data->args.seq_args,
+ if (nfs4_setup_sequence(server, &data->args.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 91679e2..874972d 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -222,7 +222,7 @@ static void nfs_end_page_writeback(struct page *page)
clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC);
}
-static struct nfs_page *nfs_find_and_lock_request(struct page *page)
+static struct nfs_page *nfs_find_and_lock_request(struct page *page, bool nonblock)
{
struct inode *inode = page->mapping->host;
struct nfs_page *req;
@@ -241,7 +241,10 @@ static struct nfs_page *nfs_find_and_lock_request(struct page *page)
* request as dirty (in which case we don't care).
*/
spin_unlock(&inode->i_lock);
- ret = nfs_wait_on_request(req);
+ if (!nonblock)
+ ret = nfs_wait_on_request(req);
+ else
+ ret = -EAGAIN;
nfs_release_request(req);
if (ret != 0)
return ERR_PTR(ret);
@@ -256,12 +259,12 @@ static struct nfs_page *nfs_find_and_lock_request(struct page *page)
* May return an error if the user signalled nfs_wait_on_request().
*/
static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
- struct page *page)
+ struct page *page, bool nonblock)
{
struct nfs_page *req;
int ret = 0;
- req = nfs_find_and_lock_request(page);
+ req = nfs_find_and_lock_request(page, nonblock);
if (!req)
goto out;
ret = PTR_ERR(req);
@@ -283,12 +286,20 @@ out:
static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, struct nfs_pageio_descriptor *pgio)
{
struct inode *inode = page->mapping->host;
+ int ret;
nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE);
nfs_add_stats(inode, NFSIOS_WRITEPAGES, 1);
nfs_pageio_cond_complete(pgio, page->index);
- return nfs_page_async_flush(pgio, page);
+ ret = nfs_page_async_flush(pgio, page,
+ wbc->sync_mode == WB_SYNC_NONE ||
+ wbc->nonblocking != 0);
+ if (ret == -EAGAIN) {
+ redirty_page_for_writepage(wbc, page);
+ ret = 0;
+ }
+ return ret;
}
/*
@@ -689,7 +700,9 @@ int nfs_flush_incompatible(struct file *file, struct page *page)
req = nfs_page_find_request(page);
if (req == NULL)
return 0;
- do_flush = req->wb_page != page || req->wb_context != ctx;
+ do_flush = req->wb_page != page || req->wb_context != ctx ||
+ req->wb_lock_context->lockowner != current->files ||
+ req->wb_lock_context->pid != current->tgid;
nfs_release_request(req);
if (!do_flush)
return 0;
@@ -813,6 +826,7 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
data->args.pages = data->pagevec;
data->args.count = count;
data->args.context = get_nfs_open_context(req->wb_context);
+ data->args.lock_context = req->wb_lock_context;
data->args.stable = NFS_UNSTABLE;
if (how & FLUSH_STABLE) {
data->args.stable = NFS_DATA_SYNC;
@@ -1036,9 +1050,9 @@ out:
void nfs_write_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_write_data *data = calldata;
- struct nfs_client *clp = (NFS_SERVER(data->inode))->nfs_client;
- if (nfs4_setup_sequence(clp, &data->args.seq_args,
+ if (nfs4_setup_sequence(NFS_SERVER(data->inode),
+ &data->args.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);
@@ -1379,7 +1393,7 @@ static const struct rpc_call_ops nfs_commit_ops = {
.rpc_release = nfs_commit_release,
};
-static int nfs_commit_inode(struct inode *inode, int how)
+int nfs_commit_inode(struct inode *inode, int how)
{
LIST_HEAD(head);
int may_wait = how & FLUSH_SYNC;
@@ -1443,11 +1457,6 @@ out_mark_dirty:
return ret;
}
#else
-static int nfs_commit_inode(struct inode *inode, int how)
-{
- return 0;
-}
-
static int nfs_commit_unstable_pages(struct inode *inode, struct writeback_control *wbc)
{
return 0;
@@ -1546,7 +1555,7 @@ int nfs_migrate_page(struct address_space *mapping, struct page *newpage,
nfs_fscache_release_page(page, GFP_KERNEL);
- req = nfs_find_and_lock_request(page);
+ req = nfs_find_and_lock_request(page, false);
ret = PTR_ERR(req);
if (IS_ERR(req))
goto out;
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 3d68f45..5b7e302 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -168,7 +168,7 @@ nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
fh_copy(&resp->fh, &argp->fh);
- nfserr = nfsd_read(rqstp, &resp->fh, NULL,
+ nfserr = nfsd_read(rqstp, &resp->fh,
argp->offset,
rqstp->rq_vec, argp->vlen,
&resp->count);
@@ -271,7 +271,7 @@ nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
fh_init(&resp->fh, NFS3_FHSIZE);
nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
&argp->attrs, S_IFDIR, 0, &resp->fh);
-
+ fh_unlock(&resp->dirfh);
RETURN_STATUS(nfserr);
}
@@ -327,7 +327,7 @@ nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
type = nfs3_ftypes[argp->ftype];
nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
&argp->attrs, type, rdev, &resp->fh);
-
+ fh_unlock(&resp->dirfh);
RETURN_STATUS(nfserr);
}
@@ -348,6 +348,7 @@ nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
/* Unlink. -S_IFDIR means file must not be a directory */
fh_copy(&resp->fh, &argp->fh);
nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
+ fh_unlock(&resp->fh);
RETURN_STATUS(nfserr);
}
@@ -367,6 +368,7 @@ nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
fh_copy(&resp->fh, &argp->fh);
nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
+ fh_unlock(&resp->fh);
RETURN_STATUS(nfserr);
}
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index eb78e7e..988cbb3 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -143,8 +143,6 @@ struct nfs4_cb_compound_hdr {
u32 minorversion;
/* res */
int status;
- u32 taglen;
- char *tag;
};
static struct {
@@ -205,6 +203,16 @@ nfs_cb_stat_to_errno(int stat)
*/
static void
+encode_stateid(struct xdr_stream *xdr, stateid_t *sid)
+{
+ __be32 *p;
+
+ RESERVE_SPACE(sizeof(stateid_t));
+ WRITE32(sid->si_generation);
+ WRITEMEM(&sid->si_opaque, sizeof(stateid_opaque_t));
+}
+
+static void
encode_cb_compound_hdr(struct xdr_stream *xdr, struct nfs4_cb_compound_hdr *hdr)
{
__be32 * p;
@@ -229,10 +237,10 @@ encode_cb_recall(struct xdr_stream *xdr, struct nfs4_delegation *dp,
__be32 *p;
int len = dp->dl_fh.fh_size;
- RESERVE_SPACE(12+sizeof(dp->dl_stateid) + len);
+ RESERVE_SPACE(4);
WRITE32(OP_CB_RECALL);
- WRITE32(dp->dl_stateid.si_generation);
- WRITEMEM(&dp->dl_stateid.si_opaque, sizeof(stateid_opaque_t));
+ encode_stateid(xdr, &dp->dl_stateid);
+ RESERVE_SPACE(8 + (XDR_QUADLEN(len) << 2));
WRITE32(0); /* truncate optimization not implemented */
WRITE32(len);
WRITEMEM(&dp->dl_fh.fh_base, len);
@@ -293,13 +301,14 @@ nfs4_xdr_enc_cb_recall(struct rpc_rqst *req, __be32 *p,
static int
decode_cb_compound_hdr(struct xdr_stream *xdr, struct nfs4_cb_compound_hdr *hdr){
__be32 *p;
+ u32 taglen;
READ_BUF(8);
READ32(hdr->status);
- READ32(hdr->taglen);
- READ_BUF(hdr->taglen + 4);
- hdr->tag = (char *)p;
- p += XDR_QUADLEN(hdr->taglen);
+ /* We've got no use for the tag; ignore it: */
+ READ32(taglen);
+ READ_BUF(taglen + 4);
+ p += XDR_QUADLEN(taglen);
READ32(hdr->nops);
return 0;
}
@@ -667,28 +676,28 @@ static void nfsd4_cb_recall_done(struct rpc_task *task, void *calldata)
}
switch (task->tk_status) {
- case -EIO:
+ case 0:
+ return;
+ case -EBADHANDLE:
+ case -NFS4ERR_BAD_STATEID:
+ /* Race: client probably got cb_recall
+ * before open reply granting delegation */
+ break;
+ default:
/* Network partition? */
atomic_set(&clp->cl_cb_set, 0);
warn_no_callback_path(clp, task->tk_status);
if (current_rpc_client != task->tk_client) {
/* queue a callback on the new connection: */
+ atomic_inc(&dp->dl_count);
nfsd4_cb_recall(dp);
return;
}
- case -EBADHANDLE:
- case -NFS4ERR_BAD_STATEID:
- /* Race: client probably got cb_recall
- * before open reply granting delegation */
- break;
- default:
- /* success, or error we can't handle */
- return;
}
if (dp->dl_retries--) {
rpc_delay(task, 2*HZ);
task->tk_status = 0;
- rpc_restart_call(task);
+ rpc_restart_call_prepare(task);
return;
} else {
atomic_set(&clp->cl_cb_set, 0);
@@ -752,18 +761,16 @@ static void _nfsd4_cb_recall(struct nfs4_delegation *dp)
.rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_RECALL],
.rpc_cred = callback_cred
};
- int status;
- if (clnt == NULL)
+ if (clnt == NULL) {
+ nfs4_put_delegation(dp);
return; /* Client is shutting down; give up. */
+ }
args->args_op = dp;
msg.rpc_argp = args;
dp->dl_retries = 1;
- status = rpc_call_async(clnt, &msg, RPC_TASK_SOFT,
- &nfsd4_cb_recall_ops, dp);
- if (status)
- nfs4_put_delegation(dp);
+ rpc_call_async(clnt, &msg, RPC_TASK_SOFT, &nfsd4_cb_recall_ops, dp);
}
void nfsd4_do_callback_rpc(struct work_struct *w)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 4a27347..2e73571 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -51,7 +51,6 @@ static time_t boot_time;
static u32 current_ownerid = 1;
static u32 current_fileid = 1;
static u32 current_delegid = 1;
-static u32 nfs4_init;
static stateid_t zerostateid; /* bits all 0 */
static stateid_t onestateid; /* bits all 1 */
static u64 current_sessionid = 1;
@@ -163,6 +162,46 @@ static struct list_head ownerstr_hashtbl[OWNER_HASH_SIZE];
static struct list_head file_hashtbl[FILE_HASH_SIZE];
static struct list_head stateid_hashtbl[STATEID_HASH_SIZE];
+static void __nfs4_file_get_access(struct nfs4_file *fp, int oflag)
+{
+ BUG_ON(!(fp->fi_fds[oflag] || fp->fi_fds[O_RDWR]));
+ atomic_inc(&fp->fi_access[oflag]);
+}
+
+static void nfs4_file_get_access(struct nfs4_file *fp, int oflag)
+{
+ if (oflag == O_RDWR) {
+ __nfs4_file_get_access(fp, O_RDONLY);
+ __nfs4_file_get_access(fp, O_WRONLY);
+ } else
+ __nfs4_file_get_access(fp, oflag);
+}
+
+static void nfs4_file_put_fd(struct nfs4_file *fp, int oflag)
+{
+ if (fp->fi_fds[oflag]) {
+ fput(fp->fi_fds[oflag]);
+ fp->fi_fds[oflag] = NULL;
+ }
+}
+
+static void __nfs4_file_put_access(struct nfs4_file *fp, int oflag)
+{
+ if (atomic_dec_and_test(&fp->fi_access[oflag])) {
+ nfs4_file_put_fd(fp, O_RDWR);
+ nfs4_file_put_fd(fp, oflag);
+ }
+}
+
+static void nfs4_file_put_access(struct nfs4_file *fp, int oflag)
+{
+ if (oflag == O_RDWR) {
+ __nfs4_file_put_access(fp, O_RDONLY);
+ __nfs4_file_put_access(fp, O_WRONLY);
+ } else
+ __nfs4_file_put_access(fp, oflag);
+}
+
static struct nfs4_delegation *
alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_fh *current_fh, u32 type)
{
@@ -171,6 +210,13 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
struct nfs4_cb_conn *cb = &stp->st_stateowner->so_client->cl_cb_conn;
dprintk("NFSD alloc_init_deleg\n");
+ /*
+ * Major work on the lease subsystem (for example, to support
+ * calbacks on stat) will be required before we can support
+ * write delegations properly.
+ */
+ if (type != NFS4_OPEN_DELEGATE_READ)
+ return NULL;
if (fp->fi_had_conflict)
return NULL;
if (num_delegations > max_delegations)
@@ -185,9 +231,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
dp->dl_client = clp;
get_nfs4_file(fp);
dp->dl_file = fp;
+ nfs4_file_get_access(fp, O_RDONLY);
dp->dl_flock = NULL;
- get_file(stp->st_vfs_file);
- dp->dl_vfs_file = stp->st_vfs_file;
dp->dl_type = type;
dp->dl_ident = cb->cb_ident;
dp->dl_stateid.si_boot = boot_time;
@@ -222,15 +267,12 @@ nfs4_put_delegation(struct nfs4_delegation *dp)
static void
nfs4_close_delegation(struct nfs4_delegation *dp)
{
- struct file *filp = dp->dl_vfs_file;
+ struct file *filp = find_readable_file(dp->dl_file);
dprintk("NFSD: close_delegation dp %p\n",dp);
- dp->dl_vfs_file = NULL;
- /* The following nfsd_close may not actually close the file,
- * but we want to remove the lease in any case. */
if (dp->dl_flock)
vfs_setlease(filp, F_UNLCK, &dp->dl_flock);
- nfsd_close(filp);
+ nfs4_file_put_access(dp->dl_file, O_RDONLY);
}
/* Called under the state lock. */
@@ -302,8 +344,12 @@ static void free_generic_stateid(struct nfs4_stateid *stp)
static void release_lock_stateid(struct nfs4_stateid *stp)
{
+ struct file *file;
+
unhash_generic_stateid(stp);
- locks_remove_posix(stp->st_vfs_file, (fl_owner_t)stp->st_stateowner);
+ file = find_any_file(stp->st_file);
+ if (file)
+ locks_remove_posix(file, (fl_owner_t)stp->st_stateowner);
free_generic_stateid(stp);
}
@@ -341,11 +387,85 @@ release_stateid_lockowners(struct nfs4_stateid *open_stp)
}
}
+/*
+ * We store the NONE, READ, WRITE, and BOTH bits separately in the
+ * st_{access,deny}_bmap field of the stateid, in order to track not
+ * only what share bits are currently in force, but also what
+ * combinations of share bits previous opens have used. This allows us
+ * to enforce the recommendation of rfc 3530 14.2.19 that the server
+ * return an error if the client attempt to downgrade to a combination
+ * of share bits not explicable by closing some of its previous opens.
+ *
+ * XXX: This enforcement is actually incomplete, since we don't keep
+ * track of access/deny bit combinations; so, e.g., we allow:
+ *
+ * OPEN allow read, deny write
+ * OPEN allow both, deny none
+ * DOWNGRADE allow read, deny none
+ *
+ * which we should reject.
+ */
+static void
+set_access(unsigned int *access, unsigned long bmap) {
+ int i;
+
+ *access = 0;
+ for (i = 1; i < 4; i++) {
+ if (test_bit(i, &bmap))
+ *access |= i;
+ }
+}
+
+static void
+set_deny(unsigned int *deny, unsigned long bmap) {
+ int i;
+
+ *deny = 0;
+ for (i = 0; i < 4; i++) {
+ if (test_bit(i, &bmap))
+ *deny |= i ;
+ }
+}
+
+static int
+test_share(struct nfs4_stateid *stp, struct nfsd4_open *open) {
+ unsigned int access, deny;
+
+ set_access(&access, stp->st_access_bmap);
+ set_deny(&deny, stp->st_deny_bmap);
+ if ((access & open->op_share_deny) || (deny & open->op_share_access))
+ return 0;
+ return 1;
+}
+
+static int nfs4_access_to_omode(u32 access)
+{
+ switch (access) {
+ case NFS4_SHARE_ACCESS_READ:
+ return O_RDONLY;
+ case NFS4_SHARE_ACCESS_WRITE:
+ return O_WRONLY;
+ case NFS4_SHARE_ACCESS_BOTH:
+ return O_RDWR;
+ }
+ BUG();
+}
+
+static int nfs4_access_bmap_to_omode(struct nfs4_stateid *stp)
+{
+ unsigned int access;
+
+ set_access(&access, stp->st_access_bmap);
+ return nfs4_access_to_omode(access);
+}
+
static void release_open_stateid(struct nfs4_stateid *stp)
{
+ int oflag = nfs4_access_bmap_to_omode(stp);
+
unhash_generic_stateid(stp);
release_stateid_lockowners(stp);
- nfsd_close(stp->st_vfs_file);
+ nfs4_file_put_access(stp->st_file, oflag);
free_generic_stateid(stp);
}
@@ -457,7 +577,7 @@ static int set_forechannel_drc_size(struct nfsd4_channel_attrs *fchan)
spin_unlock(&nfsd_drc_lock);
if (fchan->maxreqs == 0)
- return nfserr_serverfault;
+ return nfserr_jukebox;
fchan->maxresp_cached = size + NFSD_MIN_HDR_SEQ_SZ;
return 0;
@@ -542,7 +662,7 @@ alloc_init_session(struct svc_rqst *rqstp, struct nfs4_client *clp,
BUILD_BUG_ON(NFSD_MAX_SLOTS_PER_SESSION * sizeof(struct nfsd4_slot)
+ sizeof(struct nfsd4_session) > PAGE_SIZE);
- status = nfserr_serverfault;
+ status = nfserr_jukebox;
/* allocate struct nfsd4_session and slot table pointers in one piece */
slotsize = tmp.se_fchannel.maxreqs * sizeof(struct nfsd4_slot *);
new = kzalloc(sizeof(*new) + slotsize, GFP_KERNEL);
@@ -591,10 +711,8 @@ find_in_sessionid_hashtbl(struct nfs4_sessionid *sessionid)
dump_sessionid(__func__, sessionid);
idx = hash_sessionid(sessionid);
- dprintk("%s: idx is %d\n", __func__, idx);
/* Search in the appropriate list */
list_for_each_entry(elem, &sessionid_hashtbl[idx], se_hash) {
- dump_sessionid("list traversal", &elem->se_sessionid);
if (!memcmp(elem->se_sessionid.data, sessionid->data,
NFS4_MAX_SESSIONID_LEN)) {
return elem;
@@ -714,7 +832,6 @@ release_session_client(struct nfsd4_session *session)
} else
renew_client_locked(clp);
spin_unlock(&client_lock);
- nfsd4_put_session(session);
}
/* must be called under the client_lock */
@@ -1220,7 +1337,7 @@ out_new:
/* Normal case */
new = create_client(exid->clname, dname, rqstp, &verf);
if (new == NULL) {
- status = nfserr_serverfault;
+ status = nfserr_jukebox;
goto out;
}
@@ -1760,6 +1877,8 @@ alloc_init_file(struct inode *ino)
fp->fi_inode = igrab(ino);
fp->fi_id = current_fileid++;
fp->fi_had_conflict = false;
+ memset(fp->fi_fds, 0, sizeof(fp->fi_fds));
+ memset(fp->fi_access, 0, sizeof(fp->fi_access));
spin_lock(&recall_lock);
list_add(&fp->fi_hash, &file_hashtbl[hashval]);
spin_unlock(&recall_lock);
@@ -1971,57 +2090,6 @@ static inline int deny_valid(u32 x)
}
/*
- * We store the NONE, READ, WRITE, and BOTH bits separately in the
- * st_{access,deny}_bmap field of the stateid, in order to track not
- * only what share bits are currently in force, but also what
- * combinations of share bits previous opens have used. This allows us
- * to enforce the recommendation of rfc 3530 14.2.19 that the server
- * return an error if the client attempt to downgrade to a combination
- * of share bits not explicable by closing some of its previous opens.
- *
- * XXX: This enforcement is actually incomplete, since we don't keep
- * track of access/deny bit combinations; so, e.g., we allow:
- *
- * OPEN allow read, deny write
- * OPEN allow both, deny none
- * DOWNGRADE allow read, deny none
- *
- * which we should reject.
- */
-static void
-set_access(unsigned int *access, unsigned long bmap) {
- int i;
-
- *access = 0;
- for (i = 1; i < 4; i++) {
- if (test_bit(i, &bmap))
- *access |= i;
- }
-}
-
-static void
-set_deny(unsigned int *deny, unsigned long bmap) {
- int i;
-
- *deny = 0;
- for (i = 0; i < 4; i++) {
- if (test_bit(i, &bmap))
- *deny |= i ;
- }
-}
-
-static int
-test_share(struct nfs4_stateid *stp, struct nfsd4_open *open) {
- unsigned int access, deny;
-
- set_access(&access, stp->st_access_bmap);
- set_deny(&deny, stp->st_deny_bmap);
- if ((access & open->op_share_deny) || (deny & open->op_share_access))
- return 0;
- return 1;
-}
-
-/*
* Called to check deny when READ with all zero stateid or
* WRITE with all zero or all one stateid
*/
@@ -2052,14 +2120,12 @@ out:
}
static inline void
-nfs4_file_downgrade(struct file *filp, unsigned int share_access)
+nfs4_file_downgrade(struct nfs4_file *fp, unsigned int share_access)
{
- if (share_access & NFS4_SHARE_ACCESS_WRITE) {
- drop_file_write_access(filp);
- spin_lock(&filp->f_lock);
- filp->f_mode = (filp->f_mode | FMODE_READ) & ~FMODE_WRITE;
- spin_unlock(&filp->f_lock);
- }
+ if (share_access & NFS4_SHARE_ACCESS_WRITE)
+ nfs4_file_put_access(fp, O_WRONLY);
+ if (share_access & NFS4_SHARE_ACCESS_READ)
+ nfs4_file_put_access(fp, O_RDONLY);
}
/*
@@ -2255,6 +2321,13 @@ find_delegation_file(struct nfs4_file *fp, stateid_t *stid)
return NULL;
}
+int share_access_to_flags(u32 share_access)
+{
+ share_access &= ~NFS4_SHARE_WANT_MASK;
+
+ return share_access == NFS4_SHARE_ACCESS_READ ? RD_STATE : WR_STATE;
+}
+
static __be32
nfs4_check_deleg(struct nfs4_file *fp, struct nfsd4_open *open,
struct nfs4_delegation **dp)
@@ -2265,8 +2338,7 @@ nfs4_check_deleg(struct nfs4_file *fp, struct nfsd4_open *open,
*dp = find_delegation_file(fp, &open->op_delegate_stateid);
if (*dp == NULL)
goto out;
- flags = open->op_share_access == NFS4_SHARE_ACCESS_READ ?
- RD_STATE : WR_STATE;
+ flags = share_access_to_flags(open->op_share_access);
status = nfs4_check_delegmode(*dp, flags);
if (status)
*dp = NULL;
@@ -2308,30 +2380,53 @@ nfs4_alloc_stateid(void)
return kmem_cache_alloc(stateid_slab, GFP_KERNEL);
}
+static inline int nfs4_access_to_access(u32 nfs4_access)
+{
+ int flags = 0;
+
+ if (nfs4_access & NFS4_SHARE_ACCESS_READ)
+ flags |= NFSD_MAY_READ;
+ if (nfs4_access & NFS4_SHARE_ACCESS_WRITE)
+ flags |= NFSD_MAY_WRITE;
+ return flags;
+}
+
+static __be32 nfs4_get_vfs_file(struct svc_rqst *rqstp, struct nfs4_file
+*fp, struct svc_fh *cur_fh, u32 nfs4_access)
+{
+ __be32 status;
+ int oflag = nfs4_access_to_omode(nfs4_access);
+ int access = nfs4_access_to_access(nfs4_access);
+
+ if (!fp->fi_fds[oflag]) {
+ status = nfsd_open(rqstp, cur_fh, S_IFREG, access,
+ &fp->fi_fds[oflag]);
+ if (status == nfserr_dropit)
+ status = nfserr_jukebox;
+ if (status)
+ return status;
+ }
+ nfs4_file_get_access(fp, oflag);
+
+ return nfs_ok;
+}
+
static __be32
nfs4_new_open(struct svc_rqst *rqstp, struct nfs4_stateid **stpp,
- struct nfs4_delegation *dp,
- struct svc_fh *cur_fh, int flags)
+ struct nfs4_file *fp, struct svc_fh *cur_fh,
+ struct nfsd4_open *open)
{
struct nfs4_stateid *stp;
+ __be32 status;
stp = nfs4_alloc_stateid();
if (stp == NULL)
return nfserr_resource;
- if (dp) {
- get_file(dp->dl_vfs_file);
- stp->st_vfs_file = dp->dl_vfs_file;
- } else {
- __be32 status;
- status = nfsd_open(rqstp, cur_fh, S_IFREG, flags,
- &stp->st_vfs_file);
- if (status) {
- if (status == nfserr_dropit)
- status = nfserr_jukebox;
- kmem_cache_free(stateid_slab, stp);
- return status;
- }
+ status = nfs4_get_vfs_file(rqstp, fp, cur_fh, open->op_share_access);
+ if (status) {
+ kmem_cache_free(stateid_slab, stp);
+ return status;
}
*stpp = stp;
return 0;
@@ -2353,35 +2448,30 @@ nfsd4_truncate(struct svc_rqst *rqstp, struct svc_fh *fh,
}
static __be32
-nfs4_upgrade_open(struct svc_rqst *rqstp, struct svc_fh *cur_fh, struct nfs4_stateid *stp, struct nfsd4_open *open)
+nfs4_upgrade_open(struct svc_rqst *rqstp, struct nfs4_file *fp, struct svc_fh *cur_fh, struct nfs4_stateid *stp, struct nfsd4_open *open)
{
- struct file *filp = stp->st_vfs_file;
- struct inode *inode = filp->f_path.dentry->d_inode;
- unsigned int share_access, new_writer;
+ u32 op_share_access, new_access;
__be32 status;
- set_access(&share_access, stp->st_access_bmap);
- new_writer = (~share_access) & open->op_share_access
- & NFS4_SHARE_ACCESS_WRITE;
-
- if (new_writer) {
- int err = get_write_access(inode);
- if (err)
- return nfserrno(err);
- err = mnt_want_write(cur_fh->fh_export->ex_path.mnt);
- if (err)
- return nfserrno(err);
- file_take_write(filp);
+ set_access(&new_access, stp->st_access_bmap);
+ new_access = (~new_access) & open->op_share_access & ~NFS4_SHARE_WANT_MASK;
+
+ if (new_access) {
+ status = nfs4_get_vfs_file(rqstp, fp, cur_fh, new_access);
+ if (status)
+ return status;
}
status = nfsd4_truncate(rqstp, cur_fh, open);
if (status) {
- if (new_writer)
- put_write_access(inode);
+ if (new_access) {
+ int oflag = nfs4_access_to_omode(new_access);
+ nfs4_file_put_access(fp, oflag);
+ }
return status;
}
/* remember the open */
- filp->f_mode |= open->op_share_access;
- __set_bit(open->op_share_access, &stp->st_access_bmap);
+ op_share_access = open->op_share_access & ~NFS4_SHARE_WANT_MASK;
+ __set_bit(op_share_access, &stp->st_access_bmap);
__set_bit(open->op_share_deny, &stp->st_deny_bmap);
return nfs_ok;
@@ -2444,13 +2534,14 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta
fl.fl_type = flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK;
fl.fl_end = OFFSET_MAX;
fl.fl_owner = (fl_owner_t)dp;
- fl.fl_file = stp->st_vfs_file;
+ fl.fl_file = find_readable_file(stp->st_file);
+ BUG_ON(!fl.fl_file);
fl.fl_pid = current->tgid;
/* vfs_setlease checks to see if delegation should be handed out.
* the lock_manager callbacks fl_mylease and fl_change are used
*/
- if ((status = vfs_setlease(stp->st_vfs_file, fl.fl_type, &flp))) {
+ if ((status = vfs_setlease(fl.fl_file, fl.fl_type, &flp))) {
dprintk("NFSD: setlease failed [%d], no delegation\n", status);
unhash_delegation(dp);
flag = NFS4_OPEN_DELEGATE_NONE;
@@ -2514,18 +2605,12 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
*/
if (stp) {
/* Stateid was found, this is an OPEN upgrade */
- status = nfs4_upgrade_open(rqstp, current_fh, stp, open);
+ status = nfs4_upgrade_open(rqstp, fp, current_fh, stp, open);
if (status)
goto out;
update_stateid(&stp->st_stateid);
} else {
- /* Stateid was not found, this is a new OPEN */
- int flags = 0;
- if (open->op_share_access & NFS4_SHARE_ACCESS_READ)
- flags |= NFSD_MAY_READ;
- if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
- flags |= NFSD_MAY_WRITE;
- status = nfs4_new_open(rqstp, &stp, dp, current_fh, flags);
+ status = nfs4_new_open(rqstp, &stp, fp, current_fh, open);
if (status)
goto out;
init_stateid(stp, fp, open);
@@ -2727,7 +2812,7 @@ search_close_lru(u32 st_id, int flags)
static inline int
nfs4_check_fh(struct svc_fh *fhp, struct nfs4_stateid *stp)
{
- return fhp->fh_dentry->d_inode != stp->st_vfs_file->f_path.dentry->d_inode;
+ return fhp->fh_dentry->d_inode != stp->st_file->fi_inode;
}
static int
@@ -2760,6 +2845,9 @@ __be32 nfs4_check_openmode(struct nfs4_stateid *stp, int flags)
{
__be32 status = nfserr_openmode;
+ /* For lock stateid's, we test the parent open, not the lock: */
+ if (stp->st_openstp)
+ stp = stp->st_openstp;
if ((flags & WR_STATE) && (!access_permit_write(stp->st_access_bmap)))
goto out;
if ((flags & RD_STATE) && (!access_permit_read(stp->st_access_bmap)))
@@ -2872,7 +2960,8 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
goto out;
renew_client(dp->dl_client);
if (filpp)
- *filpp = dp->dl_vfs_file;
+ *filpp = find_readable_file(dp->dl_file);
+ BUG_ON(!*filpp);
} else { /* open or lock stateid */
stp = find_stateid(stateid, flags);
if (!stp)
@@ -2889,8 +2978,13 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
if (status)
goto out;
renew_client(stp->st_stateowner->so_client);
- if (filpp)
- *filpp = stp->st_vfs_file;
+ if (filpp) {
+ if (flags & RD_STATE)
+ *filpp = find_readable_file(stp->st_file);
+ else
+ *filpp = find_writeable_file(stp->st_file);
+ BUG_ON(!*filpp); /* assured by check_openmode */
+ }
}
status = nfs_ok;
out:
@@ -3126,8 +3220,7 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp,
goto out;
}
set_access(&share_access, stp->st_access_bmap);
- nfs4_file_downgrade(stp->st_vfs_file,
- share_access & ~od->od_share_access);
+ nfs4_file_downgrade(stp->st_file, share_access & ~od->od_share_access);
reset_union_bmap_access(od->od_share_access, &stp->st_access_bmap);
reset_union_bmap_deny(od->od_share_deny, &stp->st_deny_bmap);
@@ -3346,11 +3439,9 @@ static inline void
nfs4_set_lock_denied(struct file_lock *fl, struct nfsd4_lock_denied *deny)
{
struct nfs4_stateowner *sop;
- unsigned int hval;
if (fl->fl_lmops == &nfsd_posix_mng_ops) {
sop = (struct nfs4_stateowner *) fl->fl_owner;
- hval = lockownerid_hashval(sop->so_id);
kref_get(&sop->so_ref);
deny->ld_sop = sop;
deny->ld_clientid = sop->so_client->cl_clientid;
@@ -3446,8 +3537,6 @@ alloc_init_lock_stateid(struct nfs4_stateowner *sop, struct nfs4_file *fp, struc
stp->st_stateid.si_stateownerid = sop->so_id;
stp->st_stateid.si_fileid = fp->fi_id;
stp->st_stateid.si_generation = 0;
- stp->st_vfs_file = open_stp->st_vfs_file; /* FIXME refcount?? */
- stp->st_access_bmap = open_stp->st_access_bmap;
stp->st_deny_bmap = open_stp->st_deny_bmap;
stp->st_openstp = open_stp;
@@ -3547,7 +3636,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
lock_sop = lock->lk_replay_owner;
}
/* lock->lk_replay_owner and lock_stp have been created or found */
- filp = lock_stp->st_vfs_file;
status = nfserr_grace;
if (locks_in_grace() && !lock->lk_reclaim)
@@ -3560,11 +3648,13 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
switch (lock->lk_type) {
case NFS4_READ_LT:
case NFS4_READW_LT:
+ filp = find_readable_file(lock_stp->st_file);
file_lock.fl_type = F_RDLCK;
cmd = F_SETLK;
break;
case NFS4_WRITE_LT:
case NFS4_WRITEW_LT:
+ filp = find_writeable_file(lock_stp->st_file);
file_lock.fl_type = F_WRLCK;
cmd = F_SETLK;
break;
@@ -3572,6 +3662,10 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfserr_inval;
goto out;
}
+ if (!filp) {
+ status = nfserr_openmode;
+ goto out;
+ }
file_lock.fl_owner = (fl_owner_t)lock_sop;
file_lock.fl_pid = current->tgid;
file_lock.fl_file = filp;
@@ -3740,7 +3834,11 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
&locku->lu_stateowner, &stp, NULL)))
goto out;
- filp = stp->st_vfs_file;
+ filp = find_any_file(stp->st_file);
+ if (!filp) {
+ status = nfserr_lock_range;
+ goto out;
+ }
BUG_ON(!filp);
locks_init_lock(&file_lock);
file_lock.fl_type = F_UNLCK;
@@ -3787,10 +3885,10 @@ out_nfserr:
* 0: no locks held by lockowner
*/
static int
-check_for_locks(struct file *filp, struct nfs4_stateowner *lowner)
+check_for_locks(struct nfs4_file *filp, struct nfs4_stateowner *lowner)
{
struct file_lock **flpp;
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = filp->fi_inode;
int status = 0;
lock_kernel();
@@ -3841,7 +3939,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
continue;
list_for_each_entry(stp, &sop->so_stateids,
st_perstateowner) {
- if (check_for_locks(stp->st_vfs_file, sop))
+ if (check_for_locks(stp->st_file, sop))
goto out;
/* Note: so_perclient unused for lockowners,
* so it's OK to fool with here. */
@@ -4066,16 +4164,8 @@ out_free_laundry:
int
nfs4_state_start(void)
{
- int ret;
-
- if (nfs4_init)
- return 0;
nfsd4_load_reboot_recovery_data();
- ret = __nfs4_state_start();
- if (ret)
- return ret;
- nfs4_init = 1;
- return 0;
+ return __nfs4_state_start();
}
static void
@@ -4110,7 +4200,6 @@ __nfs4_state_shutdown(void)
}
nfsd4_shutdown_recdir();
- nfs4_init = 0;
}
void
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index ac17a70..f8931ac 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2630,7 +2630,7 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr,
}
read->rd_vlen = v;
- nfserr = nfsd_read(read->rd_rqstp, read->rd_fhp, read->rd_filp,
+ nfserr = nfsd_read_file(read->rd_rqstp, read->rd_fhp, read->rd_filp,
read->rd_offset, resp->rqstp->rq_vec, read->rd_vlen,
&maxcount);
@@ -3325,6 +3325,7 @@ nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compo
}
/* Renew the clientid on success and on replay */
release_session_client(cs->session);
+ nfsd4_put_session(cs->session);
}
return 1;
}
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 508941c..b53b1d0 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -949,15 +949,12 @@ static ssize_t __write_ports_addfd(char *buf)
if (err != 0)
return err;
- err = lockd_up();
- if (err != 0)
- goto out;
-
err = svc_addsock(nfsd_serv, fd, buf, SIMPLE_TRANSACTION_LIMIT);
- if (err < 0)
- lockd_down();
+ if (err < 0) {
+ svc_destroy(nfsd_serv);
+ return err;
+ }
-out:
/* Decrease the count, but don't shut down the service */
nfsd_serv->sv_nrthreads--;
return err;
@@ -978,9 +975,6 @@ static ssize_t __write_ports_delfd(char *buf)
if (nfsd_serv != NULL)
len = svc_sock_names(nfsd_serv, buf,
SIMPLE_TRANSACTION_LIMIT, toclose);
- if (len >= 0)
- lockd_down();
-
kfree(toclose);
return len;
}
@@ -1014,6 +1008,9 @@ static ssize_t __write_ports_addxprt(char *buf)
PF_INET6, port, SVC_SOCK_ANONYMOUS);
if (err < 0 && err != -EAFNOSUPPORT)
goto out_close;
+
+ /* Decrease the count, but don't shut down the service */
+ nfsd_serv->sv_nrthreads--;
return 0;
out_close:
xprt = svc_find_xprt(nfsd_serv, transport, PF_INET, port);
@@ -1022,8 +1019,7 @@ out_close:
svc_xprt_put(xprt);
}
out_err:
- /* Decrease the count, but don't shut down the service */
- nfsd_serv->sv_nrthreads--;
+ svc_destroy(nfsd_serv);
return err;
}
@@ -1194,7 +1190,7 @@ static ssize_t write_maxblksize(struct file *file, char *buf, size_t size)
bsize = NFSSVC_MAXBLKSIZE;
bsize &= ~(1024-1);
mutex_lock(&nfsd_mutex);
- if (nfsd_serv && nfsd_serv->sv_nrthreads) {
+ if (nfsd_serv) {
mutex_unlock(&nfsd_mutex);
return -EBUSY;
}
@@ -1310,6 +1306,8 @@ static ssize_t __write_recoverydir(struct file *file, char *buf, size_t size)
return -EINVAL;
status = nfs4_reset_recoverydir(recdir);
+ if (status)
+ return status;
}
return scnprintf(buf, SIMPLE_TRANSACTION_LIMIT, "%s\n",
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 7237776..b76ac3a 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -153,6 +153,7 @@ void nfsd_lockd_shutdown(void);
#define nfserr_bad_seqid cpu_to_be32(NFSERR_BAD_SEQID)
#define nfserr_symlink cpu_to_be32(NFSERR_SYMLINK)
#define nfserr_not_same cpu_to_be32(NFSERR_NOT_SAME)
+#define nfserr_lock_range cpu_to_be32(NFSERR_LOCK_RANGE)
#define nfserr_restorefh cpu_to_be32(NFSERR_RESTOREFH)
#define nfserr_attrnotsupp cpu_to_be32(NFSERR_ATTRNOTSUPP)
#define nfserr_bad_xdr cpu_to_be32(NFSERR_BAD_XDR)
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index a047ad6..08e1726 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -144,7 +144,7 @@ nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
svc_reserve_auth(rqstp, (19<<2) + argp->count + 4);
resp->count = argp->count;
- nfserr = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh), NULL,
+ nfserr = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh),
argp->offset,
rqstp->rq_vec, argp->vlen,
&resp->count);
@@ -290,7 +290,6 @@ nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
* gospel of sun micro
*/
if (type != S_IFREG) {
- int is_borc = 0;
if (type != S_IFBLK && type != S_IFCHR) {
rdev = 0;
} else if (type == S_IFCHR && !(attr->ia_valid & ATTR_SIZE)) {
@@ -298,7 +297,6 @@ nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
type = S_IFIFO;
} else {
/* Okay, char or block special */
- is_borc = 1;
if (!rdev)
rdev = wanted;
}
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 06b2a26..e2c4346 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -180,15 +180,80 @@ int nfsd_nrthreads(void)
return rv;
}
+static int nfsd_init_socks(int port)
+{
+ int error;
+ if (!list_empty(&nfsd_serv->sv_permsocks))
+ return 0;
+
+ error = svc_create_xprt(nfsd_serv, "udp", PF_INET, port,
+ SVC_SOCK_DEFAULTS);
+ if (error < 0)
+ return error;
+
+ error = svc_create_xprt(nfsd_serv, "tcp", PF_INET, port,
+ SVC_SOCK_DEFAULTS);
+ if (error < 0)
+ return error;
+
+ return 0;
+}
+
+static bool nfsd_up = false;
+
+static int nfsd_startup(unsigned short port, int nrservs)
+{
+ int ret;
+
+ if (nfsd_up)
+ return 0;
+ /*
+ * Readahead param cache - will no-op if it already exists.
+ * (Note therefore results will be suboptimal if number of
+ * threads is modified after nfsd start.)
+ */
+ ret = nfsd_racache_init(2*nrservs);
+ if (ret)
+ return ret;
+ ret = nfsd_init_socks(port);
+ if (ret)
+ goto out_racache;
+ ret = lockd_up();
+ if (ret)
+ goto out_racache;
+ ret = nfs4_state_start();
+ if (ret)
+ goto out_lockd;
+ nfsd_up = true;
+ return 0;
+out_lockd:
+ lockd_down();
+out_racache:
+ nfsd_racache_shutdown();
+ return ret;
+}
+
+static void nfsd_shutdown(void)
+{
+ /*
+ * write_ports can create the server without actually starting
+ * any threads--if we get shut down before any threads are
+ * started, then nfsd_last_thread will be run before any of this
+ * other initialization has been done.
+ */
+ if (!nfsd_up)
+ return;
+ nfs4_state_shutdown();
+ lockd_down();
+ nfsd_racache_shutdown();
+ nfsd_up = false;
+}
+
static void nfsd_last_thread(struct svc_serv *serv)
{
/* When last nfsd thread exits we need to do some clean-up */
- struct svc_xprt *xprt;
- list_for_each_entry(xprt, &serv->sv_permsocks, xpt_list)
- lockd_down();
nfsd_serv = NULL;
- nfsd_racache_shutdown();
- nfs4_state_shutdown();
+ nfsd_shutdown();
printk(KERN_WARNING "nfsd: last server has exited, flushing export "
"cache\n");
@@ -263,45 +328,18 @@ int nfsd_create_serv(void)
nfsd_max_blksize >= 8*1024*2)
nfsd_max_blksize /= 2;
}
+ nfsd_reset_versions();
nfsd_serv = svc_create_pooled(&nfsd_program, nfsd_max_blksize,
nfsd_last_thread, nfsd, THIS_MODULE);
if (nfsd_serv == NULL)
- err = -ENOMEM;
- else
- set_max_drc();
+ return -ENOMEM;
+ set_max_drc();
do_gettimeofday(&nfssvc_boot); /* record boot time */
return err;
}
-static int nfsd_init_socks(int port)
-{
- int error;
- if (!list_empty(&nfsd_serv->sv_permsocks))
- return 0;
-
- error = svc_create_xprt(nfsd_serv, "udp", PF_INET, port,
- SVC_SOCK_DEFAULTS);
- if (error < 0)
- return error;
-
- error = lockd_up();
- if (error < 0)
- return error;
-
- error = svc_create_xprt(nfsd_serv, "tcp", PF_INET, port,
- SVC_SOCK_DEFAULTS);
- if (error < 0)
- return error;
-
- error = lockd_up();
- if (error < 0)
- return error;
-
- return 0;
-}
-
int nfsd_nrpools(void)
{
if (nfsd_serv == NULL)
@@ -376,10 +414,16 @@ int nfsd_set_nrthreads(int n, int *nthreads)
return err;
}
+/*
+ * Adjust the number of threads and return the new number of threads.
+ * This is also the function that starts the server if necessary, if
+ * this is the first time nrservs is nonzero.
+ */
int
nfsd_svc(unsigned short port, int nrservs)
{
int error;
+ bool nfsd_up_before;
mutex_lock(&nfsd_mutex);
dprintk("nfsd: creating service\n");
@@ -391,34 +435,29 @@ nfsd_svc(unsigned short port, int nrservs)
if (nrservs == 0 && nfsd_serv == NULL)
goto out;
- /* Readahead param cache - will no-op if it already exists */
- error = nfsd_racache_init(2*nrservs);
- if (error<0)
- goto out;
- error = nfs4_state_start();
+ error = nfsd_create_serv();
if (error)
goto out;
- nfsd_reset_versions();
-
- error = nfsd_create_serv();
+ nfsd_up_before = nfsd_up;
+ error = nfsd_startup(port, nrservs);
if (error)
- goto out;
- error = nfsd_init_socks(port);
- if (error)
- goto failure;
-
+ goto out_destroy;
error = svc_set_num_threads(nfsd_serv, NULL, nrservs);
- if (error == 0)
- /* We are holding a reference to nfsd_serv which
- * we don't want to count in the return value,
- * so subtract 1
- */
- error = nfsd_serv->sv_nrthreads - 1;
- failure:
+ if (error)
+ goto out_shutdown;
+ /* We are holding a reference to nfsd_serv which
+ * we don't want to count in the return value,
+ * so subtract 1
+ */
+ error = nfsd_serv->sv_nrthreads - 1;
+out_shutdown:
+ if (error < 0 && !nfsd_up_before)
+ nfsd_shutdown();
+out_destroy:
svc_destroy(nfsd_serv); /* Release server */
- out:
+out:
mutex_unlock(&nfsd_mutex);
return error;
}
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 006c842..7731a75 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -88,7 +88,6 @@ struct nfs4_delegation {
struct nfs4_client *dl_client;
struct nfs4_file *dl_file;
struct file_lock *dl_flock;
- struct file *dl_vfs_file;
u32 dl_type;
time_t dl_time;
/* For recall: */
@@ -342,12 +341,50 @@ struct nfs4_file {
struct list_head fi_hash; /* hash by "struct inode *" */
struct list_head fi_stateids;
struct list_head fi_delegations;
+ /* One each for O_RDONLY, O_WRONLY, O_RDWR: */
+ struct file * fi_fds[3];
+ /* One each for O_RDONLY, O_WRONLY: */
+ atomic_t fi_access[2];
+ /*
+ * Each open stateid contributes 1 to either fi_readers or
+ * fi_writers, or both, depending on the open mode. A
+ * delegation also takes an fi_readers reference. Lock
+ * stateid's take none.
+ */
+ atomic_t fi_readers;
+ atomic_t fi_writers;
struct inode *fi_inode;
u32 fi_id; /* used with stateowner->so_id
* for stateid_hashtbl hash */
bool fi_had_conflict;
};
+/* XXX: for first cut may fall back on returning file that doesn't work
+ * at all? */
+static inline struct file *find_writeable_file(struct nfs4_file *f)
+{
+ if (f->fi_fds[O_RDWR])
+ return f->fi_fds[O_RDWR];
+ return f->fi_fds[O_WRONLY];
+}
+
+static inline struct file *find_readable_file(struct nfs4_file *f)
+{
+ if (f->fi_fds[O_RDWR])
+ return f->fi_fds[O_RDWR];
+ return f->fi_fds[O_RDONLY];
+}
+
+static inline struct file *find_any_file(struct nfs4_file *f)
+{
+ if (f->fi_fds[O_RDWR])
+ return f->fi_fds[O_RDWR];
+ else if (f->fi_fds[O_RDWR])
+ return f->fi_fds[O_WRONLY];
+ else
+ return f->fi_fds[O_RDONLY];
+}
+
/*
* nfs4_stateid can either be an open stateid or (eventually) a lock stateid
*
@@ -373,7 +410,6 @@ struct nfs4_stateid {
struct nfs4_stateowner * st_stateowner;
struct nfs4_file * st_file;
stateid_t st_stateid;
- struct file * st_vfs_file;
unsigned long st_access_bmap;
unsigned long st_deny_bmap;
struct nfs4_stateid * st_openstp;
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 3c11112..9df85a1 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -604,7 +604,7 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, struct nfs4_ac
return error;
}
-#endif /* defined(CONFIG_NFS_V4) */
+#endif /* defined(CONFIG_NFSD_V4) */
#ifdef CONFIG_NFSD_V3
/*
@@ -903,7 +903,6 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
loff_t offset, struct kvec *vec, int vlen, unsigned long *count)
{
struct inode *inode;
- struct raparms *ra;
mm_segment_t oldfs;
__be32 err;
int host_err;
@@ -914,12 +913,6 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
if (svc_msnfs(fhp) && !lock_may_read(inode, offset, *count))
goto out;
- /* Get readahead parameters */
- ra = nfsd_get_raparms(inode->i_sb->s_dev, inode->i_ino);
-
- if (ra && ra->p_set)
- file->f_ra = ra->p_ra;
-
if (file->f_op->splice_read && rqstp->rq_splice_ok) {
struct splice_desc sd = {
.len = 0,
@@ -937,16 +930,6 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
set_fs(oldfs);
}
- /* Write back readahead params */
- if (ra) {
- struct raparm_hbucket *rab = &raparm_hash[ra->p_hindex];
- spin_lock(&rab->pb_lock);
- ra->p_ra = file->f_ra;
- ra->p_set = 1;
- ra->p_count--;
- spin_unlock(&rab->pb_lock);
- }
-
if (host_err >= 0) {
nfsdstats.io_read += host_err;
*count = host_err;
@@ -1086,8 +1069,45 @@ out:
* on entry. On return, *count contains the number of bytes actually read.
* N.B. After this call fhp needs an fh_put
*/
+__be32 nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp,
+ loff_t offset, struct kvec *vec, int vlen, unsigned long *count)
+{
+ struct file *file;
+ struct inode *inode;
+ struct raparms *ra;
+ __be32 err;
+
+ err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_READ, &file);
+ if (err)
+ return err;
+
+ inode = file->f_path.dentry->d_inode;
+
+ /* Get readahead parameters */
+ ra = nfsd_get_raparms(inode->i_sb->s_dev, inode->i_ino);
+
+ if (ra && ra->p_set)
+ file->f_ra = ra->p_ra;
+
+ err = nfsd_vfs_read(rqstp, fhp, file, offset, vec, vlen, count);
+
+ /* Write back readahead params */
+ if (ra) {
+ struct raparm_hbucket *rab = &raparm_hash[ra->p_hindex];
+ spin_lock(&rab->pb_lock);
+ ra->p_ra = file->f_ra;
+ ra->p_set = 1;
+ ra->p_count--;
+ spin_unlock(&rab->pb_lock);
+ }
+
+ nfsd_close(file);
+ return err;
+}
+
+/* As above, but use the provided file descriptor. */
__be32
-nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
+nfsd_read_file(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
loff_t offset, struct kvec *vec, int vlen,
unsigned long *count)
{
@@ -1099,13 +1119,8 @@ nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
if (err)
goto out;
err = nfsd_vfs_read(rqstp, fhp, file, offset, vec, vlen, count);
- } else {
- err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_READ, &file);
- if (err)
- goto out;
- err = nfsd_vfs_read(rqstp, fhp, file, offset, vec, vlen, count);
- nfsd_close(file);
- }
+ } else /* Note file may still be NULL in NFSv4 special stateid case: */
+ err = nfsd_read(rqstp, fhp, offset, vec, vlen, count);
out:
return err;
}
@@ -1631,7 +1646,7 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
char *name, int len, struct svc_fh *tfhp)
{
struct dentry *ddir, *dnew, *dold;
- struct inode *dirp, *dest;
+ struct inode *dirp;
__be32 err;
int host_err;
@@ -1659,7 +1674,6 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
goto out_nfserr;
dold = tfhp->fh_dentry;
- dest = dold->d_inode;
host_err = mnt_want_write(tfhp->fh_export->ex_path.mnt);
if (host_err) {
@@ -2038,7 +2052,6 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp,
struct dentry *dentry, int acc)
{
struct inode *inode = dentry->d_inode;
- struct path path;
int err;
if (acc == NFSD_MAY_NOP)
@@ -2111,15 +2124,7 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp,
if (err == -EACCES && S_ISREG(inode->i_mode) &&
acc == (NFSD_MAY_READ | NFSD_MAY_OWNER_OVERRIDE))
err = inode_permission(inode, MAY_EXEC);
- if (err)
- goto nfsd_out;
- /* Do integrity (permission) checking now, but defer incrementing
- * IMA counts to the actual file open.
- */
- path.mnt = exp->ex_path.mnt;
- path.dentry = dentry;
-nfsd_out:
return err? nfserrno(err) : 0;
}
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index 217a62c..9a370a5 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -64,7 +64,9 @@ __be32 nfsd_commit(struct svc_rqst *, struct svc_fh *,
__be32 nfsd_open(struct svc_rqst *, struct svc_fh *, int,
int, struct file **);
void nfsd_close(struct file *);
-__be32 nfsd_read(struct svc_rqst *, struct svc_fh *, struct file *,
+__be32 nfsd_read(struct svc_rqst *, struct svc_fh *,
+ loff_t, struct kvec *, int, unsigned long *);
+__be32 nfsd_read_file(struct svc_rqst *, struct svc_fh *, struct file *,
loff_t, struct kvec *, int, unsigned long *);
__be32 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *,
loff_t, struct kvec *,int, unsigned long *, int *);
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index effdbdb..3dbdc1d 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -26,6 +26,8 @@
#include "nilfs.h"
#include "bmap.h"
#include "sb.h"
+#include "btree.h"
+#include "direct.h"
#include "btnode.h"
#include "mdt.h"
#include "dat.h"
@@ -533,7 +535,7 @@ void nilfs_bmap_init_gc(struct nilfs_bmap *bmap)
void nilfs_bmap_init_gcdat(struct nilfs_bmap *gcbmap, struct nilfs_bmap *bmap)
{
- memcpy(gcbmap, bmap, sizeof(union nilfs_bmap_union));
+ memcpy(gcbmap, bmap, sizeof(*bmap));
init_rwsem(&gcbmap->b_sem);
lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
gcbmap->b_inode = &NILFS_BMAP_I(gcbmap)->vfs_inode;
@@ -541,7 +543,7 @@ void nilfs_bmap_init_gcdat(struct nilfs_bmap *gcbmap, struct nilfs_bmap *bmap)
void nilfs_bmap_commit_gcdat(struct nilfs_bmap *gcbmap, struct nilfs_bmap *bmap)
{
- memcpy(bmap, gcbmap, sizeof(union nilfs_bmap_union));
+ memcpy(bmap, gcbmap, sizeof(*bmap));
init_rwsem(&bmap->b_sem);
lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
bmap->b_inode = &NILFS_BMAP_I(bmap)->vfs_inode;
diff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h
index 9980d7d..a20569b 100644
--- a/fs/nilfs2/bmap.h
+++ b/fs/nilfs2/bmap.h
@@ -32,11 +32,6 @@
#define NILFS_BMAP_INVALID_PTR 0
-#define nilfs_bmap_dkey_to_key(dkey) le64_to_cpu(dkey)
-#define nilfs_bmap_key_to_dkey(key) cpu_to_le64(key)
-#define nilfs_bmap_dptr_to_ptr(dptr) le64_to_cpu(dptr)
-#define nilfs_bmap_ptr_to_dptr(ptr) cpu_to_le64(ptr)
-
#define nilfs_bmap_keydiff_abs(diff) ((diff) < 0 ? -(diff) : (diff))
@@ -71,7 +66,7 @@ struct nilfs_bmap_operations {
int (*bop_delete)(struct nilfs_bmap *, __u64);
void (*bop_clear)(struct nilfs_bmap *);
- int (*bop_propagate)(const struct nilfs_bmap *, struct buffer_head *);
+ int (*bop_propagate)(struct nilfs_bmap *, struct buffer_head *);
void (*bop_lookup_dirty_buffers)(struct nilfs_bmap *,
struct list_head *);
@@ -110,6 +105,7 @@ static inline int nilfs_bmap_is_new_ptr(unsigned long ptr)
* @b_last_allocated_ptr: last allocated ptr for data block
* @b_ptr_type: pointer type
* @b_state: state
+ * @b_nchildren_per_block: maximum number of child nodes for non-root nodes
*/
struct nilfs_bmap {
union {
@@ -123,6 +119,7 @@ struct nilfs_bmap {
__u64 b_last_allocated_ptr;
int b_ptr_type;
int b_state;
+ __u16 b_nchildren_per_block;
};
/* pointer type */
@@ -224,6 +221,13 @@ static inline void nilfs_bmap_abort_end_ptr(struct nilfs_bmap *bmap,
nilfs_dat_abort_end(dat, &req->bpr_req);
}
+static inline void nilfs_bmap_set_target_v(struct nilfs_bmap *bmap, __u64 key,
+ __u64 ptr)
+{
+ bmap->b_last_allocated_key = key;
+ bmap->b_last_allocated_ptr = ptr;
+}
+
__u64 nilfs_bmap_data_get_key(const struct nilfs_bmap *,
const struct buffer_head *);
diff --git a/fs/nilfs2/bmap_union.h b/fs/nilfs2/bmap_union.h
deleted file mode 100644
index d41509b..0000000
--- a/fs/nilfs2/bmap_union.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * bmap_union.h - NILFS block mapping.
- *
- * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Written by Koji Sato <koji@osrg.net>.
- */
-
-#ifndef _NILFS_BMAP_UNION_H
-#define _NILFS_BMAP_UNION_H
-
-#include "bmap.h"
-#include "direct.h"
-#include "btree.h"
-
-/**
- * nilfs_bmap_union -
- * @bi_bmap: bmap structure
- * @bi_btree: direct map structure
- * @bi_direct: B-tree structure
- */
-union nilfs_bmap_union {
- struct nilfs_bmap bi_bmap;
- struct nilfs_direct bi_direct;
- struct nilfs_btree bi_btree;
-};
-
-#endif /* _NILFS_BMAP_UNION_H */
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index 447ce47..f78ab10 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -96,10 +96,12 @@ nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr)
}
int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
- sector_t pblocknr, struct buffer_head **pbh)
+ sector_t pblocknr, int mode,
+ struct buffer_head **pbh, sector_t *submit_ptr)
{
struct buffer_head *bh;
struct inode *inode = NILFS_BTNC_I(btnc);
+ struct page *page;
int err;
bh = nilfs_grab_buffer(inode, btnc, blocknr, 1 << BH_NILFS_Node);
@@ -107,6 +109,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
return -ENOMEM;
err = -EEXIST; /* internal code */
+ page = bh->b_page;
if (buffer_uptodate(bh) || buffer_dirty(bh))
goto found;
@@ -125,7 +128,16 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
}
}
}
- lock_buffer(bh);
+
+ if (mode == READA) {
+ if (pblocknr != *submit_ptr + 1 || !trylock_buffer(bh)) {
+ err = -EBUSY; /* internal code */
+ brelse(bh);
+ goto out_locked;
+ }
+ } else { /* mode == READ */
+ lock_buffer(bh);
+ }
if (buffer_uptodate(bh)) {
unlock_buffer(bh);
err = -EEXIST; /* internal code */
@@ -136,15 +148,16 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
bh->b_blocknr = pblocknr; /* set block address for read */
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
- submit_bh(READ, bh);
+ submit_bh(mode, bh);
bh->b_blocknr = blocknr; /* set back to the given block address */
+ *submit_ptr = pblocknr;
err = 0;
found:
*pbh = bh;
out_locked:
- unlock_page(bh->b_page);
- page_cache_release(bh->b_page);
+ unlock_page(page);
+ page_cache_release(page);
return err;
}
diff --git a/fs/nilfs2/btnode.h b/fs/nilfs2/btnode.h
index 07da83f..7903749 100644
--- a/fs/nilfs2/btnode.h
+++ b/fs/nilfs2/btnode.h
@@ -42,8 +42,8 @@ void nilfs_btnode_cache_init(struct address_space *, struct backing_dev_info *);
void nilfs_btnode_cache_clear(struct address_space *);
struct buffer_head *nilfs_btnode_create_block(struct address_space *btnc,
__u64 blocknr);
-int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t,
- struct buffer_head **);
+int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t, int,
+ struct buffer_head **, sector_t *);
void nilfs_btnode_delete(struct buffer_head *);
int nilfs_btnode_prepare_change_key(struct address_space *,
struct nilfs_btnode_chkey_ctxt *);
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index b27a342..300c2bc 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -66,30 +66,10 @@ static void nilfs_btree_free_path(struct nilfs_btree_path *path)
/*
* B-tree node operations
*/
-static int nilfs_btree_get_block(const struct nilfs_btree *btree, __u64 ptr,
- struct buffer_head **bhp)
-{
- struct address_space *btnc =
- &NILFS_BMAP_I((struct nilfs_bmap *)btree)->i_btnode_cache;
- int err;
-
- err = nilfs_btnode_submit_block(btnc, ptr, 0, bhp);
- if (err)
- return err == -EEXIST ? 0 : err;
-
- wait_on_buffer(*bhp);
- if (!buffer_uptodate(*bhp)) {
- brelse(*bhp);
- return -EIO;
- }
- return 0;
-}
-
-static int nilfs_btree_get_new_block(const struct nilfs_btree *btree,
+static int nilfs_btree_get_new_block(const struct nilfs_bmap *btree,
__u64 ptr, struct buffer_head **bhp)
{
- struct address_space *btnc =
- &NILFS_BMAP_I((struct nilfs_bmap *)btree)->i_btnode_cache;
+ struct address_space *btnc = &NILFS_BMAP_I(btree)->i_btnode_cache;
struct buffer_head *bh;
bh = nilfs_btnode_create_block(btnc, ptr);
@@ -101,71 +81,55 @@ static int nilfs_btree_get_new_block(const struct nilfs_btree *btree,
return 0;
}
-static inline int
-nilfs_btree_node_get_flags(const struct nilfs_btree_node *node)
+static int nilfs_btree_node_get_flags(const struct nilfs_btree_node *node)
{
return node->bn_flags;
}
-static inline void
+static void
nilfs_btree_node_set_flags(struct nilfs_btree_node *node, int flags)
{
node->bn_flags = flags;
}
-static inline int nilfs_btree_node_root(const struct nilfs_btree_node *node)
+static int nilfs_btree_node_root(const struct nilfs_btree_node *node)
{
return nilfs_btree_node_get_flags(node) & NILFS_BTREE_NODE_ROOT;
}
-static inline int
-nilfs_btree_node_get_level(const struct nilfs_btree_node *node)
+static int nilfs_btree_node_get_level(const struct nilfs_btree_node *node)
{
return node->bn_level;
}
-static inline void
+static void
nilfs_btree_node_set_level(struct nilfs_btree_node *node, int level)
{
node->bn_level = level;
}
-static inline int
-nilfs_btree_node_get_nchildren(const struct nilfs_btree_node *node)
+static int nilfs_btree_node_get_nchildren(const struct nilfs_btree_node *node)
{
return le16_to_cpu(node->bn_nchildren);
}
-static inline void
+static void
nilfs_btree_node_set_nchildren(struct nilfs_btree_node *node, int nchildren)
{
node->bn_nchildren = cpu_to_le16(nchildren);
}
-static inline int nilfs_btree_node_size(const struct nilfs_btree *btree)
+static int nilfs_btree_node_size(const struct nilfs_bmap *btree)
{
- return 1 << btree->bt_bmap.b_inode->i_blkbits;
+ return 1 << btree->b_inode->i_blkbits;
}
-static inline int
-nilfs_btree_node_nchildren_min(const struct nilfs_btree_node *node,
- const struct nilfs_btree *btree)
+static int nilfs_btree_nchildren_per_block(const struct nilfs_bmap *btree)
{
- return nilfs_btree_node_root(node) ?
- NILFS_BTREE_ROOT_NCHILDREN_MIN :
- NILFS_BTREE_NODE_NCHILDREN_MIN(nilfs_btree_node_size(btree));
+ return btree->b_nchildren_per_block;
}
-static inline int
-nilfs_btree_node_nchildren_max(const struct nilfs_btree_node *node,
- const struct nilfs_btree *btree)
-{
- return nilfs_btree_node_root(node) ?
- NILFS_BTREE_ROOT_NCHILDREN_MAX :
- NILFS_BTREE_NODE_NCHILDREN_MAX(nilfs_btree_node_size(btree));
-}
-
-static inline __le64 *
+static __le64 *
nilfs_btree_node_dkeys(const struct nilfs_btree_node *node)
{
return (__le64 *)((char *)(node + 1) +
@@ -173,45 +137,40 @@ nilfs_btree_node_dkeys(const struct nilfs_btree_node *node)
0 : NILFS_BTREE_NODE_EXTRA_PAD_SIZE));
}
-static inline __le64 *
-nilfs_btree_node_dptrs(const struct nilfs_btree_node *node,
- const struct nilfs_btree *btree)
+static __le64 *
+nilfs_btree_node_dptrs(const struct nilfs_btree_node *node, int ncmax)
{
- return (__le64 *)(nilfs_btree_node_dkeys(node) +
- nilfs_btree_node_nchildren_max(node, btree));
+ return (__le64 *)(nilfs_btree_node_dkeys(node) + ncmax);
}
-static inline __u64
+static __u64
nilfs_btree_node_get_key(const struct nilfs_btree_node *node, int index)
{
- return nilfs_bmap_dkey_to_key(*(nilfs_btree_node_dkeys(node) + index));
+ return le64_to_cpu(*(nilfs_btree_node_dkeys(node) + index));
}
-static inline void
+static void
nilfs_btree_node_set_key(struct nilfs_btree_node *node, int index, __u64 key)
{
- *(nilfs_btree_node_dkeys(node) + index) = nilfs_bmap_key_to_dkey(key);
+ *(nilfs_btree_node_dkeys(node) + index) = cpu_to_le64(key);
}
-static inline __u64
-nilfs_btree_node_get_ptr(const struct nilfs_btree *btree,
- const struct nilfs_btree_node *node, int index)
+static __u64
+nilfs_btree_node_get_ptr(const struct nilfs_btree_node *node, int index,
+ int ncmax)
{
- return nilfs_bmap_dptr_to_ptr(*(nilfs_btree_node_dptrs(node, btree) +
- index));
+ return le64_to_cpu(*(nilfs_btree_node_dptrs(node, ncmax) + index));
}
-static inline void
-nilfs_btree_node_set_ptr(struct nilfs_btree *btree,
- struct nilfs_btree_node *node, int index, __u64 ptr)
+static void
+nilfs_btree_node_set_ptr(struct nilfs_btree_node *node, int index, __u64 ptr,
+ int ncmax)
{
- *(nilfs_btree_node_dptrs(node, btree) + index) =
- nilfs_bmap_ptr_to_dptr(ptr);
+ *(nilfs_btree_node_dptrs(node, ncmax) + index) = cpu_to_le64(ptr);
}
-static void nilfs_btree_node_init(struct nilfs_btree *btree,
- struct nilfs_btree_node *node,
- int flags, int level, int nchildren,
+static void nilfs_btree_node_init(struct nilfs_btree_node *node, int flags,
+ int level, int nchildren, int ncmax,
const __u64 *keys, const __u64 *ptrs)
{
__le64 *dkeys;
@@ -223,29 +182,28 @@ static void nilfs_btree_node_init(struct nilfs_btree *btree,
nilfs_btree_node_set_nchildren(node, nchildren);
dkeys = nilfs_btree_node_dkeys(node);
- dptrs = nilfs_btree_node_dptrs(node, btree);
+ dptrs = nilfs_btree_node_dptrs(node, ncmax);
for (i = 0; i < nchildren; i++) {
- dkeys[i] = nilfs_bmap_key_to_dkey(keys[i]);
- dptrs[i] = nilfs_bmap_ptr_to_dptr(ptrs[i]);
+ dkeys[i] = cpu_to_le64(keys[i]);
+ dptrs[i] = cpu_to_le64(ptrs[i]);
}
}
/* Assume the buffer heads corresponding to left and right are locked. */
-static void nilfs_btree_node_move_left(struct nilfs_btree *btree,
- struct nilfs_btree_node *left,
+static void nilfs_btree_node_move_left(struct nilfs_btree_node *left,
struct nilfs_btree_node *right,
- int n)
+ int n, int lncmax, int rncmax)
{
__le64 *ldkeys, *rdkeys;
__le64 *ldptrs, *rdptrs;
int lnchildren, rnchildren;
ldkeys = nilfs_btree_node_dkeys(left);
- ldptrs = nilfs_btree_node_dptrs(left, btree);
+ ldptrs = nilfs_btree_node_dptrs(left, lncmax);
lnchildren = nilfs_btree_node_get_nchildren(left);
rdkeys = nilfs_btree_node_dkeys(right);
- rdptrs = nilfs_btree_node_dptrs(right, btree);
+ rdptrs = nilfs_btree_node_dptrs(right, rncmax);
rnchildren = nilfs_btree_node_get_nchildren(right);
memcpy(ldkeys + lnchildren, rdkeys, n * sizeof(*rdkeys));
@@ -260,21 +218,20 @@ static void nilfs_btree_node_move_left(struct nilfs_btree *btree,
}
/* Assume that the buffer heads corresponding to left and right are locked. */
-static void nilfs_btree_node_move_right(struct nilfs_btree *btree,
- struct nilfs_btree_node *left,
+static void nilfs_btree_node_move_right(struct nilfs_btree_node *left,
struct nilfs_btree_node *right,
- int n)
+ int n, int lncmax, int rncmax)
{
__le64 *ldkeys, *rdkeys;
__le64 *ldptrs, *rdptrs;
int lnchildren, rnchildren;
ldkeys = nilfs_btree_node_dkeys(left);
- ldptrs = nilfs_btree_node_dptrs(left, btree);
+ ldptrs = nilfs_btree_node_dptrs(left, lncmax);
lnchildren = nilfs_btree_node_get_nchildren(left);
rdkeys = nilfs_btree_node_dkeys(right);
- rdptrs = nilfs_btree_node_dptrs(right, btree);
+ rdptrs = nilfs_btree_node_dptrs(right, rncmax);
rnchildren = nilfs_btree_node_get_nchildren(right);
memmove(rdkeys + n, rdkeys, rnchildren * sizeof(*rdkeys));
@@ -289,16 +246,15 @@ static void nilfs_btree_node_move_right(struct nilfs_btree *btree,
}
/* Assume that the buffer head corresponding to node is locked. */
-static void nilfs_btree_node_insert(struct nilfs_btree *btree,
- struct nilfs_btree_node *node,
- __u64 key, __u64 ptr, int index)
+static void nilfs_btree_node_insert(struct nilfs_btree_node *node, int index,
+ __u64 key, __u64 ptr, int ncmax)
{
__le64 *dkeys;
__le64 *dptrs;
int nchildren;
dkeys = nilfs_btree_node_dkeys(node);
- dptrs = nilfs_btree_node_dptrs(node, btree);
+ dptrs = nilfs_btree_node_dptrs(node, ncmax);
nchildren = nilfs_btree_node_get_nchildren(node);
if (index < nchildren) {
memmove(dkeys + index + 1, dkeys + index,
@@ -306,16 +262,15 @@ static void nilfs_btree_node_insert(struct nilfs_btree *btree,
memmove(dptrs + index + 1, dptrs + index,
(nchildren - index) * sizeof(*dptrs));
}
- dkeys[index] = nilfs_bmap_key_to_dkey(key);
- dptrs[index] = nilfs_bmap_ptr_to_dptr(ptr);
+ dkeys[index] = cpu_to_le64(key);
+ dptrs[index] = cpu_to_le64(ptr);
nchildren++;
nilfs_btree_node_set_nchildren(node, nchildren);
}
/* Assume that the buffer head corresponding to node is locked. */
-static void nilfs_btree_node_delete(struct nilfs_btree *btree,
- struct nilfs_btree_node *node,
- __u64 *keyp, __u64 *ptrp, int index)
+static void nilfs_btree_node_delete(struct nilfs_btree_node *node, int index,
+ __u64 *keyp, __u64 *ptrp, int ncmax)
{
__u64 key;
__u64 ptr;
@@ -324,9 +279,9 @@ static void nilfs_btree_node_delete(struct nilfs_btree *btree,
int nchildren;
dkeys = nilfs_btree_node_dkeys(node);
- dptrs = nilfs_btree_node_dptrs(node, btree);
- key = nilfs_bmap_dkey_to_key(dkeys[index]);
- ptr = nilfs_bmap_dptr_to_ptr(dptrs[index]);
+ dptrs = nilfs_btree_node_dptrs(node, ncmax);
+ key = le64_to_cpu(dkeys[index]);
+ ptr = le64_to_cpu(dptrs[index]);
nchildren = nilfs_btree_node_get_nchildren(node);
if (keyp != NULL)
*keyp = key;
@@ -382,40 +337,92 @@ static int nilfs_btree_node_lookup(const struct nilfs_btree_node *node,
return s == 0;
}
-static inline struct nilfs_btree_node *
-nilfs_btree_get_root(const struct nilfs_btree *btree)
+/**
+ * nilfs_btree_node_broken - verify consistency of btree node
+ * @node: btree node block to be examined
+ * @size: node size (in bytes)
+ * @blocknr: block number
+ *
+ * Return Value: If node is broken, 1 is returned. Otherwise, 0 is returned.
+ */
+static int nilfs_btree_node_broken(const struct nilfs_btree_node *node,
+ size_t size, sector_t blocknr)
{
- return (struct nilfs_btree_node *)btree->bt_bmap.b_u.u_data;
+ int level, flags, nchildren;
+ int ret = 0;
+
+ level = nilfs_btree_node_get_level(node);
+ flags = nilfs_btree_node_get_flags(node);
+ nchildren = nilfs_btree_node_get_nchildren(node);
+
+ if (unlikely(level < NILFS_BTREE_LEVEL_NODE_MIN ||
+ level >= NILFS_BTREE_LEVEL_MAX ||
+ (flags & NILFS_BTREE_NODE_ROOT) ||
+ nchildren < 0 ||
+ nchildren > NILFS_BTREE_NODE_NCHILDREN_MAX(size))) {
+ printk(KERN_CRIT "NILFS: bad btree node (blocknr=%llu): "
+ "level = %d, flags = 0x%x, nchildren = %d\n",
+ (unsigned long long)blocknr, level, flags, nchildren);
+ ret = 1;
+ }
+ return ret;
}
-static inline struct nilfs_btree_node *
+int nilfs_btree_broken_node_block(struct buffer_head *bh)
+{
+ int ret;
+
+ if (buffer_nilfs_checked(bh))
+ return 0;
+
+ ret = nilfs_btree_node_broken((struct nilfs_btree_node *)bh->b_data,
+ bh->b_size, bh->b_blocknr);
+ if (likely(!ret))
+ set_buffer_nilfs_checked(bh);
+ return ret;
+}
+
+static struct nilfs_btree_node *
+nilfs_btree_get_root(const struct nilfs_bmap *btree)
+{
+ return (struct nilfs_btree_node *)btree->b_u.u_data;
+}
+
+static struct nilfs_btree_node *
nilfs_btree_get_nonroot_node(const struct nilfs_btree_path *path, int level)
{
return (struct nilfs_btree_node *)path[level].bp_bh->b_data;
}
-static inline struct nilfs_btree_node *
+static struct nilfs_btree_node *
nilfs_btree_get_sib_node(const struct nilfs_btree_path *path, int level)
{
return (struct nilfs_btree_node *)path[level].bp_sib_bh->b_data;
}
-static inline int nilfs_btree_height(const struct nilfs_btree *btree)
+static int nilfs_btree_height(const struct nilfs_bmap *btree)
{
return nilfs_btree_node_get_level(nilfs_btree_get_root(btree)) + 1;
}
-static inline struct nilfs_btree_node *
-nilfs_btree_get_node(const struct nilfs_btree *btree,
+static struct nilfs_btree_node *
+nilfs_btree_get_node(const struct nilfs_bmap *btree,
const struct nilfs_btree_path *path,
- int level)
+ int level, int *ncmaxp)
{
- return (level == nilfs_btree_height(btree) - 1) ?
- nilfs_btree_get_root(btree) :
- nilfs_btree_get_nonroot_node(path, level);
+ struct nilfs_btree_node *node;
+
+ if (level == nilfs_btree_height(btree) - 1) {
+ node = nilfs_btree_get_root(btree);
+ *ncmaxp = NILFS_BTREE_ROOT_NCHILDREN_MAX;
+ } else {
+ node = nilfs_btree_get_nonroot_node(path, level);
+ *ncmaxp = nilfs_btree_nchildren_per_block(btree);
+ }
+ return node;
}
-static inline int
+static int
nilfs_btree_bad_node(struct nilfs_btree_node *node, int level)
{
if (unlikely(nilfs_btree_node_get_level(node) != level)) {
@@ -427,13 +434,83 @@ nilfs_btree_bad_node(struct nilfs_btree_node *node, int level)
return 0;
}
-static int nilfs_btree_do_lookup(const struct nilfs_btree *btree,
+struct nilfs_btree_readahead_info {
+ struct nilfs_btree_node *node; /* parent node */
+ int max_ra_blocks; /* max nof blocks to read ahead */
+ int index; /* current index on the parent node */
+ int ncmax; /* nof children in the parent node */
+};
+
+static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr,
+ struct buffer_head **bhp,
+ const struct nilfs_btree_readahead_info *ra)
+{
+ struct address_space *btnc = &NILFS_BMAP_I(btree)->i_btnode_cache;
+ struct buffer_head *bh, *ra_bh;
+ sector_t submit_ptr = 0;
+ int ret;
+
+ ret = nilfs_btnode_submit_block(btnc, ptr, 0, READ, &bh, &submit_ptr);
+ if (ret) {
+ if (ret != -EEXIST)
+ return ret;
+ goto out_check;
+ }
+
+ if (ra) {
+ int i, n;
+ __u64 ptr2;
+
+ /* read ahead sibling nodes */
+ for (n = ra->max_ra_blocks, i = ra->index + 1;
+ n > 0 && i < ra->ncmax; n--, i++) {
+ ptr2 = nilfs_btree_node_get_ptr(ra->node, i, ra->ncmax);
+
+ ret = nilfs_btnode_submit_block(btnc, ptr2, 0, READA,
+ &ra_bh, &submit_ptr);
+ if (likely(!ret || ret == -EEXIST))
+ brelse(ra_bh);
+ else if (ret != -EBUSY)
+ break;
+ if (!buffer_locked(bh))
+ goto out_no_wait;
+ }
+ }
+
+ wait_on_buffer(bh);
+
+ out_no_wait:
+ if (!buffer_uptodate(bh)) {
+ brelse(bh);
+ return -EIO;
+ }
+
+ out_check:
+ if (nilfs_btree_broken_node_block(bh)) {
+ clear_buffer_uptodate(bh);
+ brelse(bh);
+ return -EINVAL;
+ }
+
+ *bhp = bh;
+ return 0;
+}
+
+static int nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr,
+ struct buffer_head **bhp)
+{
+ return __nilfs_btree_get_block(btree, ptr, bhp, NULL);
+}
+
+static int nilfs_btree_do_lookup(const struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
- __u64 key, __u64 *ptrp, int minlevel)
+ __u64 key, __u64 *ptrp, int minlevel,
+ int readahead)
{
struct nilfs_btree_node *node;
+ struct nilfs_btree_readahead_info p, *ra;
__u64 ptr;
- int level, index, found, ret;
+ int level, index, found, ncmax, ret;
node = nilfs_btree_get_root(btree);
level = nilfs_btree_node_get_level(node);
@@ -441,14 +518,27 @@ static int nilfs_btree_do_lookup(const struct nilfs_btree *btree,
return -ENOENT;
found = nilfs_btree_node_lookup(node, key, &index);
- ptr = nilfs_btree_node_get_ptr(btree, node, index);
+ ptr = nilfs_btree_node_get_ptr(node, index,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX);
path[level].bp_bh = NULL;
path[level].bp_index = index;
- for (level--; level >= minlevel; level--) {
- ret = nilfs_btree_get_block(btree, ptr, &path[level].bp_bh);
+ ncmax = nilfs_btree_nchildren_per_block(btree);
+
+ while (--level >= minlevel) {
+ ra = NULL;
+ if (level == NILFS_BTREE_LEVEL_NODE_MIN && readahead) {
+ p.node = nilfs_btree_get_node(btree, path, level + 1,
+ &p.ncmax);
+ p.index = index;
+ p.max_ra_blocks = 7;
+ ra = &p;
+ }
+ ret = __nilfs_btree_get_block(btree, ptr, &path[level].bp_bh,
+ ra);
if (ret < 0)
return ret;
+
node = nilfs_btree_get_nonroot_node(path, level);
if (nilfs_btree_bad_node(node, level))
return -EINVAL;
@@ -456,9 +546,9 @@ static int nilfs_btree_do_lookup(const struct nilfs_btree *btree,
found = nilfs_btree_node_lookup(node, key, &index);
else
index = 0;
- if (index < nilfs_btree_node_nchildren_max(node, btree))
- ptr = nilfs_btree_node_get_ptr(btree, node, index);
- else {
+ if (index < ncmax) {
+ ptr = nilfs_btree_node_get_ptr(node, index, ncmax);
+ } else {
WARN_ON(found || level != NILFS_BTREE_LEVEL_NODE_MIN);
/* insert */
ptr = NILFS_BMAP_INVALID_PTR;
@@ -474,22 +564,24 @@ static int nilfs_btree_do_lookup(const struct nilfs_btree *btree,
return 0;
}
-static int nilfs_btree_do_lookup_last(const struct nilfs_btree *btree,
+static int nilfs_btree_do_lookup_last(const struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
__u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node;
__u64 ptr;
- int index, level, ret;
+ int index, level, ncmax, ret;
node = nilfs_btree_get_root(btree);
index = nilfs_btree_node_get_nchildren(node) - 1;
if (index < 0)
return -ENOENT;
level = nilfs_btree_node_get_level(node);
- ptr = nilfs_btree_node_get_ptr(btree, node, index);
+ ptr = nilfs_btree_node_get_ptr(node, index,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX);
path[level].bp_bh = NULL;
path[level].bp_index = index;
+ ncmax = nilfs_btree_nchildren_per_block(btree);
for (level--; level > 0; level--) {
ret = nilfs_btree_get_block(btree, ptr, &path[level].bp_bh);
@@ -499,7 +591,7 @@ static int nilfs_btree_do_lookup_last(const struct nilfs_btree *btree,
if (nilfs_btree_bad_node(node, level))
return -EINVAL;
index = nilfs_btree_node_get_nchildren(node) - 1;
- ptr = nilfs_btree_node_get_ptr(btree, node, index);
+ ptr = nilfs_btree_node_get_ptr(node, index, ncmax);
path[level].bp_index = index;
}
@@ -511,51 +603,45 @@ static int nilfs_btree_do_lookup_last(const struct nilfs_btree *btree,
return 0;
}
-static int nilfs_btree_lookup(const struct nilfs_bmap *bmap,
+static int nilfs_btree_lookup(const struct nilfs_bmap *btree,
__u64 key, int level, __u64 *ptrp)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
- __u64 ptr;
int ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
- ret = nilfs_btree_do_lookup(btree, path, key, &ptr, level);
-
- if (ptrp != NULL)
- *ptrp = ptr;
+ ret = nilfs_btree_do_lookup(btree, path, key, ptrp, level, 0);
nilfs_btree_free_path(path);
return ret;
}
-static int nilfs_btree_lookup_contig(const struct nilfs_bmap *bmap,
+static int nilfs_btree_lookup_contig(const struct nilfs_bmap *btree,
__u64 key, __u64 *ptrp, unsigned maxblocks)
{
- struct nilfs_btree *btree = (struct nilfs_btree *)bmap;
struct nilfs_btree_path *path;
struct nilfs_btree_node *node;
struct inode *dat = NULL;
__u64 ptr, ptr2;
sector_t blocknr;
int level = NILFS_BTREE_LEVEL_NODE_MIN;
- int ret, cnt, index, maxlevel;
+ int ret, cnt, index, maxlevel, ncmax;
+ struct nilfs_btree_readahead_info p;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
- ret = nilfs_btree_do_lookup(btree, path, key, &ptr, level);
+ ret = nilfs_btree_do_lookup(btree, path, key, &ptr, level, 1);
if (ret < 0)
goto out;
- if (NILFS_BMAP_USE_VBN(bmap)) {
- dat = nilfs_bmap_get_dat(bmap);
+ if (NILFS_BMAP_USE_VBN(btree)) {
+ dat = nilfs_bmap_get_dat(btree);
ret = nilfs_dat_translate(dat, ptr, &blocknr);
if (ret < 0)
goto out;
@@ -566,14 +652,14 @@ static int nilfs_btree_lookup_contig(const struct nilfs_bmap *bmap,
goto end;
maxlevel = nilfs_btree_height(btree) - 1;
- node = nilfs_btree_get_node(btree, path, level);
+ node = nilfs_btree_get_node(btree, path, level, &ncmax);
index = path[level].bp_index + 1;
for (;;) {
while (index < nilfs_btree_node_get_nchildren(node)) {
if (nilfs_btree_node_get_key(node, index) !=
key + cnt)
goto end;
- ptr2 = nilfs_btree_node_get_ptr(btree, node, index);
+ ptr2 = nilfs_btree_node_get_ptr(node, index, ncmax);
if (dat) {
ret = nilfs_dat_translate(dat, ptr2, &blocknr);
if (ret < 0)
@@ -589,20 +675,24 @@ static int nilfs_btree_lookup_contig(const struct nilfs_bmap *bmap,
break;
/* look-up right sibling node */
- node = nilfs_btree_get_node(btree, path, level + 1);
- index = path[level + 1].bp_index + 1;
- if (index >= nilfs_btree_node_get_nchildren(node) ||
- nilfs_btree_node_get_key(node, index) != key + cnt)
+ p.node = nilfs_btree_get_node(btree, path, level + 1, &p.ncmax);
+ p.index = path[level + 1].bp_index + 1;
+ p.max_ra_blocks = 7;
+ if (p.index >= nilfs_btree_node_get_nchildren(p.node) ||
+ nilfs_btree_node_get_key(p.node, p.index) != key + cnt)
break;
- ptr2 = nilfs_btree_node_get_ptr(btree, node, index);
- path[level + 1].bp_index = index;
+ ptr2 = nilfs_btree_node_get_ptr(p.node, p.index, p.ncmax);
+ path[level + 1].bp_index = p.index;
brelse(path[level].bp_bh);
path[level].bp_bh = NULL;
- ret = nilfs_btree_get_block(btree, ptr2, &path[level].bp_bh);
+
+ ret = __nilfs_btree_get_block(btree, ptr2, &path[level].bp_bh,
+ &p);
if (ret < 0)
goto out;
node = nilfs_btree_get_nonroot_node(path, level);
+ ncmax = nilfs_btree_nchildren_per_block(btree);
index = 0;
path[level].bp_index = index;
}
@@ -614,7 +704,7 @@ static int nilfs_btree_lookup_contig(const struct nilfs_bmap *bmap,
return ret;
}
-static void nilfs_btree_promote_key(struct nilfs_btree *btree,
+static void nilfs_btree_promote_key(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 key)
{
@@ -636,16 +726,18 @@ static void nilfs_btree_promote_key(struct nilfs_btree *btree,
}
}
-static void nilfs_btree_do_insert(struct nilfs_btree *btree,
+static void nilfs_btree_do_insert(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node;
+ int ncblk;
if (level < nilfs_btree_height(btree) - 1) {
node = nilfs_btree_get_nonroot_node(path, level);
- nilfs_btree_node_insert(btree, node, *keyp, *ptrp,
- path[level].bp_index);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
+ nilfs_btree_node_insert(node, path[level].bp_index,
+ *keyp, *ptrp, ncblk);
if (!buffer_dirty(path[level].bp_bh))
nilfs_btnode_mark_dirty(path[level].bp_bh);
@@ -655,22 +747,24 @@ static void nilfs_btree_do_insert(struct nilfs_btree *btree,
0));
} else {
node = nilfs_btree_get_root(btree);
- nilfs_btree_node_insert(btree, node, *keyp, *ptrp,
- path[level].bp_index);
+ nilfs_btree_node_insert(node, path[level].bp_index,
+ *keyp, *ptrp,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX);
}
}
-static void nilfs_btree_carry_left(struct nilfs_btree *btree,
+static void nilfs_btree_carry_left(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node, *left;
- int nchildren, lnchildren, n, move;
+ int nchildren, lnchildren, n, move, ncblk;
node = nilfs_btree_get_nonroot_node(path, level);
left = nilfs_btree_get_sib_node(path, level);
nchildren = nilfs_btree_node_get_nchildren(node);
lnchildren = nilfs_btree_node_get_nchildren(left);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
move = 0;
n = (nchildren + lnchildren + 1) / 2 - lnchildren;
@@ -680,7 +774,7 @@ static void nilfs_btree_carry_left(struct nilfs_btree *btree,
move = 1;
}
- nilfs_btree_node_move_left(btree, left, node, n);
+ nilfs_btree_node_move_left(left, node, n, ncblk, ncblk);
if (!buffer_dirty(path[level].bp_bh))
nilfs_btnode_mark_dirty(path[level].bp_bh);
@@ -705,17 +799,18 @@ static void nilfs_btree_carry_left(struct nilfs_btree *btree,
nilfs_btree_do_insert(btree, path, level, keyp, ptrp);
}
-static void nilfs_btree_carry_right(struct nilfs_btree *btree,
+static void nilfs_btree_carry_right(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node, *right;
- int nchildren, rnchildren, n, move;
+ int nchildren, rnchildren, n, move, ncblk;
node = nilfs_btree_get_nonroot_node(path, level);
right = nilfs_btree_get_sib_node(path, level);
nchildren = nilfs_btree_node_get_nchildren(node);
rnchildren = nilfs_btree_node_get_nchildren(right);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
move = 0;
n = (nchildren + rnchildren + 1) / 2 - rnchildren;
@@ -725,7 +820,7 @@ static void nilfs_btree_carry_right(struct nilfs_btree *btree,
move = 1;
}
- nilfs_btree_node_move_right(btree, node, right, n);
+ nilfs_btree_node_move_right(node, right, n, ncblk, ncblk);
if (!buffer_dirty(path[level].bp_bh))
nilfs_btnode_mark_dirty(path[level].bp_bh);
@@ -751,18 +846,19 @@ static void nilfs_btree_carry_right(struct nilfs_btree *btree,
nilfs_btree_do_insert(btree, path, level, keyp, ptrp);
}
-static void nilfs_btree_split(struct nilfs_btree *btree,
+static void nilfs_btree_split(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node, *right;
__u64 newkey;
__u64 newptr;
- int nchildren, n, move;
+ int nchildren, n, move, ncblk;
node = nilfs_btree_get_nonroot_node(path, level);
right = nilfs_btree_get_sib_node(path, level);
nchildren = nilfs_btree_node_get_nchildren(node);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
move = 0;
n = (nchildren + 1) / 2;
@@ -771,7 +867,7 @@ static void nilfs_btree_split(struct nilfs_btree *btree,
move = 1;
}
- nilfs_btree_node_move_right(btree, node, right, n);
+ nilfs_btree_node_move_right(node, right, n, ncblk, ncblk);
if (!buffer_dirty(path[level].bp_bh))
nilfs_btnode_mark_dirty(path[level].bp_bh);
@@ -783,8 +879,8 @@ static void nilfs_btree_split(struct nilfs_btree *btree,
if (move) {
path[level].bp_index -= nilfs_btree_node_get_nchildren(node);
- nilfs_btree_node_insert(btree, right, *keyp, *ptrp,
- path[level].bp_index);
+ nilfs_btree_node_insert(right, path[level].bp_index,
+ *keyp, *ptrp, ncblk);
*keyp = nilfs_btree_node_get_key(right, 0);
*ptrp = path[level].bp_newreq.bpr_ptr;
@@ -805,19 +901,21 @@ static void nilfs_btree_split(struct nilfs_btree *btree,
path[level + 1].bp_index++;
}
-static void nilfs_btree_grow(struct nilfs_btree *btree,
+static void nilfs_btree_grow(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *root, *child;
- int n;
+ int n, ncblk;
root = nilfs_btree_get_root(btree);
child = nilfs_btree_get_sib_node(path, level);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
n = nilfs_btree_node_get_nchildren(root);
- nilfs_btree_node_move_right(btree, root, child, n);
+ nilfs_btree_node_move_right(root, child, n,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX, ncblk);
nilfs_btree_node_set_level(root, level + 1);
if (!buffer_dirty(path[level].bp_sib_bh))
@@ -832,11 +930,11 @@ static void nilfs_btree_grow(struct nilfs_btree *btree,
*ptrp = path[level].bp_newreq.bpr_ptr;
}
-static __u64 nilfs_btree_find_near(const struct nilfs_btree *btree,
+static __u64 nilfs_btree_find_near(const struct nilfs_bmap *btree,
const struct nilfs_btree_path *path)
{
struct nilfs_btree_node *node;
- int level;
+ int level, ncmax;
if (path == NULL)
return NILFS_BMAP_INVALID_PTR;
@@ -844,29 +942,30 @@ static __u64 nilfs_btree_find_near(const struct nilfs_btree *btree,
/* left sibling */
level = NILFS_BTREE_LEVEL_NODE_MIN;
if (path[level].bp_index > 0) {
- node = nilfs_btree_get_node(btree, path, level);
- return nilfs_btree_node_get_ptr(btree, node,
- path[level].bp_index - 1);
+ node = nilfs_btree_get_node(btree, path, level, &ncmax);
+ return nilfs_btree_node_get_ptr(node,
+ path[level].bp_index - 1,
+ ncmax);
}
/* parent */
level = NILFS_BTREE_LEVEL_NODE_MIN + 1;
if (level <= nilfs_btree_height(btree) - 1) {
- node = nilfs_btree_get_node(btree, path, level);
- return nilfs_btree_node_get_ptr(btree, node,
- path[level].bp_index);
+ node = nilfs_btree_get_node(btree, path, level, &ncmax);
+ return nilfs_btree_node_get_ptr(node, path[level].bp_index,
+ ncmax);
}
return NILFS_BMAP_INVALID_PTR;
}
-static __u64 nilfs_btree_find_target_v(const struct nilfs_btree *btree,
+static __u64 nilfs_btree_find_target_v(const struct nilfs_bmap *btree,
const struct nilfs_btree_path *path,
__u64 key)
{
__u64 ptr;
- ptr = nilfs_bmap_find_target_seq(&btree->bt_bmap, key);
+ ptr = nilfs_bmap_find_target_seq(btree, key);
if (ptr != NILFS_BMAP_INVALID_PTR)
/* sequential access */
return ptr;
@@ -877,17 +976,10 @@ static __u64 nilfs_btree_find_target_v(const struct nilfs_btree *btree,
return ptr;
}
/* block group */
- return nilfs_bmap_find_target_in_group(&btree->bt_bmap);
-}
-
-static void nilfs_btree_set_target_v(struct nilfs_btree *btree, __u64 key,
- __u64 ptr)
-{
- btree->bt_bmap.b_last_allocated_key = key;
- btree->bt_bmap.b_last_allocated_ptr = ptr;
+ return nilfs_bmap_find_target_in_group(btree);
}
-static int nilfs_btree_prepare_insert(struct nilfs_btree *btree,
+static int nilfs_btree_prepare_insert(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int *levelp, __u64 key, __u64 ptr,
struct nilfs_bmap_stats *stats)
@@ -895,79 +987,78 @@ static int nilfs_btree_prepare_insert(struct nilfs_btree *btree,
struct buffer_head *bh;
struct nilfs_btree_node *node, *parent, *sib;
__u64 sibptr;
- int pindex, level, ret;
+ int pindex, level, ncmax, ncblk, ret;
struct inode *dat = NULL;
stats->bs_nblocks = 0;
level = NILFS_BTREE_LEVEL_DATA;
/* allocate a new ptr for data block */
- if (NILFS_BMAP_USE_VBN(&btree->bt_bmap)) {
+ if (NILFS_BMAP_USE_VBN(btree)) {
path[level].bp_newreq.bpr_ptr =
nilfs_btree_find_target_v(btree, path, key);
- dat = nilfs_bmap_get_dat(&btree->bt_bmap);
+ dat = nilfs_bmap_get_dat(btree);
}
- ret = nilfs_bmap_prepare_alloc_ptr(&btree->bt_bmap,
- &path[level].bp_newreq, dat);
+ ret = nilfs_bmap_prepare_alloc_ptr(btree, &path[level].bp_newreq, dat);
if (ret < 0)
goto err_out_data;
+ ncblk = nilfs_btree_nchildren_per_block(btree);
+
for (level = NILFS_BTREE_LEVEL_NODE_MIN;
level < nilfs_btree_height(btree) - 1;
level++) {
node = nilfs_btree_get_nonroot_node(path, level);
- if (nilfs_btree_node_get_nchildren(node) <
- nilfs_btree_node_nchildren_max(node, btree)) {
+ if (nilfs_btree_node_get_nchildren(node) < ncblk) {
path[level].bp_op = nilfs_btree_do_insert;
stats->bs_nblocks++;
goto out;
}
- parent = nilfs_btree_get_node(btree, path, level + 1);
+ parent = nilfs_btree_get_node(btree, path, level + 1, &ncmax);
pindex = path[level + 1].bp_index;
/* left sibling */
if (pindex > 0) {
- sibptr = nilfs_btree_node_get_ptr(btree, parent,
- pindex - 1);
+ sibptr = nilfs_btree_node_get_ptr(parent, pindex - 1,
+ ncmax);
ret = nilfs_btree_get_block(btree, sibptr, &bh);
if (ret < 0)
goto err_out_child_node;
sib = (struct nilfs_btree_node *)bh->b_data;
- if (nilfs_btree_node_get_nchildren(sib) <
- nilfs_btree_node_nchildren_max(sib, btree)) {
+ if (nilfs_btree_node_get_nchildren(sib) < ncblk) {
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_carry_left;
stats->bs_nblocks++;
goto out;
- } else
+ } else {
brelse(bh);
+ }
}
/* right sibling */
- if (pindex <
- nilfs_btree_node_get_nchildren(parent) - 1) {
- sibptr = nilfs_btree_node_get_ptr(btree, parent,
- pindex + 1);
+ if (pindex < nilfs_btree_node_get_nchildren(parent) - 1) {
+ sibptr = nilfs_btree_node_get_ptr(parent, pindex + 1,
+ ncmax);
ret = nilfs_btree_get_block(btree, sibptr, &bh);
if (ret < 0)
goto err_out_child_node;
sib = (struct nilfs_btree_node *)bh->b_data;
- if (nilfs_btree_node_get_nchildren(sib) <
- nilfs_btree_node_nchildren_max(sib, btree)) {
+ if (nilfs_btree_node_get_nchildren(sib) < ncblk) {
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_carry_right;
stats->bs_nblocks++;
goto out;
- } else
+ } else {
brelse(bh);
+ }
}
/* split */
path[level].bp_newreq.bpr_ptr =
path[level - 1].bp_newreq.bpr_ptr + 1;
- ret = nilfs_bmap_prepare_alloc_ptr(&btree->bt_bmap,
+ ret = nilfs_bmap_prepare_alloc_ptr(btree,
&path[level].bp_newreq, dat);
if (ret < 0)
goto err_out_child_node;
@@ -979,9 +1070,8 @@ static int nilfs_btree_prepare_insert(struct nilfs_btree *btree,
stats->bs_nblocks++;
- nilfs_btree_node_init(btree,
- (struct nilfs_btree_node *)bh->b_data,
- 0, level, 0, NULL, NULL);
+ sib = (struct nilfs_btree_node *)bh->b_data;
+ nilfs_btree_node_init(sib, 0, level, 0, ncblk, NULL, NULL);
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_split;
}
@@ -989,7 +1079,7 @@ static int nilfs_btree_prepare_insert(struct nilfs_btree *btree,
/* root */
node = nilfs_btree_get_root(btree);
if (nilfs_btree_node_get_nchildren(node) <
- nilfs_btree_node_nchildren_max(node, btree)) {
+ NILFS_BTREE_ROOT_NCHILDREN_MAX) {
path[level].bp_op = nilfs_btree_do_insert;
stats->bs_nblocks++;
goto out;
@@ -997,8 +1087,7 @@ static int nilfs_btree_prepare_insert(struct nilfs_btree *btree,
/* grow */
path[level].bp_newreq.bpr_ptr = path[level - 1].bp_newreq.bpr_ptr + 1;
- ret = nilfs_bmap_prepare_alloc_ptr(&btree->bt_bmap,
- &path[level].bp_newreq, dat);
+ ret = nilfs_bmap_prepare_alloc_ptr(btree, &path[level].bp_newreq, dat);
if (ret < 0)
goto err_out_child_node;
ret = nilfs_btree_get_new_block(btree, path[level].bp_newreq.bpr_ptr,
@@ -1006,8 +1095,8 @@ static int nilfs_btree_prepare_insert(struct nilfs_btree *btree,
if (ret < 0)
goto err_out_curr_node;
- nilfs_btree_node_init(btree, (struct nilfs_btree_node *)bh->b_data,
- 0, level, 0, NULL, NULL);
+ nilfs_btree_node_init((struct nilfs_btree_node *)bh->b_data,
+ 0, level, 0, ncblk, NULL, NULL);
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_grow;
@@ -1024,25 +1113,22 @@ static int nilfs_btree_prepare_insert(struct nilfs_btree *btree,
/* error */
err_out_curr_node:
- nilfs_bmap_abort_alloc_ptr(&btree->bt_bmap, &path[level].bp_newreq,
- dat);
+ nilfs_bmap_abort_alloc_ptr(btree, &path[level].bp_newreq, dat);
err_out_child_node:
for (level--; level > NILFS_BTREE_LEVEL_DATA; level--) {
nilfs_btnode_delete(path[level].bp_sib_bh);
- nilfs_bmap_abort_alloc_ptr(&btree->bt_bmap,
- &path[level].bp_newreq, dat);
+ nilfs_bmap_abort_alloc_ptr(btree, &path[level].bp_newreq, dat);
}
- nilfs_bmap_abort_alloc_ptr(&btree->bt_bmap, &path[level].bp_newreq,
- dat);
+ nilfs_bmap_abort_alloc_ptr(btree, &path[level].bp_newreq, dat);
err_out_data:
*levelp = level;
stats->bs_nblocks = 0;
return ret;
}
-static void nilfs_btree_commit_insert(struct nilfs_btree *btree,
+static void nilfs_btree_commit_insert(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int maxlevel, __u64 key, __u64 ptr)
{
@@ -1051,35 +1137,33 @@ static void nilfs_btree_commit_insert(struct nilfs_btree *btree,
set_buffer_nilfs_volatile((struct buffer_head *)((unsigned long)ptr));
ptr = path[NILFS_BTREE_LEVEL_DATA].bp_newreq.bpr_ptr;
- if (NILFS_BMAP_USE_VBN(&btree->bt_bmap)) {
- nilfs_btree_set_target_v(btree, key, ptr);
- dat = nilfs_bmap_get_dat(&btree->bt_bmap);
+ if (NILFS_BMAP_USE_VBN(btree)) {
+ nilfs_bmap_set_target_v(btree, key, ptr);
+ dat = nilfs_bmap_get_dat(btree);
}
for (level = NILFS_BTREE_LEVEL_NODE_MIN; level <= maxlevel; level++) {
- nilfs_bmap_commit_alloc_ptr(&btree->bt_bmap,
+ nilfs_bmap_commit_alloc_ptr(btree,
&path[level - 1].bp_newreq, dat);
path[level].bp_op(btree, path, level, &key, &ptr);
}
- if (!nilfs_bmap_dirty(&btree->bt_bmap))
- nilfs_bmap_set_dirty(&btree->bt_bmap);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
}
-static int nilfs_btree_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
+static int nilfs_btree_insert(struct nilfs_bmap *btree, __u64 key, __u64 ptr)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
struct nilfs_bmap_stats stats;
int level, ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
ret = nilfs_btree_do_lookup(btree, path, key, NULL,
- NILFS_BTREE_LEVEL_NODE_MIN);
+ NILFS_BTREE_LEVEL_NODE_MIN, 0);
if (ret != -ENOENT) {
if (ret == 0)
ret = -EEXIST;
@@ -1090,23 +1174,25 @@ static int nilfs_btree_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
if (ret < 0)
goto out;
nilfs_btree_commit_insert(btree, path, level, key, ptr);
- nilfs_bmap_add_blocks(bmap, stats.bs_nblocks);
+ nilfs_bmap_add_blocks(btree, stats.bs_nblocks);
out:
nilfs_btree_free_path(path);
return ret;
}
-static void nilfs_btree_do_delete(struct nilfs_btree *btree,
+static void nilfs_btree_do_delete(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node;
+ int ncblk;
if (level < nilfs_btree_height(btree) - 1) {
node = nilfs_btree_get_nonroot_node(path, level);
- nilfs_btree_node_delete(btree, node, keyp, ptrp,
- path[level].bp_index);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
+ nilfs_btree_node_delete(node, path[level].bp_index,
+ keyp, ptrp, ncblk);
if (!buffer_dirty(path[level].bp_bh))
nilfs_btnode_mark_dirty(path[level].bp_bh);
if (path[level].bp_index == 0)
@@ -1114,17 +1200,18 @@ static void nilfs_btree_do_delete(struct nilfs_btree *btree,
nilfs_btree_node_get_key(node, 0));
} else {
node = nilfs_btree_get_root(btree);
- nilfs_btree_node_delete(btree, node, keyp, ptrp,
- path[level].bp_index);
+ nilfs_btree_node_delete(node, path[level].bp_index,
+ keyp, ptrp,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX);
}
}
-static void nilfs_btree_borrow_left(struct nilfs_btree *btree,
+static void nilfs_btree_borrow_left(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node, *left;
- int nchildren, lnchildren, n;
+ int nchildren, lnchildren, n, ncblk;
nilfs_btree_do_delete(btree, path, level, keyp, ptrp);
@@ -1132,10 +1219,11 @@ static void nilfs_btree_borrow_left(struct nilfs_btree *btree,
left = nilfs_btree_get_sib_node(path, level);
nchildren = nilfs_btree_node_get_nchildren(node);
lnchildren = nilfs_btree_node_get_nchildren(left);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
n = (nchildren + lnchildren) / 2 - nchildren;
- nilfs_btree_node_move_right(btree, left, node, n);
+ nilfs_btree_node_move_right(left, node, n, ncblk, ncblk);
if (!buffer_dirty(path[level].bp_bh))
nilfs_btnode_mark_dirty(path[level].bp_bh);
@@ -1150,12 +1238,12 @@ static void nilfs_btree_borrow_left(struct nilfs_btree *btree,
path[level].bp_index += n;
}
-static void nilfs_btree_borrow_right(struct nilfs_btree *btree,
+static void nilfs_btree_borrow_right(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node, *right;
- int nchildren, rnchildren, n;
+ int nchildren, rnchildren, n, ncblk;
nilfs_btree_do_delete(btree, path, level, keyp, ptrp);
@@ -1163,10 +1251,11 @@ static void nilfs_btree_borrow_right(struct nilfs_btree *btree,
right = nilfs_btree_get_sib_node(path, level);
nchildren = nilfs_btree_node_get_nchildren(node);
rnchildren = nilfs_btree_node_get_nchildren(right);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
n = (nchildren + rnchildren) / 2 - nchildren;
- nilfs_btree_node_move_left(btree, node, right, n);
+ nilfs_btree_node_move_left(node, right, n, ncblk, ncblk);
if (!buffer_dirty(path[level].bp_bh))
nilfs_btnode_mark_dirty(path[level].bp_bh);
@@ -1182,21 +1271,22 @@ static void nilfs_btree_borrow_right(struct nilfs_btree *btree,
path[level].bp_sib_bh = NULL;
}
-static void nilfs_btree_concat_left(struct nilfs_btree *btree,
+static void nilfs_btree_concat_left(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node, *left;
- int n;
+ int n, ncblk;
nilfs_btree_do_delete(btree, path, level, keyp, ptrp);
node = nilfs_btree_get_nonroot_node(path, level);
left = nilfs_btree_get_sib_node(path, level);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
n = nilfs_btree_node_get_nchildren(node);
- nilfs_btree_node_move_left(btree, left, node, n);
+ nilfs_btree_node_move_left(left, node, n, ncblk, ncblk);
if (!buffer_dirty(path[level].bp_sib_bh))
nilfs_btnode_mark_dirty(path[level].bp_sib_bh);
@@ -1207,21 +1297,22 @@ static void nilfs_btree_concat_left(struct nilfs_btree *btree,
path[level].bp_index += nilfs_btree_node_get_nchildren(left);
}
-static void nilfs_btree_concat_right(struct nilfs_btree *btree,
+static void nilfs_btree_concat_right(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *node, *right;
- int n;
+ int n, ncblk;
nilfs_btree_do_delete(btree, path, level, keyp, ptrp);
node = nilfs_btree_get_nonroot_node(path, level);
right = nilfs_btree_get_sib_node(path, level);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
n = nilfs_btree_node_get_nchildren(right);
- nilfs_btree_node_move_left(btree, node, right, n);
+ nilfs_btree_node_move_left(node, right, n, ncblk, ncblk);
if (!buffer_dirty(path[level].bp_bh))
nilfs_btnode_mark_dirty(path[level].bp_bh);
@@ -1231,29 +1322,32 @@ static void nilfs_btree_concat_right(struct nilfs_btree *btree,
path[level + 1].bp_index++;
}
-static void nilfs_btree_shrink(struct nilfs_btree *btree,
+static void nilfs_btree_shrink(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
struct nilfs_btree_node *root, *child;
- int n;
+ int n, ncblk;
nilfs_btree_do_delete(btree, path, level, keyp, ptrp);
root = nilfs_btree_get_root(btree);
child = nilfs_btree_get_nonroot_node(path, level);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
- nilfs_btree_node_delete(btree, root, NULL, NULL, 0);
+ nilfs_btree_node_delete(root, 0, NULL, NULL,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX);
nilfs_btree_node_set_level(root, level);
n = nilfs_btree_node_get_nchildren(child);
- nilfs_btree_node_move_left(btree, root, child, n);
+ nilfs_btree_node_move_left(root, child, n,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX, ncblk);
nilfs_btnode_delete(path[level].bp_bh);
path[level].bp_bh = NULL;
}
-static int nilfs_btree_prepare_delete(struct nilfs_btree *btree,
+static int nilfs_btree_prepare_delete(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int *levelp,
struct nilfs_bmap_stats *stats,
@@ -1262,42 +1356,43 @@ static int nilfs_btree_prepare_delete(struct nilfs_btree *btree,
struct buffer_head *bh;
struct nilfs_btree_node *node, *parent, *sib;
__u64 sibptr;
- int pindex, level, ret;
+ int pindex, level, ncmin, ncmax, ncblk, ret;
ret = 0;
stats->bs_nblocks = 0;
+ ncmin = NILFS_BTREE_NODE_NCHILDREN_MIN(nilfs_btree_node_size(btree));
+ ncblk = nilfs_btree_nchildren_per_block(btree);
+
for (level = NILFS_BTREE_LEVEL_NODE_MIN;
level < nilfs_btree_height(btree) - 1;
level++) {
node = nilfs_btree_get_nonroot_node(path, level);
path[level].bp_oldreq.bpr_ptr =
- nilfs_btree_node_get_ptr(btree, node,
- path[level].bp_index);
- ret = nilfs_bmap_prepare_end_ptr(&btree->bt_bmap,
+ nilfs_btree_node_get_ptr(node, path[level].bp_index,
+ ncblk);
+ ret = nilfs_bmap_prepare_end_ptr(btree,
&path[level].bp_oldreq, dat);
if (ret < 0)
goto err_out_child_node;
- if (nilfs_btree_node_get_nchildren(node) >
- nilfs_btree_node_nchildren_min(node, btree)) {
+ if (nilfs_btree_node_get_nchildren(node) > ncmin) {
path[level].bp_op = nilfs_btree_do_delete;
stats->bs_nblocks++;
goto out;
}
- parent = nilfs_btree_get_node(btree, path, level + 1);
+ parent = nilfs_btree_get_node(btree, path, level + 1, &ncmax);
pindex = path[level + 1].bp_index;
if (pindex > 0) {
/* left sibling */
- sibptr = nilfs_btree_node_get_ptr(btree, parent,
- pindex - 1);
+ sibptr = nilfs_btree_node_get_ptr(parent, pindex - 1,
+ ncmax);
ret = nilfs_btree_get_block(btree, sibptr, &bh);
if (ret < 0)
goto err_out_curr_node;
sib = (struct nilfs_btree_node *)bh->b_data;
- if (nilfs_btree_node_get_nchildren(sib) >
- nilfs_btree_node_nchildren_min(sib, btree)) {
+ if (nilfs_btree_node_get_nchildren(sib) > ncmin) {
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_borrow_left;
stats->bs_nblocks++;
@@ -1311,14 +1406,13 @@ static int nilfs_btree_prepare_delete(struct nilfs_btree *btree,
} else if (pindex <
nilfs_btree_node_get_nchildren(parent) - 1) {
/* right sibling */
- sibptr = nilfs_btree_node_get_ptr(btree, parent,
- pindex + 1);
+ sibptr = nilfs_btree_node_get_ptr(parent, pindex + 1,
+ ncmax);
ret = nilfs_btree_get_block(btree, sibptr, &bh);
if (ret < 0)
goto err_out_curr_node;
sib = (struct nilfs_btree_node *)bh->b_data;
- if (nilfs_btree_node_get_nchildren(sib) >
- nilfs_btree_node_nchildren_min(sib, btree)) {
+ if (nilfs_btree_node_get_nchildren(sib) > ncmin) {
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_borrow_right;
stats->bs_nblocks++;
@@ -1349,10 +1443,10 @@ static int nilfs_btree_prepare_delete(struct nilfs_btree *btree,
node = nilfs_btree_get_root(btree);
path[level].bp_oldreq.bpr_ptr =
- nilfs_btree_node_get_ptr(btree, node, path[level].bp_index);
+ nilfs_btree_node_get_ptr(node, path[level].bp_index,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX);
- ret = nilfs_bmap_prepare_end_ptr(&btree->bt_bmap,
- &path[level].bp_oldreq, dat);
+ ret = nilfs_bmap_prepare_end_ptr(btree, &path[level].bp_oldreq, dat);
if (ret < 0)
goto err_out_child_node;
@@ -1367,75 +1461,68 @@ static int nilfs_btree_prepare_delete(struct nilfs_btree *btree,
/* error */
err_out_curr_node:
- nilfs_bmap_abort_end_ptr(&btree->bt_bmap, &path[level].bp_oldreq, dat);
+ nilfs_bmap_abort_end_ptr(btree, &path[level].bp_oldreq, dat);
err_out_child_node:
for (level--; level >= NILFS_BTREE_LEVEL_NODE_MIN; level--) {
brelse(path[level].bp_sib_bh);
- nilfs_bmap_abort_end_ptr(&btree->bt_bmap,
- &path[level].bp_oldreq, dat);
+ nilfs_bmap_abort_end_ptr(btree, &path[level].bp_oldreq, dat);
}
*levelp = level;
stats->bs_nblocks = 0;
return ret;
}
-static void nilfs_btree_commit_delete(struct nilfs_btree *btree,
+static void nilfs_btree_commit_delete(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int maxlevel, struct inode *dat)
{
int level;
for (level = NILFS_BTREE_LEVEL_NODE_MIN; level <= maxlevel; level++) {
- nilfs_bmap_commit_end_ptr(&btree->bt_bmap,
- &path[level].bp_oldreq, dat);
+ nilfs_bmap_commit_end_ptr(btree, &path[level].bp_oldreq, dat);
path[level].bp_op(btree, path, level, NULL, NULL);
}
- if (!nilfs_bmap_dirty(&btree->bt_bmap))
- nilfs_bmap_set_dirty(&btree->bt_bmap);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
}
-static int nilfs_btree_delete(struct nilfs_bmap *bmap, __u64 key)
+static int nilfs_btree_delete(struct nilfs_bmap *btree, __u64 key)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
struct nilfs_bmap_stats stats;
struct inode *dat;
int level, ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
ret = nilfs_btree_do_lookup(btree, path, key, NULL,
- NILFS_BTREE_LEVEL_NODE_MIN);
+ NILFS_BTREE_LEVEL_NODE_MIN, 0);
if (ret < 0)
goto out;
- dat = NILFS_BMAP_USE_VBN(&btree->bt_bmap) ?
- nilfs_bmap_get_dat(&btree->bt_bmap) : NULL;
+ dat = NILFS_BMAP_USE_VBN(btree) ? nilfs_bmap_get_dat(btree) : NULL;
ret = nilfs_btree_prepare_delete(btree, path, &level, &stats, dat);
if (ret < 0)
goto out;
nilfs_btree_commit_delete(btree, path, level, dat);
- nilfs_bmap_sub_blocks(bmap, stats.bs_nblocks);
+ nilfs_bmap_sub_blocks(btree, stats.bs_nblocks);
out:
nilfs_btree_free_path(path);
return ret;
}
-static int nilfs_btree_last_key(const struct nilfs_bmap *bmap, __u64 *keyp)
+static int nilfs_btree_last_key(const struct nilfs_bmap *btree, __u64 *keyp)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
int ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -1447,16 +1534,14 @@ static int nilfs_btree_last_key(const struct nilfs_bmap *bmap, __u64 *keyp)
return ret;
}
-static int nilfs_btree_check_delete(struct nilfs_bmap *bmap, __u64 key)
+static int nilfs_btree_check_delete(struct nilfs_bmap *btree, __u64 key)
{
struct buffer_head *bh;
- struct nilfs_btree *btree;
struct nilfs_btree_node *root, *node;
__u64 maxkey, nextmaxkey;
__u64 ptr;
int nchildren, ret;
- btree = (struct nilfs_btree *)bmap;
root = nilfs_btree_get_root(btree);
switch (nilfs_btree_height(btree)) {
case 2:
@@ -1467,7 +1552,8 @@ static int nilfs_btree_check_delete(struct nilfs_bmap *bmap, __u64 key)
nchildren = nilfs_btree_node_get_nchildren(root);
if (nchildren > 1)
return 0;
- ptr = nilfs_btree_node_get_ptr(btree, root, nchildren - 1);
+ ptr = nilfs_btree_node_get_ptr(root, nchildren - 1,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX);
ret = nilfs_btree_get_block(btree, ptr, &bh);
if (ret < 0)
return ret;
@@ -1487,32 +1573,33 @@ static int nilfs_btree_check_delete(struct nilfs_bmap *bmap, __u64 key)
return (maxkey == key) && (nextmaxkey < NILFS_BMAP_LARGE_LOW);
}
-static int nilfs_btree_gather_data(struct nilfs_bmap *bmap,
+static int nilfs_btree_gather_data(struct nilfs_bmap *btree,
__u64 *keys, __u64 *ptrs, int nitems)
{
struct buffer_head *bh;
- struct nilfs_btree *btree;
struct nilfs_btree_node *node, *root;
__le64 *dkeys;
__le64 *dptrs;
__u64 ptr;
- int nchildren, i, ret;
+ int nchildren, ncmax, i, ret;
- btree = (struct nilfs_btree *)bmap;
root = nilfs_btree_get_root(btree);
switch (nilfs_btree_height(btree)) {
case 2:
bh = NULL;
node = root;
+ ncmax = NILFS_BTREE_ROOT_NCHILDREN_MAX;
break;
case 3:
nchildren = nilfs_btree_node_get_nchildren(root);
WARN_ON(nchildren > 1);
- ptr = nilfs_btree_node_get_ptr(btree, root, nchildren - 1);
+ ptr = nilfs_btree_node_get_ptr(root, nchildren - 1,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX);
ret = nilfs_btree_get_block(btree, ptr, &bh);
if (ret < 0)
return ret;
node = (struct nilfs_btree_node *)bh->b_data;
+ ncmax = nilfs_btree_nchildren_per_block(btree);
break;
default:
node = NULL;
@@ -1523,10 +1610,10 @@ static int nilfs_btree_gather_data(struct nilfs_bmap *bmap,
if (nchildren < nitems)
nitems = nchildren;
dkeys = nilfs_btree_node_dkeys(node);
- dptrs = nilfs_btree_node_dptrs(node, btree);
+ dptrs = nilfs_btree_node_dptrs(node, ncmax);
for (i = 0; i < nitems; i++) {
- keys[i] = nilfs_bmap_dkey_to_key(dkeys[i]);
- ptrs[i] = nilfs_bmap_dptr_to_ptr(dptrs[i]);
+ keys[i] = le64_to_cpu(dkeys[i]);
+ ptrs[i] = le64_to_cpu(dptrs[i]);
}
if (bh != NULL)
@@ -1536,14 +1623,13 @@ static int nilfs_btree_gather_data(struct nilfs_bmap *bmap,
}
static int
-nilfs_btree_prepare_convert_and_insert(struct nilfs_bmap *bmap, __u64 key,
+nilfs_btree_prepare_convert_and_insert(struct nilfs_bmap *btree, __u64 key,
union nilfs_bmap_ptr_req *dreq,
union nilfs_bmap_ptr_req *nreq,
struct buffer_head **bhp,
struct nilfs_bmap_stats *stats)
{
struct buffer_head *bh;
- struct nilfs_btree *btree = (struct nilfs_btree *)bmap;
struct inode *dat = NULL;
int ret;
@@ -1551,12 +1637,12 @@ nilfs_btree_prepare_convert_and_insert(struct nilfs_bmap *bmap, __u64 key,
/* for data */
/* cannot find near ptr */
- if (NILFS_BMAP_USE_VBN(bmap)) {
+ if (NILFS_BMAP_USE_VBN(btree)) {
dreq->bpr_ptr = nilfs_btree_find_target_v(btree, NULL, key);
- dat = nilfs_bmap_get_dat(bmap);
+ dat = nilfs_bmap_get_dat(btree);
}
- ret = nilfs_bmap_prepare_alloc_ptr(bmap, dreq, dat);
+ ret = nilfs_bmap_prepare_alloc_ptr(btree, dreq, dat);
if (ret < 0)
return ret;
@@ -1564,7 +1650,7 @@ nilfs_btree_prepare_convert_and_insert(struct nilfs_bmap *bmap, __u64 key,
stats->bs_nblocks++;
if (nreq != NULL) {
nreq->bpr_ptr = dreq->bpr_ptr + 1;
- ret = nilfs_bmap_prepare_alloc_ptr(bmap, nreq, dat);
+ ret = nilfs_bmap_prepare_alloc_ptr(btree, nreq, dat);
if (ret < 0)
goto err_out_dreq;
@@ -1581,16 +1667,16 @@ nilfs_btree_prepare_convert_and_insert(struct nilfs_bmap *bmap, __u64 key,
/* error */
err_out_nreq:
- nilfs_bmap_abort_alloc_ptr(bmap, nreq, dat);
+ nilfs_bmap_abort_alloc_ptr(btree, nreq, dat);
err_out_dreq:
- nilfs_bmap_abort_alloc_ptr(bmap, dreq, dat);
+ nilfs_bmap_abort_alloc_ptr(btree, dreq, dat);
stats->bs_nblocks = 0;
return ret;
}
static void
-nilfs_btree_commit_convert_and_insert(struct nilfs_bmap *bmap,
+nilfs_btree_commit_convert_and_insert(struct nilfs_bmap *btree,
__u64 key, __u64 ptr,
const __u64 *keys, const __u64 *ptrs,
int n,
@@ -1598,57 +1684,59 @@ nilfs_btree_commit_convert_and_insert(struct nilfs_bmap *bmap,
union nilfs_bmap_ptr_req *nreq,
struct buffer_head *bh)
{
- struct nilfs_btree *btree = (struct nilfs_btree *)bmap;
struct nilfs_btree_node *node;
struct inode *dat;
__u64 tmpptr;
+ int ncblk;
/* free resources */
- if (bmap->b_ops->bop_clear != NULL)
- bmap->b_ops->bop_clear(bmap);
+ if (btree->b_ops->bop_clear != NULL)
+ btree->b_ops->bop_clear(btree);
/* ptr must be a pointer to a buffer head. */
set_buffer_nilfs_volatile((struct buffer_head *)((unsigned long)ptr));
/* convert and insert */
- dat = NILFS_BMAP_USE_VBN(bmap) ? nilfs_bmap_get_dat(bmap) : NULL;
- nilfs_btree_init(bmap);
+ dat = NILFS_BMAP_USE_VBN(btree) ? nilfs_bmap_get_dat(btree) : NULL;
+ nilfs_btree_init(btree);
if (nreq != NULL) {
- nilfs_bmap_commit_alloc_ptr(bmap, dreq, dat);
- nilfs_bmap_commit_alloc_ptr(bmap, nreq, dat);
+ nilfs_bmap_commit_alloc_ptr(btree, dreq, dat);
+ nilfs_bmap_commit_alloc_ptr(btree, nreq, dat);
/* create child node at level 1 */
node = (struct nilfs_btree_node *)bh->b_data;
- nilfs_btree_node_init(btree, node, 0, 1, n, keys, ptrs);
- nilfs_btree_node_insert(btree, node,
- key, dreq->bpr_ptr, n);
+ ncblk = nilfs_btree_nchildren_per_block(btree);
+ nilfs_btree_node_init(node, 0, 1, n, ncblk, keys, ptrs);
+ nilfs_btree_node_insert(node, n, key, dreq->bpr_ptr, ncblk);
if (!buffer_dirty(bh))
nilfs_btnode_mark_dirty(bh);
- if (!nilfs_bmap_dirty(bmap))
- nilfs_bmap_set_dirty(bmap);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
brelse(bh);
/* create root node at level 2 */
node = nilfs_btree_get_root(btree);
tmpptr = nreq->bpr_ptr;
- nilfs_btree_node_init(btree, node, NILFS_BTREE_NODE_ROOT,
- 2, 1, &keys[0], &tmpptr);
+ nilfs_btree_node_init(node, NILFS_BTREE_NODE_ROOT, 2, 1,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX,
+ &keys[0], &tmpptr);
} else {
- nilfs_bmap_commit_alloc_ptr(bmap, dreq, dat);
+ nilfs_bmap_commit_alloc_ptr(btree, dreq, dat);
/* create root node at level 1 */
node = nilfs_btree_get_root(btree);
- nilfs_btree_node_init(btree, node, NILFS_BTREE_NODE_ROOT,
- 1, n, keys, ptrs);
- nilfs_btree_node_insert(btree, node,
- key, dreq->bpr_ptr, n);
- if (!nilfs_bmap_dirty(bmap))
- nilfs_bmap_set_dirty(bmap);
+ nilfs_btree_node_init(node, NILFS_BTREE_NODE_ROOT, 1, n,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX,
+ keys, ptrs);
+ nilfs_btree_node_insert(node, n, key, dreq->bpr_ptr,
+ NILFS_BTREE_ROOT_NCHILDREN_MAX);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
}
- if (NILFS_BMAP_USE_VBN(bmap))
- nilfs_btree_set_target_v(btree, key, dreq->bpr_ptr);
+ if (NILFS_BMAP_USE_VBN(btree))
+ nilfs_bmap_set_target_v(btree, key, dreq->bpr_ptr);
}
/**
@@ -1660,7 +1748,7 @@ nilfs_btree_commit_convert_and_insert(struct nilfs_bmap *bmap,
* @ptrs:
* @n:
*/
-int nilfs_btree_convert_and_insert(struct nilfs_bmap *bmap,
+int nilfs_btree_convert_and_insert(struct nilfs_bmap *btree,
__u64 key, __u64 ptr,
const __u64 *keys, const __u64 *ptrs, int n)
{
@@ -1673,7 +1761,7 @@ int nilfs_btree_convert_and_insert(struct nilfs_bmap *bmap,
di = &dreq;
ni = NULL;
} else if ((n + 1) <= NILFS_BTREE_NODE_NCHILDREN_MAX(
- 1 << bmap->b_inode->i_blkbits)) {
+ 1 << btree->b_inode->i_blkbits)) {
di = &dreq;
ni = &nreq;
} else {
@@ -1682,17 +1770,17 @@ int nilfs_btree_convert_and_insert(struct nilfs_bmap *bmap,
BUG();
}
- ret = nilfs_btree_prepare_convert_and_insert(bmap, key, di, ni, &bh,
+ ret = nilfs_btree_prepare_convert_and_insert(btree, key, di, ni, &bh,
&stats);
if (ret < 0)
return ret;
- nilfs_btree_commit_convert_and_insert(bmap, key, ptr, keys, ptrs, n,
+ nilfs_btree_commit_convert_and_insert(btree, key, ptr, keys, ptrs, n,
di, ni, bh);
- nilfs_bmap_add_blocks(bmap, stats.bs_nblocks);
+ nilfs_bmap_add_blocks(btree, stats.bs_nblocks);
return 0;
}
-static int nilfs_btree_propagate_p(struct nilfs_btree *btree,
+static int nilfs_btree_propagate_p(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level,
struct buffer_head *bh)
@@ -1704,17 +1792,17 @@ static int nilfs_btree_propagate_p(struct nilfs_btree *btree,
return 0;
}
-static int nilfs_btree_prepare_update_v(struct nilfs_btree *btree,
+static int nilfs_btree_prepare_update_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, struct inode *dat)
{
struct nilfs_btree_node *parent;
- int ret;
+ int ncmax, ret;
- parent = nilfs_btree_get_node(btree, path, level + 1);
+ parent = nilfs_btree_get_node(btree, path, level + 1, &ncmax);
path[level].bp_oldreq.bpr_ptr =
- nilfs_btree_node_get_ptr(btree, parent,
- path[level + 1].bp_index);
+ nilfs_btree_node_get_ptr(parent, path[level + 1].bp_index,
+ ncmax);
path[level].bp_newreq.bpr_ptr = path[level].bp_oldreq.bpr_ptr + 1;
ret = nilfs_dat_prepare_update(dat, &path[level].bp_oldreq.bpr_req,
&path[level].bp_newreq.bpr_req);
@@ -1726,7 +1814,7 @@ static int nilfs_btree_prepare_update_v(struct nilfs_btree *btree,
path[level].bp_ctxt.newkey = path[level].bp_newreq.bpr_ptr;
path[level].bp_ctxt.bh = path[level].bp_bh;
ret = nilfs_btnode_prepare_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
if (ret < 0) {
nilfs_dat_abort_update(dat,
@@ -1739,30 +1827,31 @@ static int nilfs_btree_prepare_update_v(struct nilfs_btree *btree,
return 0;
}
-static void nilfs_btree_commit_update_v(struct nilfs_btree *btree,
+static void nilfs_btree_commit_update_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, struct inode *dat)
{
struct nilfs_btree_node *parent;
+ int ncmax;
nilfs_dat_commit_update(dat, &path[level].bp_oldreq.bpr_req,
&path[level].bp_newreq.bpr_req,
- btree->bt_bmap.b_ptr_type == NILFS_BMAP_PTR_VS);
+ btree->b_ptr_type == NILFS_BMAP_PTR_VS);
if (buffer_nilfs_node(path[level].bp_bh)) {
nilfs_btnode_commit_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
path[level].bp_bh = path[level].bp_ctxt.bh;
}
set_buffer_nilfs_volatile(path[level].bp_bh);
- parent = nilfs_btree_get_node(btree, path, level + 1);
- nilfs_btree_node_set_ptr(btree, parent, path[level + 1].bp_index,
- path[level].bp_newreq.bpr_ptr);
+ parent = nilfs_btree_get_node(btree, path, level + 1, &ncmax);
+ nilfs_btree_node_set_ptr(parent, path[level + 1].bp_index,
+ path[level].bp_newreq.bpr_ptr, ncmax);
}
-static void nilfs_btree_abort_update_v(struct nilfs_btree *btree,
+static void nilfs_btree_abort_update_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, struct inode *dat)
{
@@ -1770,11 +1859,11 @@ static void nilfs_btree_abort_update_v(struct nilfs_btree *btree,
&path[level].bp_newreq.bpr_req);
if (buffer_nilfs_node(path[level].bp_bh))
nilfs_btnode_abort_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
}
-static int nilfs_btree_prepare_propagate_v(struct nilfs_btree *btree,
+static int nilfs_btree_prepare_propagate_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int minlevel, int *maxlevelp,
struct inode *dat)
@@ -1809,7 +1898,7 @@ static int nilfs_btree_prepare_propagate_v(struct nilfs_btree *btree,
return ret;
}
-static void nilfs_btree_commit_propagate_v(struct nilfs_btree *btree,
+static void nilfs_btree_commit_propagate_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int minlevel, int maxlevel,
struct buffer_head *bh,
@@ -1824,14 +1913,15 @@ static void nilfs_btree_commit_propagate_v(struct nilfs_btree *btree,
nilfs_btree_commit_update_v(btree, path, level, dat);
}
-static int nilfs_btree_propagate_v(struct nilfs_btree *btree,
+static int nilfs_btree_propagate_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, struct buffer_head *bh)
{
int maxlevel = 0, ret;
struct nilfs_btree_node *parent;
- struct inode *dat = nilfs_bmap_get_dat(&btree->bt_bmap);
+ struct inode *dat = nilfs_bmap_get_dat(btree);
__u64 ptr;
+ int ncmax;
get_bh(bh);
path[level].bp_bh = bh;
@@ -1841,9 +1931,10 @@ static int nilfs_btree_propagate_v(struct nilfs_btree *btree,
goto out;
if (buffer_nilfs_volatile(path[level].bp_bh)) {
- parent = nilfs_btree_get_node(btree, path, level + 1);
- ptr = nilfs_btree_node_get_ptr(btree, parent,
- path[level + 1].bp_index);
+ parent = nilfs_btree_get_node(btree, path, level + 1, &ncmax);
+ ptr = nilfs_btree_node_get_ptr(parent,
+ path[level + 1].bp_index,
+ ncmax);
ret = nilfs_dat_mark_dirty(dat, ptr);
if (ret < 0)
goto out;
@@ -1857,10 +1948,9 @@ static int nilfs_btree_propagate_v(struct nilfs_btree *btree,
return ret;
}
-static int nilfs_btree_propagate(const struct nilfs_bmap *bmap,
+static int nilfs_btree_propagate(struct nilfs_bmap *btree,
struct buffer_head *bh)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
struct nilfs_btree_node *node;
__u64 key;
@@ -1868,7 +1958,6 @@ static int nilfs_btree_propagate(const struct nilfs_bmap *bmap,
WARN_ON(!buffer_dirty(bh));
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -1878,11 +1967,11 @@ static int nilfs_btree_propagate(const struct nilfs_bmap *bmap,
key = nilfs_btree_node_get_key(node, 0);
level = nilfs_btree_node_get_level(node);
} else {
- key = nilfs_bmap_data_get_key(bmap, bh);
+ key = nilfs_bmap_data_get_key(btree, bh);
level = NILFS_BTREE_LEVEL_DATA;
}
- ret = nilfs_btree_do_lookup(btree, path, key, NULL, level + 1);
+ ret = nilfs_btree_do_lookup(btree, path, key, NULL, level + 1, 0);
if (ret < 0) {
if (unlikely(ret == -ENOENT))
printk(KERN_CRIT "%s: key = %llu, level == %d\n",
@@ -1890,7 +1979,7 @@ static int nilfs_btree_propagate(const struct nilfs_bmap *bmap,
goto out;
}
- ret = NILFS_BMAP_USE_VBN(bmap) ?
+ ret = NILFS_BMAP_USE_VBN(btree) ?
nilfs_btree_propagate_v(btree, path, level, bh) :
nilfs_btree_propagate_p(btree, path, level, bh);
@@ -1900,13 +1989,13 @@ static int nilfs_btree_propagate(const struct nilfs_bmap *bmap,
return ret;
}
-static int nilfs_btree_propagate_gc(const struct nilfs_bmap *bmap,
+static int nilfs_btree_propagate_gc(struct nilfs_bmap *btree,
struct buffer_head *bh)
{
- return nilfs_dat_mark_dirty(nilfs_bmap_get_dat(bmap), bh->b_blocknr);
+ return nilfs_dat_mark_dirty(nilfs_bmap_get_dat(btree), bh->b_blocknr);
}
-static void nilfs_btree_add_dirty_buffer(struct nilfs_btree *btree,
+static void nilfs_btree_add_dirty_buffer(struct nilfs_bmap *btree,
struct list_head *lists,
struct buffer_head *bh)
{
@@ -1920,6 +2009,18 @@ static void nilfs_btree_add_dirty_buffer(struct nilfs_btree *btree,
node = (struct nilfs_btree_node *)bh->b_data;
key = nilfs_btree_node_get_key(node, 0);
level = nilfs_btree_node_get_level(node);
+ if (level < NILFS_BTREE_LEVEL_NODE_MIN ||
+ level >= NILFS_BTREE_LEVEL_MAX) {
+ dump_stack();
+ printk(KERN_WARNING
+ "%s: invalid btree level: %d (key=%llu, ino=%lu, "
+ "blocknr=%llu)\n",
+ __func__, level, (unsigned long long)key,
+ NILFS_BMAP_I(btree)->vfs_inode.i_ino,
+ (unsigned long long)bh->b_blocknr);
+ return;
+ }
+
list_for_each(head, &lists[level]) {
cbh = list_entry(head, struct buffer_head, b_assoc_buffers);
cnode = (struct nilfs_btree_node *)cbh->b_data;
@@ -1930,11 +2031,10 @@ static void nilfs_btree_add_dirty_buffer(struct nilfs_btree *btree,
list_add_tail(&bh->b_assoc_buffers, head);
}
-static void nilfs_btree_lookup_dirty_buffers(struct nilfs_bmap *bmap,
+static void nilfs_btree_lookup_dirty_buffers(struct nilfs_bmap *btree,
struct list_head *listp)
{
- struct nilfs_btree *btree = (struct nilfs_btree *)bmap;
- struct address_space *btcache = &NILFS_BMAP_I(bmap)->i_btnode_cache;
+ struct address_space *btcache = &NILFS_BMAP_I(btree)->i_btnode_cache;
struct list_head lists[NILFS_BTREE_LEVEL_MAX];
struct pagevec pvec;
struct buffer_head *bh, *head;
@@ -1968,7 +2068,7 @@ static void nilfs_btree_lookup_dirty_buffers(struct nilfs_bmap *bmap,
list_splice_tail(&lists[level], listp);
}
-static int nilfs_btree_assign_p(struct nilfs_btree *btree,
+static int nilfs_btree_assign_p(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level,
struct buffer_head **bh,
@@ -1978,38 +2078,38 @@ static int nilfs_btree_assign_p(struct nilfs_btree *btree,
struct nilfs_btree_node *parent;
__u64 key;
__u64 ptr;
- int ret;
+ int ncmax, ret;
- parent = nilfs_btree_get_node(btree, path, level + 1);
- ptr = nilfs_btree_node_get_ptr(btree, parent,
- path[level + 1].bp_index);
+ parent = nilfs_btree_get_node(btree, path, level + 1, &ncmax);
+ ptr = nilfs_btree_node_get_ptr(parent, path[level + 1].bp_index,
+ ncmax);
if (buffer_nilfs_node(*bh)) {
path[level].bp_ctxt.oldkey = ptr;
path[level].bp_ctxt.newkey = blocknr;
path[level].bp_ctxt.bh = *bh;
ret = nilfs_btnode_prepare_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
if (ret < 0)
return ret;
nilfs_btnode_commit_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
*bh = path[level].bp_ctxt.bh;
}
- nilfs_btree_node_set_ptr(btree, parent,
- path[level + 1].bp_index, blocknr);
+ nilfs_btree_node_set_ptr(parent, path[level + 1].bp_index, blocknr,
+ ncmax);
key = nilfs_btree_node_get_key(parent, path[level + 1].bp_index);
/* on-disk format */
- binfo->bi_dat.bi_blkoff = nilfs_bmap_key_to_dkey(key);
+ binfo->bi_dat.bi_blkoff = cpu_to_le64(key);
binfo->bi_dat.bi_level = level;
return 0;
}
-static int nilfs_btree_assign_v(struct nilfs_btree *btree,
+static int nilfs_btree_assign_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level,
struct buffer_head **bh,
@@ -2017,15 +2117,15 @@ static int nilfs_btree_assign_v(struct nilfs_btree *btree,
union nilfs_binfo *binfo)
{
struct nilfs_btree_node *parent;
- struct inode *dat = nilfs_bmap_get_dat(&btree->bt_bmap);
+ struct inode *dat = nilfs_bmap_get_dat(btree);
__u64 key;
__u64 ptr;
union nilfs_bmap_ptr_req req;
- int ret;
+ int ncmax, ret;
- parent = nilfs_btree_get_node(btree, path, level + 1);
- ptr = nilfs_btree_node_get_ptr(btree, parent,
- path[level + 1].bp_index);
+ parent = nilfs_btree_get_node(btree, path, level + 1, &ncmax);
+ ptr = nilfs_btree_node_get_ptr(parent, path[level + 1].bp_index,
+ ncmax);
req.bpr_ptr = ptr;
ret = nilfs_dat_prepare_start(dat, &req.bpr_req);
if (ret < 0)
@@ -2034,24 +2134,22 @@ static int nilfs_btree_assign_v(struct nilfs_btree *btree,
key = nilfs_btree_node_get_key(parent, path[level + 1].bp_index);
/* on-disk format */
- binfo->bi_v.bi_vblocknr = nilfs_bmap_ptr_to_dptr(ptr);
- binfo->bi_v.bi_blkoff = nilfs_bmap_key_to_dkey(key);
+ binfo->bi_v.bi_vblocknr = cpu_to_le64(ptr);
+ binfo->bi_v.bi_blkoff = cpu_to_le64(key);
return 0;
}
-static int nilfs_btree_assign(struct nilfs_bmap *bmap,
+static int nilfs_btree_assign(struct nilfs_bmap *btree,
struct buffer_head **bh,
sector_t blocknr,
union nilfs_binfo *binfo)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
struct nilfs_btree_node *node;
__u64 key;
int level, ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -2061,17 +2159,17 @@ static int nilfs_btree_assign(struct nilfs_bmap *bmap,
key = nilfs_btree_node_get_key(node, 0);
level = nilfs_btree_node_get_level(node);
} else {
- key = nilfs_bmap_data_get_key(bmap, *bh);
+ key = nilfs_bmap_data_get_key(btree, *bh);
level = NILFS_BTREE_LEVEL_DATA;
}
- ret = nilfs_btree_do_lookup(btree, path, key, NULL, level + 1);
+ ret = nilfs_btree_do_lookup(btree, path, key, NULL, level + 1, 0);
if (ret < 0) {
WARN_ON(ret == -ENOENT);
goto out;
}
- ret = NILFS_BMAP_USE_VBN(bmap) ?
+ ret = NILFS_BMAP_USE_VBN(btree) ?
nilfs_btree_assign_v(btree, path, level, bh, blocknr, binfo) :
nilfs_btree_assign_p(btree, path, level, bh, blocknr, binfo);
@@ -2081,7 +2179,7 @@ static int nilfs_btree_assign(struct nilfs_bmap *bmap,
return ret;
}
-static int nilfs_btree_assign_gc(struct nilfs_bmap *bmap,
+static int nilfs_btree_assign_gc(struct nilfs_bmap *btree,
struct buffer_head **bh,
sector_t blocknr,
union nilfs_binfo *binfo)
@@ -2090,7 +2188,7 @@ static int nilfs_btree_assign_gc(struct nilfs_bmap *bmap,
__u64 key;
int ret;
- ret = nilfs_dat_move(nilfs_bmap_get_dat(bmap), (*bh)->b_blocknr,
+ ret = nilfs_dat_move(nilfs_bmap_get_dat(btree), (*bh)->b_blocknr,
blocknr);
if (ret < 0)
return ret;
@@ -2099,29 +2197,27 @@ static int nilfs_btree_assign_gc(struct nilfs_bmap *bmap,
node = (struct nilfs_btree_node *)(*bh)->b_data;
key = nilfs_btree_node_get_key(node, 0);
} else
- key = nilfs_bmap_data_get_key(bmap, *bh);
+ key = nilfs_bmap_data_get_key(btree, *bh);
/* on-disk format */
binfo->bi_v.bi_vblocknr = cpu_to_le64((*bh)->b_blocknr);
- binfo->bi_v.bi_blkoff = nilfs_bmap_key_to_dkey(key);
+ binfo->bi_v.bi_blkoff = cpu_to_le64(key);
return 0;
}
-static int nilfs_btree_mark(struct nilfs_bmap *bmap, __u64 key, int level)
+static int nilfs_btree_mark(struct nilfs_bmap *btree, __u64 key, int level)
{
struct buffer_head *bh;
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
__u64 ptr;
int ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
- ret = nilfs_btree_do_lookup(btree, path, key, &ptr, level + 1);
+ ret = nilfs_btree_do_lookup(btree, path, key, &ptr, level + 1, 0);
if (ret < 0) {
WARN_ON(ret == -ENOENT);
goto out;
@@ -2135,8 +2231,8 @@ static int nilfs_btree_mark(struct nilfs_bmap *bmap, __u64 key, int level)
if (!buffer_dirty(bh))
nilfs_btnode_mark_dirty(bh);
brelse(bh);
- if (!nilfs_bmap_dirty(&btree->bt_bmap))
- nilfs_bmap_set_dirty(&btree->bt_bmap);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
out:
nilfs_btree_free_path(path);
@@ -2186,10 +2282,14 @@ static const struct nilfs_bmap_operations nilfs_btree_ops_gc = {
int nilfs_btree_init(struct nilfs_bmap *bmap)
{
bmap->b_ops = &nilfs_btree_ops;
+ bmap->b_nchildren_per_block =
+ NILFS_BTREE_NODE_NCHILDREN_MAX(nilfs_btree_node_size(bmap));
return 0;
}
void nilfs_btree_init_gc(struct nilfs_bmap *bmap)
{
bmap->b_ops = &nilfs_btree_ops_gc;
+ bmap->b_nchildren_per_block =
+ NILFS_BTREE_NODE_NCHILDREN_MAX(nilfs_btree_node_size(bmap));
}
diff --git a/fs/nilfs2/btree.h b/fs/nilfs2/btree.h
index 43c8c5b..22c02e3 100644
--- a/fs/nilfs2/btree.h
+++ b/fs/nilfs2/btree.h
@@ -31,14 +31,6 @@
#include "bmap.h"
/**
- * struct nilfs_btree - B-tree structure
- * @bt_bmap: bmap base structure
- */
-struct nilfs_btree {
- struct nilfs_bmap bt_bmap;
-};
-
-/**
* struct nilfs_btree_path - A path on which B-tree operations are executed
* @bp_bh: buffer head of node block
* @bp_sib_bh: buffer head of sibling node block
@@ -54,7 +46,7 @@ struct nilfs_btree_path {
union nilfs_bmap_ptr_req bp_oldreq;
union nilfs_bmap_ptr_req bp_newreq;
struct nilfs_btnode_chkey_ctxt bp_ctxt;
- void (*bp_op)(struct nilfs_btree *, struct nilfs_btree_path *,
+ void (*bp_op)(struct nilfs_bmap *, struct nilfs_btree_path *,
int, __u64 *, __u64 *);
};
@@ -80,4 +72,6 @@ int nilfs_btree_convert_and_insert(struct nilfs_bmap *, __u64, __u64,
const __u64 *, const __u64 *, int);
void nilfs_btree_init_gc(struct nilfs_bmap *);
+int nilfs_btree_broken_node_block(struct buffer_head *bh);
+
#endif /* _NILFS_BTREE_H */
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 85c89df..b60277b 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -141,7 +141,7 @@ static void nilfs_check_page(struct page *page)
}
for (offs = 0; offs <= limit - NILFS_DIR_REC_LEN(1); offs += rec_len) {
p = (struct nilfs_dir_entry *)(kaddr + offs);
- rec_len = le16_to_cpu(p->rec_len);
+ rec_len = nilfs_rec_len_from_disk(p->rec_len);
if (rec_len < NILFS_DIR_REC_LEN(1))
goto Eshort;
@@ -199,13 +199,10 @@ fail:
static struct page *nilfs_get_page(struct inode *dir, unsigned long n)
{
struct address_space *mapping = dir->i_mapping;
- struct page *page = read_cache_page(mapping, n,
- (filler_t *)mapping->a_ops->readpage, NULL);
+ struct page *page = read_mapping_page(mapping, n, NULL);
+
if (!IS_ERR(page)) {
- wait_on_page_locked(page);
kmap(page);
- if (!PageUptodate(page))
- goto fail;
if (!PageChecked(page))
nilfs_check_page(page);
if (PageError(page))
@@ -238,7 +235,8 @@ nilfs_match(int len, const unsigned char *name, struct nilfs_dir_entry *de)
*/
static struct nilfs_dir_entry *nilfs_next_entry(struct nilfs_dir_entry *p)
{
- return (struct nilfs_dir_entry *)((char *)p + le16_to_cpu(p->rec_len));
+ return (struct nilfs_dir_entry *)((char *)p +
+ nilfs_rec_len_from_disk(p->rec_len));
}
static unsigned char
@@ -329,7 +327,7 @@ static int nilfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
goto success;
}
}
- filp->f_pos += le16_to_cpu(de->rec_len);
+ filp->f_pos += nilfs_rec_len_from_disk(de->rec_len);
}
nilfs_put_page(page);
}
@@ -444,7 +442,7 @@ void nilfs_set_link(struct inode *dir, struct nilfs_dir_entry *de,
struct page *page, struct inode *inode)
{
unsigned from = (char *) de - (char *) page_address(page);
- unsigned to = from + le16_to_cpu(de->rec_len);
+ unsigned to = from + nilfs_rec_len_from_disk(de->rec_len);
struct address_space *mapping = page->mapping;
int err;
@@ -500,7 +498,7 @@ int nilfs_add_link(struct dentry *dentry, struct inode *inode)
/* We hit i_size */
name_len = 0;
rec_len = chunk_size;
- de->rec_len = cpu_to_le16(chunk_size);
+ de->rec_len = nilfs_rec_len_to_disk(chunk_size);
de->inode = 0;
goto got_it;
}
@@ -514,7 +512,7 @@ int nilfs_add_link(struct dentry *dentry, struct inode *inode)
if (nilfs_match(namelen, name, de))
goto out_unlock;
name_len = NILFS_DIR_REC_LEN(de->name_len);
- rec_len = le16_to_cpu(de->rec_len);
+ rec_len = nilfs_rec_len_from_disk(de->rec_len);
if (!de->inode && rec_len >= reclen)
goto got_it;
if (rec_len >= name_len + reclen)
@@ -537,8 +535,8 @@ got_it:
struct nilfs_dir_entry *de1;
de1 = (struct nilfs_dir_entry *)((char *)de + name_len);
- de1->rec_len = cpu_to_le16(rec_len - name_len);
- de->rec_len = cpu_to_le16(name_len);
+ de1->rec_len = nilfs_rec_len_to_disk(rec_len - name_len);
+ de->rec_len = nilfs_rec_len_to_disk(name_len);
de = de1;
}
de->name_len = namelen;
@@ -569,7 +567,8 @@ int nilfs_delete_entry(struct nilfs_dir_entry *dir, struct page *page)
struct inode *inode = mapping->host;
char *kaddr = page_address(page);
unsigned from = ((char *)dir - kaddr) & ~(nilfs_chunk_size(inode) - 1);
- unsigned to = ((char *)dir - kaddr) + le16_to_cpu(dir->rec_len);
+ unsigned to = ((char *)dir - kaddr) +
+ nilfs_rec_len_from_disk(dir->rec_len);
struct nilfs_dir_entry *pde = NULL;
struct nilfs_dir_entry *de = (struct nilfs_dir_entry *)(kaddr + from);
int err;
@@ -590,7 +589,7 @@ int nilfs_delete_entry(struct nilfs_dir_entry *dir, struct page *page)
err = nilfs_prepare_chunk(page, mapping, from, to);
BUG_ON(err);
if (pde)
- pde->rec_len = cpu_to_le16(to - from);
+ pde->rec_len = nilfs_rec_len_to_disk(to - from);
dir->inode = 0;
nilfs_commit_chunk(page, mapping, from, to);
inode->i_ctime = inode->i_mtime = CURRENT_TIME;
@@ -624,14 +623,14 @@ int nilfs_make_empty(struct inode *inode, struct inode *parent)
memset(kaddr, 0, chunk_size);
de = (struct nilfs_dir_entry *)kaddr;
de->name_len = 1;
- de->rec_len = cpu_to_le16(NILFS_DIR_REC_LEN(1));
+ de->rec_len = nilfs_rec_len_to_disk(NILFS_DIR_REC_LEN(1));
memcpy(de->name, ".\0\0", 4);
de->inode = cpu_to_le64(inode->i_ino);
nilfs_set_de_type(de, inode);
de = (struct nilfs_dir_entry *)(kaddr + NILFS_DIR_REC_LEN(1));
de->name_len = 2;
- de->rec_len = cpu_to_le16(chunk_size - NILFS_DIR_REC_LEN(1));
+ de->rec_len = nilfs_rec_len_to_disk(chunk_size - NILFS_DIR_REC_LEN(1));
de->inode = cpu_to_le64(parent->i_ino);
memcpy(de->name, "..\0", 4);
nilfs_set_de_type(de, inode);
diff --git a/fs/nilfs2/direct.c b/fs/nilfs2/direct.c
index 236753d..324d80c 100644
--- a/fs/nilfs2/direct.c
+++ b/fs/nilfs2/direct.c
@@ -27,47 +27,43 @@
#include "alloc.h"
#include "dat.h"
-static inline __le64 *nilfs_direct_dptrs(const struct nilfs_direct *direct)
+static inline __le64 *nilfs_direct_dptrs(const struct nilfs_bmap *direct)
{
return (__le64 *)
- ((struct nilfs_direct_node *)direct->d_bmap.b_u.u_data + 1);
+ ((struct nilfs_direct_node *)direct->b_u.u_data + 1);
}
static inline __u64
-nilfs_direct_get_ptr(const struct nilfs_direct *direct, __u64 key)
+nilfs_direct_get_ptr(const struct nilfs_bmap *direct, __u64 key)
{
- return nilfs_bmap_dptr_to_ptr(*(nilfs_direct_dptrs(direct) + key));
+ return le64_to_cpu(*(nilfs_direct_dptrs(direct) + key));
}
-static inline void nilfs_direct_set_ptr(struct nilfs_direct *direct,
+static inline void nilfs_direct_set_ptr(struct nilfs_bmap *direct,
__u64 key, __u64 ptr)
{
- *(nilfs_direct_dptrs(direct) + key) = nilfs_bmap_ptr_to_dptr(ptr);
+ *(nilfs_direct_dptrs(direct) + key) = cpu_to_le64(ptr);
}
-static int nilfs_direct_lookup(const struct nilfs_bmap *bmap,
+static int nilfs_direct_lookup(const struct nilfs_bmap *direct,
__u64 key, int level, __u64 *ptrp)
{
- struct nilfs_direct *direct;
__u64 ptr;
- direct = (struct nilfs_direct *)bmap; /* XXX: use macro for level 1 */
if (key > NILFS_DIRECT_KEY_MAX || level != 1)
return -ENOENT;
ptr = nilfs_direct_get_ptr(direct, key);
if (ptr == NILFS_BMAP_INVALID_PTR)
return -ENOENT;
- if (ptrp != NULL)
- *ptrp = ptr;
+ *ptrp = ptr;
return 0;
}
-static int nilfs_direct_lookup_contig(const struct nilfs_bmap *bmap,
+static int nilfs_direct_lookup_contig(const struct nilfs_bmap *direct,
__u64 key, __u64 *ptrp,
unsigned maxblocks)
{
- struct nilfs_direct *direct = (struct nilfs_direct *)bmap;
struct inode *dat = NULL;
__u64 ptr, ptr2;
sector_t blocknr;
@@ -79,8 +75,8 @@ static int nilfs_direct_lookup_contig(const struct nilfs_bmap *bmap,
if (ptr == NILFS_BMAP_INVALID_PTR)
return -ENOENT;
- if (NILFS_BMAP_USE_VBN(bmap)) {
- dat = nilfs_bmap_get_dat(bmap);
+ if (NILFS_BMAP_USE_VBN(direct)) {
+ dat = nilfs_bmap_get_dat(direct);
ret = nilfs_dat_translate(dat, ptr, &blocknr);
if (ret < 0)
return ret;
@@ -106,29 +102,21 @@ static int nilfs_direct_lookup_contig(const struct nilfs_bmap *bmap,
}
static __u64
-nilfs_direct_find_target_v(const struct nilfs_direct *direct, __u64 key)
+nilfs_direct_find_target_v(const struct nilfs_bmap *direct, __u64 key)
{
__u64 ptr;
- ptr = nilfs_bmap_find_target_seq(&direct->d_bmap, key);
+ ptr = nilfs_bmap_find_target_seq(direct, key);
if (ptr != NILFS_BMAP_INVALID_PTR)
/* sequential access */
return ptr;
else
/* block group */
- return nilfs_bmap_find_target_in_group(&direct->d_bmap);
-}
-
-static void nilfs_direct_set_target_v(struct nilfs_direct *direct,
- __u64 key, __u64 ptr)
-{
- direct->d_bmap.b_last_allocated_key = key;
- direct->d_bmap.b_last_allocated_ptr = ptr;
+ return nilfs_bmap_find_target_in_group(direct);
}
static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
{
- struct nilfs_direct *direct = (struct nilfs_direct *)bmap;
union nilfs_bmap_ptr_req req;
struct inode *dat = NULL;
struct buffer_head *bh;
@@ -136,11 +124,11 @@ static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
if (key > NILFS_DIRECT_KEY_MAX)
return -ENOENT;
- if (nilfs_direct_get_ptr(direct, key) != NILFS_BMAP_INVALID_PTR)
+ if (nilfs_direct_get_ptr(bmap, key) != NILFS_BMAP_INVALID_PTR)
return -EEXIST;
if (NILFS_BMAP_USE_VBN(bmap)) {
- req.bpr_ptr = nilfs_direct_find_target_v(direct, key);
+ req.bpr_ptr = nilfs_direct_find_target_v(bmap, key);
dat = nilfs_bmap_get_dat(bmap);
}
ret = nilfs_bmap_prepare_alloc_ptr(bmap, &req, dat);
@@ -150,13 +138,13 @@ static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
set_buffer_nilfs_volatile(bh);
nilfs_bmap_commit_alloc_ptr(bmap, &req, dat);
- nilfs_direct_set_ptr(direct, key, req.bpr_ptr);
+ nilfs_direct_set_ptr(bmap, key, req.bpr_ptr);
if (!nilfs_bmap_dirty(bmap))
nilfs_bmap_set_dirty(bmap);
if (NILFS_BMAP_USE_VBN(bmap))
- nilfs_direct_set_target_v(direct, key, req.bpr_ptr);
+ nilfs_bmap_set_target_v(bmap, key, req.bpr_ptr);
nilfs_bmap_add_blocks(bmap, 1);
}
@@ -165,33 +153,30 @@ static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
static int nilfs_direct_delete(struct nilfs_bmap *bmap, __u64 key)
{
- struct nilfs_direct *direct = (struct nilfs_direct *)bmap;
union nilfs_bmap_ptr_req req;
struct inode *dat;
int ret;
if (key > NILFS_DIRECT_KEY_MAX ||
- nilfs_direct_get_ptr(direct, key) == NILFS_BMAP_INVALID_PTR)
+ nilfs_direct_get_ptr(bmap, key) == NILFS_BMAP_INVALID_PTR)
return -ENOENT;
dat = NILFS_BMAP_USE_VBN(bmap) ? nilfs_bmap_get_dat(bmap) : NULL;
- req.bpr_ptr = nilfs_direct_get_ptr(direct, key);
+ req.bpr_ptr = nilfs_direct_get_ptr(bmap, key);
ret = nilfs_bmap_prepare_end_ptr(bmap, &req, dat);
if (!ret) {
nilfs_bmap_commit_end_ptr(bmap, &req, dat);
- nilfs_direct_set_ptr(direct, key, NILFS_BMAP_INVALID_PTR);
+ nilfs_direct_set_ptr(bmap, key, NILFS_BMAP_INVALID_PTR);
nilfs_bmap_sub_blocks(bmap, 1);
}
return ret;
}
-static int nilfs_direct_last_key(const struct nilfs_bmap *bmap, __u64 *keyp)
+static int nilfs_direct_last_key(const struct nilfs_bmap *direct, __u64 *keyp)
{
- struct nilfs_direct *direct;
__u64 key, lastkey;
- direct = (struct nilfs_direct *)bmap;
lastkey = NILFS_DIRECT_KEY_MAX + 1;
for (key = NILFS_DIRECT_KEY_MIN; key <= NILFS_DIRECT_KEY_MAX; key++)
if (nilfs_direct_get_ptr(direct, key) !=
@@ -211,15 +196,13 @@ static int nilfs_direct_check_insert(const struct nilfs_bmap *bmap, __u64 key)
return key > NILFS_DIRECT_KEY_MAX;
}
-static int nilfs_direct_gather_data(struct nilfs_bmap *bmap,
+static int nilfs_direct_gather_data(struct nilfs_bmap *direct,
__u64 *keys, __u64 *ptrs, int nitems)
{
- struct nilfs_direct *direct;
__u64 key;
__u64 ptr;
int n;
- direct = (struct nilfs_direct *)bmap;
if (nitems > NILFS_DIRECT_NBLOCKS)
nitems = NILFS_DIRECT_NBLOCKS;
n = 0;
@@ -237,7 +220,6 @@ static int nilfs_direct_gather_data(struct nilfs_bmap *bmap,
int nilfs_direct_delete_and_convert(struct nilfs_bmap *bmap,
__u64 key, __u64 *keys, __u64 *ptrs, int n)
{
- struct nilfs_direct *direct;
__le64 *dptrs;
int ret, i, j;
@@ -253,12 +235,11 @@ int nilfs_direct_delete_and_convert(struct nilfs_bmap *bmap,
bmap->b_ops->bop_clear(bmap);
/* convert */
- direct = (struct nilfs_direct *)bmap;
- dptrs = nilfs_direct_dptrs(direct);
+ dptrs = nilfs_direct_dptrs(bmap);
for (i = 0, j = 0; i < NILFS_DIRECT_NBLOCKS; i++) {
if ((j < n) && (i == keys[j])) {
dptrs[i] = (i != key) ?
- nilfs_bmap_ptr_to_dptr(ptrs[j]) :
+ cpu_to_le64(ptrs[j]) :
NILFS_BMAP_INVALID_PTR;
j++;
} else
@@ -269,10 +250,9 @@ int nilfs_direct_delete_and_convert(struct nilfs_bmap *bmap,
return 0;
}
-static int nilfs_direct_propagate(const struct nilfs_bmap *bmap,
+static int nilfs_direct_propagate(struct nilfs_bmap *bmap,
struct buffer_head *bh)
{
- struct nilfs_direct *direct = (struct nilfs_direct *)bmap;
struct nilfs_palloc_req oldreq, newreq;
struct inode *dat;
__u64 key;
@@ -284,7 +264,7 @@ static int nilfs_direct_propagate(const struct nilfs_bmap *bmap,
dat = nilfs_bmap_get_dat(bmap);
key = nilfs_bmap_data_get_key(bmap, bh);
- ptr = nilfs_direct_get_ptr(direct, key);
+ ptr = nilfs_direct_get_ptr(bmap, key);
if (!buffer_nilfs_volatile(bh)) {
oldreq.pr_entry_nr = ptr;
newreq.pr_entry_nr = ptr;
@@ -294,20 +274,20 @@ static int nilfs_direct_propagate(const struct nilfs_bmap *bmap,
nilfs_dat_commit_update(dat, &oldreq, &newreq,
bmap->b_ptr_type == NILFS_BMAP_PTR_VS);
set_buffer_nilfs_volatile(bh);
- nilfs_direct_set_ptr(direct, key, newreq.pr_entry_nr);
+ nilfs_direct_set_ptr(bmap, key, newreq.pr_entry_nr);
} else
ret = nilfs_dat_mark_dirty(dat, ptr);
return ret;
}
-static int nilfs_direct_assign_v(struct nilfs_direct *direct,
+static int nilfs_direct_assign_v(struct nilfs_bmap *direct,
__u64 key, __u64 ptr,
struct buffer_head **bh,
sector_t blocknr,
union nilfs_binfo *binfo)
{
- struct inode *dat = nilfs_bmap_get_dat(&direct->d_bmap);
+ struct inode *dat = nilfs_bmap_get_dat(direct);
union nilfs_bmap_ptr_req req;
int ret;
@@ -315,13 +295,13 @@ static int nilfs_direct_assign_v(struct nilfs_direct *direct,
ret = nilfs_dat_prepare_start(dat, &req.bpr_req);
if (!ret) {
nilfs_dat_commit_start(dat, &req.bpr_req, blocknr);
- binfo->bi_v.bi_vblocknr = nilfs_bmap_ptr_to_dptr(ptr);
- binfo->bi_v.bi_blkoff = nilfs_bmap_key_to_dkey(key);
+ binfo->bi_v.bi_vblocknr = cpu_to_le64(ptr);
+ binfo->bi_v.bi_blkoff = cpu_to_le64(key);
}
return ret;
}
-static int nilfs_direct_assign_p(struct nilfs_direct *direct,
+static int nilfs_direct_assign_p(struct nilfs_bmap *direct,
__u64 key, __u64 ptr,
struct buffer_head **bh,
sector_t blocknr,
@@ -329,7 +309,7 @@ static int nilfs_direct_assign_p(struct nilfs_direct *direct,
{
nilfs_direct_set_ptr(direct, key, blocknr);
- binfo->bi_dat.bi_blkoff = nilfs_bmap_key_to_dkey(key);
+ binfo->bi_dat.bi_blkoff = cpu_to_le64(key);
binfo->bi_dat.bi_level = 0;
return 0;
@@ -340,18 +320,16 @@ static int nilfs_direct_assign(struct nilfs_bmap *bmap,
sector_t blocknr,
union nilfs_binfo *binfo)
{
- struct nilfs_direct *direct;
__u64 key;
__u64 ptr;
- direct = (struct nilfs_direct *)bmap;
key = nilfs_bmap_data_get_key(bmap, *bh);
if (unlikely(key > NILFS_DIRECT_KEY_MAX)) {
printk(KERN_CRIT "%s: invalid key: %llu\n", __func__,
(unsigned long long)key);
return -EINVAL;
}
- ptr = nilfs_direct_get_ptr(direct, key);
+ ptr = nilfs_direct_get_ptr(bmap, key);
if (unlikely(ptr == NILFS_BMAP_INVALID_PTR)) {
printk(KERN_CRIT "%s: invalid pointer: %llu\n", __func__,
(unsigned long long)ptr);
@@ -359,8 +337,8 @@ static int nilfs_direct_assign(struct nilfs_bmap *bmap,
}
return NILFS_BMAP_USE_VBN(bmap) ?
- nilfs_direct_assign_v(direct, key, ptr, bh, blocknr, binfo) :
- nilfs_direct_assign_p(direct, key, ptr, bh, blocknr, binfo);
+ nilfs_direct_assign_v(bmap, key, ptr, bh, blocknr, binfo) :
+ nilfs_direct_assign_p(bmap, key, ptr, bh, blocknr, binfo);
}
static const struct nilfs_bmap_operations nilfs_direct_ops = {
diff --git a/fs/nilfs2/direct.h b/fs/nilfs2/direct.h
index a5ffd66..dc643de 100644
--- a/fs/nilfs2/direct.h
+++ b/fs/nilfs2/direct.h
@@ -28,8 +28,6 @@
#include "bmap.h"
-struct nilfs_direct;
-
/**
* struct nilfs_direct_node - direct node
* @dn_flags: flags
@@ -40,15 +38,6 @@ struct nilfs_direct_node {
__u8 pad[7];
};
-/**
- * struct nilfs_direct - direct mapping
- * @d_bmap: bmap structure
- */
-struct nilfs_direct {
- struct nilfs_bmap d_bmap;
-};
-
-
#define NILFS_DIRECT_NBLOCKS (NILFS_BMAP_SIZE / sizeof(__le64) - 1)
#define NILFS_DIRECT_KEY_MIN 0
#define NILFS_DIRECT_KEY_MAX (NILFS_DIRECT_NBLOCKS - 1)
diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index 145f03c..bed3a78 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -48,6 +48,8 @@
#include <linux/slab.h>
#include <linux/swap.h>
#include "nilfs.h"
+#include "btree.h"
+#include "btnode.h"
#include "page.h"
#include "mdt.h"
#include "dat.h"
@@ -149,8 +151,10 @@ int nilfs_gccache_submit_read_data(struct inode *inode, sector_t blkoff,
int nilfs_gccache_submit_read_node(struct inode *inode, sector_t pbn,
__u64 vbn, struct buffer_head **out_bh)
{
- int ret = nilfs_btnode_submit_block(&NILFS_I(inode)->i_btnode_cache,
- vbn ? : pbn, pbn, out_bh);
+ int ret;
+
+ ret = nilfs_btnode_submit_block(&NILFS_I(inode)->i_btnode_cache,
+ vbn ? : pbn, pbn, READ, out_bh, &pbn);
if (ret == -EEXIST) /* internal code (cache hit) */
ret = 0;
return ret;
@@ -164,10 +168,15 @@ int nilfs_gccache_wait_and_mark_dirty(struct buffer_head *bh)
if (buffer_dirty(bh))
return -EEXIST;
- if (buffer_nilfs_node(bh))
+ if (buffer_nilfs_node(bh)) {
+ if (nilfs_btree_broken_node_block(bh)) {
+ clear_buffer_uptodate(bh);
+ return -EIO;
+ }
nilfs_btnode_mark_dirty(bh);
- else
+ } else {
nilfs_mdt_mark_buffer_dirty(bh);
+ }
return 0;
}
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 024be8c..d01aff4 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -28,6 +28,7 @@
#include <linux/swap.h>
#include <linux/slab.h>
#include "nilfs.h"
+#include "btnode.h"
#include "segment.h"
#include "page.h"
#include "mdt.h"
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 47d6d79..0842d77 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -32,7 +32,6 @@
#include "the_nilfs.h"
#include "sb.h"
#include "bmap.h"
-#include "bmap_union.h"
/*
* nilfs inode data in memory
@@ -41,7 +40,7 @@ struct nilfs_inode_info {
__u32 i_flags;
unsigned long i_state; /* Dynamic state flags */
struct nilfs_bmap *i_bmap;
- union nilfs_bmap_union i_bmap_union;
+ struct nilfs_bmap i_bmap_data;
__u64 i_xattr; /* sector_t ??? */
__u32 i_dir_start_lookup;
__u64 i_cno; /* check point number for GC inode */
@@ -71,9 +70,7 @@ static inline struct nilfs_inode_info *NILFS_I(const struct inode *inode)
static inline struct nilfs_inode_info *
NILFS_BMAP_I(const struct nilfs_bmap *bmap)
{
- return container_of((union nilfs_bmap_union *)bmap,
- struct nilfs_inode_info,
- i_bmap_union);
+ return container_of(bmap, struct nilfs_inode_info, i_bmap_data);
}
static inline struct inode *NILFS_BTNC_I(struct address_space *btnc)
@@ -107,6 +104,14 @@ enum {
};
/*
+ * commit flags for nilfs_commit_super and nilfs_sync_super
+ */
+enum {
+ NILFS_SB_COMMIT = 0, /* Commit a super block alternately */
+ NILFS_SB_COMMIT_ALL /* Commit both super blocks */
+};
+
+/*
* Macros to check inode numbers
*/
#define NILFS_MDT_INO_BITS \
@@ -270,7 +275,14 @@ extern struct nilfs_super_block *
nilfs_read_super_block(struct super_block *, u64, int, struct buffer_head **);
extern int nilfs_store_magic_and_option(struct super_block *,
struct nilfs_super_block *, char *);
+extern int nilfs_check_feature_compatibility(struct super_block *,
+ struct nilfs_super_block *);
+extern void nilfs_set_log_cursor(struct nilfs_super_block *,
+ struct the_nilfs *);
+extern struct nilfs_super_block **nilfs_prepare_super(struct nilfs_sb_info *,
+ int flip);
extern int nilfs_commit_super(struct nilfs_sb_info *, int);
+extern int nilfs_cleanup_super(struct nilfs_sb_info *);
extern int nilfs_attach_checkpoint(struct nilfs_sb_info *, __u64);
extern void nilfs_detach_checkpoint(struct nilfs_sb_info *);
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 8de3e1e..aab11db 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -37,7 +37,8 @@
#define NILFS_BUFFER_INHERENT_BITS \
((1UL << BH_Uptodate) | (1UL << BH_Mapped) | (1UL << BH_NILFS_Node) | \
- (1UL << BH_NILFS_Volatile) | (1UL << BH_NILFS_Allocated))
+ (1UL << BH_NILFS_Volatile) | (1UL << BH_NILFS_Allocated) | \
+ (1UL << BH_NILFS_Checked))
static struct buffer_head *
__nilfs_get_page_block(struct page *page, unsigned long block, pgoff_t index,
@@ -129,6 +130,7 @@ void nilfs_forget_buffer(struct buffer_head *bh)
lock_buffer(bh);
clear_buffer_nilfs_volatile(bh);
+ clear_buffer_nilfs_checked(bh);
clear_buffer_dirty(bh);
if (nilfs_page_buffers_clean(page))
__nilfs_clear_page_dirty(page);
@@ -480,6 +482,7 @@ void nilfs_clear_dirty_pages(struct address_space *mapping)
lock_buffer(bh);
clear_buffer_dirty(bh);
clear_buffer_nilfs_volatile(bh);
+ clear_buffer_nilfs_checked(bh);
clear_buffer_uptodate(bh);
clear_buffer_mapped(bh);
unlock_buffer(bh);
diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h
index 8abca4d..f53d8da 100644
--- a/fs/nilfs2/page.h
+++ b/fs/nilfs2/page.h
@@ -34,11 +34,13 @@ enum {
BH_NILFS_Allocated = BH_PrivateStart,
BH_NILFS_Node,
BH_NILFS_Volatile,
+ BH_NILFS_Checked,
};
BUFFER_FNS(NILFS_Allocated, nilfs_allocated) /* nilfs private buffers */
BUFFER_FNS(NILFS_Node, nilfs_node) /* nilfs node buffers */
BUFFER_FNS(NILFS_Volatile, nilfs_volatile)
+BUFFER_FNS(NILFS_Checked, nilfs_checked) /* buffer is verified */
void nilfs_mark_buffer_dirty(struct buffer_head *bh);
diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index bae2a51..83e3d8c 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -91,27 +91,9 @@ static int nilfs_warn_segment_error(int err)
return -EINVAL;
}
-static void store_segsum_info(struct nilfs_segsum_info *ssi,
- struct nilfs_segment_summary *sum,
- unsigned int blocksize)
-{
- ssi->flags = le16_to_cpu(sum->ss_flags);
- ssi->seg_seq = le64_to_cpu(sum->ss_seq);
- ssi->ctime = le64_to_cpu(sum->ss_create);
- ssi->next = le64_to_cpu(sum->ss_next);
- ssi->nblocks = le32_to_cpu(sum->ss_nblocks);
- ssi->nfinfo = le32_to_cpu(sum->ss_nfinfo);
- ssi->sumbytes = le32_to_cpu(sum->ss_sumbytes);
-
- ssi->nsumblk = DIV_ROUND_UP(ssi->sumbytes, blocksize);
- ssi->nfileblk = ssi->nblocks - ssi->nsumblk - !!NILFS_SEG_HAS_SR(ssi);
-
- /* need to verify ->ss_bytes field if read ->ss_cno */
-}
-
/**
- * calc_crc_cont - check CRC of blocks continuously
- * @sbi: nilfs_sb_info
+ * nilfs_compute_checksum - compute checksum of blocks continuously
+ * @nilfs: nilfs object
* @bhs: buffer head of start block
* @sum: place to store result
* @offset: offset bytes in the first block
@@ -119,23 +101,25 @@ static void store_segsum_info(struct nilfs_segsum_info *ssi,
* @start: DBN of start block
* @nblock: number of blocks to be checked
*/
-static int calc_crc_cont(struct nilfs_sb_info *sbi, struct buffer_head *bhs,
- u32 *sum, unsigned long offset, u64 check_bytes,
- sector_t start, unsigned long nblock)
+static int nilfs_compute_checksum(struct the_nilfs *nilfs,
+ struct buffer_head *bhs, u32 *sum,
+ unsigned long offset, u64 check_bytes,
+ sector_t start, unsigned long nblock)
{
- unsigned long blocksize = sbi->s_super->s_blocksize;
+ unsigned int blocksize = nilfs->ns_blocksize;
unsigned long size;
u32 crc;
BUG_ON(offset >= blocksize);
check_bytes -= offset;
size = min_t(u64, check_bytes, blocksize - offset);
- crc = crc32_le(sbi->s_nilfs->ns_crc_seed,
+ crc = crc32_le(nilfs->ns_crc_seed,
(unsigned char *)bhs->b_data + offset, size);
if (--nblock > 0) {
do {
- struct buffer_head *bh
- = sb_bread(sbi->s_super, ++start);
+ struct buffer_head *bh;
+
+ bh = __bread(nilfs->ns_bdev, ++start, blocksize);
if (!bh)
return -EIO;
check_bytes -= size;
@@ -150,12 +134,12 @@ static int calc_crc_cont(struct nilfs_sb_info *sbi, struct buffer_head *bhs,
/**
* nilfs_read_super_root_block - read super root block
- * @sb: super_block
+ * @nilfs: nilfs object
* @sr_block: disk block number of the super root block
* @pbh: address of a buffer_head pointer to return super root buffer
* @check: CRC check flag
*/
-int nilfs_read_super_root_block(struct super_block *sb, sector_t sr_block,
+int nilfs_read_super_root_block(struct the_nilfs *nilfs, sector_t sr_block,
struct buffer_head **pbh, int check)
{
struct buffer_head *bh_sr;
@@ -164,7 +148,7 @@ int nilfs_read_super_root_block(struct super_block *sb, sector_t sr_block,
int ret;
*pbh = NULL;
- bh_sr = sb_bread(sb, sr_block);
+ bh_sr = __bread(nilfs->ns_bdev, sr_block, nilfs->ns_blocksize);
if (unlikely(!bh_sr)) {
ret = NILFS_SEG_FAIL_IO;
goto failed;
@@ -174,12 +158,13 @@ int nilfs_read_super_root_block(struct super_block *sb, sector_t sr_block,
if (check) {
unsigned bytes = le16_to_cpu(sr->sr_bytes);
- if (bytes == 0 || bytes > sb->s_blocksize) {
+ if (bytes == 0 || bytes > nilfs->ns_blocksize) {
ret = NILFS_SEG_FAIL_CHECKSUM_SUPER_ROOT;
goto failed_bh;
}
- if (calc_crc_cont(NILFS_SB(sb), bh_sr, &crc,
- sizeof(sr->sr_sum), bytes, sr_block, 1)) {
+ if (nilfs_compute_checksum(
+ nilfs, bh_sr, &crc, sizeof(sr->sr_sum), bytes,
+ sr_block, 1)) {
ret = NILFS_SEG_FAIL_IO;
goto failed_bh;
}
@@ -199,64 +184,76 @@ int nilfs_read_super_root_block(struct super_block *sb, sector_t sr_block,
}
/**
- * load_segment_summary - read segment summary of the specified partial segment
- * @sbi: nilfs_sb_info
- * @pseg_start: start disk block number of partial segment
- * @seg_seq: sequence number requested
- * @ssi: pointer to nilfs_segsum_info struct to store information
+ * nilfs_read_log_header - read summary header of the specified log
+ * @nilfs: nilfs object
+ * @start_blocknr: start block number of the log
+ * @sum: pointer to return segment summary structure
*/
-static int
-load_segment_summary(struct nilfs_sb_info *sbi, sector_t pseg_start,
- u64 seg_seq, struct nilfs_segsum_info *ssi)
+static struct buffer_head *
+nilfs_read_log_header(struct the_nilfs *nilfs, sector_t start_blocknr,
+ struct nilfs_segment_summary **sum)
{
struct buffer_head *bh_sum;
- struct nilfs_segment_summary *sum;
+
+ bh_sum = __bread(nilfs->ns_bdev, start_blocknr, nilfs->ns_blocksize);
+ if (bh_sum)
+ *sum = (struct nilfs_segment_summary *)bh_sum->b_data;
+ return bh_sum;
+}
+
+/**
+ * nilfs_validate_log - verify consistency of log
+ * @nilfs: nilfs object
+ * @seg_seq: sequence number of segment
+ * @bh_sum: buffer head of summary block
+ * @sum: segment summary struct
+ */
+static int nilfs_validate_log(struct the_nilfs *nilfs, u64 seg_seq,
+ struct buffer_head *bh_sum,
+ struct nilfs_segment_summary *sum)
+{
unsigned long nblock;
u32 crc;
- int ret = NILFS_SEG_FAIL_IO;
+ int ret;
- bh_sum = sb_bread(sbi->s_super, pseg_start);
- if (!bh_sum)
+ ret = NILFS_SEG_FAIL_MAGIC;
+ if (le32_to_cpu(sum->ss_magic) != NILFS_SEGSUM_MAGIC)
goto out;
- sum = (struct nilfs_segment_summary *)bh_sum->b_data;
-
- /* Check consistency of segment summary */
- if (le32_to_cpu(sum->ss_magic) != NILFS_SEGSUM_MAGIC) {
- ret = NILFS_SEG_FAIL_MAGIC;
- goto failed;
- }
- store_segsum_info(ssi, sum, sbi->s_super->s_blocksize);
- if (seg_seq != ssi->seg_seq) {
- ret = NILFS_SEG_FAIL_SEQ;
- goto failed;
- }
+ ret = NILFS_SEG_FAIL_SEQ;
+ if (le64_to_cpu(sum->ss_seq) != seg_seq)
+ goto out;
- nblock = ssi->nblocks;
- if (unlikely(nblock == 0 ||
- nblock > sbi->s_nilfs->ns_blocks_per_segment)) {
+ nblock = le32_to_cpu(sum->ss_nblocks);
+ ret = NILFS_SEG_FAIL_CONSISTENCY;
+ if (unlikely(nblock == 0 || nblock > nilfs->ns_blocks_per_segment))
/* This limits the number of blocks read in the CRC check */
- ret = NILFS_SEG_FAIL_CONSISTENCY;
- goto failed;
- }
- if (calc_crc_cont(sbi, bh_sum, &crc, sizeof(sum->ss_datasum),
- ((u64)nblock << sbi->s_super->s_blocksize_bits),
- pseg_start, nblock)) {
- ret = NILFS_SEG_FAIL_IO;
- goto failed;
- }
- if (crc == le32_to_cpu(sum->ss_datasum))
- ret = 0;
- else
- ret = NILFS_SEG_FAIL_CHECKSUM_FULL;
- failed:
- brelse(bh_sum);
- out:
+ goto out;
+
+ ret = NILFS_SEG_FAIL_IO;
+ if (nilfs_compute_checksum(nilfs, bh_sum, &crc, sizeof(sum->ss_datasum),
+ ((u64)nblock << nilfs->ns_blocksize_bits),
+ bh_sum->b_blocknr, nblock))
+ goto out;
+
+ ret = NILFS_SEG_FAIL_CHECKSUM_FULL;
+ if (crc != le32_to_cpu(sum->ss_datasum))
+ goto out;
+ ret = 0;
+out:
return ret;
}
-static void *segsum_get(struct super_block *sb, struct buffer_head **pbh,
- unsigned int *offset, unsigned int bytes)
+/**
+ * nilfs_read_summary_info - read an item on summary blocks of a log
+ * @nilfs: nilfs object
+ * @pbh: the current buffer head on summary blocks [in, out]
+ * @offset: the current byte offset on summary blocks [in, out]
+ * @bytes: byte size of the item to be read
+ */
+static void *nilfs_read_summary_info(struct the_nilfs *nilfs,
+ struct buffer_head **pbh,
+ unsigned int *offset, unsigned int bytes)
{
void *ptr;
sector_t blocknr;
@@ -265,7 +262,8 @@ static void *segsum_get(struct super_block *sb, struct buffer_head **pbh,
if (bytes > (*pbh)->b_size - *offset) {
blocknr = (*pbh)->b_blocknr;
brelse(*pbh);
- *pbh = sb_bread(sb, blocknr + 1);
+ *pbh = __bread(nilfs->ns_bdev, blocknr + 1,
+ nilfs->ns_blocksize);
if (unlikely(!*pbh))
return NULL;
*offset = 0;
@@ -275,9 +273,18 @@ static void *segsum_get(struct super_block *sb, struct buffer_head **pbh,
return ptr;
}
-static void segsum_skip(struct super_block *sb, struct buffer_head **pbh,
- unsigned int *offset, unsigned int bytes,
- unsigned long count)
+/**
+ * nilfs_skip_summary_info - skip items on summary blocks of a log
+ * @nilfs: nilfs object
+ * @pbh: the current buffer head on summary blocks [in, out]
+ * @offset: the current byte offset on summary blocks [in, out]
+ * @bytes: byte size of the item to be skipped
+ * @count: number of items to be skipped
+ */
+static void nilfs_skip_summary_info(struct the_nilfs *nilfs,
+ struct buffer_head **pbh,
+ unsigned int *offset, unsigned int bytes,
+ unsigned long count)
{
unsigned int rest_item_in_current_block
= ((*pbh)->b_size - *offset) / bytes;
@@ -294,36 +301,46 @@ static void segsum_skip(struct super_block *sb, struct buffer_head **pbh,
*offset = bytes * (count - (bcnt - 1) * nitem_per_block);
brelse(*pbh);
- *pbh = sb_bread(sb, blocknr + bcnt);
+ *pbh = __bread(nilfs->ns_bdev, blocknr + bcnt,
+ nilfs->ns_blocksize);
}
}
-static int
-collect_blocks_from_segsum(struct nilfs_sb_info *sbi, sector_t sum_blocknr,
- struct nilfs_segsum_info *ssi,
- struct list_head *head)
+/**
+ * nilfs_scan_dsync_log - get block information of a log written for data sync
+ * @nilfs: nilfs object
+ * @start_blocknr: start block number of the log
+ * @sum: log summary information
+ * @head: list head to add nilfs_recovery_block struct
+ */
+static int nilfs_scan_dsync_log(struct the_nilfs *nilfs, sector_t start_blocknr,
+ struct nilfs_segment_summary *sum,
+ struct list_head *head)
{
struct buffer_head *bh;
unsigned int offset;
- unsigned long nfinfo = ssi->nfinfo;
- sector_t blocknr = sum_blocknr + ssi->nsumblk;
+ u32 nfinfo, sumbytes;
+ sector_t blocknr;
ino_t ino;
int err = -EIO;
+ nfinfo = le32_to_cpu(sum->ss_nfinfo);
if (!nfinfo)
return 0;
- bh = sb_bread(sbi->s_super, sum_blocknr);
+ sumbytes = le32_to_cpu(sum->ss_sumbytes);
+ blocknr = start_blocknr + DIV_ROUND_UP(sumbytes, nilfs->ns_blocksize);
+ bh = __bread(nilfs->ns_bdev, start_blocknr, nilfs->ns_blocksize);
if (unlikely(!bh))
goto out;
- offset = le16_to_cpu(
- ((struct nilfs_segment_summary *)bh->b_data)->ss_bytes);
+ offset = le16_to_cpu(sum->ss_bytes);
for (;;) {
unsigned long nblocks, ndatablk, nnodeblk;
struct nilfs_finfo *finfo;
- finfo = segsum_get(sbi->s_super, &bh, &offset, sizeof(*finfo));
+ finfo = nilfs_read_summary_info(nilfs, &bh, &offset,
+ sizeof(*finfo));
if (unlikely(!finfo))
goto out;
@@ -336,8 +353,8 @@ collect_blocks_from_segsum(struct nilfs_sb_info *sbi, sector_t sum_blocknr,
struct nilfs_recovery_block *rb;
struct nilfs_binfo_v *binfo;
- binfo = segsum_get(sbi->s_super, &bh, &offset,
- sizeof(*binfo));
+ binfo = nilfs_read_summary_info(nilfs, &bh, &offset,
+ sizeof(*binfo));
if (unlikely(!binfo))
goto out;
@@ -355,9 +372,9 @@ collect_blocks_from_segsum(struct nilfs_sb_info *sbi, sector_t sum_blocknr,
}
if (--nfinfo == 0)
break;
- blocknr += nnodeblk; /* always 0 for the data sync segments */
- segsum_skip(sbi->s_super, &bh, &offset, sizeof(__le64),
- nnodeblk);
+ blocknr += nnodeblk; /* always 0 for data sync logs */
+ nilfs_skip_summary_info(nilfs, &bh, &offset, sizeof(__le64),
+ nnodeblk);
if (unlikely(!bh))
goto out;
}
@@ -467,14 +484,14 @@ static int nilfs_prepare_segment_for_recovery(struct the_nilfs *nilfs,
return err;
}
-static int nilfs_recovery_copy_block(struct nilfs_sb_info *sbi,
+static int nilfs_recovery_copy_block(struct the_nilfs *nilfs,
struct nilfs_recovery_block *rb,
struct page *page)
{
struct buffer_head *bh_org;
void *kaddr;
- bh_org = sb_bread(sbi->s_super, rb->blocknr);
+ bh_org = __bread(nilfs->ns_bdev, rb->blocknr, nilfs->ns_blocksize);
if (unlikely(!bh_org))
return -EIO;
@@ -485,13 +502,14 @@ static int nilfs_recovery_copy_block(struct nilfs_sb_info *sbi,
return 0;
}
-static int recover_dsync_blocks(struct nilfs_sb_info *sbi,
- struct list_head *head,
- unsigned long *nr_salvaged_blocks)
+static int nilfs_recover_dsync_blocks(struct the_nilfs *nilfs,
+ struct nilfs_sb_info *sbi,
+ struct list_head *head,
+ unsigned long *nr_salvaged_blocks)
{
struct inode *inode;
struct nilfs_recovery_block *rb, *n;
- unsigned blocksize = sbi->s_super->s_blocksize;
+ unsigned blocksize = nilfs->ns_blocksize;
struct page *page;
loff_t pos;
int err = 0, err2 = 0;
@@ -511,7 +529,7 @@ static int recover_dsync_blocks(struct nilfs_sb_info *sbi,
if (unlikely(err))
goto failed_inode;
- err = nilfs_recovery_copy_block(sbi, rb, page);
+ err = nilfs_recovery_copy_block(nilfs, rb, page);
if (unlikely(err))
goto failed_page;
@@ -551,18 +569,20 @@ static int recover_dsync_blocks(struct nilfs_sb_info *sbi,
/**
* nilfs_do_roll_forward - salvage logical segments newer than the latest
* checkpoint
+ * @nilfs: nilfs object
* @sbi: nilfs_sb_info
- * @nilfs: the_nilfs
* @ri: pointer to a nilfs_recovery_info
*/
static int nilfs_do_roll_forward(struct the_nilfs *nilfs,
struct nilfs_sb_info *sbi,
struct nilfs_recovery_info *ri)
{
- struct nilfs_segsum_info ssi;
+ struct buffer_head *bh_sum = NULL;
+ struct nilfs_segment_summary *sum;
sector_t pseg_start;
sector_t seg_start, seg_end; /* Starting/ending DBN of full segment */
unsigned long nsalvaged_blocks = 0;
+ unsigned int flags;
u64 seg_seq;
__u64 segnum, nextnum = 0;
int empty_seg = 0;
@@ -581,8 +601,14 @@ static int nilfs_do_roll_forward(struct the_nilfs *nilfs,
nilfs_get_segment_range(nilfs, segnum, &seg_start, &seg_end);
while (segnum != ri->ri_segnum || pseg_start <= ri->ri_pseg_start) {
+ brelse(bh_sum);
+ bh_sum = nilfs_read_log_header(nilfs, pseg_start, &sum);
+ if (!bh_sum) {
+ err = -EIO;
+ goto failed;
+ }
- ret = load_segment_summary(sbi, pseg_start, seg_seq, &ssi);
+ ret = nilfs_validate_log(nilfs, seg_seq, bh_sum, sum);
if (ret) {
if (ret == NILFS_SEG_FAIL_IO) {
err = -EIO;
@@ -590,33 +616,38 @@ static int nilfs_do_roll_forward(struct the_nilfs *nilfs,
}
goto strayed;
}
- if (unlikely(NILFS_SEG_HAS_SR(&ssi)))
+
+ flags = le16_to_cpu(sum->ss_flags);
+ if (flags & NILFS_SS_SR)
goto confused;
/* Found a valid partial segment; do recovery actions */
- nextnum = nilfs_get_segnum_of_block(nilfs, ssi.next);
+ nextnum = nilfs_get_segnum_of_block(nilfs,
+ le64_to_cpu(sum->ss_next));
empty_seg = 0;
- nilfs->ns_ctime = ssi.ctime;
- if (!(ssi.flags & NILFS_SS_GC))
- nilfs->ns_nongc_ctime = ssi.ctime;
+ nilfs->ns_ctime = le64_to_cpu(sum->ss_create);
+ if (!(flags & NILFS_SS_GC))
+ nilfs->ns_nongc_ctime = nilfs->ns_ctime;
switch (state) {
case RF_INIT_ST:
- if (!NILFS_SEG_LOGBGN(&ssi) || !NILFS_SEG_DSYNC(&ssi))
+ if (!(flags & NILFS_SS_LOGBGN) ||
+ !(flags & NILFS_SS_SYNDT))
goto try_next_pseg;
state = RF_DSYNC_ST;
/* Fall through */
case RF_DSYNC_ST:
- if (!NILFS_SEG_DSYNC(&ssi))
+ if (!(flags & NILFS_SS_SYNDT))
goto confused;
- err = collect_blocks_from_segsum(
- sbi, pseg_start, &ssi, &dsync_blocks);
+ err = nilfs_scan_dsync_log(nilfs, pseg_start, sum,
+ &dsync_blocks);
if (unlikely(err))
goto failed;
- if (NILFS_SEG_LOGEND(&ssi)) {
- err = recover_dsync_blocks(
- sbi, &dsync_blocks, &nsalvaged_blocks);
+ if (flags & NILFS_SS_LOGEND) {
+ err = nilfs_recover_dsync_blocks(
+ nilfs, sbi, &dsync_blocks,
+ &nsalvaged_blocks);
if (unlikely(err))
goto failed;
state = RF_INIT_ST;
@@ -627,7 +658,7 @@ static int nilfs_do_roll_forward(struct the_nilfs *nilfs,
try_next_pseg:
if (pseg_start == ri->ri_lsegs_end)
break;
- pseg_start += ssi.nblocks;
+ pseg_start += le32_to_cpu(sum->ss_nblocks);
if (pseg_start < seg_end)
continue;
goto feed_segment;
@@ -652,8 +683,9 @@ static int nilfs_do_roll_forward(struct the_nilfs *nilfs,
ri->ri_need_recovery = NILFS_RECOVERY_ROLLFORWARD_DONE;
}
out:
+ brelse(bh_sum);
dispose_recovery_list(&dsync_blocks);
- nilfs_detach_writer(sbi->s_nilfs, sbi);
+ nilfs_detach_writer(nilfs, sbi);
return err;
confused:
@@ -667,7 +699,6 @@ static int nilfs_do_roll_forward(struct the_nilfs *nilfs,
}
static void nilfs_finish_roll_forward(struct the_nilfs *nilfs,
- struct nilfs_sb_info *sbi,
struct nilfs_recovery_info *ri)
{
struct buffer_head *bh;
@@ -677,7 +708,7 @@ static void nilfs_finish_roll_forward(struct the_nilfs *nilfs,
nilfs_get_segnum_of_block(nilfs, ri->ri_super_root))
return;
- bh = sb_getblk(sbi->s_super, ri->ri_lsegs_start);
+ bh = __getblk(nilfs->ns_bdev, ri->ri_lsegs_start, nilfs->ns_blocksize);
BUG_ON(!bh);
memset(bh->b_data, 0, bh->b_size);
set_buffer_dirty(bh);
@@ -690,9 +721,8 @@ static void nilfs_finish_roll_forward(struct the_nilfs *nilfs,
}
/**
- * nilfs_recover_logical_segments - salvage logical segments written after
- * the latest super root
- * @nilfs: the_nilfs
+ * nilfs_salvage_orphan_logs - salvage logs written after the latest checkpoint
+ * @nilfs: nilfs object
* @sbi: nilfs_sb_info
* @ri: pointer to a nilfs_recovery_info struct to store search results.
*
@@ -709,9 +739,9 @@ static void nilfs_finish_roll_forward(struct the_nilfs *nilfs,
*
* %-ENOMEM - Insufficient memory available.
*/
-int nilfs_recover_logical_segments(struct the_nilfs *nilfs,
- struct nilfs_sb_info *sbi,
- struct nilfs_recovery_info *ri)
+int nilfs_salvage_orphan_logs(struct the_nilfs *nilfs,
+ struct nilfs_sb_info *sbi,
+ struct nilfs_recovery_info *ri)
{
int err;
@@ -751,7 +781,7 @@ int nilfs_recover_logical_segments(struct the_nilfs *nilfs,
goto failed;
}
- nilfs_finish_roll_forward(nilfs, sbi, ri);
+ nilfs_finish_roll_forward(nilfs, ri);
}
failed:
@@ -762,7 +792,6 @@ int nilfs_recover_logical_segments(struct the_nilfs *nilfs,
/**
* nilfs_search_super_root - search the latest valid super root
* @nilfs: the_nilfs
- * @sbi: nilfs_sb_info
* @ri: pointer to a nilfs_recovery_info struct to store search results.
*
* nilfs_search_super_root() looks for the latest super-root from a partial
@@ -775,14 +804,19 @@ int nilfs_recover_logical_segments(struct the_nilfs *nilfs,
* %-EINVAL - No valid segment found
*
* %-EIO - I/O error
+ *
+ * %-ENOMEM - Insufficient memory available.
*/
-int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
+int nilfs_search_super_root(struct the_nilfs *nilfs,
struct nilfs_recovery_info *ri)
{
- struct nilfs_segsum_info ssi;
+ struct buffer_head *bh_sum = NULL;
+ struct nilfs_segment_summary *sum;
sector_t pseg_start, pseg_end, sr_pseg_start = 0;
sector_t seg_start, seg_end; /* range of full segment (block number) */
sector_t b, end;
+ unsigned long nblocks;
+ unsigned int flags;
u64 seg_seq;
__u64 segnum, nextnum = 0;
__u64 cno;
@@ -801,17 +835,24 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
/* Read ahead segment */
b = seg_start;
while (b <= seg_end)
- sb_breadahead(sbi->s_super, b++);
+ __breadahead(nilfs->ns_bdev, b++, nilfs->ns_blocksize);
for (;;) {
- /* Load segment summary */
- ret = load_segment_summary(sbi, pseg_start, seg_seq, &ssi);
+ brelse(bh_sum);
+ ret = NILFS_SEG_FAIL_IO;
+ bh_sum = nilfs_read_log_header(nilfs, pseg_start, &sum);
+ if (!bh_sum)
+ goto failed;
+
+ ret = nilfs_validate_log(nilfs, seg_seq, bh_sum, sum);
if (ret) {
if (ret == NILFS_SEG_FAIL_IO)
goto failed;
goto strayed;
}
- pseg_end = pseg_start + ssi.nblocks - 1;
+
+ nblocks = le32_to_cpu(sum->ss_nblocks);
+ pseg_end = pseg_start + nblocks - 1;
if (unlikely(pseg_end > seg_end)) {
ret = NILFS_SEG_FAIL_CONSISTENCY;
goto strayed;
@@ -821,11 +862,13 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
ri->ri_pseg_start = pseg_start;
ri->ri_seq = seg_seq;
ri->ri_segnum = segnum;
- nextnum = nilfs_get_segnum_of_block(nilfs, ssi.next);
+ nextnum = nilfs_get_segnum_of_block(nilfs,
+ le64_to_cpu(sum->ss_next));
ri->ri_nextnum = nextnum;
empty_seg = 0;
- if (!NILFS_SEG_HAS_SR(&ssi) && !scan_newer) {
+ flags = le16_to_cpu(sum->ss_flags);
+ if (!(flags & NILFS_SS_SR) && !scan_newer) {
/* This will never happen because a superblock
(last_segment) always points to a pseg
having a super root. */
@@ -836,14 +879,15 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
if (pseg_start == seg_start) {
nilfs_get_segment_range(nilfs, nextnum, &b, &end);
while (b <= end)
- sb_breadahead(sbi->s_super, b++);
+ __breadahead(nilfs->ns_bdev, b++,
+ nilfs->ns_blocksize);
}
- if (!NILFS_SEG_HAS_SR(&ssi)) {
- if (!ri->ri_lsegs_start && NILFS_SEG_LOGBGN(&ssi)) {
+ if (!(flags & NILFS_SS_SR)) {
+ if (!ri->ri_lsegs_start && (flags & NILFS_SS_LOGBGN)) {
ri->ri_lsegs_start = pseg_start;
ri->ri_lsegs_start_seq = seg_seq;
}
- if (NILFS_SEG_LOGEND(&ssi))
+ if (flags & NILFS_SS_LOGEND)
ri->ri_lsegs_end = pseg_start;
goto try_next_pseg;
}
@@ -854,12 +898,12 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
ri->ri_lsegs_start = ri->ri_lsegs_end = 0;
nilfs_dispose_segment_list(&segments);
- nilfs->ns_pseg_offset = (sr_pseg_start = pseg_start)
- + ssi.nblocks - seg_start;
+ sr_pseg_start = pseg_start;
+ nilfs->ns_pseg_offset = pseg_start + nblocks - seg_start;
nilfs->ns_seg_seq = seg_seq;
nilfs->ns_segnum = segnum;
nilfs->ns_cno = cno; /* nilfs->ns_cno = ri->ri_cno + 1 */
- nilfs->ns_ctime = ssi.ctime;
+ nilfs->ns_ctime = le64_to_cpu(sum->ss_create);
nilfs->ns_nextnum = nextnum;
if (scan_newer)
@@ -870,15 +914,9 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
scan_newer = 1;
}
- /* reset region for roll-forward */
- pseg_start += ssi.nblocks;
- if (pseg_start < seg_end)
- continue;
- goto feed_segment;
-
try_next_pseg:
/* Standing on a course, or met an inconsistent state */
- pseg_start += ssi.nblocks;
+ pseg_start += nblocks;
if (pseg_start < seg_end)
continue;
goto feed_segment;
@@ -909,6 +947,7 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
super_root_found:
/* Updating pointers relating to the latest checkpoint */
+ brelse(bh_sum);
list_splice_tail(&segments, &ri->ri_used_segments);
nilfs->ns_last_pseg = sr_pseg_start;
nilfs->ns_last_seq = nilfs->ns_seg_seq;
@@ -916,6 +955,7 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
return 0;
failed:
+ brelse(bh_sum);
nilfs_dispose_segment_list(&segments);
return (ret < 0) ? ret : nilfs_warn_segment_error(ret);
}
diff --git a/fs/nilfs2/segbuf.h b/fs/nilfs2/segbuf.h
index 85fbb66..b04f08c 100644
--- a/fs/nilfs2/segbuf.h
+++ b/fs/nilfs2/segbuf.h
@@ -54,17 +54,6 @@ struct nilfs_segsum_info {
sector_t next;
};
-/* macro for the flags */
-#define NILFS_SEG_HAS_SR(sum) ((sum)->flags & NILFS_SS_SR)
-#define NILFS_SEG_LOGBGN(sum) ((sum)->flags & NILFS_SS_LOGBGN)
-#define NILFS_SEG_LOGEND(sum) ((sum)->flags & NILFS_SS_LOGEND)
-#define NILFS_SEG_DSYNC(sum) ((sum)->flags & NILFS_SS_SYNDT)
-#define NILFS_SEG_SIMPLEX(sum) \
- (((sum)->flags & (NILFS_SS_LOGBGN | NILFS_SS_LOGEND)) == \
- (NILFS_SS_LOGBGN | NILFS_SS_LOGEND))
-
-#define NILFS_SEG_EMPTY(sum) ((sum)->nblocks == (sum)->nsumblk)
-
/**
* struct nilfs_segment_buffer - Segment buffer
* @sb_super: back pointer to a superblock struct
@@ -141,6 +130,19 @@ int nilfs_segbuf_extend_payload(struct nilfs_segment_buffer *,
struct buffer_head **);
void nilfs_segbuf_fill_in_segsum(struct nilfs_segment_buffer *);
+static inline int nilfs_segbuf_simplex(struct nilfs_segment_buffer *segbuf)
+{
+ unsigned int flags = segbuf->sb_sum.flags;
+
+ return (flags & (NILFS_SS_LOGBGN | NILFS_SS_LOGEND)) ==
+ (NILFS_SS_LOGBGN | NILFS_SS_LOGEND);
+}
+
+static inline int nilfs_segbuf_empty(struct nilfs_segment_buffer *segbuf)
+{
+ return segbuf->sb_sum.nblocks == segbuf->sb_sum.nsumblk;
+}
+
static inline void
nilfs_segbuf_add_segsum_buffer(struct nilfs_segment_buffer *segbuf,
struct buffer_head *bh)
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index c920164..9fd051a 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -1914,12 +1914,12 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci)
}
}
- if (!NILFS_SEG_SIMPLEX(&segbuf->sb_sum)) {
- if (NILFS_SEG_LOGBGN(&segbuf->sb_sum)) {
+ if (!nilfs_segbuf_simplex(segbuf)) {
+ if (segbuf->sb_sum.flags & NILFS_SS_LOGBGN) {
set_bit(NILFS_SC_UNCLOSED, &sci->sc_flags);
sci->sc_lseg_stime = jiffies;
}
- if (NILFS_SEG_LOGEND(&segbuf->sb_sum))
+ if (segbuf->sb_sum.flags & NILFS_SS_LOGEND)
clear_bit(NILFS_SC_UNCLOSED, &sci->sc_flags);
}
}
@@ -1951,7 +1951,6 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci)
if (update_sr) {
nilfs_set_last_segment(nilfs, segbuf->sb_pseg_start,
segbuf->sb_sum.seg_seq, nilfs->ns_cno++);
- set_nilfs_sb_dirty(nilfs);
clear_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags);
clear_bit(NILFS_SC_DIRTY, &sci->sc_flags);
@@ -2082,7 +2081,7 @@ static int nilfs_segctor_do_construct(struct nilfs_sc_info *sci, int mode)
/* Avoid empty segment */
if (sci->sc_stage.scnt == NILFS_ST_DONE &&
- NILFS_SEG_EMPTY(&sci->sc_curseg->sb_sum)) {
+ nilfs_segbuf_empty(sci->sc_curseg)) {
nilfs_segctor_abort_construction(sci, nilfs, 1);
goto out;
}
@@ -2408,6 +2407,7 @@ static int nilfs_segctor_construct(struct nilfs_sc_info *sci, int mode)
{
struct nilfs_sb_info *sbi = sci->sc_sbi;
struct the_nilfs *nilfs = sbi->s_nilfs;
+ struct nilfs_super_block **sbp;
int err = 0;
nilfs_segctor_accept(sci);
@@ -2423,8 +2423,13 @@ static int nilfs_segctor_construct(struct nilfs_sc_info *sci, int mode)
if (test_bit(NILFS_SC_SUPER_ROOT, &sci->sc_flags) &&
nilfs_discontinued(nilfs)) {
down_write(&nilfs->ns_sem);
- err = nilfs_commit_super(
- sbi, nilfs_altsb_need_update(nilfs));
+ err = -EIO;
+ sbp = nilfs_prepare_super(sbi,
+ nilfs_sb_will_flip(nilfs));
+ if (likely(sbp)) {
+ nilfs_set_log_cursor(sbp[0], nilfs);
+ err = nilfs_commit_super(sbi, NILFS_SB_COMMIT);
+ }
up_write(&nilfs->ns_sem);
}
}
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h
index 01e20db..17c487b 100644
--- a/fs/nilfs2/segment.h
+++ b/fs/nilfs2/segment.h
@@ -234,13 +234,13 @@ extern int nilfs_attach_segment_constructor(struct nilfs_sb_info *);
extern void nilfs_detach_segment_constructor(struct nilfs_sb_info *);
/* recovery.c */
-extern int nilfs_read_super_root_block(struct super_block *, sector_t,
+extern int nilfs_read_super_root_block(struct the_nilfs *, sector_t,
struct buffer_head **, int);
-extern int nilfs_search_super_root(struct the_nilfs *, struct nilfs_sb_info *,
+extern int nilfs_search_super_root(struct the_nilfs *,
struct nilfs_recovery_info *);
-extern int nilfs_recover_logical_segments(struct the_nilfs *,
- struct nilfs_sb_info *,
- struct nilfs_recovery_info *);
+extern int nilfs_salvage_orphan_logs(struct the_nilfs *,
+ struct nilfs_sb_info *,
+ struct nilfs_recovery_info *);
extern void nilfs_dispose_segment_list(struct list_head *);
#endif /* _NILFS_SEGMENT_H */
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 414ef68..26078b3 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -55,6 +55,8 @@
#include "nilfs.h"
#include "mdt.h"
#include "alloc.h"
+#include "btree.h"
+#include "btnode.h"
#include "page.h"
#include "cpfile.h"
#include "ifile.h"
@@ -74,6 +76,25 @@ struct kmem_cache *nilfs_btree_path_cache;
static int nilfs_remount(struct super_block *sb, int *flags, char *data);
+static void nilfs_set_error(struct nilfs_sb_info *sbi)
+{
+ struct the_nilfs *nilfs = sbi->s_nilfs;
+ struct nilfs_super_block **sbp;
+
+ down_write(&nilfs->ns_sem);
+ if (!(nilfs->ns_mount_state & NILFS_ERROR_FS)) {
+ nilfs->ns_mount_state |= NILFS_ERROR_FS;
+ sbp = nilfs_prepare_super(sbi, 0);
+ if (likely(sbp)) {
+ sbp[0]->s_state |= cpu_to_le16(NILFS_ERROR_FS);
+ if (sbp[1])
+ sbp[1]->s_state |= cpu_to_le16(NILFS_ERROR_FS);
+ nilfs_commit_super(sbi, NILFS_SB_COMMIT_ALL);
+ }
+ }
+ up_write(&nilfs->ns_sem);
+}
+
/**
* nilfs_error() - report failure condition on a filesystem
*
@@ -99,16 +120,7 @@ void nilfs_error(struct super_block *sb, const char *function,
va_end(args);
if (!(sb->s_flags & MS_RDONLY)) {
- struct the_nilfs *nilfs = sbi->s_nilfs;
-
- down_write(&nilfs->ns_sem);
- if (!(nilfs->ns_mount_state & NILFS_ERROR_FS)) {
- nilfs->ns_mount_state |= NILFS_ERROR_FS;
- nilfs->ns_sbp[0]->s_state |=
- cpu_to_le16(NILFS_ERROR_FS);
- nilfs_commit_super(sbi, 1);
- }
- up_write(&nilfs->ns_sem);
+ nilfs_set_error(sbi);
if (nilfs_test_opt(sbi, ERRORS_RO)) {
printk(KERN_CRIT "Remounting filesystem read-only\n");
@@ -176,7 +188,7 @@ static void nilfs_clear_inode(struct inode *inode)
nilfs_btnode_cache_clear(&ii->i_btnode_cache);
}
-static int nilfs_sync_super(struct nilfs_sb_info *sbi, int dupsb)
+static int nilfs_sync_super(struct nilfs_sb_info *sbi, int flag)
{
struct the_nilfs *nilfs = sbi->s_nilfs;
int err;
@@ -202,12 +214,20 @@ static int nilfs_sync_super(struct nilfs_sb_info *sbi, int dupsb)
printk(KERN_ERR
"NILFS: unable to write superblock (err=%d)\n", err);
if (err == -EIO && nilfs->ns_sbh[1]) {
+ /*
+ * sbp[0] points to newer log than sbp[1],
+ * so copy sbp[0] to sbp[1] to take over sbp[0].
+ */
+ memcpy(nilfs->ns_sbp[1], nilfs->ns_sbp[0],
+ nilfs->ns_sbsize);
nilfs_fall_back_super_block(nilfs);
goto retry;
}
} else {
struct nilfs_super_block *sbp = nilfs->ns_sbp[0];
+ nilfs->ns_sbwcount++;
+
/*
* The latest segment becomes trailable from the position
* written in superblock.
@@ -216,66 +236,122 @@ static int nilfs_sync_super(struct nilfs_sb_info *sbi, int dupsb)
/* update GC protection for recent segments */
if (nilfs->ns_sbh[1]) {
- sbp = NULL;
- if (dupsb) {
+ if (flag == NILFS_SB_COMMIT_ALL) {
set_buffer_dirty(nilfs->ns_sbh[1]);
- if (!sync_dirty_buffer(nilfs->ns_sbh[1]))
- sbp = nilfs->ns_sbp[1];
+ if (sync_dirty_buffer(nilfs->ns_sbh[1]) < 0)
+ goto out;
}
+ if (le64_to_cpu(nilfs->ns_sbp[1]->s_last_cno) <
+ le64_to_cpu(nilfs->ns_sbp[0]->s_last_cno))
+ sbp = nilfs->ns_sbp[1];
}
- if (sbp) {
- spin_lock(&nilfs->ns_last_segment_lock);
- nilfs->ns_prot_seq = le64_to_cpu(sbp->s_last_seq);
- spin_unlock(&nilfs->ns_last_segment_lock);
- }
- }
+ spin_lock(&nilfs->ns_last_segment_lock);
+ nilfs->ns_prot_seq = le64_to_cpu(sbp->s_last_seq);
+ spin_unlock(&nilfs->ns_last_segment_lock);
+ }
+ out:
return err;
}
-int nilfs_commit_super(struct nilfs_sb_info *sbi, int dupsb)
+void nilfs_set_log_cursor(struct nilfs_super_block *sbp,
+ struct the_nilfs *nilfs)
+{
+ sector_t nfreeblocks;
+
+ /* nilfs->ns_sem must be locked by the caller. */
+ nilfs_count_free_blocks(nilfs, &nfreeblocks);
+ sbp->s_free_blocks_count = cpu_to_le64(nfreeblocks);
+
+ spin_lock(&nilfs->ns_last_segment_lock);
+ sbp->s_last_seq = cpu_to_le64(nilfs->ns_last_seq);
+ sbp->s_last_pseg = cpu_to_le64(nilfs->ns_last_pseg);
+ sbp->s_last_cno = cpu_to_le64(nilfs->ns_last_cno);
+ spin_unlock(&nilfs->ns_last_segment_lock);
+}
+
+struct nilfs_super_block **nilfs_prepare_super(struct nilfs_sb_info *sbi,
+ int flip)
{
struct the_nilfs *nilfs = sbi->s_nilfs;
struct nilfs_super_block **sbp = nilfs->ns_sbp;
- sector_t nfreeblocks;
- time_t t;
- int err;
- /* nilfs->sem must be locked by the caller. */
+ /* nilfs->ns_sem must be locked by the caller. */
if (sbp[0]->s_magic != cpu_to_le16(NILFS_SUPER_MAGIC)) {
- if (sbp[1] && sbp[1]->s_magic == cpu_to_le16(NILFS_SUPER_MAGIC))
- nilfs_swap_super_block(nilfs);
- else {
+ if (sbp[1] &&
+ sbp[1]->s_magic == cpu_to_le16(NILFS_SUPER_MAGIC)) {
+ memcpy(sbp[0], sbp[1], nilfs->ns_sbsize);
+ } else {
printk(KERN_CRIT "NILFS: superblock broke on dev %s\n",
sbi->s_super->s_id);
- return -EIO;
+ return NULL;
}
+ } else if (sbp[1] &&
+ sbp[1]->s_magic != cpu_to_le16(NILFS_SUPER_MAGIC)) {
+ memcpy(sbp[1], sbp[0], nilfs->ns_sbsize);
}
- err = nilfs_count_free_blocks(nilfs, &nfreeblocks);
- if (unlikely(err)) {
- printk(KERN_ERR "NILFS: failed to count free blocks\n");
- return err;
- }
- spin_lock(&nilfs->ns_last_segment_lock);
- sbp[0]->s_last_seq = cpu_to_le64(nilfs->ns_last_seq);
- sbp[0]->s_last_pseg = cpu_to_le64(nilfs->ns_last_pseg);
- sbp[0]->s_last_cno = cpu_to_le64(nilfs->ns_last_cno);
- spin_unlock(&nilfs->ns_last_segment_lock);
+ if (flip && sbp[1])
+ nilfs_swap_super_block(nilfs);
+
+ return sbp;
+}
+
+int nilfs_commit_super(struct nilfs_sb_info *sbi, int flag)
+{
+ struct the_nilfs *nilfs = sbi->s_nilfs;
+ struct nilfs_super_block **sbp = nilfs->ns_sbp;
+ time_t t;
+
+ /* nilfs->ns_sem must be locked by the caller. */
t = get_seconds();
- nilfs->ns_sbwtime[0] = t;
- sbp[0]->s_free_blocks_count = cpu_to_le64(nfreeblocks);
+ nilfs->ns_sbwtime = t;
sbp[0]->s_wtime = cpu_to_le64(t);
sbp[0]->s_sum = 0;
sbp[0]->s_sum = cpu_to_le32(crc32_le(nilfs->ns_crc_seed,
(unsigned char *)sbp[0],
nilfs->ns_sbsize));
- if (dupsb && sbp[1]) {
- memcpy(sbp[1], sbp[0], nilfs->ns_sbsize);
- nilfs->ns_sbwtime[1] = t;
+ if (flag == NILFS_SB_COMMIT_ALL && sbp[1]) {
+ sbp[1]->s_wtime = sbp[0]->s_wtime;
+ sbp[1]->s_sum = 0;
+ sbp[1]->s_sum = cpu_to_le32(crc32_le(nilfs->ns_crc_seed,
+ (unsigned char *)sbp[1],
+ nilfs->ns_sbsize));
}
clear_nilfs_sb_dirty(nilfs);
- return nilfs_sync_super(sbi, dupsb);
+ return nilfs_sync_super(sbi, flag);
+}
+
+/**
+ * nilfs_cleanup_super() - write filesystem state for cleanup
+ * @sbi: nilfs_sb_info to be unmounted or degraded to read-only
+ *
+ * This function restores state flags in the on-disk super block.
+ * This will set "clean" flag (i.e. NILFS_VALID_FS) unless the
+ * filesystem was not clean previously.
+ */
+int nilfs_cleanup_super(struct nilfs_sb_info *sbi)
+{
+ struct nilfs_super_block **sbp;
+ int flag = NILFS_SB_COMMIT;
+ int ret = -EIO;
+
+ sbp = nilfs_prepare_super(sbi, 0);
+ if (sbp) {
+ sbp[0]->s_state = cpu_to_le16(sbi->s_nilfs->ns_mount_state);
+ nilfs_set_log_cursor(sbp[0], sbi->s_nilfs);
+ if (sbp[1] && sbp[0]->s_last_cno == sbp[1]->s_last_cno) {
+ /*
+ * make the "clean" flag also to the opposite
+ * super block if both super blocks point to
+ * the same checkpoint.
+ */
+ sbp[1]->s_state = sbp[0]->s_state;
+ flag = NILFS_SB_COMMIT_ALL;
+ }
+ ret = nilfs_commit_super(sbi, flag);
+ }
+ return ret;
}
static void nilfs_put_super(struct super_block *sb)
@@ -289,8 +365,7 @@ static void nilfs_put_super(struct super_block *sb)
if (!(sb->s_flags & MS_RDONLY)) {
down_write(&nilfs->ns_sem);
- nilfs->ns_sbp[0]->s_state = cpu_to_le16(nilfs->ns_mount_state);
- nilfs_commit_super(sbi, 1);
+ nilfs_cleanup_super(sbi);
up_write(&nilfs->ns_sem);
}
down_write(&nilfs->ns_super_sem);
@@ -311,6 +386,7 @@ static int nilfs_sync_fs(struct super_block *sb, int wait)
{
struct nilfs_sb_info *sbi = NILFS_SB(sb);
struct the_nilfs *nilfs = sbi->s_nilfs;
+ struct nilfs_super_block **sbp;
int err = 0;
/* This function is called when super block should be written back */
@@ -318,8 +394,13 @@ static int nilfs_sync_fs(struct super_block *sb, int wait)
err = nilfs_construct_segment(sb);
down_write(&nilfs->ns_sem);
- if (nilfs_sb_dirty(nilfs))
- nilfs_commit_super(sbi, 1);
+ if (nilfs_sb_dirty(nilfs)) {
+ sbp = nilfs_prepare_super(sbi, nilfs_sb_will_flip(nilfs));
+ if (likely(sbp)) {
+ nilfs_set_log_cursor(sbp[0], nilfs);
+ nilfs_commit_super(sbi, NILFS_SB_COMMIT);
+ }
+ }
up_write(&nilfs->ns_sem);
return err;
@@ -442,20 +523,20 @@ static int nilfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
struct nilfs_sb_info *sbi = NILFS_SB(sb);
if (!nilfs_test_opt(sbi, BARRIER))
- seq_printf(seq, ",nobarrier");
+ seq_puts(seq, ",nobarrier");
if (nilfs_test_opt(sbi, SNAPSHOT))
seq_printf(seq, ",cp=%llu",
(unsigned long long int)sbi->s_snapshot_cno);
if (nilfs_test_opt(sbi, ERRORS_PANIC))
- seq_printf(seq, ",errors=panic");
+ seq_puts(seq, ",errors=panic");
if (nilfs_test_opt(sbi, ERRORS_CONT))
- seq_printf(seq, ",errors=continue");
+ seq_puts(seq, ",errors=continue");
if (nilfs_test_opt(sbi, STRICT_ORDER))
- seq_printf(seq, ",order=strict");
+ seq_puts(seq, ",order=strict");
if (nilfs_test_opt(sbi, NORECOVERY))
- seq_printf(seq, ",norecovery");
+ seq_puts(seq, ",norecovery");
if (nilfs_test_opt(sbi, DISCARD))
- seq_printf(seq, ",discard");
+ seq_puts(seq, ",discard");
return 0;
}
@@ -524,23 +605,25 @@ static const struct export_operations nilfs_export_ops = {
enum {
Opt_err_cont, Opt_err_panic, Opt_err_ro,
- Opt_nobarrier, Opt_snapshot, Opt_order, Opt_norecovery,
- Opt_discard, Opt_err,
+ Opt_barrier, Opt_nobarrier, Opt_snapshot, Opt_order, Opt_norecovery,
+ Opt_discard, Opt_nodiscard, Opt_err,
};
static match_table_t tokens = {
{Opt_err_cont, "errors=continue"},
{Opt_err_panic, "errors=panic"},
{Opt_err_ro, "errors=remount-ro"},
+ {Opt_barrier, "barrier"},
{Opt_nobarrier, "nobarrier"},
{Opt_snapshot, "cp=%u"},
{Opt_order, "order=%s"},
{Opt_norecovery, "norecovery"},
{Opt_discard, "discard"},
+ {Opt_nodiscard, "nodiscard"},
{Opt_err, NULL}
};
-static int parse_options(char *options, struct super_block *sb)
+static int parse_options(char *options, struct super_block *sb, int is_remount)
{
struct nilfs_sb_info *sbi = NILFS_SB(sb);
char *p;
@@ -557,6 +640,9 @@ static int parse_options(char *options, struct super_block *sb)
token = match_token(p, tokens, args);
switch (token) {
+ case Opt_barrier:
+ nilfs_set_opt(sbi, BARRIER);
+ break;
case Opt_nobarrier:
nilfs_clear_opt(sbi, BARRIER);
break;
@@ -582,8 +668,26 @@ static int parse_options(char *options, struct super_block *sb)
case Opt_snapshot:
if (match_int(&args[0], &option) || option <= 0)
return 0;
- if (!(sb->s_flags & MS_RDONLY))
+ if (is_remount) {
+ if (!nilfs_test_opt(sbi, SNAPSHOT)) {
+ printk(KERN_ERR
+ "NILFS: cannot change regular "
+ "mount to snapshot.\n");
+ return 0;
+ } else if (option != sbi->s_snapshot_cno) {
+ printk(KERN_ERR
+ "NILFS: cannot remount to a "
+ "different snapshot.\n");
+ return 0;
+ }
+ break;
+ }
+ if (!(sb->s_flags & MS_RDONLY)) {
+ printk(KERN_ERR "NILFS: cannot mount snapshot "
+ "read/write. A read-only option is "
+ "required.\n");
return 0;
+ }
sbi->s_snapshot_cno = option;
nilfs_set_opt(sbi, SNAPSHOT);
break;
@@ -593,6 +697,9 @@ static int parse_options(char *options, struct super_block *sb)
case Opt_discard:
nilfs_set_opt(sbi, DISCARD);
break;
+ case Opt_nodiscard:
+ nilfs_clear_opt(sbi, DISCARD);
+ break;
default:
printk(KERN_ERR
"NILFS: Unrecognized mount option \"%s\"\n", p);
@@ -613,11 +720,18 @@ nilfs_set_default_options(struct nilfs_sb_info *sbi,
static int nilfs_setup_super(struct nilfs_sb_info *sbi)
{
struct the_nilfs *nilfs = sbi->s_nilfs;
- struct nilfs_super_block *sbp = nilfs->ns_sbp[0];
- int max_mnt_count = le16_to_cpu(sbp->s_max_mnt_count);
- int mnt_count = le16_to_cpu(sbp->s_mnt_count);
+ struct nilfs_super_block **sbp;
+ int max_mnt_count;
+ int mnt_count;
+
+ /* nilfs->ns_sem must be locked by the caller. */
+ sbp = nilfs_prepare_super(sbi, 0);
+ if (!sbp)
+ return -EIO;
+
+ max_mnt_count = le16_to_cpu(sbp[0]->s_max_mnt_count);
+ mnt_count = le16_to_cpu(sbp[0]->s_mnt_count);
- /* nilfs->sem must be locked by the caller. */
if (nilfs->ns_mount_state & NILFS_ERROR_FS) {
printk(KERN_WARNING
"NILFS warning: mounting fs with errors\n");
@@ -628,12 +742,15 @@ static int nilfs_setup_super(struct nilfs_sb_info *sbi)
#endif
}
if (!max_mnt_count)
- sbp->s_max_mnt_count = cpu_to_le16(NILFS_DFL_MAX_MNT_COUNT);
-
- sbp->s_mnt_count = cpu_to_le16(mnt_count + 1);
- sbp->s_state = cpu_to_le16(le16_to_cpu(sbp->s_state) & ~NILFS_VALID_FS);
- sbp->s_mtime = cpu_to_le64(get_seconds());
- return nilfs_commit_super(sbi, 1);
+ sbp[0]->s_max_mnt_count = cpu_to_le16(NILFS_DFL_MAX_MNT_COUNT);
+
+ sbp[0]->s_mnt_count = cpu_to_le16(mnt_count + 1);
+ sbp[0]->s_state =
+ cpu_to_le16(le16_to_cpu(sbp[0]->s_state) & ~NILFS_VALID_FS);
+ sbp[0]->s_mtime = cpu_to_le64(get_seconds());
+ /* synchronize sbp[1] with sbp[0] */
+ memcpy(sbp[1], sbp[0], nilfs->ns_sbsize);
+ return nilfs_commit_super(sbi, NILFS_SB_COMMIT_ALL);
}
struct nilfs_super_block *nilfs_read_super_block(struct super_block *sb,
@@ -670,7 +787,31 @@ int nilfs_store_magic_and_option(struct super_block *sb,
sbi->s_interval = le32_to_cpu(sbp->s_c_interval);
sbi->s_watermark = le32_to_cpu(sbp->s_c_block_max);
- return !parse_options(data, sb) ? -EINVAL : 0 ;
+ return !parse_options(data, sb, 0) ? -EINVAL : 0 ;
+}
+
+int nilfs_check_feature_compatibility(struct super_block *sb,
+ struct nilfs_super_block *sbp)
+{
+ __u64 features;
+
+ features = le64_to_cpu(sbp->s_feature_incompat) &
+ ~NILFS_FEATURE_INCOMPAT_SUPP;
+ if (features) {
+ printk(KERN_ERR "NILFS: couldn't mount because of unsupported "
+ "optional features (%llx)\n",
+ (unsigned long long)features);
+ return -EINVAL;
+ }
+ features = le64_to_cpu(sbp->s_feature_compat_ro) &
+ ~NILFS_FEATURE_COMPAT_RO_SUPP;
+ if (!(sb->s_flags & MS_RDONLY) && features) {
+ printk(KERN_ERR "NILFS: couldn't mount RDWR because of "
+ "unsupported optional features (%llx)\n",
+ (unsigned long long)features);
+ return -EINVAL;
+ }
+ return 0;
}
/**
@@ -819,7 +960,6 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent,
static int nilfs_remount(struct super_block *sb, int *flags, char *data)
{
struct nilfs_sb_info *sbi = NILFS_SB(sb);
- struct nilfs_super_block *sbp;
struct the_nilfs *nilfs = sbi->s_nilfs;
unsigned long old_sb_flags;
struct nilfs_mount_options old_opts;
@@ -833,32 +973,17 @@ static int nilfs_remount(struct super_block *sb, int *flags, char *data)
old_opts.snapshot_cno = sbi->s_snapshot_cno;
was_snapshot = nilfs_test_opt(sbi, SNAPSHOT);
- if (!parse_options(data, sb)) {
+ if (!parse_options(data, sb, 1)) {
err = -EINVAL;
goto restore_opts;
}
sb->s_flags = (sb->s_flags & ~MS_POSIXACL);
err = -EINVAL;
- if (was_snapshot) {
- if (!(*flags & MS_RDONLY)) {
- printk(KERN_ERR "NILFS (device %s): cannot remount "
- "snapshot read/write.\n",
- sb->s_id);
- goto restore_opts;
- } else if (sbi->s_snapshot_cno != old_opts.snapshot_cno) {
- printk(KERN_ERR "NILFS (device %s): cannot "
- "remount to a different snapshot.\n",
- sb->s_id);
- goto restore_opts;
- }
- } else {
- if (nilfs_test_opt(sbi, SNAPSHOT)) {
- printk(KERN_ERR "NILFS (device %s): cannot change "
- "a regular mount to a snapshot.\n",
- sb->s_id);
- goto restore_opts;
- }
+ if (was_snapshot && !(*flags & MS_RDONLY)) {
+ printk(KERN_ERR "NILFS (device %s): cannot remount snapshot "
+ "read/write.\n", sb->s_id);
+ goto restore_opts;
}
if (!nilfs_valid_fs(nilfs)) {
@@ -880,19 +1005,29 @@ static int nilfs_remount(struct super_block *sb, int *flags, char *data)
* the RDONLY flag and then mark the partition as valid again.
*/
down_write(&nilfs->ns_sem);
- sbp = nilfs->ns_sbp[0];
- if (!(sbp->s_state & le16_to_cpu(NILFS_VALID_FS)) &&
- (nilfs->ns_mount_state & NILFS_VALID_FS))
- sbp->s_state = cpu_to_le16(nilfs->ns_mount_state);
- sbp->s_mtime = cpu_to_le64(get_seconds());
- nilfs_commit_super(sbi, 1);
+ nilfs_cleanup_super(sbi);
up_write(&nilfs->ns_sem);
} else {
+ __u64 features;
+
/*
* Mounting a RDONLY partition read-write, so reread and
* store the current valid flag. (It may have been changed
* by fsck since we originally mounted the partition.)
*/
+ down_read(&nilfs->ns_sem);
+ features = le64_to_cpu(nilfs->ns_sbp[0]->s_feature_compat_ro) &
+ ~NILFS_FEATURE_COMPAT_RO_SUPP;
+ up_read(&nilfs->ns_sem);
+ if (features) {
+ printk(KERN_WARNING "NILFS (device %s): couldn't "
+ "remount RDWR because of unsupported optional "
+ "features (%llx)\n",
+ sb->s_id, (unsigned long long)features);
+ err = -EROFS;
+ goto restore_opts;
+ }
+
sb->s_flags &= ~MS_RDONLY;
err = nilfs_attach_segment_constructor(sbi);
@@ -1119,7 +1254,7 @@ static void nilfs_inode_init_once(void *obj)
init_rwsem(&ii->xattr_sem);
#endif
nilfs_btnode_cache_init_once(&ii->i_btnode_cache);
- ii->i_bmap = (struct nilfs_bmap *)&ii->i_bmap_union;
+ ii->i_bmap = &ii->i_bmap_data;
inode_init_once(&ii->vfs_inode);
}
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 8c10973..37de1f0 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -38,6 +38,8 @@
static LIST_HEAD(nilfs_objects);
static DEFINE_SPINLOCK(nilfs_lock);
+static int nilfs_valid_sb(struct nilfs_super_block *sbp);
+
void nilfs_set_last_segment(struct the_nilfs *nilfs,
sector_t start_blocknr, u64 seq, __u64 cno)
{
@@ -45,6 +47,16 @@ void nilfs_set_last_segment(struct the_nilfs *nilfs,
nilfs->ns_last_pseg = start_blocknr;
nilfs->ns_last_seq = seq;
nilfs->ns_last_cno = cno;
+
+ if (!nilfs_sb_dirty(nilfs)) {
+ if (nilfs->ns_prev_seq == nilfs->ns_last_seq)
+ goto stay_cursor;
+
+ set_nilfs_sb_dirty(nilfs);
+ }
+ nilfs->ns_prev_seq = nilfs->ns_last_seq;
+
+ stay_cursor:
spin_unlock(&nilfs->ns_last_segment_lock);
}
@@ -159,8 +171,7 @@ void put_nilfs(struct the_nilfs *nilfs)
kfree(nilfs);
}
-static int nilfs_load_super_root(struct the_nilfs *nilfs,
- struct nilfs_sb_info *sbi, sector_t sr_block)
+static int nilfs_load_super_root(struct the_nilfs *nilfs, sector_t sr_block)
{
struct buffer_head *bh_sr;
struct nilfs_super_root *raw_sr;
@@ -169,7 +180,7 @@ static int nilfs_load_super_root(struct the_nilfs *nilfs,
unsigned inode_size;
int err;
- err = nilfs_read_super_root_block(sbi->s_super, sr_block, &bh_sr, 1);
+ err = nilfs_read_super_root_block(nilfs, sr_block, &bh_sr, 1);
if (unlikely(err))
return err;
@@ -248,6 +259,37 @@ static void nilfs_clear_recovery_info(struct nilfs_recovery_info *ri)
}
/**
+ * nilfs_store_log_cursor - load log cursor from a super block
+ * @nilfs: nilfs object
+ * @sbp: buffer storing super block to be read
+ *
+ * nilfs_store_log_cursor() reads the last position of the log
+ * containing a super root from a given super block, and initializes
+ * relevant information on the nilfs object preparatory for log
+ * scanning and recovery.
+ */
+static int nilfs_store_log_cursor(struct the_nilfs *nilfs,
+ struct nilfs_super_block *sbp)
+{
+ int ret = 0;
+
+ nilfs->ns_last_pseg = le64_to_cpu(sbp->s_last_pseg);
+ nilfs->ns_last_cno = le64_to_cpu(sbp->s_last_cno);
+ nilfs->ns_last_seq = le64_to_cpu(sbp->s_last_seq);
+
+ nilfs->ns_prev_seq = nilfs->ns_last_seq;
+ nilfs->ns_seg_seq = nilfs->ns_last_seq;
+ nilfs->ns_segnum =
+ nilfs_get_segnum_of_block(nilfs, nilfs->ns_last_pseg);
+ nilfs->ns_cno = nilfs->ns_last_cno + 1;
+ if (nilfs->ns_segnum >= nilfs->ns_nsegments) {
+ printk(KERN_ERR "NILFS invalid last segment number.\n");
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/**
* load_nilfs - load and recover the nilfs
* @nilfs: the_nilfs structure to be released
* @sbi: nilfs_sb_info used to recover past segment
@@ -285,13 +327,55 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
nilfs_init_recovery_info(&ri);
- err = nilfs_search_super_root(nilfs, sbi, &ri);
+ err = nilfs_search_super_root(nilfs, &ri);
if (unlikely(err)) {
- printk(KERN_ERR "NILFS: error searching super root.\n");
- goto failed;
+ struct nilfs_super_block **sbp = nilfs->ns_sbp;
+ int blocksize;
+
+ if (err != -EINVAL)
+ goto scan_error;
+
+ if (!nilfs_valid_sb(sbp[1])) {
+ printk(KERN_WARNING
+ "NILFS warning: unable to fall back to spare"
+ "super block\n");
+ goto scan_error;
+ }
+ printk(KERN_INFO
+ "NILFS: try rollback from an earlier position\n");
+
+ /*
+ * restore super block with its spare and reconfigure
+ * relevant states of the nilfs object.
+ */
+ memcpy(sbp[0], sbp[1], nilfs->ns_sbsize);
+ nilfs->ns_crc_seed = le32_to_cpu(sbp[0]->s_crc_seed);
+ nilfs->ns_sbwtime = le64_to_cpu(sbp[0]->s_wtime);
+
+ /* verify consistency between two super blocks */
+ blocksize = BLOCK_SIZE << le32_to_cpu(sbp[0]->s_log_block_size);
+ if (blocksize != nilfs->ns_blocksize) {
+ printk(KERN_WARNING
+ "NILFS warning: blocksize differs between "
+ "two super blocks (%d != %d)\n",
+ blocksize, nilfs->ns_blocksize);
+ goto scan_error;
+ }
+
+ err = nilfs_store_log_cursor(nilfs, sbp[0]);
+ if (err)
+ goto scan_error;
+
+ /* drop clean flag to allow roll-forward and recovery */
+ nilfs->ns_mount_state &= ~NILFS_VALID_FS;
+ valid_fs = 0;
+
+ err = nilfs_search_super_root(nilfs, &ri);
+ if (err)
+ goto scan_error;
}
- err = nilfs_load_super_root(nilfs, sbi, ri.ri_super_root);
+ err = nilfs_load_super_root(nilfs, ri.ri_super_root);
if (unlikely(err)) {
printk(KERN_ERR "NILFS: error loading super root.\n");
goto failed;
@@ -301,11 +385,23 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
goto skip_recovery;
if (s_flags & MS_RDONLY) {
+ __u64 features;
+
if (nilfs_test_opt(sbi, NORECOVERY)) {
printk(KERN_INFO "NILFS: norecovery option specified. "
"skipping roll-forward recovery\n");
goto skip_recovery;
}
+ features = le64_to_cpu(nilfs->ns_sbp[0]->s_feature_compat_ro) &
+ ~NILFS_FEATURE_COMPAT_RO_SUPP;
+ if (features) {
+ printk(KERN_ERR "NILFS: couldn't proceed with "
+ "recovery because of unsupported optional "
+ "features (%llx)\n",
+ (unsigned long long)features);
+ err = -EROFS;
+ goto failed_unload;
+ }
if (really_read_only) {
printk(KERN_ERR "NILFS: write access "
"unavailable, cannot proceed.\n");
@@ -320,14 +416,13 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
goto failed_unload;
}
- err = nilfs_recover_logical_segments(nilfs, sbi, &ri);
+ err = nilfs_salvage_orphan_logs(nilfs, sbi, &ri);
if (err)
goto failed_unload;
down_write(&nilfs->ns_sem);
- nilfs->ns_mount_state |= NILFS_VALID_FS;
- nilfs->ns_sbp[0]->s_state = cpu_to_le16(nilfs->ns_mount_state);
- err = nilfs_commit_super(sbi, 1);
+ nilfs->ns_mount_state |= NILFS_VALID_FS; /* set "clean" flag */
+ err = nilfs_cleanup_super(sbi);
up_write(&nilfs->ns_sem);
if (err) {
@@ -343,6 +438,10 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
sbi->s_super->s_flags = s_flags;
return 0;
+ scan_error:
+ printk(KERN_ERR "NILFS: error searching super root.\n");
+ goto failed;
+
failed_unload:
nilfs_mdt_destroy(nilfs->ns_cpfile);
nilfs_mdt_destroy(nilfs->ns_sufile);
@@ -515,8 +614,8 @@ static int nilfs_load_super_block(struct the_nilfs *nilfs,
nilfs_swap_super_block(nilfs);
}
- nilfs->ns_sbwtime[0] = le64_to_cpu(sbp[0]->s_wtime);
- nilfs->ns_sbwtime[1] = valid[!swp] ? le64_to_cpu(sbp[1]->s_wtime) : 0;
+ nilfs->ns_sbwcount = 0;
+ nilfs->ns_sbwtime = le64_to_cpu(sbp[0]->s_wtime);
nilfs->ns_prot_seq = le64_to_cpu(sbp[valid[1] & !swp]->s_last_seq);
*sbpp = sbp[0];
return 0;
@@ -557,6 +656,10 @@ int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
if (err)
goto out;
+ err = nilfs_check_feature_compatibility(sb, sbp);
+ if (err)
+ goto out;
+
blocksize = BLOCK_SIZE << le32_to_cpu(sbp->s_log_block_size);
if (sb->s_blocksize != blocksize &&
!sb_set_blocksize(sb, blocksize)) {
@@ -568,7 +671,7 @@ int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
goto out;
}
- blocksize = sb_min_blocksize(sb, BLOCK_SIZE);
+ blocksize = sb_min_blocksize(sb, NILFS_MIN_BLOCK_SIZE);
if (!blocksize) {
printk(KERN_ERR "NILFS: unable to set blocksize\n");
err = -EINVAL;
@@ -582,7 +685,18 @@ int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
if (err)
goto failed_sbh;
+ err = nilfs_check_feature_compatibility(sb, sbp);
+ if (err)
+ goto failed_sbh;
+
blocksize = BLOCK_SIZE << le32_to_cpu(sbp->s_log_block_size);
+ if (blocksize < NILFS_MIN_BLOCK_SIZE ||
+ blocksize > NILFS_MAX_BLOCK_SIZE) {
+ printk(KERN_ERR "NILFS: couldn't mount because of unsupported "
+ "filesystem blocksize %d\n", blocksize);
+ err = -EINVAL;
+ goto failed_sbh;
+ }
if (sb->s_blocksize != blocksize) {
int hw_blocksize = bdev_logical_block_size(sb->s_bdev);
@@ -604,6 +718,7 @@ int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
when reloading fails. */
}
nilfs->ns_blocksize_bits = sb->s_blocksize_bits;
+ nilfs->ns_blocksize = blocksize;
err = nilfs_store_disk_layout(nilfs, sbp);
if (err)
@@ -616,23 +731,9 @@ int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
bdi = nilfs->ns_bdev->bd_inode->i_mapping->backing_dev_info;
nilfs->ns_bdi = bdi ? : &default_backing_dev_info;
- /* Finding last segment */
- nilfs->ns_last_pseg = le64_to_cpu(sbp->s_last_pseg);
- nilfs->ns_last_cno = le64_to_cpu(sbp->s_last_cno);
- nilfs->ns_last_seq = le64_to_cpu(sbp->s_last_seq);
-
- nilfs->ns_seg_seq = nilfs->ns_last_seq;
- nilfs->ns_segnum =
- nilfs_get_segnum_of_block(nilfs, nilfs->ns_last_pseg);
- nilfs->ns_cno = nilfs->ns_last_cno + 1;
- if (nilfs->ns_segnum >= nilfs->ns_nsegments) {
- printk(KERN_ERR "NILFS invalid last segment number.\n");
- err = -EINVAL;
+ err = nilfs_store_log_cursor(nilfs, sbp);
+ if (err)
goto failed_sbh;
- }
- /* Dummy values */
- nilfs->ns_free_segments_count =
- nilfs->ns_nsegments - (nilfs->ns_segnum + 1);
/* Initialize gcinode cache */
err = nilfs_init_gccache(nilfs);
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index 1ab9745..f785a7b 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -57,7 +57,8 @@ enum {
* @ns_current: back pointer to current mount
* @ns_sbh: buffer heads of on-disk super blocks
* @ns_sbp: pointers to super block data
- * @ns_sbwtime: previous write time of super blocks
+ * @ns_sbwtime: previous write time of super block
+ * @ns_sbwcount: write count of super block
* @ns_sbsize: size of valid data in super block
* @ns_supers: list of nilfs super block structs
* @ns_seg_seq: segment sequence counter
@@ -73,7 +74,7 @@ enum {
* @ns_last_seq: sequence value of the latest segment
* @ns_last_cno: checkpoint number of the latest segment
* @ns_prot_seq: least sequence number of segments which must not be reclaimed
- * @ns_free_segments_count: counter of free segments
+ * @ns_prev_seq: base sequence number used to decide if advance log cursor
* @ns_segctor_sem: segment constructor semaphore
* @ns_dat: DAT file inode
* @ns_cpfile: checkpoint file inode
@@ -82,6 +83,7 @@ enum {
* @ns_gc_inodes: dummy inodes to keep live blocks
* @ns_gc_inodes_h: hash list to keep dummy inode holding live blocks
* @ns_blocksize_bits: bit length of block size
+ * @ns_blocksize: block size
* @ns_nsegments: number of segments in filesystem
* @ns_blocks_per_segment: number of blocks per segment
* @ns_r_segments_percentage: reserved segments percentage
@@ -119,7 +121,8 @@ struct the_nilfs {
*/
struct buffer_head *ns_sbh[2];
struct nilfs_super_block *ns_sbp[2];
- time_t ns_sbwtime[2];
+ time_t ns_sbwtime;
+ unsigned ns_sbwcount;
unsigned ns_sbsize;
unsigned ns_mount_state;
@@ -149,7 +152,7 @@ struct the_nilfs {
u64 ns_last_seq;
__u64 ns_last_cno;
u64 ns_prot_seq;
- unsigned long ns_free_segments_count;
+ u64 ns_prev_seq;
struct rw_semaphore ns_segctor_sem;
@@ -168,6 +171,7 @@ struct the_nilfs {
/* Disk layout information (static) */
unsigned int ns_blocksize_bits;
+ unsigned int ns_blocksize;
unsigned long ns_nsegments;
unsigned long ns_blocks_per_segment;
unsigned long ns_r_segments_percentage;
@@ -203,20 +207,17 @@ THE_NILFS_FNS(SB_DIRTY, sb_dirty)
/* Minimum interval of periodical update of superblocks (in seconds) */
#define NILFS_SB_FREQ 10
-#define NILFS_ALTSB_FREQ 60 /* spare superblock */
static inline int nilfs_sb_need_update(struct the_nilfs *nilfs)
{
u64 t = get_seconds();
- return t < nilfs->ns_sbwtime[0] ||
- t > nilfs->ns_sbwtime[0] + NILFS_SB_FREQ;
+ return t < nilfs->ns_sbwtime || t > nilfs->ns_sbwtime + NILFS_SB_FREQ;
}
-static inline int nilfs_altsb_need_update(struct the_nilfs *nilfs)
+static inline int nilfs_sb_will_flip(struct the_nilfs *nilfs)
{
- u64 t = get_seconds();
- struct nilfs_super_block **sbp = nilfs->ns_sbp;
- return sbp[1] && t > nilfs->ns_sbwtime[1] + NILFS_ALTSB_FREQ;
+ int flip_bits = nilfs->ns_sbwcount & 0x0FL;
+ return (flip_bits != 0x08 && flip_bits != 0x0F);
}
void nilfs_set_last_segment(struct the_nilfs *, sector_t, u64, __u64);
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 3623ca2..96337a4 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -196,15 +196,14 @@ int ocfs2_get_block(struct inode *inode, sector_t iblock,
dump_stack();
goto bail;
}
-
- past_eof = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode));
- mlog(0, "Inode %lu, past_eof = %llu\n", inode->i_ino,
- (unsigned long long)past_eof);
-
- if (create && (iblock >= past_eof))
- set_buffer_new(bh_result);
}
+ past_eof = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode));
+ mlog(0, "Inode %lu, past_eof = %llu\n", inode->i_ino,
+ (unsigned long long)past_eof);
+ if (create && (iblock >= past_eof))
+ set_buffer_new(bh_result);
+
bail:
if (err < 0)
err = -EIO;
@@ -459,36 +458,6 @@ int walk_page_buffers( handle_t *handle,
return ret;
}
-handle_t *ocfs2_start_walk_page_trans(struct inode *inode,
- struct page *page,
- unsigned from,
- unsigned to)
-{
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- handle_t *handle;
- int ret = 0;
-
- handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
- if (IS_ERR(handle)) {
- ret = -ENOMEM;
- mlog_errno(ret);
- goto out;
- }
-
- if (ocfs2_should_order_data(inode)) {
- ret = ocfs2_jbd2_file_inode(handle, inode);
- if (ret < 0)
- mlog_errno(ret);
- }
-out:
- if (ret) {
- if (!IS_ERR(handle))
- ocfs2_commit_trans(osb, handle);
- handle = ERR_PTR(ret);
- }
- return handle;
-}
-
static sector_t ocfs2_bmap(struct address_space *mapping, sector_t block)
{
sector_t status;
@@ -609,7 +578,9 @@ bail:
static void ocfs2_dio_end_io(struct kiocb *iocb,
loff_t offset,
ssize_t bytes,
- void *private)
+ void *private,
+ int ret,
+ bool is_async)
{
struct inode *inode = iocb->ki_filp->f_path.dentry->d_inode;
int level;
@@ -623,6 +594,9 @@ static void ocfs2_dio_end_io(struct kiocb *iocb,
if (!level)
up_read(&inode->i_alloc_sem);
ocfs2_rw_unlock(inode, level);
+
+ if (is_async)
+ aio_complete(iocb, ret, 0);
}
/*
@@ -1131,23 +1105,37 @@ out:
*/
static int ocfs2_grab_pages_for_write(struct address_space *mapping,
struct ocfs2_write_ctxt *wc,
- u32 cpos, loff_t user_pos, int new,
+ u32 cpos, loff_t user_pos,
+ unsigned user_len, int new,
struct page *mmap_page)
{
int ret = 0, i;
- unsigned long start, target_index, index;
+ unsigned long start, target_index, end_index, index;
struct inode *inode = mapping->host;
+ loff_t last_byte;
target_index = user_pos >> PAGE_CACHE_SHIFT;
/*
* Figure out how many pages we'll be manipulating here. For
* non allocating write, we just change the one
- * page. Otherwise, we'll need a whole clusters worth.
+ * page. Otherwise, we'll need a whole clusters worth. If we're
+ * writing past i_size, we only need enough pages to cover the
+ * last page of the write.
*/
if (new) {
wc->w_num_pages = ocfs2_pages_per_cluster(inode->i_sb);
start = ocfs2_align_clusters_to_page_index(inode->i_sb, cpos);
+ /*
+ * We need the index *past* the last page we could possibly
+ * touch. This is the page past the end of the write or
+ * i_size, whichever is greater.
+ */
+ last_byte = max(user_pos + user_len, i_size_read(inode));
+ BUG_ON(last_byte < 1);
+ end_index = ((last_byte - 1) >> PAGE_CACHE_SHIFT) + 1;
+ if ((start + wc->w_num_pages) > end_index)
+ wc->w_num_pages = end_index - start;
} else {
wc->w_num_pages = 1;
start = target_index;
@@ -1620,21 +1608,20 @@ out:
* write path can treat it as an non-allocating write, which has no
* special case code for sparse/nonsparse files.
*/
-static int ocfs2_expand_nonsparse_inode(struct inode *inode, loff_t pos,
- unsigned len,
+static int ocfs2_expand_nonsparse_inode(struct inode *inode,
+ struct buffer_head *di_bh,
+ loff_t pos, unsigned len,
struct ocfs2_write_ctxt *wc)
{
int ret;
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
loff_t newsize = pos + len;
- if (ocfs2_sparse_alloc(osb))
- return 0;
+ BUG_ON(ocfs2_sparse_alloc(OCFS2_SB(inode->i_sb)));
if (newsize <= i_size_read(inode))
return 0;
- ret = ocfs2_extend_no_holes(inode, newsize, pos);
+ ret = ocfs2_extend_no_holes(inode, di_bh, newsize, pos);
if (ret)
mlog_errno(ret);
@@ -1644,6 +1631,18 @@ static int ocfs2_expand_nonsparse_inode(struct inode *inode, loff_t pos,
return ret;
}
+static int ocfs2_zero_tail(struct inode *inode, struct buffer_head *di_bh,
+ loff_t pos)
+{
+ int ret = 0;
+
+ BUG_ON(!ocfs2_sparse_alloc(OCFS2_SB(inode->i_sb)));
+ if (pos > i_size_read(inode))
+ ret = ocfs2_zero_extend(inode, di_bh, pos);
+
+ return ret;
+}
+
int ocfs2_write_begin_nolock(struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata,
@@ -1679,7 +1678,11 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
}
}
- ret = ocfs2_expand_nonsparse_inode(inode, pos, len, wc);
+ if (ocfs2_sparse_alloc(osb))
+ ret = ocfs2_zero_tail(inode, di_bh, pos);
+ else
+ ret = ocfs2_expand_nonsparse_inode(inode, di_bh, pos, len,
+ wc);
if (ret) {
mlog_errno(ret);
goto out;
@@ -1789,7 +1792,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
* that we can zero and flush if we error after adding the
* extent.
*/
- ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos,
+ ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos, len,
cluster_of_pages, mmap_page);
if (ret) {
mlog_errno(ret);
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index 0cd24cf..5efdd37 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -419,7 +419,7 @@ static loff_t debug_buffer_llseek(struct file *file, loff_t off, int whence)
static int debug_buffer_release(struct inode *inode, struct file *file)
{
- struct debug_buffer *db = (struct debug_buffer *)file->private_data;
+ struct debug_buffer *db = file->private_data;
if (db)
kfree(db->buf);
@@ -715,7 +715,7 @@ static int debug_lockres_open(struct inode *inode, struct file *file)
goto bail;
}
- seq = (struct seq_file *) file->private_data;
+ seq = file->private_data;
seq->private = dl;
dlm_grab(dlm);
@@ -731,7 +731,7 @@ bail:
static int debug_lockres_release(struct inode *inode, struct file *file)
{
- struct seq_file *seq = (struct seq_file *)file->private_data;
+ struct seq_file *seq = file->private_data;
struct debug_lockres *dl = (struct debug_lockres *)seq->private;
if (dl->dl_res)
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 6b5a492..153abb5 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -1671,7 +1671,7 @@ struct dlm_ctxt * dlm_register_domain(const char *domain,
struct dlm_ctxt *dlm = NULL;
struct dlm_ctxt *new_ctxt = NULL;
- if (strlen(domain) > O2NM_MAX_NAME_LEN) {
+ if (strlen(domain) >= O2NM_MAX_NAME_LEN) {
ret = -ENAMETOOLONG;
mlog(ML_ERROR, "domain name length too long\n");
goto leave;
@@ -1709,6 +1709,7 @@ retry:
}
if (dlm_protocol_compare(&dlm->fs_locking_proto, fs_proto)) {
+ spin_unlock(&dlm_domain_lock);
mlog(ML_ERROR,
"Requested locking protocol version is not "
"compatible with already registered domain "
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 4a7506a..94b97fc 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -2808,14 +2808,8 @@ again:
mlog(0, "trying again...\n");
goto again;
}
- /* now that we are sure the MIGRATING state is there, drop
- * the unneded state which blocked threads trying to DIRTY */
- spin_lock(&res->spinlock);
- BUG_ON(!(res->state & DLM_LOCK_RES_BLOCK_DIRTY));
- BUG_ON(!(res->state & DLM_LOCK_RES_MIGRATING));
- res->state &= ~DLM_LOCK_RES_BLOCK_DIRTY;
- spin_unlock(&res->spinlock);
+ ret = 0;
/* did the target go down or die? */
spin_lock(&dlm->spinlock);
if (!test_bit(target, dlm->domain_map)) {
@@ -2826,9 +2820,21 @@ again:
spin_unlock(&dlm->spinlock);
/*
+ * if target is down, we need to clear DLM_LOCK_RES_BLOCK_DIRTY for
+ * another try; otherwise, we are sure the MIGRATING state is there,
+ * drop the unneded state which blocked threads trying to DIRTY
+ */
+ spin_lock(&res->spinlock);
+ BUG_ON(!(res->state & DLM_LOCK_RES_BLOCK_DIRTY));
+ res->state &= ~DLM_LOCK_RES_BLOCK_DIRTY;
+ if (!ret)
+ BUG_ON(!(res->state & DLM_LOCK_RES_MIGRATING));
+ spin_unlock(&res->spinlock);
+
+ /*
* at this point:
*
- * o the DLM_LOCK_RES_MIGRATING flag is set
+ * o the DLM_LOCK_RES_MIGRATING flag is set if target not down
* o there are no pending asts on this lockres
* o all processes trying to reserve an ast on this
* lockres must wait for the MIGRATING flag to clear
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index f8b75ce..9dfaac7 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -463,7 +463,7 @@ static int dlm_do_recovery(struct dlm_ctxt *dlm)
if (dlm->reco.dead_node == O2NM_INVALID_NODE_NUM) {
int bit;
- bit = find_next_bit (dlm->recovery_map, O2NM_MAX_NODES+1, 0);
+ bit = find_next_bit (dlm->recovery_map, O2NM_MAX_NODES, 0);
if (bit >= O2NM_MAX_NODES || bit < 0)
dlm_set_reco_dead_node(dlm, O2NM_INVALID_NODE_NUM);
else
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index b83d610..bef34d0 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -182,8 +182,7 @@ static int dlmfs_file_release(struct inode *inode,
{
int level, status;
struct dlmfs_inode_private *ip = DLMFS_I(inode);
- struct dlmfs_filp_private *fp =
- (struct dlmfs_filp_private *) file->private_data;
+ struct dlmfs_filp_private *fp = file->private_data;
if (S_ISDIR(inode->i_mode))
BUG();
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 39eb16a..5e02a89 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -2966,7 +2966,7 @@ static const struct seq_operations ocfs2_dlm_seq_ops = {
static int ocfs2_dlm_debug_release(struct inode *inode, struct file *file)
{
- struct seq_file *seq = (struct seq_file *) file->private_data;
+ struct seq_file *seq = file->private_data;
struct ocfs2_dlm_seq_priv *priv = seq->private;
struct ocfs2_lock_res *res = &priv->p_iter_res;
@@ -3000,7 +3000,7 @@ static int ocfs2_dlm_debug_open(struct inode *inode, struct file *file)
goto out;
}
- seq = (struct seq_file *) file->private_data;
+ seq = file->private_data;
seq->private = priv;
ocfs2_add_lockres_tracking(&priv->p_iter_res,
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 6a13ea6..2b10b36 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -724,28 +724,55 @@ leave:
return status;
}
+/*
+ * While a write will already be ordering the data, a truncate will not.
+ * Thus, we need to explicitly order the zeroed pages.
+ */
+static handle_t *ocfs2_zero_start_ordered_transaction(struct inode *inode)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ handle_t *handle = NULL;
+ int ret = 0;
+
+ if (!ocfs2_should_order_data(inode))
+ goto out;
+
+ handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
+ if (IS_ERR(handle)) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_jbd2_file_inode(handle, inode);
+ if (ret < 0)
+ mlog_errno(ret);
+
+out:
+ if (ret) {
+ if (!IS_ERR(handle))
+ ocfs2_commit_trans(osb, handle);
+ handle = ERR_PTR(ret);
+ }
+ return handle;
+}
+
/* Some parts of this taken from generic_cont_expand, which turned out
* to be too fragile to do exactly what we need without us having to
* worry about recursive locking in ->write_begin() and ->write_end(). */
-static int ocfs2_write_zero_page(struct inode *inode,
- u64 size)
+static int ocfs2_write_zero_page(struct inode *inode, u64 abs_from,
+ u64 abs_to)
{
struct address_space *mapping = inode->i_mapping;
struct page *page;
- unsigned long index;
- unsigned int offset;
+ unsigned long index = abs_from >> PAGE_CACHE_SHIFT;
handle_t *handle = NULL;
- int ret;
+ int ret = 0;
+ unsigned zero_from, zero_to, block_start, block_end;
- offset = (size & (PAGE_CACHE_SIZE-1)); /* Within page */
- /* ugh. in prepare/commit_write, if from==to==start of block, we
- ** skip the prepare. make sure we never send an offset for the start
- ** of a block
- */
- if ((offset & (inode->i_sb->s_blocksize - 1)) == 0) {
- offset++;
- }
- index = size >> PAGE_CACHE_SHIFT;
+ BUG_ON(abs_from >= abs_to);
+ BUG_ON(abs_to > (((u64)index + 1) << PAGE_CACHE_SHIFT));
+ BUG_ON(abs_from & (inode->i_blkbits - 1));
page = grab_cache_page(mapping, index);
if (!page) {
@@ -754,31 +781,56 @@ static int ocfs2_write_zero_page(struct inode *inode,
goto out;
}
- ret = ocfs2_prepare_write_nolock(inode, page, offset, offset);
- if (ret < 0) {
- mlog_errno(ret);
- goto out_unlock;
- }
+ /* Get the offsets within the page that we want to zero */
+ zero_from = abs_from & (PAGE_CACHE_SIZE - 1);
+ zero_to = abs_to & (PAGE_CACHE_SIZE - 1);
+ if (!zero_to)
+ zero_to = PAGE_CACHE_SIZE;
- if (ocfs2_should_order_data(inode)) {
- handle = ocfs2_start_walk_page_trans(inode, page, offset,
- offset);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- handle = NULL;
+ mlog(0,
+ "abs_from = %llu, abs_to = %llu, index = %lu, zero_from = %u, zero_to = %u\n",
+ (unsigned long long)abs_from, (unsigned long long)abs_to,
+ index, zero_from, zero_to);
+
+ /* We know that zero_from is block aligned */
+ for (block_start = zero_from; block_start < zero_to;
+ block_start = block_end) {
+ block_end = block_start + (1 << inode->i_blkbits);
+
+ /*
+ * block_start is block-aligned. Bump it by one to
+ * force ocfs2_{prepare,commit}_write() to zero the
+ * whole block.
+ */
+ ret = ocfs2_prepare_write_nolock(inode, page,
+ block_start + 1,
+ block_start + 1);
+ if (ret < 0) {
+ mlog_errno(ret);
goto out_unlock;
}
- }
- /* must not update i_size! */
- ret = block_commit_write(page, offset, offset);
- if (ret < 0)
- mlog_errno(ret);
- else
- ret = 0;
+ if (!handle) {
+ handle = ocfs2_zero_start_ordered_transaction(inode);
+ if (IS_ERR(handle)) {
+ ret = PTR_ERR(handle);
+ handle = NULL;
+ break;
+ }
+ }
+
+ /* must not update i_size! */
+ ret = block_commit_write(page, block_start + 1,
+ block_start + 1);
+ if (ret < 0)
+ mlog_errno(ret);
+ else
+ ret = 0;
+ }
if (handle)
ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
+
out_unlock:
unlock_page(page);
page_cache_release(page);
@@ -786,22 +838,114 @@ out:
return ret;
}
-static int ocfs2_zero_extend(struct inode *inode,
- u64 zero_to_size)
+/*
+ * Find the next range to zero. We do this in terms of bytes because
+ * that's what ocfs2_zero_extend() wants, and it is dealing with the
+ * pagecache. We may return multiple extents.
+ *
+ * zero_start and zero_end are ocfs2_zero_extend()s current idea of what
+ * needs to be zeroed. range_start and range_end return the next zeroing
+ * range. A subsequent call should pass the previous range_end as its
+ * zero_start. If range_end is 0, there's nothing to do.
+ *
+ * Unwritten extents are skipped over. Refcounted extents are CoWd.
+ */
+static int ocfs2_zero_extend_get_range(struct inode *inode,
+ struct buffer_head *di_bh,
+ u64 zero_start, u64 zero_end,
+ u64 *range_start, u64 *range_end)
{
- int ret = 0;
- u64 start_off;
- struct super_block *sb = inode->i_sb;
+ int rc = 0, needs_cow = 0;
+ u32 p_cpos, zero_clusters = 0;
+ u32 zero_cpos =
+ zero_start >> OCFS2_SB(inode->i_sb)->s_clustersize_bits;
+ u32 last_cpos = ocfs2_clusters_for_bytes(inode->i_sb, zero_end);
+ unsigned int num_clusters = 0;
+ unsigned int ext_flags = 0;
- start_off = ocfs2_align_bytes_to_blocks(sb, i_size_read(inode));
- while (start_off < zero_to_size) {
- ret = ocfs2_write_zero_page(inode, start_off);
- if (ret < 0) {
- mlog_errno(ret);
+ while (zero_cpos < last_cpos) {
+ rc = ocfs2_get_clusters(inode, zero_cpos, &p_cpos,
+ &num_clusters, &ext_flags);
+ if (rc) {
+ mlog_errno(rc);
+ goto out;
+ }
+
+ if (p_cpos && !(ext_flags & OCFS2_EXT_UNWRITTEN)) {
+ zero_clusters = num_clusters;
+ if (ext_flags & OCFS2_EXT_REFCOUNTED)
+ needs_cow = 1;
+ break;
+ }
+
+ zero_cpos += num_clusters;
+ }
+ if (!zero_clusters) {
+ *range_end = 0;
+ goto out;
+ }
+
+ while ((zero_cpos + zero_clusters) < last_cpos) {
+ rc = ocfs2_get_clusters(inode, zero_cpos + zero_clusters,
+ &p_cpos, &num_clusters,
+ &ext_flags);
+ if (rc) {
+ mlog_errno(rc);
goto out;
}
- start_off += sb->s_blocksize;
+ if (!p_cpos || (ext_flags & OCFS2_EXT_UNWRITTEN))
+ break;
+ if (ext_flags & OCFS2_EXT_REFCOUNTED)
+ needs_cow = 1;
+ zero_clusters += num_clusters;
+ }
+ if ((zero_cpos + zero_clusters) > last_cpos)
+ zero_clusters = last_cpos - zero_cpos;
+
+ if (needs_cow) {
+ rc = ocfs2_refcount_cow(inode, di_bh, zero_cpos, zero_clusters,
+ UINT_MAX);
+ if (rc) {
+ mlog_errno(rc);
+ goto out;
+ }
+ }
+
+ *range_start = ocfs2_clusters_to_bytes(inode->i_sb, zero_cpos);
+ *range_end = ocfs2_clusters_to_bytes(inode->i_sb,
+ zero_cpos + zero_clusters);
+
+out:
+ return rc;
+}
+
+/*
+ * Zero one range returned from ocfs2_zero_extend_get_range(). The caller
+ * has made sure that the entire range needs zeroing.
+ */
+static int ocfs2_zero_extend_range(struct inode *inode, u64 range_start,
+ u64 range_end)
+{
+ int rc = 0;
+ u64 next_pos;
+ u64 zero_pos = range_start;
+
+ mlog(0, "range_start = %llu, range_end = %llu\n",
+ (unsigned long long)range_start,
+ (unsigned long long)range_end);
+ BUG_ON(range_start >= range_end);
+
+ while (zero_pos < range_end) {
+ next_pos = (zero_pos & PAGE_CACHE_MASK) + PAGE_CACHE_SIZE;
+ if (next_pos > range_end)
+ next_pos = range_end;
+ rc = ocfs2_write_zero_page(inode, zero_pos, next_pos);
+ if (rc < 0) {
+ mlog_errno(rc);
+ break;
+ }
+ zero_pos = next_pos;
/*
* Very large extends have the potential to lock up
@@ -810,16 +954,63 @@ static int ocfs2_zero_extend(struct inode *inode,
cond_resched();
}
-out:
+ return rc;
+}
+
+int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
+ loff_t zero_to_size)
+{
+ int ret = 0;
+ u64 zero_start, range_start = 0, range_end = 0;
+ struct super_block *sb = inode->i_sb;
+
+ zero_start = ocfs2_align_bytes_to_blocks(sb, i_size_read(inode));
+ mlog(0, "zero_start %llu for i_size %llu\n",
+ (unsigned long long)zero_start,
+ (unsigned long long)i_size_read(inode));
+ while (zero_start < zero_to_size) {
+ ret = ocfs2_zero_extend_get_range(inode, di_bh, zero_start,
+ zero_to_size,
+ &range_start,
+ &range_end);
+ if (ret) {
+ mlog_errno(ret);
+ break;
+ }
+ if (!range_end)
+ break;
+ /* Trim the ends */
+ if (range_start < zero_start)
+ range_start = zero_start;
+ if (range_end > zero_to_size)
+ range_end = zero_to_size;
+
+ ret = ocfs2_zero_extend_range(inode, range_start,
+ range_end);
+ if (ret) {
+ mlog_errno(ret);
+ break;
+ }
+ zero_start = range_end;
+ }
+
return ret;
}
-int ocfs2_extend_no_holes(struct inode *inode, u64 new_i_size, u64 zero_to)
+int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,
+ u64 new_i_size, u64 zero_to)
{
int ret;
u32 clusters_to_add;
struct ocfs2_inode_info *oi = OCFS2_I(inode);
+ /*
+ * Only quota files call this without a bh, and they can't be
+ * refcounted.
+ */
+ BUG_ON(!di_bh && (oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL));
+ BUG_ON(!di_bh && !(oi->ip_flags & OCFS2_INODE_SYSTEM_FILE));
+
clusters_to_add = ocfs2_clusters_for_bytes(inode->i_sb, new_i_size);
if (clusters_to_add < oi->ip_clusters)
clusters_to_add = 0;
@@ -840,7 +1031,7 @@ int ocfs2_extend_no_holes(struct inode *inode, u64 new_i_size, u64 zero_to)
* still need to zero the area between the old i_size and the
* new i_size.
*/
- ret = ocfs2_zero_extend(inode, zero_to);
+ ret = ocfs2_zero_extend(inode, di_bh, zero_to);
if (ret < 0)
mlog_errno(ret);
@@ -862,27 +1053,15 @@ static int ocfs2_extend_file(struct inode *inode,
goto out;
if (i_size_read(inode) == new_i_size)
- goto out;
+ goto out;
BUG_ON(new_i_size < i_size_read(inode));
/*
- * Fall through for converting inline data, even if the fs
- * supports sparse files.
- *
- * The check for inline data here is legal - nobody can add
- * the feature since we have i_mutex. We must check it again
- * after acquiring ip_alloc_sem though, as paths like mmap
- * might have raced us to converting the inode to extents.
- */
- if (!(oi->ip_dyn_features & OCFS2_INLINE_DATA_FL)
- && ocfs2_sparse_alloc(OCFS2_SB(inode->i_sb)))
- goto out_update_size;
-
- /*
* The alloc sem blocks people in read/write from reading our
* allocation until we're done changing it. We depend on
* i_mutex to block other extend/truncate calls while we're
- * here.
+ * here. We even have to hold it for sparse files because there
+ * might be some tail zeroing.
*/
down_write(&oi->ip_alloc_sem);
@@ -899,14 +1078,16 @@ static int ocfs2_extend_file(struct inode *inode,
ret = ocfs2_convert_inline_data_to_extents(inode, di_bh);
if (ret) {
up_write(&oi->ip_alloc_sem);
-
mlog_errno(ret);
goto out;
}
}
- if (!ocfs2_sparse_alloc(OCFS2_SB(inode->i_sb)))
- ret = ocfs2_extend_no_holes(inode, new_i_size, new_i_size);
+ if (ocfs2_sparse_alloc(OCFS2_SB(inode->i_sb)))
+ ret = ocfs2_zero_extend(inode, di_bh, new_i_size);
+ else
+ ret = ocfs2_extend_no_holes(inode, di_bh, new_i_size,
+ new_i_size);
up_write(&oi->ip_alloc_sem);
diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h
index d66cf4f..97bf761 100644
--- a/fs/ocfs2/file.h
+++ b/fs/ocfs2/file.h
@@ -54,8 +54,10 @@ int ocfs2_add_inode_data(struct ocfs2_super *osb,
int ocfs2_simple_size_update(struct inode *inode,
struct buffer_head *di_bh,
u64 new_i_size);
-int ocfs2_extend_no_holes(struct inode *inode, u64 new_i_size,
- u64 zero_to);
+int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,
+ u64 new_i_size, u64 zero_to);
+int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
+ loff_t zero_to);
int ocfs2_setattr(struct dentry *dentry, struct iattr *attr);
int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry,
struct kstat *stat);
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 47878cf..9b57c03 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -472,7 +472,7 @@ static inline struct ocfs2_triggers *to_ocfs2_trigger(struct jbd2_buffer_trigger
return container_of(triggers, struct ocfs2_triggers, ot_triggers);
}
-static void ocfs2_commit_trigger(struct jbd2_buffer_trigger_type *triggers,
+static void ocfs2_frozen_trigger(struct jbd2_buffer_trigger_type *triggers,
struct buffer_head *bh,
void *data, size_t size)
{
@@ -491,7 +491,7 @@ static void ocfs2_commit_trigger(struct jbd2_buffer_trigger_type *triggers,
* Quota blocks have their own trigger because the struct ocfs2_block_check
* offset depends on the blocksize.
*/
-static void ocfs2_dq_commit_trigger(struct jbd2_buffer_trigger_type *triggers,
+static void ocfs2_dq_frozen_trigger(struct jbd2_buffer_trigger_type *triggers,
struct buffer_head *bh,
void *data, size_t size)
{
@@ -511,7 +511,7 @@ static void ocfs2_dq_commit_trigger(struct jbd2_buffer_trigger_type *triggers,
* Directory blocks also have their own trigger because the
* struct ocfs2_block_check offset depends on the blocksize.
*/
-static void ocfs2_db_commit_trigger(struct jbd2_buffer_trigger_type *triggers,
+static void ocfs2_db_frozen_trigger(struct jbd2_buffer_trigger_type *triggers,
struct buffer_head *bh,
void *data, size_t size)
{
@@ -544,7 +544,7 @@ static void ocfs2_abort_trigger(struct jbd2_buffer_trigger_type *triggers,
static struct ocfs2_triggers di_triggers = {
.ot_triggers = {
- .t_commit = ocfs2_commit_trigger,
+ .t_frozen = ocfs2_frozen_trigger,
.t_abort = ocfs2_abort_trigger,
},
.ot_offset = offsetof(struct ocfs2_dinode, i_check),
@@ -552,7 +552,7 @@ static struct ocfs2_triggers di_triggers = {
static struct ocfs2_triggers eb_triggers = {
.ot_triggers = {
- .t_commit = ocfs2_commit_trigger,
+ .t_frozen = ocfs2_frozen_trigger,
.t_abort = ocfs2_abort_trigger,
},
.ot_offset = offsetof(struct ocfs2_extent_block, h_check),
@@ -560,7 +560,7 @@ static struct ocfs2_triggers eb_triggers = {
static struct ocfs2_triggers rb_triggers = {
.ot_triggers = {
- .t_commit = ocfs2_commit_trigger,
+ .t_frozen = ocfs2_frozen_trigger,
.t_abort = ocfs2_abort_trigger,
},
.ot_offset = offsetof(struct ocfs2_refcount_block, rf_check),
@@ -568,7 +568,7 @@ static struct ocfs2_triggers rb_triggers = {
static struct ocfs2_triggers gd_triggers = {
.ot_triggers = {
- .t_commit = ocfs2_commit_trigger,
+ .t_frozen = ocfs2_frozen_trigger,
.t_abort = ocfs2_abort_trigger,
},
.ot_offset = offsetof(struct ocfs2_group_desc, bg_check),
@@ -576,14 +576,14 @@ static struct ocfs2_triggers gd_triggers = {
static struct ocfs2_triggers db_triggers = {
.ot_triggers = {
- .t_commit = ocfs2_db_commit_trigger,
+ .t_frozen = ocfs2_db_frozen_trigger,
.t_abort = ocfs2_abort_trigger,
},
};
static struct ocfs2_triggers xb_triggers = {
.ot_triggers = {
- .t_commit = ocfs2_commit_trigger,
+ .t_frozen = ocfs2_frozen_trigger,
.t_abort = ocfs2_abort_trigger,
},
.ot_offset = offsetof(struct ocfs2_xattr_block, xb_check),
@@ -591,14 +591,14 @@ static struct ocfs2_triggers xb_triggers = {
static struct ocfs2_triggers dq_triggers = {
.ot_triggers = {
- .t_commit = ocfs2_dq_commit_trigger,
+ .t_frozen = ocfs2_dq_frozen_trigger,
.t_abort = ocfs2_abort_trigger,
},
};
static struct ocfs2_triggers dr_triggers = {
.ot_triggers = {
- .t_commit = ocfs2_commit_trigger,
+ .t_frozen = ocfs2_frozen_trigger,
.t_abort = ocfs2_abort_trigger,
},
.ot_offset = offsetof(struct ocfs2_dx_root_block, dr_check),
@@ -606,7 +606,7 @@ static struct ocfs2_triggers dr_triggers = {
static struct ocfs2_triggers dl_triggers = {
.ot_triggers = {
- .t_commit = ocfs2_commit_trigger,
+ .t_frozen = ocfs2_frozen_trigger,
.t_abort = ocfs2_abort_trigger,
},
.ot_offset = offsetof(struct ocfs2_dx_leaf, dl_check),
@@ -760,13 +760,13 @@ void ocfs2_set_journal_params(struct ocfs2_super *osb)
if (osb->osb_commit_interval)
commit_interval = osb->osb_commit_interval;
- spin_lock(&journal->j_state_lock);
+ write_lock(&journal->j_state_lock);
journal->j_commit_interval = commit_interval;
if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER)
journal->j_flags |= JBD2_BARRIER;
else
journal->j_flags &= ~JBD2_BARRIER;
- spin_unlock(&journal->j_state_lock);
+ write_unlock(&journal->j_state_lock);
}
int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty)
@@ -1936,7 +1936,7 @@ void ocfs2_orphan_scan_work(struct work_struct *work)
mutex_lock(&os->os_lock);
ocfs2_queue_orphan_scan(osb);
if (atomic_read(&os->os_state) == ORPHAN_SCAN_ACTIVE)
- schedule_delayed_work(&os->os_orphan_scan_work,
+ queue_delayed_work(ocfs2_wq, &os->os_orphan_scan_work,
ocfs2_orphan_scan_timeout());
mutex_unlock(&os->os_lock);
}
@@ -1976,8 +1976,8 @@ void ocfs2_orphan_scan_start(struct ocfs2_super *osb)
atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE);
else {
atomic_set(&os->os_state, ORPHAN_SCAN_ACTIVE);
- schedule_delayed_work(&os->os_orphan_scan_work,
- ocfs2_orphan_scan_timeout());
+ queue_delayed_work(ocfs2_wq, &os->os_orphan_scan_work,
+ ocfs2_orphan_scan_timeout());
}
}
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index 3d74196..ec6adbf 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -118,6 +118,7 @@ unsigned int ocfs2_la_default_mb(struct ocfs2_super *osb)
{
unsigned int la_mb;
unsigned int gd_mb;
+ unsigned int la_max_mb;
unsigned int megs_per_slot;
struct super_block *sb = osb->sb;
@@ -182,6 +183,12 @@ unsigned int ocfs2_la_default_mb(struct ocfs2_super *osb)
if (megs_per_slot < la_mb)
la_mb = megs_per_slot;
+ /* We can't store more bits than we can in a block. */
+ la_max_mb = ocfs2_clusters_to_megabytes(osb->sb,
+ ocfs2_local_alloc_size(sb) * 8);
+ if (la_mb > la_max_mb)
+ la_mb = la_max_mb;
+
return la_mb;
}
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 2bb35fe..4607923 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -775,7 +775,7 @@ static int ocfs2_acquire_dquot(struct dquot *dquot)
* locking allocators ranks above a transaction start
*/
WARN_ON(journal_current_handle());
- status = ocfs2_extend_no_holes(gqinode,
+ status = ocfs2_extend_no_holes(gqinode, NULL,
gqinode->i_size + (need_alloc << sb->s_blocksize_bits),
gqinode->i_size);
if (status < 0)
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 8bd70d4..dc78764 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -971,7 +971,7 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
u64 p_blkno;
/* We are protected by dqio_sem so no locking needed */
- status = ocfs2_extend_no_holes(lqinode,
+ status = ocfs2_extend_no_holes(lqinode, NULL,
lqinode->i_size + 2 * sb->s_blocksize,
lqinode->i_size);
if (status < 0) {
@@ -1114,7 +1114,7 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file(
return ocfs2_local_quota_add_chunk(sb, type, offset);
/* We are protected by dqio_sem so no locking needed */
- status = ocfs2_extend_no_holes(lqinode,
+ status = ocfs2_extend_no_holes(lqinode, NULL,
lqinode->i_size + sb->s_blocksize,
lqinode->i_size);
if (status < 0) {
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 4793f36..3ac5aa7 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -2931,6 +2931,12 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle,
offset = ((loff_t)cpos) << OCFS2_SB(sb)->s_clustersize_bits;
end = offset + (new_len << OCFS2_SB(sb)->s_clustersize_bits);
+ /*
+ * We only duplicate pages until we reach the page contains i_size - 1.
+ * So trim 'end' to i_size.
+ */
+ if (end > i_size_read(context->inode))
+ end = i_size_read(context->inode);
while (offset < end) {
page_index = offset >> PAGE_CACHE_SHIFT;
@@ -4166,6 +4172,12 @@ static int __ocfs2_reflink(struct dentry *old_dentry,
struct inode *inode = old_dentry->d_inode;
struct buffer_head *new_bh = NULL;
+ if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SYSTEM_FILE) {
+ ret = -EINVAL;
+ mlog_errno(ret);
+ goto out;
+ }
+
ret = filemap_fdatawrite(inode->i_mapping);
if (ret) {
mlog_errno(ret);
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index f4c2a9e..a8e6a95 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -741,7 +741,7 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
le16_to_cpu(bg->bg_free_bits_count));
le32_add_cpu(&cl->cl_recs[alloc_rec].c_total,
le16_to_cpu(bg->bg_bits));
- cl->cl_recs[alloc_rec].c_blkno = cpu_to_le64(bg->bg_blkno);
+ cl->cl_recs[alloc_rec].c_blkno = bg->bg_blkno;
if (le16_to_cpu(cl->cl_next_free_rec) < le16_to_cpu(cl->cl_count))
le16_add_cpu(&cl->cl_next_free_rec, 1);
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 0eaa929..03a799f 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -2472,7 +2472,7 @@ static void ocfs2_delete_osb(struct ocfs2_super *osb)
kfree(osb->slot_recovery_generations);
/* FIXME
* This belongs in journal shutdown, but because we have to
- * allocate osb->journal at the start of ocfs2_initalize_osb(),
+ * allocate osb->journal at the start of ocfs2_initialize_osb(),
* we free it here.
*/
kfree(osb->journal);
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index e97b348..d03469f 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -709,7 +709,7 @@ static int ocfs2_xattr_extend_allocation(struct inode *inode,
struct ocfs2_xattr_value_buf *vb,
struct ocfs2_xattr_set_ctxt *ctxt)
{
- int status = 0;
+ int status = 0, credits;
handle_t *handle = ctxt->handle;
enum ocfs2_alloc_restarted why;
u32 prev_clusters, logical_start = le32_to_cpu(vb->vb_xv->xr_clusters);
@@ -719,38 +719,54 @@ static int ocfs2_xattr_extend_allocation(struct inode *inode,
ocfs2_init_xattr_value_extent_tree(&et, INODE_CACHE(inode), vb);
- status = vb->vb_access(handle, INODE_CACHE(inode), vb->vb_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (status < 0) {
- mlog_errno(status);
- goto leave;
- }
+ while (clusters_to_add) {
+ status = vb->vb_access(handle, INODE_CACHE(inode), vb->vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (status < 0) {
+ mlog_errno(status);
+ break;
+ }
- prev_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
- status = ocfs2_add_clusters_in_btree(handle,
- &et,
- &logical_start,
- clusters_to_add,
- 0,
- ctxt->data_ac,
- ctxt->meta_ac,
- &why);
- if (status < 0) {
- mlog_errno(status);
- goto leave;
- }
+ prev_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
+ status = ocfs2_add_clusters_in_btree(handle,
+ &et,
+ &logical_start,
+ clusters_to_add,
+ 0,
+ ctxt->data_ac,
+ ctxt->meta_ac,
+ &why);
+ if ((status < 0) && (status != -EAGAIN)) {
+ if (status != -ENOSPC)
+ mlog_errno(status);
+ break;
+ }
- ocfs2_journal_dirty(handle, vb->vb_bh);
+ ocfs2_journal_dirty(handle, vb->vb_bh);
- clusters_to_add -= le32_to_cpu(vb->vb_xv->xr_clusters) - prev_clusters;
+ clusters_to_add -= le32_to_cpu(vb->vb_xv->xr_clusters) -
+ prev_clusters;
- /*
- * We should have already allocated enough space before the transaction,
- * so no need to restart.
- */
- BUG_ON(why != RESTART_NONE || clusters_to_add);
-
-leave:
+ if (why != RESTART_NONE && clusters_to_add) {
+ /*
+ * We can only fail in case the alloc file doesn't give
+ * up enough clusters.
+ */
+ BUG_ON(why == RESTART_META);
+
+ mlog(0, "restarting xattr value extension for %u"
+ " clusters,.\n", clusters_to_add);
+ credits = ocfs2_calc_extend_credits(inode->i_sb,
+ &vb->vb_xv->xr_list,
+ clusters_to_add);
+ status = ocfs2_extend_trans(handle, credits);
+ if (status < 0) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ break;
+ }
+ }
+ }
return status;
}
@@ -6788,16 +6804,15 @@ out:
return ret;
}
-static int ocfs2_reflink_xattr_buckets(handle_t *handle,
+static int ocfs2_reflink_xattr_bucket(handle_t *handle,
u64 blkno, u64 new_blkno, u32 clusters,
+ u32 *cpos, int num_buckets,
struct ocfs2_alloc_context *meta_ac,
struct ocfs2_alloc_context *data_ac,
struct ocfs2_reflink_xattr_tree_args *args)
{
int i, j, ret = 0;
struct super_block *sb = args->reflink->old_inode->i_sb;
- u32 bpc = ocfs2_xattr_buckets_per_cluster(OCFS2_SB(sb));
- u32 num_buckets = clusters * bpc;
int bpb = args->old_bucket->bu_blocks;
struct ocfs2_xattr_value_buf vb = {
.vb_access = ocfs2_journal_access,
@@ -6816,14 +6831,6 @@ static int ocfs2_reflink_xattr_buckets(handle_t *handle,
break;
}
- /*
- * The real bucket num in this series of blocks is stored
- * in the 1st bucket.
- */
- if (i == 0)
- num_buckets = le16_to_cpu(
- bucket_xh(args->old_bucket)->xh_num_buckets);
-
ret = ocfs2_xattr_bucket_journal_access(handle,
args->new_bucket,
OCFS2_JOURNAL_ACCESS_CREATE);
@@ -6837,6 +6844,18 @@ static int ocfs2_reflink_xattr_buckets(handle_t *handle,
bucket_block(args->old_bucket, j),
sb->s_blocksize);
+ /*
+ * Record the start cpos so that we can use it to initialize
+ * our xattr tree we also set the xh_num_bucket for the new
+ * bucket.
+ */
+ if (i == 0) {
+ *cpos = le32_to_cpu(bucket_xh(args->new_bucket)->
+ xh_entries[0].xe_name_hash);
+ bucket_xh(args->new_bucket)->xh_num_buckets =
+ cpu_to_le16(num_buckets);
+ }
+
ocfs2_xattr_bucket_journal_dirty(handle, args->new_bucket);
ret = ocfs2_reflink_xattr_header(handle, args->reflink,
@@ -6866,6 +6885,7 @@ static int ocfs2_reflink_xattr_buckets(handle_t *handle,
}
ocfs2_xattr_bucket_journal_dirty(handle, args->new_bucket);
+
ocfs2_xattr_bucket_relse(args->old_bucket);
ocfs2_xattr_bucket_relse(args->new_bucket);
}
@@ -6874,6 +6894,75 @@ static int ocfs2_reflink_xattr_buckets(handle_t *handle,
ocfs2_xattr_bucket_relse(args->new_bucket);
return ret;
}
+
+static int ocfs2_reflink_xattr_buckets(handle_t *handle,
+ struct inode *inode,
+ struct ocfs2_reflink_xattr_tree_args *args,
+ struct ocfs2_extent_tree *et,
+ struct ocfs2_alloc_context *meta_ac,
+ struct ocfs2_alloc_context *data_ac,
+ u64 blkno, u32 cpos, u32 len)
+{
+ int ret, first_inserted = 0;
+ u32 p_cluster, num_clusters, reflink_cpos = 0;
+ u64 new_blkno;
+ unsigned int num_buckets, reflink_buckets;
+ unsigned int bpc =
+ ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb));
+
+ ret = ocfs2_read_xattr_bucket(args->old_bucket, blkno);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+ num_buckets = le16_to_cpu(bucket_xh(args->old_bucket)->xh_num_buckets);
+ ocfs2_xattr_bucket_relse(args->old_bucket);
+
+ while (len && num_buckets) {
+ ret = ocfs2_claim_clusters(handle, data_ac,
+ 1, &p_cluster, &num_clusters);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ new_blkno = ocfs2_clusters_to_blocks(inode->i_sb, p_cluster);
+ reflink_buckets = min(num_buckets, bpc * num_clusters);
+
+ ret = ocfs2_reflink_xattr_bucket(handle, blkno,
+ new_blkno, num_clusters,
+ &reflink_cpos, reflink_buckets,
+ meta_ac, data_ac, args);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ /*
+ * For the 1st allocated cluster, we make it use the same cpos
+ * so that the xattr tree looks the same as the original one
+ * in the most case.
+ */
+ if (!first_inserted) {
+ reflink_cpos = cpos;
+ first_inserted = 1;
+ }
+ ret = ocfs2_insert_extent(handle, et, reflink_cpos, new_blkno,
+ num_clusters, 0, meta_ac);
+ if (ret)
+ mlog_errno(ret);
+
+ mlog(0, "insert new xattr extent rec start %llu len %u to %u\n",
+ (unsigned long long)new_blkno, num_clusters, reflink_cpos);
+
+ len -= num_clusters;
+ blkno += ocfs2_clusters_to_blocks(inode->i_sb, num_clusters);
+ num_buckets -= reflink_buckets;
+ }
+out:
+ return ret;
+}
+
/*
* Create the same xattr extent record in the new inode's xattr tree.
*/
@@ -6885,8 +6974,6 @@ static int ocfs2_reflink_xattr_rec(struct inode *inode,
void *para)
{
int ret, credits = 0;
- u32 p_cluster, num_clusters;
- u64 new_blkno;
handle_t *handle;
struct ocfs2_reflink_xattr_tree_args *args =
(struct ocfs2_reflink_xattr_tree_args *)para;
@@ -6895,6 +6982,9 @@ static int ocfs2_reflink_xattr_rec(struct inode *inode,
struct ocfs2_alloc_context *data_ac = NULL;
struct ocfs2_extent_tree et;
+ mlog(0, "reflink xattr buckets %llu len %u\n",
+ (unsigned long long)blkno, len);
+
ocfs2_init_xattr_tree_extent_tree(&et,
INODE_CACHE(args->reflink->new_inode),
args->new_blk_bh);
@@ -6914,32 +7004,12 @@ static int ocfs2_reflink_xattr_rec(struct inode *inode,
goto out;
}
- ret = ocfs2_claim_clusters(handle, data_ac,
- len, &p_cluster, &num_clusters);
- if (ret) {
- mlog_errno(ret);
- goto out_commit;
- }
-
- new_blkno = ocfs2_clusters_to_blocks(osb->sb, p_cluster);
-
- mlog(0, "reflink xattr buckets %llu to %llu, len %u\n",
- (unsigned long long)blkno, (unsigned long long)new_blkno, len);
- ret = ocfs2_reflink_xattr_buckets(handle, blkno, new_blkno, len,
- meta_ac, data_ac, args);
- if (ret) {
- mlog_errno(ret);
- goto out_commit;
- }
-
- mlog(0, "insert new xattr extent rec start %llu len %u to %u\n",
- (unsigned long long)new_blkno, len, cpos);
- ret = ocfs2_insert_extent(handle, &et, cpos, new_blkno,
- len, 0, meta_ac);
+ ret = ocfs2_reflink_xattr_buckets(handle, inode, args, &et,
+ meta_ac, data_ac,
+ blkno, cpos, len);
if (ret)
mlog_errno(ret);
-out_commit:
ocfs2_commit_trans(osb, handle);
out:
diff --git a/fs/open.c b/fs/open.c
index 5463266..0d1fa3d 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -110,7 +110,7 @@ static long do_sys_truncate(const char __user *pathname, loff_t length)
error = locks_verify_truncate(inode, NULL, length);
if (!error)
- error = security_path_truncate(&path, length, 0);
+ error = security_path_truncate(&path);
if (!error)
error = do_truncate(path.dentry, length, 0, NULL);
@@ -165,8 +165,7 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
error = locks_verify_truncate(inode, file, length);
if (!error)
- error = security_path_truncate(&file->f_path, length,
- ATTR_MTIME|ATTR_CTIME);
+ error = security_path_truncate(&file->f_path);
if (!error)
error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, file);
out_putf:
@@ -367,7 +366,7 @@ SYSCALL_DEFINE1(chdir, const char __user *, filename)
if (error)
goto out;
- error = inode_permission(path.dentry->d_inode, MAY_EXEC | MAY_ACCESS);
+ error = inode_permission(path.dentry->d_inode, MAY_EXEC | MAY_CHDIR);
if (error)
goto dput_and_out;
@@ -396,7 +395,7 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
if (!S_ISDIR(inode->i_mode))
goto out_putf;
- error = inode_permission(inode, MAY_EXEC | MAY_ACCESS);
+ error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
if (!error)
set_fs_pwd(current->fs, &file->f_path);
out_putf:
@@ -414,7 +413,7 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename)
if (error)
goto out;
- error = inode_permission(path.dentry->d_inode, MAY_EXEC | MAY_ACCESS);
+ error = inode_permission(path.dentry->d_inode, MAY_EXEC | MAY_CHDIR);
if (error)
goto dput_and_out;
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 5dcd4b0..72c5265 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -459,7 +459,6 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
}
/* everything is up and running, commence */
- INIT_RCU_HEAD(&p->rcu_head);
rcu_assign_pointer(ptbl->part[partno], p);
/* suppress uevent if the disk supresses it */
diff --git a/fs/partitions/ibm.c b/fs/partitions/ibm.c
index 3e73de5..fc84976 100644
--- a/fs/partitions/ibm.c
+++ b/fs/partitions/ibm.c
@@ -74,6 +74,7 @@ int ibm_partition(struct parsed_partitions *state)
} *label;
unsigned char *data;
Sector sect;
+ sector_t labelsect;
res = 0;
blocksize = bdev_logical_block_size(bdev);
@@ -98,10 +99,19 @@ int ibm_partition(struct parsed_partitions *state)
goto out_freeall;
/*
+ * Special case for FBA disks: label sector does not depend on
+ * blocksize.
+ */
+ if ((info->cu_type == 0x6310 && info->dev_type == 0x9336) ||
+ (info->cu_type == 0x3880 && info->dev_type == 0x3370))
+ labelsect = info->label_block;
+ else
+ labelsect = info->label_block * (blocksize >> 9);
+
+ /*
* Get volume label, extract name and type.
*/
- data = read_part_sector(state, info->label_block*(blocksize/512),
- &sect);
+ data = read_part_sector(state, labelsect, &sect);
if (data == NULL)
goto out_readerr;
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 9b58d38..fff6572 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -176,7 +176,7 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
if (tracer)
tpid = task_pid_nr_ns(tracer, ns);
}
- cred = get_cred((struct cred *) __task_cred(p));
+ cred = get_task_cred(p);
seq_printf(m,
"State:\t%s\n"
"Tgid:\t%d\n"
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 12c233d..ef72b16 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -132,6 +132,22 @@ static __cacheline_aligned_in_smp DEFINE_SPINLOCK(dq_state_lock);
__cacheline_aligned_in_smp DEFINE_SPINLOCK(dq_data_lock);
EXPORT_SYMBOL(dq_data_lock);
+void __quota_error(struct super_block *sb, const char *func,
+ const char *fmt, ...)
+{
+ va_list args;
+
+ if (printk_ratelimit()) {
+ va_start(args, fmt);
+ printk(KERN_ERR "Quota error (device %s): %s: ",
+ sb->s_id, func);
+ vprintk(fmt, args);
+ printk("\n");
+ va_end(args);
+ }
+}
+EXPORT_SYMBOL(__quota_error);
+
#if defined(CONFIG_QUOTA_DEBUG) || defined(CONFIG_PRINT_QUOTA_WARNING)
static char *quotatypes[] = INITQFNAMES;
#endif
@@ -676,7 +692,7 @@ static void prune_dqcache(int count)
* This is called from kswapd when we think we need some
* more memory
*/
-static int shrink_dqcache_memory(int nr, gfp_t gfp_mask)
+static int shrink_dqcache_memory(struct shrinker *shrink, int nr, gfp_t gfp_mask)
{
if (nr) {
spin_lock(&dq_list_lock);
@@ -705,11 +721,8 @@ void dqput(struct dquot *dquot)
return;
#ifdef CONFIG_QUOTA_DEBUG
if (!atomic_read(&dquot->dq_count)) {
- printk("VFS: dqput: trying to free free dquot\n");
- printk("VFS: device %s, dquot of %s %d\n",
- dquot->dq_sb->s_id,
- quotatypes[dquot->dq_type],
- dquot->dq_id);
+ quota_error(dquot->dq_sb, "trying to free free dquot of %s %d",
+ quotatypes[dquot->dq_type], dquot->dq_id);
BUG();
}
#endif
@@ -732,9 +745,9 @@ we_slept:
/* Commit dquot before releasing */
ret = dquot->dq_sb->dq_op->write_dquot(dquot);
if (ret < 0) {
- printk(KERN_ERR "VFS: cannot write quota structure on "
- "device %s (error %d). Quota may get out of "
- "sync!\n", dquot->dq_sb->s_id, ret);
+ quota_error(dquot->dq_sb, "Can't write quota structure"
+ " (error %d). Quota may get out of sync!",
+ ret);
/*
* We clear dirty bit anyway, so that we avoid
* infinite loop here
@@ -914,9 +927,9 @@ static void add_dquot_ref(struct super_block *sb, int type)
#ifdef CONFIG_QUOTA_DEBUG
if (reserved) {
- printk(KERN_WARNING "VFS (%s): Writes happened before quota"
- " was turned on thus quota information is probably "
- "inconsistent. Please run quotacheck(8).\n", sb->s_id);
+ quota_error(sb, "Writes happened before quota was turned on "
+ "thus quota information is probably inconsistent. "
+ "Please run quotacheck(8)");
}
#endif
}
@@ -947,7 +960,9 @@ static int remove_inode_dquot_ref(struct inode *inode, int type,
if (dqput_blocks(dquot)) {
#ifdef CONFIG_QUOTA_DEBUG
if (atomic_read(&dquot->dq_count) != 1)
- printk(KERN_WARNING "VFS: Adding dquot with dq_count %d to dispose list.\n", atomic_read(&dquot->dq_count));
+ quota_error(inode->i_sb, "Adding dquot with "
+ "dq_count %d to dispose list",
+ atomic_read(&dquot->dq_count));
#endif
spin_lock(&dq_list_lock);
/* As dquot must have currently users it can't be on
@@ -986,6 +1001,7 @@ static void remove_dquot_ref(struct super_block *sb, int type,
struct list_head *tofree_head)
{
struct inode *inode;
+ int reserved = 0;
spin_lock(&inode_lock);
list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
@@ -995,10 +1011,20 @@ static void remove_dquot_ref(struct super_block *sb, int type,
* only quota pointers and these have separate locking
* (dqptr_sem).
*/
- if (!IS_NOQUOTA(inode))
+ if (!IS_NOQUOTA(inode)) {
+ if (unlikely(inode_get_rsv_space(inode) > 0))
+ reserved = 1;
remove_inode_dquot_ref(inode, type, tofree_head);
+ }
}
spin_unlock(&inode_lock);
+#ifdef CONFIG_QUOTA_DEBUG
+ if (reserved) {
+ printk(KERN_WARNING "VFS (%s): Writes happened after quota"
+ " was disabled thus quota information is probably "
+ "inconsistent. Please run quotacheck(8).\n", sb->s_id);
+ }
+#endif
}
/* Gather all references from inodes and drop them */
@@ -1304,6 +1330,15 @@ static int info_bdq_free(struct dquot *dquot, qsize_t space)
return QUOTA_NL_NOWARN;
}
+static int dquot_active(const struct inode *inode)
+{
+ struct super_block *sb = inode->i_sb;
+
+ if (IS_NOQUOTA(inode))
+ return 0;
+ return sb_any_quota_loaded(sb) & ~sb_any_quota_suspended(sb);
+}
+
/*
* Initialize quota pointers in inode
*
@@ -1323,7 +1358,7 @@ static void __dquot_initialize(struct inode *inode, int type)
/* First test before acquiring mutex - solves deadlocks when we
* re-enter the quota code and are already holding the mutex */
- if (!sb_any_quota_active(inode->i_sb) || IS_NOQUOTA(inode))
+ if (!dquot_active(inode))
return;
/* First get references to structures we might need. */
@@ -1507,7 +1542,7 @@ int __dquot_alloc_space(struct inode *inode, qsize_t number, int flags)
* First test before acquiring mutex - solves deadlocks when we
* re-enter the quota code and are already holding the mutex
*/
- if (!sb_any_quota_active(inode->i_sb) || IS_NOQUOTA(inode)) {
+ if (!dquot_active(inode)) {
inode_incr_space(inode, number, reserve);
goto out;
}
@@ -1559,7 +1594,7 @@ int dquot_alloc_inode(const struct inode *inode)
/* First test before acquiring mutex - solves deadlocks when we
* re-enter the quota code and are already holding the mutex */
- if (!sb_any_quota_active(inode->i_sb) || IS_NOQUOTA(inode))
+ if (!dquot_active(inode))
return 0;
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
warntype[cnt] = QUOTA_NL_NOWARN;
@@ -1596,7 +1631,7 @@ int dquot_claim_space_nodirty(struct inode *inode, qsize_t number)
{
int cnt;
- if (!sb_any_quota_active(inode->i_sb) || IS_NOQUOTA(inode)) {
+ if (!dquot_active(inode)) {
inode_claim_rsv_space(inode, number);
return 0;
}
@@ -1629,7 +1664,7 @@ void __dquot_free_space(struct inode *inode, qsize_t number, int flags)
/* First test before acquiring mutex - solves deadlocks when we
* re-enter the quota code and are already holding the mutex */
- if (!sb_any_quota_active(inode->i_sb) || IS_NOQUOTA(inode)) {
+ if (!dquot_active(inode)) {
inode_decr_space(inode, number, reserve);
return;
}
@@ -1667,7 +1702,7 @@ void dquot_free_inode(const struct inode *inode)
/* First test before acquiring mutex - solves deadlocks when we
* re-enter the quota code and are already holding the mutex */
- if (!sb_any_quota_active(inode->i_sb) || IS_NOQUOTA(inode))
+ if (!dquot_active(inode))
return;
down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
@@ -1790,7 +1825,7 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
struct super_block *sb = inode->i_sb;
int ret;
- if (!sb_any_quota_active(sb) || IS_NOQUOTA(inode))
+ if (!dquot_active(inode))
return 0;
if (iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid)
@@ -1957,7 +1992,7 @@ int dquot_disable(struct super_block *sb, int type, unsigned int flags)
truncate_inode_pages(&toputinode[cnt]->i_data,
0);
mutex_unlock(&toputinode[cnt]->i_mutex);
- mark_inode_dirty(toputinode[cnt]);
+ mark_inode_dirty_sync(toputinode[cnt]);
}
mutex_unlock(&dqopt->dqonoff_mutex);
}
@@ -2270,7 +2305,7 @@ static void do_get_dqblk(struct dquot *dquot, struct fs_disk_quota *di)
memset(di, 0, sizeof(*di));
di->d_version = FS_DQUOT_VERSION;
di->d_flags = dquot->dq_type == USRQUOTA ?
- XFS_USER_QUOTA : XFS_GROUP_QUOTA;
+ FS_USER_QUOTA : FS_GROUP_QUOTA;
di->d_id = dquot->dq_id;
spin_lock(&dq_data_lock);
diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c
index 24f0340..9e48874 100644
--- a/fs/quota/quota_tree.c
+++ b/fs/quota/quota_tree.c
@@ -65,8 +65,7 @@ static ssize_t write_blk(struct qtree_mem_dqinfo *info, uint blk, char *buf)
ret = sb->s_op->quota_write(sb, info->dqi_type, buf,
info->dqi_usable_bs, blk << info->dqi_blocksize_bits);
if (ret != info->dqi_usable_bs) {
- q_warn(KERN_WARNING "VFS: dquota write failed on "
- "dev %s\n", sb->s_id);
+ quota_error(sb, "dquota write failed");
if (ret >= 0)
ret = -EIO;
}
@@ -160,9 +159,8 @@ static int remove_free_dqentry(struct qtree_mem_dqinfo *info, char *buf,
dh->dqdh_next_free = dh->dqdh_prev_free = cpu_to_le32(0);
/* No matter whether write succeeds block is out of list */
if (write_blk(info, blk, buf) < 0)
- q_warn(KERN_ERR
- "VFS: Can't write block (%u) with free entries.\n",
- blk);
+ quota_error(info->dqi_sb, "Can't write block (%u) "
+ "with free entries", blk);
return 0;
out_buf:
kfree(tmpbuf);
@@ -252,9 +250,8 @@ static uint find_free_dqentry(struct qtree_mem_dqinfo *info,
if (le16_to_cpu(dh->dqdh_entries) + 1 >= qtree_dqstr_in_blk(info)) {
*err = remove_free_dqentry(info, buf, blk);
if (*err < 0) {
- q_warn(KERN_ERR "VFS: find_free_dqentry(): Can't "
- "remove block (%u) from entry free list.\n",
- blk);
+ quota_error(dquot->dq_sb, "Can't remove block (%u) "
+ "from entry free list", blk);
goto out_buf;
}
}
@@ -268,16 +265,15 @@ static uint find_free_dqentry(struct qtree_mem_dqinfo *info,
}
#ifdef __QUOTA_QT_PARANOIA
if (i == qtree_dqstr_in_blk(info)) {
- printk(KERN_ERR "VFS: find_free_dqentry(): Data block full "
- "but it shouldn't.\n");
+ quota_error(dquot->dq_sb, "Data block full but it shouldn't");
*err = -EIO;
goto out_buf;
}
#endif
*err = write_blk(info, blk, buf);
if (*err < 0) {
- q_warn(KERN_ERR "VFS: find_free_dqentry(): Can't write quota "
- "data block %u.\n", blk);
+ quota_error(dquot->dq_sb, "Can't write quota data block %u",
+ blk);
goto out_buf;
}
dquot->dq_off = (blk << info->dqi_blocksize_bits) +
@@ -311,8 +307,8 @@ static int do_insert_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot,
} else {
ret = read_blk(info, *treeblk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read tree quota block "
- "%u.\n", *treeblk);
+ quota_error(dquot->dq_sb, "Can't read tree quota "
+ "block %u", *treeblk);
goto out_buf;
}
}
@@ -323,9 +319,9 @@ static int do_insert_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot,
if (depth == info->dqi_qtree_depth - 1) {
#ifdef __QUOTA_QT_PARANOIA
if (newblk) {
- printk(KERN_ERR "VFS: Inserting already present quota "
- "entry (block %u).\n",
- le32_to_cpu(ref[get_index(info,
+ quota_error(dquot->dq_sb, "Inserting already present "
+ "quota entry (block %u)",
+ le32_to_cpu(ref[get_index(info,
dquot->dq_id, depth)]));
ret = -EIO;
goto out_buf;
@@ -373,8 +369,8 @@ int qtree_write_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
if (!dquot->dq_off) {
ret = dq_insert_tree(info, dquot);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Error %zd occurred while "
- "creating quota.\n", ret);
+ quota_error(sb, "Error %zd occurred while creating "
+ "quota", ret);
kfree(ddquot);
return ret;
}
@@ -385,8 +381,7 @@ int qtree_write_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
ret = sb->s_op->quota_write(sb, type, ddquot, info->dqi_entry_size,
dquot->dq_off);
if (ret != info->dqi_entry_size) {
- q_warn(KERN_WARNING "VFS: dquota write failed on dev %s\n",
- sb->s_id);
+ quota_error(sb, "dquota write failed");
if (ret >= 0)
ret = -ENOSPC;
} else {
@@ -410,14 +405,15 @@ static int free_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot,
if (!buf)
return -ENOMEM;
if (dquot->dq_off >> info->dqi_blocksize_bits != blk) {
- q_warn(KERN_ERR "VFS: Quota structure has offset to other "
- "block (%u) than it should (%u).\n", blk,
- (uint)(dquot->dq_off >> info->dqi_blocksize_bits));
+ quota_error(dquot->dq_sb, "Quota structure has offset to "
+ "other block (%u) than it should (%u)", blk,
+ (uint)(dquot->dq_off >> info->dqi_blocksize_bits));
goto out_buf;
}
ret = read_blk(info, blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read quota data block %u\n", blk);
+ quota_error(dquot->dq_sb, "Can't read quota data block %u",
+ blk);
goto out_buf;
}
dh = (struct qt_disk_dqdbheader *)buf;
@@ -427,8 +423,8 @@ static int free_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot,
if (ret >= 0)
ret = put_free_dqblk(info, buf, blk);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't move quota data block (%u) "
- "to free list.\n", blk);
+ quota_error(dquot->dq_sb, "Can't move quota data block "
+ "(%u) to free list", blk);
goto out_buf;
}
} else {
@@ -440,15 +436,15 @@ static int free_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot,
/* Insert will write block itself */
ret = insert_free_dqentry(info, buf, blk);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't insert quota data "
- "block (%u) to free entry list.\n", blk);
+ quota_error(dquot->dq_sb, "Can't insert quota "
+ "data block (%u) to free entry list", blk);
goto out_buf;
}
} else {
ret = write_blk(info, blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't write quota data "
- "block %u\n", blk);
+ quota_error(dquot->dq_sb, "Can't write quota "
+ "data block %u", blk);
goto out_buf;
}
}
@@ -472,7 +468,8 @@ static int remove_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot,
return -ENOMEM;
ret = read_blk(info, *blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read quota data block %u\n", *blk);
+ quota_error(dquot->dq_sb, "Can't read quota data "
+ "block %u", blk);
goto out_buf;
}
newblk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]);
@@ -496,8 +493,8 @@ static int remove_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot,
} else {
ret = write_blk(info, *blk, buf);
if (ret < 0)
- q_warn(KERN_ERR "VFS: Can't write quota tree "
- "block %u.\n", *blk);
+ quota_error(dquot->dq_sb, "Can't write quota "
+ "tree block %u", blk);
}
}
out_buf:
@@ -529,7 +526,8 @@ static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info,
return -ENOMEM;
ret = read_blk(info, blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ quota_error(dquot->dq_sb, "Can't read quota tree "
+ "block %u", blk);
goto out_buf;
}
ddquot = buf + sizeof(struct qt_disk_dqdbheader);
@@ -539,8 +537,8 @@ static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info,
ddquot += info->dqi_entry_size;
}
if (i == qtree_dqstr_in_blk(info)) {
- q_warn(KERN_ERR "VFS: Quota for id %u referenced "
- "but not present.\n", dquot->dq_id);
+ quota_error(dquot->dq_sb, "Quota for id %u referenced "
+ "but not present", dquot->dq_id);
ret = -EIO;
goto out_buf;
} else {
@@ -564,7 +562,8 @@ static loff_t find_tree_dqentry(struct qtree_mem_dqinfo *info,
return -ENOMEM;
ret = read_blk(info, blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ quota_error(dquot->dq_sb, "Can't read quota tree block %u",
+ blk);
goto out_buf;
}
ret = 0;
@@ -598,7 +597,7 @@ int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
#ifdef __QUOTA_QT_PARANOIA
/* Invalidated quota? */
if (!sb_dqopt(dquot->dq_sb)->files[type]) {
- printk(KERN_ERR "VFS: Quota invalidated while reading!\n");
+ quota_error(sb, "Quota invalidated while reading!");
return -EIO;
}
#endif
@@ -607,8 +606,8 @@ int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
offset = find_dqentry(info, dquot);
if (offset <= 0) { /* Entry not present? */
if (offset < 0)
- q_warn(KERN_ERR "VFS: Can't read quota "
- "structure for id %u.\n", dquot->dq_id);
+ quota_error(sb, "Can't read quota structure "
+ "for id %u", dquot->dq_id);
dquot->dq_off = 0;
set_bit(DQ_FAKE_B, &dquot->dq_flags);
memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
@@ -625,8 +624,8 @@ int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
if (ret != info->dqi_entry_size) {
if (ret >= 0)
ret = -EIO;
- q_warn(KERN_ERR "VFS: Error while reading quota "
- "structure for id %u.\n", dquot->dq_id);
+ quota_error(sb, "Error while reading quota structure for id %u",
+ dquot->dq_id);
set_bit(DQ_FAKE_B, &dquot->dq_flags);
memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
kfree(ddquot);
diff --git a/fs/quota/quota_tree.h b/fs/quota/quota_tree.h
index ccc3e71..a1ab8db 100644
--- a/fs/quota/quota_tree.h
+++ b/fs/quota/quota_tree.h
@@ -22,10 +22,4 @@ struct qt_disk_dqdbheader {
#define QT_TREEOFF 1 /* Offset of tree in file in blocks */
-#define q_warn(fmt, args...) \
-do { \
- if (printk_ratelimit()) \
- printk(fmt, ## args); \
-} while(0)
-
#endif /* _LINUX_QUOTAIO_TREE_H */
diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c
index 4af344c..34b37a6 100644
--- a/fs/quota/quota_v1.c
+++ b/fs/quota/quota_v1.c
@@ -95,8 +95,7 @@ static int v1_commit_dqblk(struct dquot *dquot)
(char *)&dqblk, sizeof(struct v1_disk_dqblk),
v1_dqoff(dquot->dq_id));
if (ret != sizeof(struct v1_disk_dqblk)) {
- printk(KERN_WARNING "VFS: dquota write failed on dev %s\n",
- dquot->dq_sb->s_id);
+ quota_error(dquot->dq_sb, "dquota write failed");
if (ret >= 0)
ret = -EIO;
goto out;
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index 135206a..65444d2 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -63,9 +63,8 @@ static int v2_read_header(struct super_block *sb, int type,
size = sb->s_op->quota_read(sb, type, (char *)dqhead,
sizeof(struct v2_disk_dqheader), 0);
if (size != sizeof(struct v2_disk_dqheader)) {
- q_warn(KERN_WARNING "quota_v2: Failed header read:"
- " expected=%zd got=%zd\n",
- sizeof(struct v2_disk_dqheader), size);
+ quota_error(sb, "Failed header read: expected=%zd got=%zd",
+ sizeof(struct v2_disk_dqheader), size);
return 0;
}
return 1;
@@ -106,8 +105,7 @@ static int v2_read_file_info(struct super_block *sb, int type)
size = sb->s_op->quota_read(sb, type, (char *)&dinfo,
sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF);
if (size != sizeof(struct v2_disk_dqinfo)) {
- q_warn(KERN_WARNING "quota_v2: Can't read info structure on device %s.\n",
- sb->s_id);
+ quota_error(sb, "Can't read info structure");
return -1;
}
info->dqi_priv = kmalloc(sizeof(struct qtree_mem_dqinfo), GFP_NOFS);
@@ -167,8 +165,7 @@ static int v2_write_file_info(struct super_block *sb, int type)
size = sb->s_op->quota_write(sb, type, (char *)&dinfo,
sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF);
if (size != sizeof(struct v2_disk_dqinfo)) {
- q_warn(KERN_WARNING "Can't write info structure on device %s.\n",
- sb->s_id);
+ quota_error(sb, "Can't write info structure");
return -1;
}
return 0;
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 0f22fda..29db72203 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1221,7 +1221,7 @@ static void init_inode(struct inode *inode, struct treepath *path)
inode_set_bytes(inode,
to_real_used_space(inode, inode->i_blocks,
SD_V2_SIZE));
- /* read persistent inode attributes from sd and initalise
+ /* read persistent inode attributes from sd and initialise
generic inode flags from them */
REISERFS_I(inode)->i_attrs = sd_v2_attrs(sd);
sd_attrs_to_i_attrs(sd_v2_attrs(sd), inode);
diff --git a/fs/splice.c b/fs/splice.c
index 740e6b9..efdbfec 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1282,7 +1282,8 @@ static int direct_splice_actor(struct pipe_inode_info *pipe,
{
struct file *file = sd->u.file;
- return do_splice_from(pipe, file, &sd->pos, sd->total_len, sd->flags);
+ return do_splice_from(pipe, file, &file->f_pos, sd->total_len,
+ sd->flags);
}
/**
@@ -1371,8 +1372,7 @@ static long do_splice(struct file *in, loff_t __user *off_in,
if (off_in)
return -ESPIPE;
if (off_out) {
- if (!out->f_op || !out->f_op->llseek ||
- out->f_op->llseek == no_llseek)
+ if (!(out->f_mode & FMODE_PWRITE))
return -EINVAL;
if (copy_from_user(&offset, off_out, sizeof(loff_t)))
return -EFAULT;
@@ -1392,8 +1392,7 @@ static long do_splice(struct file *in, loff_t __user *off_in,
if (off_out)
return -ESPIPE;
if (off_in) {
- if (!in->f_op || !in->f_op->llseek ||
- in->f_op->llseek == no_llseek)
+ if (!(in->f_mode & FMODE_PREAD))
return -EINVAL;
if (copy_from_user(&offset, off_in, sizeof(loff_t)))
return -EFAULT;
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 1beaa73..1b27b56 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -593,7 +593,8 @@ EXPORT_SYMBOL_GPL(sysfs_add_file_to_group);
* @mode: file permissions.
*
*/
-int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode)
+int sysfs_chmod_file(struct kobject *kobj, const struct attribute *attr,
+ mode_t mode)
{
struct sysfs_dirent *sd;
struct iattr newattrs;
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index f71246b..a7ac78f 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -28,6 +28,7 @@ static int sysfs_do_create_link(struct kobject *kobj, struct kobject *target,
struct sysfs_dirent *target_sd = NULL;
struct sysfs_dirent *sd = NULL;
struct sysfs_addrm_cxt acxt;
+ enum kobj_ns_type ns_type;
int error;
BUG_ON(!name);
@@ -58,16 +59,29 @@ static int sysfs_do_create_link(struct kobject *kobj, struct kobject *target,
if (!sd)
goto out_put;
- if (sysfs_ns_type(parent_sd))
+ ns_type = sysfs_ns_type(parent_sd);
+ if (ns_type)
sd->s_ns = target->ktype->namespace(target);
sd->s_symlink.target_sd = target_sd;
target_sd = NULL; /* reference is now owned by the symlink */
sysfs_addrm_start(&acxt, parent_sd);
- if (warn)
- error = sysfs_add_one(&acxt, sd);
- else
- error = __sysfs_add_one(&acxt, sd);
+ /* Symlinks must be between directories with the same ns_type */
+ if (!ns_type ||
+ (ns_type == sysfs_ns_type(sd->s_symlink.target_sd->s_parent))) {
+ if (warn)
+ error = sysfs_add_one(&acxt, sd);
+ else
+ error = __sysfs_add_one(&acxt, sd);
+ } else {
+ error = -EINVAL;
+ WARN(1, KERN_WARNING
+ "sysfs: symlink across ns_types %s/%s -> %s/%s\n",
+ parent_sd->s_name,
+ sd->s_name,
+ sd->s_symlink.target_sd->s_parent->s_name,
+ sd->s_symlink.target_sd->s_name);
+ }
sysfs_addrm_finish(&acxt);
if (error)
@@ -122,7 +136,7 @@ void sysfs_delete_link(struct kobject *kobj, struct kobject *targ,
{
const void *ns = NULL;
spin_lock(&sysfs_assoc_lock);
- if (targ->sd)
+ if (targ->sd && sysfs_ns_type(kobj->sd))
ns = targ->sd->s_ns;
spin_unlock(&sysfs_assoc_lock);
sysfs_hash_and_remove(kobj->sd, ns, name);
diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index ad7f67b..0084a33 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1457,13 +1457,13 @@ struct ubifs_lprops *ubifs_lpt_lookup(struct ubifs_info *c, int lnum)
shft -= UBIFS_LPT_FANOUT_SHIFT;
nnode = ubifs_get_nnode(c, nnode, iip);
if (IS_ERR(nnode))
- return ERR_PTR(PTR_ERR(nnode));
+ return ERR_CAST(nnode);
}
iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
shft -= UBIFS_LPT_FANOUT_SHIFT;
pnode = ubifs_get_pnode(c, nnode, iip);
if (IS_ERR(pnode))
- return ERR_PTR(PTR_ERR(pnode));
+ return ERR_CAST(pnode);
iip = (i & (UBIFS_LPT_FANOUT - 1));
dbg_lp("LEB %d, free %d, dirty %d, flags %d", lnum,
pnode->lprops[iip].free, pnode->lprops[iip].dirty,
@@ -1586,7 +1586,7 @@ struct ubifs_lprops *ubifs_lpt_lookup_dirty(struct ubifs_info *c, int lnum)
nnode = c->nroot;
nnode = dirty_cow_nnode(c, nnode);
if (IS_ERR(nnode))
- return ERR_PTR(PTR_ERR(nnode));
+ return ERR_CAST(nnode);
i = lnum - c->main_first;
shft = c->lpt_hght * UBIFS_LPT_FANOUT_SHIFT;
for (h = 1; h < c->lpt_hght; h++) {
@@ -1594,19 +1594,19 @@ struct ubifs_lprops *ubifs_lpt_lookup_dirty(struct ubifs_info *c, int lnum)
shft -= UBIFS_LPT_FANOUT_SHIFT;
nnode = ubifs_get_nnode(c, nnode, iip);
if (IS_ERR(nnode))
- return ERR_PTR(PTR_ERR(nnode));
+ return ERR_CAST(nnode);
nnode = dirty_cow_nnode(c, nnode);
if (IS_ERR(nnode))
- return ERR_PTR(PTR_ERR(nnode));
+ return ERR_CAST(nnode);
}
iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
shft -= UBIFS_LPT_FANOUT_SHIFT;
pnode = ubifs_get_pnode(c, nnode, iip);
if (IS_ERR(pnode))
- return ERR_PTR(PTR_ERR(pnode));
+ return ERR_CAST(pnode);
pnode = dirty_cow_pnode(c, pnode);
if (IS_ERR(pnode))
- return ERR_PTR(PTR_ERR(pnode));
+ return ERR_CAST(pnode);
iip = (i & (UBIFS_LPT_FANOUT - 1));
dbg_lp("LEB %d, free %d, dirty %d, flags %d", lnum,
pnode->lprops[iip].free, pnode->lprops[iip].dirty,
diff --git a/fs/ubifs/lpt_commit.c b/fs/ubifs/lpt_commit.c
index 13cb7a4..d12535b 100644
--- a/fs/ubifs/lpt_commit.c
+++ b/fs/ubifs/lpt_commit.c
@@ -646,7 +646,7 @@ static struct ubifs_pnode *pnode_lookup(struct ubifs_info *c, int i)
shft -= UBIFS_LPT_FANOUT_SHIFT;
nnode = ubifs_get_nnode(c, nnode, iip);
if (IS_ERR(nnode))
- return ERR_PTR(PTR_ERR(nnode));
+ return ERR_CAST(nnode);
}
iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
return ubifs_get_pnode(c, nnode, iip);
diff --git a/fs/ubifs/recovery.c b/fs/ubifs/recovery.c
index 109c6ea..daae9e1 100644
--- a/fs/ubifs/recovery.c
+++ b/fs/ubifs/recovery.c
@@ -24,7 +24,7 @@
* This file implements functions needed to recover from unclean un-mounts.
* When UBIFS is mounted, it checks a flag on the master node to determine if
* an un-mount was completed successfully. If not, the process of mounting
- * incorparates additional checking and fixing of on-flash data structures.
+ * incorporates additional checking and fixing of on-flash data structures.
* UBIFS always cleans away all remnants of an unclean un-mount, so that
* errors do not accumulate. However UBIFS defers recovery if it is mounted
* read-only, and the flash is not modified in that case.
@@ -1063,8 +1063,21 @@ int ubifs_rcvry_gc_commit(struct ubifs_info *c)
}
err = ubifs_find_dirty_leb(c, &lp, wbuf->offs, 2);
if (err) {
- if (err == -ENOSPC)
- dbg_err("could not find a dirty LEB");
+ /*
+ * There are no dirty or empty LEBs subject to here being
+ * enough for the index. Try to use
+ * 'ubifs_find_free_leb_for_idx()', which will return any empty
+ * LEBs (ignoring index requirements). If the index then
+ * doesn't have enough LEBs the recovery commit will fail -
+ * which is the same result anyway i.e. recovery fails. So
+ * there is no problem ignoring index requirements and just
+ * grabbing a free LEB since we have already established there
+ * is not a dirty LEB we could have used instead.
+ */
+ if (err == -ENOSPC) {
+ dbg_rcvry("could not find a dirty LEB");
+ goto find_free;
+ }
return err;
}
ubifs_assert(!(lp.flags & LPROPS_INDEX));
@@ -1139,8 +1152,8 @@ int ubifs_rcvry_gc_commit(struct ubifs_info *c)
find_free:
/*
* There is no GC head LEB or the free space in the GC head LEB is too
- * small. Allocate gc_lnum by calling 'ubifs_find_free_leb_for_idx()' so
- * GC is not run.
+ * small, or there are not dirty LEBs. Allocate gc_lnum by calling
+ * 'ubifs_find_free_leb_for_idx()' so GC is not run.
*/
lnum = ubifs_find_free_leb_for_idx(c);
if (lnum < 0) {
diff --git a/fs/ubifs/shrinker.c b/fs/ubifs/shrinker.c
index 02feb59..0b20111 100644
--- a/fs/ubifs/shrinker.c
+++ b/fs/ubifs/shrinker.c
@@ -277,7 +277,7 @@ static int kick_a_thread(void)
return 0;
}
-int ubifs_shrinker(int nr, gfp_t gfp_mask)
+int ubifs_shrinker(struct shrinker *shrink, int nr, gfp_t gfp_mask)
{
int freed, contention = 0;
long clean_zn_cnt = atomic_long_read(&ubifs_clean_zn_cnt);
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 4d2f215..5fc5a09 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1307,6 +1307,8 @@ static int mount_ubifs(struct ubifs_info *c)
if (err)
goto out_orphans;
err = ubifs_rcvry_gc_commit(c);
+ if (err)
+ goto out_orphans;
} else {
err = take_gc_lnum(c);
if (err)
@@ -1318,7 +1320,7 @@ static int mount_ubifs(struct ubifs_info *c)
*/
err = ubifs_leb_unmap(c, c->gc_lnum);
if (err)
- return err;
+ goto out_orphans;
}
err = dbg_check_lprops(c);
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 2eef553..0431087 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1575,7 +1575,7 @@ int ubifs_tnc_start_commit(struct ubifs_info *c, struct ubifs_zbranch *zroot);
int ubifs_tnc_end_commit(struct ubifs_info *c);
/* shrinker.c */
-int ubifs_shrinker(int nr_to_scan, gfp_t gfp_mask);
+int ubifs_shrinker(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask);
/* commit.c */
int ubifs_bg_thread(void *info);
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 94e06d6..6e450e0 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -36,7 +36,6 @@
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include <linux/aio.h>
-#include <linux/smp_lock.h>
#include "udf_i.h"
#include "udf_sb.h"
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 612d1e2..12bb651 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1579,9 +1579,7 @@ static int udf_load_sequence(struct super_block *sb, struct buffer_head *bh,
{
struct anchorVolDescPtr *anchor;
long main_s, main_e, reserve_s, reserve_e;
- struct udf_sb_info *sbi;
- sbi = UDF_SB(sb);
anchor = (struct anchorVolDescPtr *)bh->b_data;
/* Locate the main sequence */
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index c8fb13f..0dce969 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -87,11 +87,9 @@ xfs-y += xfs_alloc.o \
xfs_trans_buf.o \
xfs_trans_extfree.o \
xfs_trans_inode.o \
- xfs_trans_item.o \
xfs_utils.o \
xfs_vnodeops.o \
- xfs_rw.o \
- xfs_dmops.o
+ xfs_rw.o
xfs-$(CONFIG_XFS_TRACE) += xfs_btree_trace.o
diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c
index 9f769b5..b277186 100644
--- a/fs/xfs/linux-2.6/xfs_acl.c
+++ b/fs/xfs/linux-2.6/xfs_acl.c
@@ -225,7 +225,7 @@ xfs_check_acl(struct inode *inode, int mask)
struct posix_acl *acl;
int error = -EAGAIN;
- xfs_itrace_entry(ip);
+ trace_xfs_check_acl(ip);
/*
* If there is no attribute fork no ACL exists on this inode and
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 34640d6..d24e78f 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -21,19 +21,12 @@
#include "xfs_inum.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_trans.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_alloc.h"
-#include "xfs_btree.h"
#include "xfs_error.h"
#include "xfs_rw.h"
#include "xfs_iomap.h"
@@ -92,18 +85,15 @@ void
xfs_count_page_state(
struct page *page,
int *delalloc,
- int *unmapped,
int *unwritten)
{
struct buffer_head *bh, *head;
- *delalloc = *unmapped = *unwritten = 0;
+ *delalloc = *unwritten = 0;
bh = head = page_buffers(page);
do {
- if (buffer_uptodate(bh) && !buffer_mapped(bh))
- (*unmapped) = 1;
- else if (buffer_unwritten(bh))
+ if (buffer_unwritten(bh))
(*unwritten) = 1;
else if (buffer_delay(bh))
(*delalloc) = 1;
@@ -212,23 +202,17 @@ xfs_setfilesize(
}
/*
- * Schedule IO completion handling on a xfsdatad if this was
- * the final hold on this ioend. If we are asked to wait,
- * flush the workqueue.
+ * Schedule IO completion handling on the final put of an ioend.
*/
STATIC void
xfs_finish_ioend(
- xfs_ioend_t *ioend,
- int wait)
+ struct xfs_ioend *ioend)
{
if (atomic_dec_and_test(&ioend->io_remaining)) {
- struct workqueue_struct *wq;
-
- wq = (ioend->io_type == IO_UNWRITTEN) ?
- xfsconvertd_workqueue : xfsdatad_workqueue;
- queue_work(wq, &ioend->io_work);
- if (wait)
- flush_workqueue(wq);
+ if (ioend->io_type == IO_UNWRITTEN)
+ queue_work(xfsconvertd_workqueue, &ioend->io_work);
+ else
+ queue_work(xfsdatad_workqueue, &ioend->io_work);
}
}
@@ -272,11 +256,25 @@ xfs_end_io(
*/
if (error == EAGAIN) {
atomic_inc(&ioend->io_remaining);
- xfs_finish_ioend(ioend, 0);
+ xfs_finish_ioend(ioend);
/* ensure we don't spin on blocked ioends */
delay(1);
- } else
+ } else {
+ if (ioend->io_iocb)
+ aio_complete(ioend->io_iocb, ioend->io_result, 0);
xfs_destroy_ioend(ioend);
+ }
+}
+
+/*
+ * Call IO completion handling in caller context on the final put of an ioend.
+ */
+STATIC void
+xfs_finish_ioend_sync(
+ struct xfs_ioend *ioend)
+{
+ if (atomic_dec_and_test(&ioend->io_remaining))
+ xfs_end_io(&ioend->io_work);
}
/*
@@ -309,6 +307,8 @@ xfs_alloc_ioend(
atomic_inc(&XFS_I(ioend->io_inode)->i_iocount);
ioend->io_offset = 0;
ioend->io_size = 0;
+ ioend->io_iocb = NULL;
+ ioend->io_result = 0;
INIT_WORK(&ioend->io_work, xfs_end_io);
return ioend;
@@ -358,7 +358,7 @@ xfs_end_bio(
bio->bi_end_io = NULL;
bio_put(bio);
- xfs_finish_ioend(ioend, 0);
+ xfs_finish_ioend(ioend);
}
STATIC void
@@ -500,7 +500,7 @@ xfs_submit_ioend(
}
if (bio)
xfs_submit_ioend_bio(wbc, ioend, bio);
- xfs_finish_ioend(ioend, 0);
+ xfs_finish_ioend(ioend);
} while ((ioend = next) != NULL);
}
@@ -614,31 +614,30 @@ xfs_map_at_offset(
STATIC unsigned int
xfs_probe_page(
struct page *page,
- unsigned int pg_offset,
- int mapped)
+ unsigned int pg_offset)
{
+ struct buffer_head *bh, *head;
int ret = 0;
if (PageWriteback(page))
return 0;
+ if (!PageDirty(page))
+ return 0;
+ if (!page->mapping)
+ return 0;
+ if (!page_has_buffers(page))
+ return 0;
- if (page->mapping && PageDirty(page)) {
- if (page_has_buffers(page)) {
- struct buffer_head *bh, *head;
-
- bh = head = page_buffers(page);
- do {
- if (!buffer_uptodate(bh))
- break;
- if (mapped != buffer_mapped(bh))
- break;
- ret += bh->b_size;
- if (ret >= pg_offset)
- break;
- } while ((bh = bh->b_this_page) != head);
- } else
- ret = mapped ? 0 : PAGE_CACHE_SIZE;
- }
+ bh = head = page_buffers(page);
+ do {
+ if (!buffer_uptodate(bh))
+ break;
+ if (!buffer_mapped(bh))
+ break;
+ ret += bh->b_size;
+ if (ret >= pg_offset)
+ break;
+ } while ((bh = bh->b_this_page) != head);
return ret;
}
@@ -648,8 +647,7 @@ xfs_probe_cluster(
struct inode *inode,
struct page *startpage,
struct buffer_head *bh,
- struct buffer_head *head,
- int mapped)
+ struct buffer_head *head)
{
struct pagevec pvec;
pgoff_t tindex, tlast, tloff;
@@ -658,7 +656,7 @@ xfs_probe_cluster(
/* First sum forwards in this page */
do {
- if (!buffer_uptodate(bh) || (mapped != buffer_mapped(bh)))
+ if (!buffer_uptodate(bh) || !buffer_mapped(bh))
return total;
total += bh->b_size;
} while ((bh = bh->b_this_page) != head);
@@ -692,7 +690,7 @@ xfs_probe_cluster(
pg_offset = PAGE_CACHE_SIZE;
if (page->index == tindex && trylock_page(page)) {
- pg_len = xfs_probe_page(page, pg_offset, mapped);
+ pg_len = xfs_probe_page(page, pg_offset);
unlock_page(page);
}
@@ -761,7 +759,6 @@ xfs_convert_page(
struct xfs_bmbt_irec *imap,
xfs_ioend_t **ioendp,
struct writeback_control *wbc,
- int startio,
int all_bh)
{
struct buffer_head *bh, *head;
@@ -832,19 +829,14 @@ xfs_convert_page(
ASSERT(imap->br_startblock != DELAYSTARTBLOCK);
xfs_map_at_offset(inode, bh, imap, offset);
- if (startio) {
- xfs_add_to_ioend(inode, bh, offset,
- type, ioendp, done);
- } else {
- set_buffer_dirty(bh);
- unlock_buffer(bh);
- mark_buffer_dirty(bh);
- }
+ xfs_add_to_ioend(inode, bh, offset, type,
+ ioendp, done);
+
page_dirty--;
count++;
} else {
type = IO_NEW;
- if (buffer_mapped(bh) && all_bh && startio) {
+ if (buffer_mapped(bh) && all_bh) {
lock_buffer(bh);
xfs_add_to_ioend(inode, bh, offset,
type, ioendp, done);
@@ -859,14 +851,12 @@ xfs_convert_page(
if (uptodate && bh == head)
SetPageUptodate(page);
- if (startio) {
- if (count) {
- wbc->nr_to_write--;
- if (wbc->nr_to_write <= 0)
- done = 1;
- }
- xfs_start_page_writeback(page, !page_dirty, count);
+ if (count) {
+ wbc->nr_to_write--;
+ if (wbc->nr_to_write <= 0)
+ done = 1;
}
+ xfs_start_page_writeback(page, !page_dirty, count);
return done;
fail_unlock_page:
@@ -886,7 +876,6 @@ xfs_cluster_write(
struct xfs_bmbt_irec *imap,
xfs_ioend_t **ioendp,
struct writeback_control *wbc,
- int startio,
int all_bh,
pgoff_t tlast)
{
@@ -902,7 +891,7 @@ xfs_cluster_write(
for (i = 0; i < pagevec_count(&pvec); i++) {
done = xfs_convert_page(inode, pvec.pages[i], tindex++,
- imap, ioendp, wbc, startio, all_bh);
+ imap, ioendp, wbc, all_bh);
if (done)
break;
}
@@ -981,7 +970,7 @@ xfs_aops_discard_page(
*/
error = xfs_bmapi(NULL, ip, offset_fsb, 1,
XFS_BMAPI_ENTIRE, NULL, 0, &imap,
- &nimaps, NULL, NULL);
+ &nimaps, NULL);
if (error) {
/* something screwed, just bail */
@@ -1009,7 +998,7 @@ xfs_aops_discard_page(
*/
xfs_bmap_init(&flist, &firstblock);
error = xfs_bunmapi(NULL, ip, offset_fsb, 1, 0, 1, &firstblock,
- &flist, NULL, &done);
+ &flist, &done);
ASSERT(!flist.xbf_count && !flist.xbf_first);
if (error) {
@@ -1032,50 +1021,66 @@ out_invalidate:
}
/*
- * Calling this without startio set means we are being asked to make a dirty
- * page ready for freeing it's buffers. When called with startio set then
- * we are coming from writepage.
+ * Write out a dirty page.
+ *
+ * For delalloc space on the page we need to allocate space and flush it.
+ * For unwritten space on the page we need to start the conversion to
+ * regular allocated space.
+ * For any other dirty buffer heads on the page we should flush them.
*
- * When called with startio set it is important that we write the WHOLE
- * page if possible.
- * The bh->b_state's cannot know if any of the blocks or which block for
- * that matter are dirty due to mmap writes, and therefore bh uptodate is
- * only valid if the page itself isn't completely uptodate. Some layers
- * may clear the page dirty flag prior to calling write page, under the
- * assumption the entire page will be written out; by not writing out the
- * whole page the page can be reused before all valid dirty data is
- * written out. Note: in the case of a page that has been dirty'd by
- * mapwrite and but partially setup by block_prepare_write the
- * bh->b_states's will not agree and only ones setup by BPW/BCW will have
- * valid state, thus the whole page must be written out thing.
+ * If we detect that a transaction would be required to flush the page, we
+ * have to check the process flags first, if we are already in a transaction
+ * or disk I/O during allocations is off, we need to fail the writepage and
+ * redirty the page.
*/
-
STATIC int
-xfs_page_state_convert(
- struct inode *inode,
- struct page *page,
- struct writeback_control *wbc,
- int startio,
- int unmapped) /* also implies page uptodate */
+xfs_vm_writepage(
+ struct page *page,
+ struct writeback_control *wbc)
{
+ struct inode *inode = page->mapping->host;
+ int delalloc, unwritten;
struct buffer_head *bh, *head;
struct xfs_bmbt_irec imap;
xfs_ioend_t *ioend = NULL, *iohead = NULL;
loff_t offset;
- unsigned long p_offset = 0;
unsigned int type;
__uint64_t end_offset;
pgoff_t end_index, last_index;
ssize_t size, len;
int flags, err, imap_valid = 0, uptodate = 1;
- int page_dirty, count = 0;
- int trylock = 0;
- int all_bh = unmapped;
+ int count = 0;
+ int all_bh = 0;
- if (startio) {
- if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking)
- trylock |= BMAPI_TRYLOCK;
- }
+ trace_xfs_writepage(inode, page, 0);
+
+ ASSERT(page_has_buffers(page));
+
+ /*
+ * Refuse to write the page out if we are called from reclaim context.
+ *
+ * This avoids stack overflows when called from deeply used stacks in
+ * random callers for direct reclaim or memcg reclaim. We explicitly
+ * allow reclaim from kswapd as the stack usage there is relatively low.
+ *
+ * This should really be done by the core VM, but until that happens
+ * filesystems like XFS, btrfs and ext4 have to take care of this
+ * by themselves.
+ */
+ if ((current->flags & (PF_MEMALLOC|PF_KSWAPD)) == PF_MEMALLOC)
+ goto out_fail;
+
+ /*
+ * We need a transaction if there are delalloc or unwritten buffers
+ * on the page.
+ *
+ * If we need a transaction and the process flags say we are already
+ * in a transaction, or no IO is allowed then mark the page dirty
+ * again and leave the page as is.
+ */
+ xfs_count_page_state(page, &delalloc, &unwritten);
+ if ((current->flags & PF_FSTRANS) && (delalloc || unwritten))
+ goto out_fail;
/* Is this page beyond the end of the file? */
offset = i_size_read(inode);
@@ -1084,50 +1089,33 @@ xfs_page_state_convert(
if (page->index >= end_index) {
if ((page->index >= end_index + 1) ||
!(i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) {
- if (startio)
- unlock_page(page);
+ unlock_page(page);
return 0;
}
}
- /*
- * page_dirty is initially a count of buffers on the page before
- * EOF and is decremented as we move each into a cleanable state.
- *
- * Derivation:
- *
- * End offset is the highest offset that this page should represent.
- * If we are on the last page, (end_offset & (PAGE_CACHE_SIZE - 1))
- * will evaluate non-zero and be less than PAGE_CACHE_SIZE and
- * hence give us the correct page_dirty count. On any other page,
- * it will be zero and in that case we need page_dirty to be the
- * count of buffers on the page.
- */
end_offset = min_t(unsigned long long,
- (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT, offset);
+ (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT,
+ offset);
len = 1 << inode->i_blkbits;
- p_offset = min_t(unsigned long, end_offset & (PAGE_CACHE_SIZE - 1),
- PAGE_CACHE_SIZE);
- p_offset = p_offset ? roundup(p_offset, len) : PAGE_CACHE_SIZE;
- page_dirty = p_offset / len;
bh = head = page_buffers(page);
offset = page_offset(page);
flags = BMAPI_READ;
type = IO_NEW;
- /* TODO: cleanup count and page_dirty */
-
do {
if (offset >= end_offset)
break;
if (!buffer_uptodate(bh))
uptodate = 0;
- if (!(PageUptodate(page) || buffer_uptodate(bh)) && !startio) {
- /*
- * the iomap is actually still valid, but the ioend
- * isn't. shouldn't happen too often.
- */
+
+ /*
+ * A hole may still be marked uptodate because discard_buffer
+ * leaves the flag set.
+ */
+ if (!buffer_mapped(bh) && buffer_uptodate(bh)) {
+ ASSERT(!buffer_dirty(bh));
imap_valid = 0;
continue;
}
@@ -1135,19 +1123,7 @@ xfs_page_state_convert(
if (imap_valid)
imap_valid = xfs_imap_valid(inode, &imap, offset);
- /*
- * First case, map an unwritten extent and prepare for
- * extent state conversion transaction on completion.
- *
- * Second case, allocate space for a delalloc buffer.
- * We can return EAGAIN here in the release page case.
- *
- * Third case, an unmapped buffer was found, and we are
- * in a path where we need to write the whole page out.
- */
- if (buffer_unwritten(bh) || buffer_delay(bh) ||
- ((buffer_uptodate(bh) || PageUptodate(page)) &&
- !buffer_mapped(bh) && (unmapped || startio))) {
+ if (buffer_unwritten(bh) || buffer_delay(bh)) {
int new_ioend = 0;
/*
@@ -1161,15 +1137,16 @@ xfs_page_state_convert(
flags = BMAPI_WRITE | BMAPI_IGNSTATE;
} else if (buffer_delay(bh)) {
type = IO_DELAY;
- flags = BMAPI_ALLOCATE | trylock;
- } else {
- type = IO_NEW;
- flags = BMAPI_WRITE | BMAPI_MMAP;
+ flags = BMAPI_ALLOCATE;
+
+ if (wbc->sync_mode == WB_SYNC_NONE &&
+ wbc->nonblocking)
+ flags |= BMAPI_TRYLOCK;
}
if (!imap_valid) {
/*
- * if we didn't have a valid mapping then we
+ * If we didn't have a valid mapping then we
* need to ensure that we put the new mapping
* in a new ioend structure. This needs to be
* done to ensure that the ioends correctly
@@ -1177,14 +1154,7 @@ xfs_page_state_convert(
* for unwritten extent conversion.
*/
new_ioend = 1;
- if (type == IO_NEW) {
- size = xfs_probe_cluster(inode,
- page, bh, head, 0);
- } else {
- size = len;
- }
-
- err = xfs_map_blocks(inode, offset, size,
+ err = xfs_map_blocks(inode, offset, len,
&imap, flags);
if (err)
goto error;
@@ -1193,19 +1163,11 @@ xfs_page_state_convert(
}
if (imap_valid) {
xfs_map_at_offset(inode, bh, &imap, offset);
- if (startio) {
- xfs_add_to_ioend(inode, bh, offset,
- type, &ioend,
- new_ioend);
- } else {
- set_buffer_dirty(bh);
- unlock_buffer(bh);
- mark_buffer_dirty(bh);
- }
- page_dirty--;
+ xfs_add_to_ioend(inode, bh, offset, type,
+ &ioend, new_ioend);
count++;
}
- } else if (buffer_uptodate(bh) && startio) {
+ } else if (buffer_uptodate(bh)) {
/*
* we got here because the buffer is already mapped.
* That means it must already have extents allocated
@@ -1213,8 +1175,7 @@ xfs_page_state_convert(
*/
if (!imap_valid || flags != BMAPI_READ) {
flags = BMAPI_READ;
- size = xfs_probe_cluster(inode, page, bh,
- head, 1);
+ size = xfs_probe_cluster(inode, page, bh, head);
err = xfs_map_blocks(inode, offset, size,
&imap, flags);
if (err)
@@ -1233,18 +1194,16 @@ xfs_page_state_convert(
*/
type = IO_NEW;
if (trylock_buffer(bh)) {
- ASSERT(buffer_mapped(bh));
if (imap_valid)
all_bh = 1;
xfs_add_to_ioend(inode, bh, offset, type,
&ioend, !imap_valid);
- page_dirty--;
count++;
} else {
imap_valid = 0;
}
- } else if ((buffer_uptodate(bh) || PageUptodate(page)) &&
- (unmapped || startio)) {
+ } else if (PageUptodate(page)) {
+ ASSERT(buffer_mapped(bh));
imap_valid = 0;
}
@@ -1256,8 +1215,7 @@ xfs_page_state_convert(
if (uptodate && bh == head)
SetPageUptodate(page);
- if (startio)
- xfs_start_page_writeback(page, 1, count);
+ xfs_start_page_writeback(page, 1, count);
if (ioend && imap_valid) {
xfs_off_t end_index;
@@ -1275,131 +1233,27 @@ xfs_page_state_convert(
end_index = last_index;
xfs_cluster_write(inode, page->index + 1, &imap, &ioend,
- wbc, startio, all_bh, end_index);
+ wbc, all_bh, end_index);
}
if (iohead)
xfs_submit_ioend(wbc, iohead);
- return page_dirty;
+ return 0;
error:
if (iohead)
xfs_cancel_ioend(iohead);
- /*
- * If it's delalloc and we have nowhere to put it,
- * throw it away, unless the lower layers told
- * us to try again.
- */
- if (err != -EAGAIN) {
- if (!unmapped)
- xfs_aops_discard_page(page);
- ClearPageUptodate(page);
- }
+ xfs_aops_discard_page(page);
+ ClearPageUptodate(page);
+ unlock_page(page);
return err;
-}
-
-/*
- * writepage: Called from one of two places:
- *
- * 1. we are flushing a delalloc buffer head.
- *
- * 2. we are writing out a dirty page. Typically the page dirty
- * state is cleared before we get here. In this case is it
- * conceivable we have no buffer heads.
- *
- * For delalloc space on the page we need to allocate space and
- * flush it. For unmapped buffer heads on the page we should
- * allocate space if the page is uptodate. For any other dirty
- * buffer heads on the page we should flush them.
- *
- * If we detect that a transaction would be required to flush
- * the page, we have to check the process flags first, if we
- * are already in a transaction or disk I/O during allocations
- * is off, we need to fail the writepage and redirty the page.
- */
-
-STATIC int
-xfs_vm_writepage(
- struct page *page,
- struct writeback_control *wbc)
-{
- int error;
- int need_trans;
- int delalloc, unmapped, unwritten;
- struct inode *inode = page->mapping->host;
-
- trace_xfs_writepage(inode, page, 0);
-
- /*
- * Refuse to write the page out if we are called from reclaim context.
- *
- * This is primarily to avoid stack overflows when called from deep
- * used stacks in random callers for direct reclaim, but disabling
- * reclaim for kswap is a nice side-effect as kswapd causes rather
- * suboptimal I/O patters, too.
- *
- * This should really be done by the core VM, but until that happens
- * filesystems like XFS, btrfs and ext4 have to take care of this
- * by themselves.
- */
- if (current->flags & PF_MEMALLOC)
- goto out_fail;
-
- /*
- * We need a transaction if:
- * 1. There are delalloc buffers on the page
- * 2. The page is uptodate and we have unmapped buffers
- * 3. The page is uptodate and we have no buffers
- * 4. There are unwritten buffers on the page
- */
-
- if (!page_has_buffers(page)) {
- unmapped = 1;
- need_trans = 1;
- } else {
- xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
- if (!PageUptodate(page))
- unmapped = 0;
- need_trans = delalloc + unmapped + unwritten;
- }
-
- /*
- * If we need a transaction and the process flags say
- * we are already in a transaction, or no IO is allowed
- * then mark the page dirty again and leave the page
- * as is.
- */
- if (current_test_flags(PF_FSTRANS) && need_trans)
- goto out_fail;
-
- /*
- * Delay hooking up buffer heads until we have
- * made our go/no-go decision.
- */
- if (!page_has_buffers(page))
- create_empty_buffers(page, 1 << inode->i_blkbits, 0);
-
- /*
- * Convert delayed allocate, unwritten or unmapped space
- * to real space and flush out to disk.
- */
- error = xfs_page_state_convert(inode, page, wbc, 1, unmapped);
- if (error == -EAGAIN)
- goto out_fail;
- if (unlikely(error < 0))
- goto out_unlock;
-
- return 0;
out_fail:
redirty_page_for_writepage(wbc, page);
unlock_page(page);
return 0;
-out_unlock:
- unlock_page(page);
- return error;
}
STATIC int
@@ -1413,65 +1267,27 @@ xfs_vm_writepages(
/*
* Called to move a page into cleanable state - and from there
- * to be released. Possibly the page is already clean. We always
+ * to be released. The page should already be clean. We always
* have buffer heads in this call.
*
- * Returns 0 if the page is ok to release, 1 otherwise.
- *
- * Possible scenarios are:
- *
- * 1. We are being called to release a page which has been written
- * to via regular I/O. buffer heads will be dirty and possibly
- * delalloc. If no delalloc buffer heads in this case then we
- * can just return zero.
- *
- * 2. We are called to release a page which has been written via
- * mmap, all we need to do is ensure there is no delalloc
- * state in the buffer heads, if not we can let the caller
- * free them and we should come back later via writepage.
+ * Returns 1 if the page is ok to release, 0 otherwise.
*/
STATIC int
xfs_vm_releasepage(
struct page *page,
gfp_t gfp_mask)
{
- struct inode *inode = page->mapping->host;
- int dirty, delalloc, unmapped, unwritten;
- struct writeback_control wbc = {
- .sync_mode = WB_SYNC_ALL,
- .nr_to_write = 1,
- };
+ int delalloc, unwritten;
- trace_xfs_releasepage(inode, page, 0);
-
- if (!page_has_buffers(page))
- return 0;
+ trace_xfs_releasepage(page->mapping->host, page, 0);
- xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
- if (!delalloc && !unwritten)
- goto free_buffers;
+ xfs_count_page_state(page, &delalloc, &unwritten);
- if (!(gfp_mask & __GFP_FS))
+ if (WARN_ON(delalloc))
return 0;
-
- /* If we are already inside a transaction or the thread cannot
- * do I/O, we cannot release this page.
- */
- if (current_test_flags(PF_FSTRANS))
+ if (WARN_ON(unwritten))
return 0;
- /*
- * Convert delalloc space to real space, do not flush the
- * data out to disk, that will be done by the caller.
- * Never need to allocate space here - we will always
- * come back to writepage in that case.
- */
- dirty = xfs_page_state_convert(inode, page, &wbc, 0, 0);
- if (dirty == 0 && !unwritten)
- goto free_buffers;
- return 0;
-
-free_buffers:
return try_to_free_buffers(page);
}
@@ -1481,9 +1297,9 @@ __xfs_get_blocks(
sector_t iblock,
struct buffer_head *bh_result,
int create,
- int direct,
- bmapi_flags_t flags)
+ int direct)
{
+ int flags = create ? BMAPI_WRITE : BMAPI_READ;
struct xfs_bmbt_irec imap;
xfs_off_t offset;
ssize_t size;
@@ -1498,8 +1314,11 @@ __xfs_get_blocks(
if (!create && direct && offset >= i_size_read(inode))
return 0;
- error = xfs_iomap(XFS_I(inode), offset, size,
- create ? flags : BMAPI_READ, &imap, &nimap, &new);
+ if (direct && create)
+ flags |= BMAPI_DIRECT;
+
+ error = xfs_iomap(XFS_I(inode), offset, size, flags, &imap, &nimap,
+ &new);
if (error)
return -error;
if (nimap == 0)
@@ -1579,8 +1398,7 @@ xfs_get_blocks(
struct buffer_head *bh_result,
int create)
{
- return __xfs_get_blocks(inode, iblock,
- bh_result, create, 0, BMAPI_WRITE);
+ return __xfs_get_blocks(inode, iblock, bh_result, create, 0);
}
STATIC int
@@ -1590,61 +1408,59 @@ xfs_get_blocks_direct(
struct buffer_head *bh_result,
int create)
{
- return __xfs_get_blocks(inode, iblock,
- bh_result, create, 1, BMAPI_WRITE|BMAPI_DIRECT);
+ return __xfs_get_blocks(inode, iblock, bh_result, create, 1);
}
+/*
+ * Complete a direct I/O write request.
+ *
+ * If the private argument is non-NULL __xfs_get_blocks signals us that we
+ * need to issue a transaction to convert the range from unwritten to written
+ * extents. In case this is regular synchronous I/O we just call xfs_end_io
+ * to do this and we are done. But in case this was a successfull AIO
+ * request this handler is called from interrupt context, from which we
+ * can't start transactions. In that case offload the I/O completion to
+ * the workqueues we also use for buffered I/O completion.
+ */
STATIC void
-xfs_end_io_direct(
- struct kiocb *iocb,
- loff_t offset,
- ssize_t size,
- void *private)
+xfs_end_io_direct_write(
+ struct kiocb *iocb,
+ loff_t offset,
+ ssize_t size,
+ void *private,
+ int ret,
+ bool is_async)
{
- xfs_ioend_t *ioend = iocb->private;
+ struct xfs_ioend *ioend = iocb->private;
/*
- * Non-NULL private data means we need to issue a transaction to
- * convert a range from unwritten to written extents. This needs
- * to happen from process context but aio+dio I/O completion
- * happens from irq context so we need to defer it to a workqueue.
- * This is not necessary for synchronous direct I/O, but we do
- * it anyway to keep the code uniform and simpler.
- *
- * Well, if only it were that simple. Because synchronous direct I/O
- * requires extent conversion to occur *before* we return to userspace,
- * we have to wait for extent conversion to complete. Look at the
- * iocb that has been passed to us to determine if this is AIO or
- * not. If it is synchronous, tell xfs_finish_ioend() to kick the
- * workqueue and wait for it to complete.
- *
- * The core direct I/O code might be changed to always call the
- * completion handler in the future, in which case all this can
- * go away.
+ * blockdev_direct_IO can return an error even after the I/O
+ * completion handler was called. Thus we need to protect
+ * against double-freeing.
*/
+ iocb->private = NULL;
+
ioend->io_offset = offset;
ioend->io_size = size;
- if (ioend->io_type == IO_READ) {
- xfs_finish_ioend(ioend, 0);
- } else if (private && size > 0) {
- xfs_finish_ioend(ioend, is_sync_kiocb(iocb));
- } else {
+ if (private && size > 0)
+ ioend->io_type = IO_UNWRITTEN;
+
+ if (is_async) {
/*
- * A direct I/O write ioend starts it's life in unwritten
- * state in case they map an unwritten extent. This write
- * didn't map an unwritten extent so switch it's completion
- * handler.
+ * If we are converting an unwritten extent we need to delay
+ * the AIO completion until after the unwrittent extent
+ * conversion has completed, otherwise do it ASAP.
*/
- ioend->io_type = IO_NEW;
- xfs_finish_ioend(ioend, 0);
+ if (ioend->io_type == IO_UNWRITTEN) {
+ ioend->io_iocb = iocb;
+ ioend->io_result = ret;
+ } else {
+ aio_complete(iocb, ret, 0);
+ }
+ xfs_finish_ioend(ioend);
+ } else {
+ xfs_finish_ioend_sync(ioend);
}
-
- /*
- * blockdev_direct_IO can return an error even after the I/O
- * completion handler was called. Thus we need to protect
- * against double-freeing.
- */
- iocb->private = NULL;
}
STATIC ssize_t
@@ -1655,23 +1471,26 @@ xfs_vm_direct_IO(
loff_t offset,
unsigned long nr_segs)
{
- struct file *file = iocb->ki_filp;
- struct inode *inode = file->f_mapping->host;
- struct block_device *bdev;
- ssize_t ret;
-
- bdev = xfs_find_bdev_for_inode(inode);
-
- iocb->private = xfs_alloc_ioend(inode, rw == WRITE ?
- IO_UNWRITTEN : IO_READ);
-
- ret = blockdev_direct_IO_no_locking(rw, iocb, inode, bdev, iov,
- offset, nr_segs,
- xfs_get_blocks_direct,
- xfs_end_io_direct);
+ struct inode *inode = iocb->ki_filp->f_mapping->host;
+ struct block_device *bdev = xfs_find_bdev_for_inode(inode);
+ ssize_t ret;
+
+ if (rw & WRITE) {
+ iocb->private = xfs_alloc_ioend(inode, IO_NEW);
+
+ ret = blockdev_direct_IO_no_locking(rw, iocb, inode, bdev, iov,
+ offset, nr_segs,
+ xfs_get_blocks_direct,
+ xfs_end_io_direct_write);
+ if (ret != -EIOCBQUEUED && iocb->private)
+ xfs_destroy_ioend(iocb->private);
+ } else {
+ ret = blockdev_direct_IO_no_locking(rw, iocb, inode, bdev, iov,
+ offset, nr_segs,
+ xfs_get_blocks_direct,
+ NULL);
+ }
- if (unlikely(ret != -EIOCBQUEUED && iocb->private))
- xfs_destroy_ioend(iocb->private);
return ret;
}
@@ -1686,8 +1505,8 @@ xfs_vm_write_begin(
void **fsdata)
{
*pagep = NULL;
- return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
- xfs_get_blocks);
+ return block_write_begin(file, mapping, pos, len, flags | AOP_FLAG_NOFS,
+ pagep, fsdata, xfs_get_blocks);
}
STATIC sector_t
@@ -1698,7 +1517,7 @@ xfs_vm_bmap(
struct inode *inode = (struct inode *)mapping->host;
struct xfs_inode *ip = XFS_I(inode);
- xfs_itrace_entry(XFS_I(inode));
+ trace_xfs_vm_bmap(XFS_I(inode));
xfs_ilock(ip, XFS_IOLOCK_SHARED);
xfs_flush_pages(ip, (xfs_off_t)0, -1, 0, FI_REMAPF);
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
diff --git a/fs/xfs/linux-2.6/xfs_aops.h b/fs/xfs/linux-2.6/xfs_aops.h
index 4cfc6ea..c5057fb 100644
--- a/fs/xfs/linux-2.6/xfs_aops.h
+++ b/fs/xfs/linux-2.6/xfs_aops.h
@@ -37,6 +37,8 @@ typedef struct xfs_ioend {
size_t io_size; /* size of the extent */
xfs_off_t io_offset; /* offset in the file */
struct work_struct io_work; /* xfsdatad work queue */
+ struct kiocb *io_iocb;
+ int io_result;
} xfs_ioend_t;
extern const struct address_space_operations xfs_address_space_operations;
@@ -45,6 +47,6 @@ extern int xfs_get_blocks(struct inode *, sector_t, struct buffer_head *, int);
extern void xfs_ioend_init(void);
extern void xfs_ioend_wait(struct xfs_inode *);
-extern void xfs_count_page_state(struct page *, int *, int *, int *);
+extern void xfs_count_page_state(struct page *, int *, int *);
#endif /* __XFS_AOPS_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 649ade8..ea79072 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -39,13 +39,12 @@
#include "xfs_inum.h"
#include "xfs_log.h"
#include "xfs_ag.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_trace.h"
static kmem_zone_t *xfs_buf_zone;
STATIC int xfsbufd(void *);
-STATIC int xfsbufd_wakeup(int, gfp_t);
+STATIC int xfsbufd_wakeup(struct shrinker *, int, gfp_t);
STATIC void xfs_buf_delwri_queue(xfs_buf_t *, int);
static struct shrinker xfs_buf_shake = {
.shrink = xfsbufd_wakeup,
@@ -340,7 +339,7 @@ _xfs_buf_lookup_pages(
__func__, gfp_mask);
XFS_STATS_INC(xb_page_retries);
- xfsbufd_wakeup(0, gfp_mask);
+ xfsbufd_wakeup(NULL, 0, gfp_mask);
congestion_wait(BLK_RW_ASYNC, HZ/50);
goto retry;
}
@@ -579,9 +578,9 @@ _xfs_buf_read(
XBF_READ_AHEAD | _XBF_RUN_QUEUES);
status = xfs_buf_iorequest(bp);
- if (!status && !(flags & XBF_ASYNC))
- status = xfs_buf_iowait(bp);
- return status;
+ if (status || XFS_BUF_ISERROR(bp) || (flags & XBF_ASYNC))
+ return status;
+ return xfs_buf_iowait(bp);
}
xfs_buf_t *
@@ -897,36 +896,6 @@ xfs_buf_unlock(
trace_xfs_buf_unlock(bp, _RET_IP_);
}
-
-/*
- * Pinning Buffer Storage in Memory
- * Ensure that no attempt to force a buffer to disk will succeed.
- */
-void
-xfs_buf_pin(
- xfs_buf_t *bp)
-{
- trace_xfs_buf_pin(bp, _RET_IP_);
- atomic_inc(&bp->b_pin_count);
-}
-
-void
-xfs_buf_unpin(
- xfs_buf_t *bp)
-{
- trace_xfs_buf_unpin(bp, _RET_IP_);
-
- if (atomic_dec_and_test(&bp->b_pin_count))
- wake_up_all(&bp->b_waiters);
-}
-
-int
-xfs_buf_ispin(
- xfs_buf_t *bp)
-{
- return atomic_read(&bp->b_pin_count);
-}
-
STATIC void
xfs_buf_wait_unpin(
xfs_buf_t *bp)
@@ -1018,13 +987,12 @@ xfs_bwrite(
{
int error;
- bp->b_strat = xfs_bdstrat_cb;
bp->b_mount = mp;
bp->b_flags |= XBF_WRITE;
bp->b_flags &= ~(XBF_ASYNC | XBF_READ);
xfs_buf_delwri_dequeue(bp);
- xfs_buf_iostrategy(bp);
+ xfs_bdstrat_cb(bp);
error = xfs_buf_iowait(bp);
if (error)
@@ -1040,7 +1008,6 @@ xfs_bdwrite(
{
trace_xfs_buf_bdwrite(bp, _RET_IP_);
- bp->b_strat = xfs_bdstrat_cb;
bp->b_mount = mp;
bp->b_flags &= ~XBF_READ;
@@ -1075,7 +1042,6 @@ xfs_bioerror(
XFS_BUF_UNDONE(bp);
XFS_BUF_STALE(bp);
- XFS_BUF_CLR_BDSTRAT_FUNC(bp);
xfs_biodone(bp);
return EIO;
@@ -1105,7 +1071,6 @@ xfs_bioerror_relse(
XFS_BUF_DONE(bp);
XFS_BUF_STALE(bp);
XFS_BUF_CLR_IODONE_FUNC(bp);
- XFS_BUF_CLR_BDSTRAT_FUNC(bp);
if (!(fl & XBF_ASYNC)) {
/*
* Mark b_error and B_ERROR _both_.
@@ -1311,8 +1276,19 @@ submit_io:
if (size)
goto next_chunk;
} else {
- bio_put(bio);
+ /*
+ * if we get here, no pages were added to the bio. However,
+ * we can't just error out here - if the pages are locked then
+ * we have to unlock them otherwise we can hang on a later
+ * access to the page.
+ */
xfs_buf_ioerror(bp, EIO);
+ if (bp->b_flags & _XBF_PAGE_LOCKED) {
+ int i;
+ for (i = 0; i < bp->b_page_count; i++)
+ unlock_page(bp->b_pages[i]);
+ }
+ bio_put(bio);
}
}
@@ -1762,6 +1738,7 @@ xfs_buf_runall_queues(
STATIC int
xfsbufd_wakeup(
+ struct shrinker *shrink,
int priority,
gfp_t mask)
{
@@ -1803,7 +1780,7 @@ xfs_buf_delwri_split(
trace_xfs_buf_delwri_split(bp, _RET_IP_);
ASSERT(bp->b_flags & XBF_DELWRI);
- if (!xfs_buf_ispin(bp) && !xfs_buf_cond_lock(bp)) {
+ if (!XFS_BUF_ISPINNED(bp) && !xfs_buf_cond_lock(bp)) {
if (!force &&
time_before(jiffies, bp->b_queuetime + age)) {
xfs_buf_unlock(bp);
@@ -1888,7 +1865,7 @@ xfsbufd(
struct xfs_buf *bp;
bp = list_first_entry(&tmp, struct xfs_buf, b_list);
list_del_init(&bp->b_list);
- xfs_buf_iostrategy(bp);
+ xfs_bdstrat_cb(bp);
count++;
}
if (count)
@@ -1935,7 +1912,7 @@ xfs_flush_buftarg(
bp->b_flags &= ~XBF_ASYNC;
list_add(&bp->b_list, &wait_list);
}
- xfs_buf_iostrategy(bp);
+ xfs_bdstrat_cb(bp);
}
if (wait) {
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index 5fbecef..d072e5f 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -44,57 +44,57 @@ typedef enum {
XBRW_ZERO = 3, /* Zero target memory */
} xfs_buf_rw_t;
-typedef enum {
- XBF_READ = (1 << 0), /* buffer intended for reading from device */
- XBF_WRITE = (1 << 1), /* buffer intended for writing to device */
- XBF_MAPPED = (1 << 2), /* buffer mapped (b_addr valid) */
- XBF_ASYNC = (1 << 4), /* initiator will not wait for completion */
- XBF_DONE = (1 << 5), /* all pages in the buffer uptodate */
- XBF_DELWRI = (1 << 6), /* buffer has dirty pages */
- XBF_STALE = (1 << 7), /* buffer has been staled, do not find it */
- XBF_FS_MANAGED = (1 << 8), /* filesystem controls freeing memory */
- XBF_ORDERED = (1 << 11), /* use ordered writes */
- XBF_READ_AHEAD = (1 << 12), /* asynchronous read-ahead */
- XBF_LOG_BUFFER = (1 << 13), /* this is a buffer used for the log */
-
- /* flags used only as arguments to access routines */
- XBF_LOCK = (1 << 14), /* lock requested */
- XBF_TRYLOCK = (1 << 15), /* lock requested, but do not wait */
- XBF_DONT_BLOCK = (1 << 16), /* do not block in current thread */
-
- /* flags used only internally */
- _XBF_PAGE_CACHE = (1 << 17),/* backed by pagecache */
- _XBF_PAGES = (1 << 18), /* backed by refcounted pages */
- _XBF_RUN_QUEUES = (1 << 19),/* run block device task queue */
- _XBF_DELWRI_Q = (1 << 21), /* buffer on delwri queue */
-
- /*
- * Special flag for supporting metadata blocks smaller than a FSB.
- *
- * In this case we can have multiple xfs_buf_t on a single page and
- * need to lock out concurrent xfs_buf_t readers as they only
- * serialise access to the buffer.
- *
- * If the FSB size >= PAGE_CACHE_SIZE case, we have no serialisation
- * between reads of the page. Hence we can have one thread read the
- * page and modify it, but then race with another thread that thinks
- * the page is not up-to-date and hence reads it again.
- *
- * The result is that the first modifcation to the page is lost.
- * This sort of AGF/AGI reading race can happen when unlinking inodes
- * that require truncation and results in the AGI unlinked list
- * modifications being lost.
- */
- _XBF_PAGE_LOCKED = (1 << 22),
-
- /*
- * If we try a barrier write, but it fails we have to communicate
- * this to the upper layers. Unfortunately b_error gets overwritten
- * when the buffer is re-issued so we have to add another flag to
- * keep this information.
- */
- _XFS_BARRIER_FAILED = (1 << 23),
-} xfs_buf_flags_t;
+#define XBF_READ (1 << 0) /* buffer intended for reading from device */
+#define XBF_WRITE (1 << 1) /* buffer intended for writing to device */
+#define XBF_MAPPED (1 << 2) /* buffer mapped (b_addr valid) */
+#define XBF_ASYNC (1 << 4) /* initiator will not wait for completion */
+#define XBF_DONE (1 << 5) /* all pages in the buffer uptodate */
+#define XBF_DELWRI (1 << 6) /* buffer has dirty pages */
+#define XBF_STALE (1 << 7) /* buffer has been staled, do not find it */
+#define XBF_FS_MANAGED (1 << 8) /* filesystem controls freeing memory */
+#define XBF_ORDERED (1 << 11)/* use ordered writes */
+#define XBF_READ_AHEAD (1 << 12)/* asynchronous read-ahead */
+#define XBF_LOG_BUFFER (1 << 13)/* this is a buffer used for the log */
+
+/* flags used only as arguments to access routines */
+#define XBF_LOCK (1 << 14)/* lock requested */
+#define XBF_TRYLOCK (1 << 15)/* lock requested, but do not wait */
+#define XBF_DONT_BLOCK (1 << 16)/* do not block in current thread */
+
+/* flags used only internally */
+#define _XBF_PAGE_CACHE (1 << 17)/* backed by pagecache */
+#define _XBF_PAGES (1 << 18)/* backed by refcounted pages */
+#define _XBF_RUN_QUEUES (1 << 19)/* run block device task queue */
+#define _XBF_DELWRI_Q (1 << 21)/* buffer on delwri queue */
+
+/*
+ * Special flag for supporting metadata blocks smaller than a FSB.
+ *
+ * In this case we can have multiple xfs_buf_t on a single page and
+ * need to lock out concurrent xfs_buf_t readers as they only
+ * serialise access to the buffer.
+ *
+ * If the FSB size >= PAGE_CACHE_SIZE case, we have no serialisation
+ * between reads of the page. Hence we can have one thread read the
+ * page and modify it, but then race with another thread that thinks
+ * the page is not up-to-date and hence reads it again.
+ *
+ * The result is that the first modifcation to the page is lost.
+ * This sort of AGF/AGI reading race can happen when unlinking inodes
+ * that require truncation and results in the AGI unlinked list
+ * modifications being lost.
+ */
+#define _XBF_PAGE_LOCKED (1 << 22)
+
+/*
+ * If we try a barrier write, but it fails we have to communicate
+ * this to the upper layers. Unfortunately b_error gets overwritten
+ * when the buffer is re-issued so we have to add another flag to
+ * keep this information.
+ */
+#define _XFS_BARRIER_FAILED (1 << 23)
+
+typedef unsigned int xfs_buf_flags_t;
#define XFS_BUF_FLAGS \
{ XBF_READ, "READ" }, \
@@ -187,7 +187,6 @@ typedef struct xfs_buf {
atomic_t b_io_remaining; /* #outstanding I/O requests */
xfs_buf_iodone_t b_iodone; /* I/O completion function */
xfs_buf_relse_t b_relse; /* releasing function */
- xfs_buf_bdstrat_t b_strat; /* pre-write function */
struct completion b_iowait; /* queue for I/O waiters */
void *b_fspriv;
void *b_fspriv2;
@@ -245,11 +244,6 @@ extern int xfs_buf_iowait(xfs_buf_t *);
extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *,
xfs_buf_rw_t);
-static inline int xfs_buf_iostrategy(xfs_buf_t *bp)
-{
- return bp->b_strat ? bp->b_strat(bp) : xfs_buf_iorequest(bp);
-}
-
static inline int xfs_buf_geterror(xfs_buf_t *bp)
{
return bp ? bp->b_error : ENOMEM;
@@ -258,11 +252,6 @@ static inline int xfs_buf_geterror(xfs_buf_t *bp)
/* Buffer Utility Routines */
extern xfs_caddr_t xfs_buf_offset(xfs_buf_t *, size_t);
-/* Pinning Buffer Storage in Memory */
-extern void xfs_buf_pin(xfs_buf_t *);
-extern void xfs_buf_unpin(xfs_buf_t *);
-extern int xfs_buf_ispin(xfs_buf_t *);
-
/* Delayed Write Buffer Routines */
extern void xfs_buf_delwri_dequeue(xfs_buf_t *);
extern void xfs_buf_delwri_promote(xfs_buf_t *);
@@ -326,8 +315,6 @@ extern void xfs_buf_terminate(void);
#define XFS_BUF_IODONE_FUNC(bp) ((bp)->b_iodone)
#define XFS_BUF_SET_IODONE_FUNC(bp, func) ((bp)->b_iodone = (func))
#define XFS_BUF_CLR_IODONE_FUNC(bp) ((bp)->b_iodone = NULL)
-#define XFS_BUF_SET_BDSTRAT_FUNC(bp, func) ((bp)->b_strat = (func))
-#define XFS_BUF_CLR_BDSTRAT_FUNC(bp) ((bp)->b_strat = NULL)
#define XFS_BUF_FSPRIVATE(bp, type) ((type)(bp)->b_fspriv)
#define XFS_BUF_SET_FSPRIVATE(bp, val) ((bp)->b_fspriv = (void*)(val))
@@ -351,7 +338,7 @@ extern void xfs_buf_terminate(void);
#define XFS_BUF_SET_VTYPE(bp, type) do { } while (0)
#define XFS_BUF_SET_REF(bp, ref) do { } while (0)
-#define XFS_BUF_ISPINNED(bp) xfs_buf_ispin(bp)
+#define XFS_BUF_ISPINNED(bp) atomic_read(&((bp)->b_pin_count))
#define XFS_BUF_VALUSEMA(bp) xfs_buf_lock_value(bp)
#define XFS_BUF_CPSEMA(bp) (xfs_buf_cond_lock(bp) == 0)
@@ -370,8 +357,6 @@ static inline void xfs_buf_relse(xfs_buf_t *bp)
xfs_buf_rele(bp);
}
-#define xfs_bpin(bp) xfs_buf_pin(bp)
-#define xfs_bunpin(bp) xfs_buf_unpin(bp)
#define xfs_biodone(bp) xfs_buf_ioend(bp, 0)
#define xfs_biomove(bp, off, len, data, rw) \
diff --git a/fs/xfs/linux-2.6/xfs_dmapi_priv.h b/fs/xfs/linux-2.6/xfs_dmapi_priv.h
deleted file mode 100644
index a8b0b16..0000000
--- a/fs/xfs/linux-2.6/xfs_dmapi_priv.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (c) 2000-2006 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#ifndef __XFS_DMAPI_PRIV_H__
-#define __XFS_DMAPI_PRIV_H__
-
-/*
- * Based on IO_ISDIRECT, decide which i_ flag is set.
- */
-#define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
- DM_FLAGS_IMUX : 0)
-#define DM_SEM_FLAG_WR (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_IMUX)
-
-#endif /*__XFS_DMAPI_PRIV_H__*/
diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index e7839ee..3764d74 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -23,13 +23,13 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_export.h"
#include "xfs_vnodeops.h"
#include "xfs_bmap_btree.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
+#include "xfs_trace.h"
/*
* Note that we only accept fileids which are long enough rather than allow
@@ -132,8 +132,7 @@ xfs_nfs_get_inode(
* fine and not an indication of a corrupted filesystem as clients can
* send invalid file handles and we have to handle it gracefully..
*/
- error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED,
- XFS_ILOCK_SHARED, &ip);
+ error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, 0, &ip);
if (error) {
/*
* EINVAL means the inode cluster doesn't exist anymore.
@@ -148,11 +147,10 @@ xfs_nfs_get_inode(
}
if (ip->i_d.di_gen != generation) {
- xfs_iput_new(ip, XFS_ILOCK_SHARED);
+ IRELE(ip);
return ERR_PTR(-ENOENT);
}
- xfs_iunlock(ip, XFS_ILOCK_SHARED);
return VFS_I(ip);
}
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 257a56b..ba8ad42 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -22,23 +22,15 @@
#include "xfs_inum.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_trans.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
#include "xfs_alloc.h"
-#include "xfs_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir2_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
#include "xfs_bmap.h"
#include "xfs_error.h"
-#include "xfs_rw.h"
#include "xfs_vnodeops.h"
#include "xfs_da_btree.h"
#include "xfs_ioctl.h"
@@ -108,7 +100,7 @@ xfs_file_fsync(
int error = 0;
int log_flushed = 0;
- xfs_itrace_entry(ip);
+ trace_xfs_file_fsync(ip);
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return -XFS_ERROR(EIO);
@@ -166,8 +158,7 @@ xfs_file_fsync(
* transaction. So we play it safe and fire off the
* transaction anyway.
*/
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
xfs_trans_set_sync(tp);
error = _xfs_trans_commit(tp, 0, &log_flushed);
@@ -275,20 +266,6 @@ xfs_file_aio_read(
mutex_lock(&inode->i_mutex);
xfs_ilock(ip, XFS_IOLOCK_SHARED);
- if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
- int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
- int iolock = XFS_IOLOCK_SHARED;
-
- ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, iocb->ki_pos, size,
- dmflags, &iolock);
- if (ret) {
- xfs_iunlock(ip, XFS_IOLOCK_SHARED);
- if (unlikely(ioflags & IO_ISDIRECT))
- mutex_unlock(&inode->i_mutex);
- return ret;
- }
- }
-
if (unlikely(ioflags & IO_ISDIRECT)) {
if (inode->i_mapping->nrpages) {
ret = -xfs_flushinval_pages(ip,
@@ -321,7 +298,6 @@ xfs_file_splice_read(
unsigned int flags)
{
struct xfs_inode *ip = XFS_I(infilp->f_mapping->host);
- struct xfs_mount *mp = ip->i_mount;
int ioflags = 0;
ssize_t ret;
@@ -335,18 +311,6 @@ xfs_file_splice_read(
xfs_ilock(ip, XFS_IOLOCK_SHARED);
- if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
- int iolock = XFS_IOLOCK_SHARED;
- int error;
-
- error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *ppos, count,
- FILP_DELAY_FLAG(infilp), &iolock);
- if (error) {
- xfs_iunlock(ip, XFS_IOLOCK_SHARED);
- return -error;
- }
- }
-
trace_xfs_file_splice_read(ip, count, *ppos, ioflags);
ret = generic_file_splice_read(infilp, ppos, pipe, count, flags);
@@ -367,7 +331,6 @@ xfs_file_splice_write(
{
struct inode *inode = outfilp->f_mapping->host;
struct xfs_inode *ip = XFS_I(inode);
- struct xfs_mount *mp = ip->i_mount;
xfs_fsize_t isize, new_size;
int ioflags = 0;
ssize_t ret;
@@ -382,18 +345,6 @@ xfs_file_splice_write(
xfs_ilock(ip, XFS_IOLOCK_EXCL);
- if (DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) && !(ioflags & IO_INVIS)) {
- int iolock = XFS_IOLOCK_EXCL;
- int error;
-
- error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, *ppos, count,
- FILP_DELAY_FLAG(outfilp), &iolock);
- if (error) {
- xfs_iunlock(ip, XFS_IOLOCK_EXCL);
- return -error;
- }
- }
-
new_size = *ppos + count;
xfs_ilock(ip, XFS_ILOCK_EXCL);
@@ -463,7 +414,7 @@ xfs_zero_last_block(
last_fsb = XFS_B_TO_FSBT(mp, isize);
nimaps = 1;
error = xfs_bmapi(NULL, ip, last_fsb, 1, 0, NULL, 0, &imap,
- &nimaps, NULL, NULL);
+ &nimaps, NULL);
if (error) {
return error;
}
@@ -558,7 +509,7 @@ xfs_zero_eof(
nimaps = 1;
zero_count_fsb = end_zero_fsb - start_zero_fsb + 1;
error = xfs_bmapi(NULL, ip, start_zero_fsb, zero_count_fsb,
- 0, NULL, 0, &imap, &nimaps, NULL, NULL);
+ 0, NULL, 0, &imap, &nimaps, NULL);
if (error) {
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
return error;
@@ -627,7 +578,6 @@ xfs_file_aio_write(
int ioflags = 0;
xfs_fsize_t isize, new_size;
int iolock;
- int eventsent = 0;
size_t ocount = 0, count;
int need_i_mutex;
@@ -673,33 +623,6 @@ start:
goto out_unlock_mutex;
}
- if ((DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) &&
- !(ioflags & IO_INVIS) && !eventsent)) {
- int dmflags = FILP_DELAY_FLAG(file);
-
- if (need_i_mutex)
- dmflags |= DM_FLAGS_IMUX;
-
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
- error = XFS_SEND_DATA(ip->i_mount, DM_EVENT_WRITE, ip,
- pos, count, dmflags, &iolock);
- if (error) {
- goto out_unlock_internal;
- }
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- eventsent = 1;
-
- /*
- * The iolock was dropped and reacquired in XFS_SEND_DATA
- * so we have to recheck the size when appending.
- * We will only "goto start;" once, since having sent the
- * event prevents another call to XFS_SEND_DATA, which is
- * what allows the size to change in the first place.
- */
- if ((file->f_flags & O_APPEND) && pos != ip->i_size)
- goto start;
- }
-
if (ioflags & IO_ISDIRECT) {
xfs_buftarg_t *target =
XFS_IS_REALTIME_INODE(ip) ?
@@ -830,22 +753,6 @@ write_retry:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
}
- if (ret == -ENOSPC &&
- DM_EVENT_ENABLED(ip, DM_EVENT_NOSPACE) && !(ioflags & IO_INVIS)) {
- xfs_iunlock(ip, iolock);
- if (need_i_mutex)
- mutex_unlock(&inode->i_mutex);
- error = XFS_SEND_NAMESP(ip->i_mount, DM_EVENT_NOSPACE, ip,
- DM_RIGHT_NULL, ip, DM_RIGHT_NULL, NULL, NULL,
- 0, 0, 0); /* Delay flag intentionally unused */
- if (need_i_mutex)
- mutex_lock(&inode->i_mutex);
- xfs_ilock(ip, iolock);
- if (error)
- goto out_unlock_internal;
- goto start;
- }
-
error = -ret;
if (ret <= 0)
goto out_unlock_internal;
@@ -1014,9 +921,6 @@ const struct file_operations xfs_file_operations = {
.open = xfs_file_open,
.release = xfs_file_release,
.fsync = xfs_file_fsync,
-#ifdef HAVE_FOP_OPEN_EXEC
- .open_exec = xfs_file_open_exec,
-#endif
};
const struct file_operations xfs_dir_file_operations = {
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index b6918d7..1f279b0 100644
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -21,10 +21,6 @@
#include "xfs_inode.h"
#include "xfs_trace.h"
-int fs_noerr(void) { return 0; }
-int fs_nosys(void) { return ENOSYS; }
-void fs_noval(void) { return; }
-
/*
* note: all filemap functions return negative error codes. These
* need to be inverted before returning to the xfs core functions.
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.h b/fs/xfs/linux-2.6/xfs_fs_subr.h
deleted file mode 100644
index 82bb19b..0000000
--- a/fs/xfs/linux-2.6/xfs_fs_subr.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#ifndef __XFS_FS_SUBR_H__
-#define __XFS_FS_SUBR_H__
-
-extern int fs_noerr(void);
-extern int fs_nosys(void);
-extern void fs_noval(void);
-
-#endif /* __XFS_FS_SUBR_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index e59a810..237f5ff 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -23,24 +23,15 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir2_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_ioctl.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
#include "xfs_rtalloc.h"
#include "xfs_itable.h"
#include "xfs_error.h"
-#include "xfs_rw.h"
#include "xfs_attr.h"
#include "xfs_bmap.h"
#include "xfs_buf_item.h"
@@ -908,7 +899,7 @@ xfs_ioctl_setattr(
struct xfs_dquot *olddquot = NULL;
int code;
- xfs_itrace_entry(ip);
+ trace_xfs_ioctl_setattr(ip);
if (mp->m_flags & XFS_MOUNT_RDONLY)
return XFS_ERROR(EROFS);
@@ -1043,8 +1034,7 @@ xfs_ioctl_setattr(
}
}
- xfs_trans_ijoin(tp, ip, lock_flags);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
/*
* Change file ownership. Must be the owner or privileged.
@@ -1116,16 +1106,7 @@ xfs_ioctl_setattr(
xfs_qm_dqrele(udqp);
xfs_qm_dqrele(gdqp);
- if (code)
- return code;
-
- if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE)) {
- XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL,
- NULL, DM_RIGHT_NULL, NULL, NULL, 0, 0,
- (mask & FSX_NONBLOCK) ? DM_FLAGS_NDELAY : 0);
- }
-
- return 0;
+ return code;
error_return:
xfs_qm_dqrele(udqp);
@@ -1301,7 +1282,7 @@ xfs_file_ioctl(
if (filp->f_mode & FMODE_NOCMTIME)
ioflags |= IO_INVIS;
- xfs_itrace_entry(ip);
+ trace_xfs_file_ioctl(ip);
switch (cmd) {
case XFS_IOC_ALLOCSP:
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index 52ed49e..6c83f7f 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -28,12 +28,8 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir2_sf.h"
#include "xfs_vnode.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
@@ -544,7 +540,7 @@ xfs_file_compat_ioctl(
if (filp->f_mode & FMODE_NOCMTIME)
ioflags |= IO_INVIS;
- xfs_itrace_entry(ip);
+ trace_xfs_file_compat_ioctl(ip);
switch (cmd) {
/* No size or alignment issues on any arch */
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 44f0b2d..536b81e 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -24,21 +24,13 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_bmap.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
#include "xfs_itable.h"
@@ -496,7 +488,7 @@ xfs_vn_getattr(
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
- xfs_itrace_entry(ip);
+ trace_xfs_getattr(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index facfb32..998a9d7 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -87,7 +87,6 @@
#include <xfs_aops.h>
#include <xfs_super.h>
#include <xfs_globals.h>
-#include <xfs_fs_subr.h>
#include <xfs_buf.h>
/*
diff --git a/fs/xfs/linux-2.6/xfs_quotaops.c b/fs/xfs/linux-2.6/xfs_quotaops.c
index 067cafb..29b9d64 100644
--- a/fs/xfs/linux-2.6/xfs_quotaops.c
+++ b/fs/xfs/linux-2.6/xfs_quotaops.c
@@ -16,7 +16,6 @@
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "xfs.h"
-#include "xfs_dmapi.h"
#include "xfs_sb.h"
#include "xfs_inum.h"
#include "xfs_log.h"
@@ -69,15 +68,15 @@ xfs_fs_set_xstate(
if (op != Q_XQUOTARM && !XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
- if (uflags & XFS_QUOTA_UDQ_ACCT)
+ if (uflags & FS_QUOTA_UDQ_ACCT)
flags |= XFS_UQUOTA_ACCT;
- if (uflags & XFS_QUOTA_PDQ_ACCT)
+ if (uflags & FS_QUOTA_PDQ_ACCT)
flags |= XFS_PQUOTA_ACCT;
- if (uflags & XFS_QUOTA_GDQ_ACCT)
+ if (uflags & FS_QUOTA_GDQ_ACCT)
flags |= XFS_GQUOTA_ACCT;
- if (uflags & XFS_QUOTA_UDQ_ENFD)
+ if (uflags & FS_QUOTA_UDQ_ENFD)
flags |= XFS_UQUOTA_ENFD;
- if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD))
+ if (uflags & (FS_QUOTA_PDQ_ENFD|FS_QUOTA_GDQ_ENFD))
flags |= XFS_OQUOTA_ENFD;
switch (op) {
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index f2d1718..758df946 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -25,14 +25,11 @@
#include "xfs_ag.h"
#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
@@ -43,7 +40,6 @@
#include "xfs_error.h"
#include "xfs_itable.h"
#include "xfs_fsops.h"
-#include "xfs_rw.h"
#include "xfs_attr.h"
#include "xfs_buf_item.h"
#include "xfs_utils.h"
@@ -94,7 +90,6 @@ mempool_t *xfs_ioend_pool;
#define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and
* unwritten extent conversion */
#define MNTOPT_NOBARRIER "nobarrier" /* .. disable */
-#define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */
#define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */
#define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */
#define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */
@@ -116,9 +111,6 @@ mempool_t *xfs_ioend_pool;
#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
#define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
#define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */
-#define MNTOPT_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */
-#define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */
-#define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */
#define MNTOPT_DELAYLOG "delaylog" /* Delayed loging enabled */
#define MNTOPT_NODELAYLOG "nodelaylog" /* Delayed loging disabled */
@@ -172,15 +164,13 @@ suffix_strtoul(char *s, char **endp, unsigned int base)
STATIC int
xfs_parseargs(
struct xfs_mount *mp,
- char *options,
- char **mtpt)
+ char *options)
{
struct super_block *sb = mp->m_super;
char *this_char, *value, *eov;
int dsunit = 0;
int dswidth = 0;
int iosize = 0;
- int dmapi_implies_ikeep = 1;
__uint8_t iosizelog = 0;
/*
@@ -243,15 +233,10 @@ xfs_parseargs(
if (!mp->m_logname)
return ENOMEM;
} else if (!strcmp(this_char, MNTOPT_MTPT)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- *mtpt = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
- if (!*mtpt)
- return ENOMEM;
+ cmn_err(CE_WARN,
+ "XFS: %s option not allowed on this system",
+ this_char);
+ return EINVAL;
} else if (!strcmp(this_char, MNTOPT_RTDEV)) {
if (!value || !*value) {
cmn_err(CE_WARN,
@@ -288,8 +273,6 @@ xfs_parseargs(
mp->m_flags &= ~XFS_MOUNT_GRPID;
} else if (!strcmp(this_char, MNTOPT_WSYNC)) {
mp->m_flags |= XFS_MOUNT_WSYNC;
- } else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) {
- mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC;
} else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
mp->m_flags |= XFS_MOUNT_NORECOVERY;
} else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
@@ -329,7 +312,6 @@ xfs_parseargs(
} else if (!strcmp(this_char, MNTOPT_IKEEP)) {
mp->m_flags |= XFS_MOUNT_IKEEP;
} else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
- dmapi_implies_ikeep = 0;
mp->m_flags &= ~XFS_MOUNT_IKEEP;
} else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
mp->m_flags &= ~XFS_MOUNT_COMPAT_IOSIZE;
@@ -370,12 +352,6 @@ xfs_parseargs(
} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_OQUOTA_ENFD;
- } else if (!strcmp(this_char, MNTOPT_DMAPI)) {
- mp->m_flags |= XFS_MOUNT_DMAPI;
- } else if (!strcmp(this_char, MNTOPT_XDSM)) {
- mp->m_flags |= XFS_MOUNT_DMAPI;
- } else if (!strcmp(this_char, MNTOPT_DMI)) {
- mp->m_flags |= XFS_MOUNT_DMAPI;
} else if (!strcmp(this_char, MNTOPT_DELAYLOG)) {
mp->m_flags |= XFS_MOUNT_DELAYLOG;
cmn_err(CE_WARN,
@@ -387,9 +363,11 @@ xfs_parseargs(
cmn_err(CE_WARN,
"XFS: ihashsize no longer used, option is deprecated.");
} else if (!strcmp(this_char, "osyncisdsync")) {
- /* no-op, this is now the default */
cmn_err(CE_WARN,
- "XFS: osyncisdsync is now the default, option is deprecated.");
+ "XFS: osyncisdsync has no effect, option is deprecated.");
+ } else if (!strcmp(this_char, "osyncisosync")) {
+ cmn_err(CE_WARN,
+ "XFS: osyncisosync has no effect, option is deprecated.");
} else if (!strcmp(this_char, "irixsgid")) {
cmn_err(CE_WARN,
"XFS: irixsgid is now a sysctl(2) variable, option is deprecated.");
@@ -430,12 +408,6 @@ xfs_parseargs(
return EINVAL;
}
- if ((mp->m_flags & XFS_MOUNT_DMAPI) && (!*mtpt || *mtpt[0] == '\0')) {
- printk("XFS: %s option needs the mount point option as well\n",
- MNTOPT_DMAPI);
- return EINVAL;
- }
-
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
cmn_err(CE_WARN,
"XFS: sunit and swidth must be specified together");
@@ -449,18 +421,6 @@ xfs_parseargs(
return EINVAL;
}
- /*
- * Applications using DMI filesystems often expect the
- * inode generation number to be monotonically increasing.
- * If we delete inode chunks we break this assumption, so
- * keep unused inode chunks on disk for DMI filesystems
- * until we come up with a better solution.
- * Note that if "ikeep" or "noikeep" mount options are
- * supplied, then they are honored.
- */
- if ((mp->m_flags & XFS_MOUNT_DMAPI) && dmapi_implies_ikeep)
- mp->m_flags |= XFS_MOUNT_IKEEP;
-
done:
if (!(mp->m_flags & XFS_MOUNT_NOALIGN)) {
/*
@@ -539,10 +499,8 @@ xfs_showargs(
{ XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC },
{ XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID },
{ XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY },
- { XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC },
{ XFS_MOUNT_ATTR2, "," MNTOPT_ATTR2 },
{ XFS_MOUNT_FILESTREAMS, "," MNTOPT_FILESTREAM },
- { XFS_MOUNT_DMAPI, "," MNTOPT_DMAPI },
{ XFS_MOUNT_GRPID, "," MNTOPT_GRPID },
{ XFS_MOUNT_DELAYLOG, "," MNTOPT_DELAYLOG },
{ 0, NULL }
@@ -947,7 +905,7 @@ xfs_fs_destroy_inode(
{
struct xfs_inode *ip = XFS_I(inode);
- xfs_itrace_entry(ip);
+ trace_xfs_destroy_inode(ip);
XFS_STATS_INC(vn_reclaim);
@@ -1063,10 +1021,8 @@ xfs_log_inode(
* an inode in another recent transaction. So we play it safe and
* fire off the transaction anyway.
*/
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
- xfs_trans_set_sync(tp);
error = xfs_trans_commit(tp, 0);
xfs_ilock_demote(ip, XFS_ILOCK_EXCL);
@@ -1082,27 +1038,18 @@ xfs_fs_write_inode(
struct xfs_mount *mp = ip->i_mount;
int error = EAGAIN;
- xfs_itrace_entry(ip);
+ trace_xfs_write_inode(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
if (wbc->sync_mode == WB_SYNC_ALL) {
/*
- * Make sure the inode has hit stable storage. By using the
- * log and the fsync transactions we reduce the IOs we have
- * to do here from two (log and inode) to just the log.
- *
- * Note: We still need to do a delwri write of the inode after
- * this to flush it to the backing buffer so that bulkstat
- * works properly if this is the first time the inode has been
- * written. Because we hold the ilock atomically over the
- * transaction commit and the inode flush we are guaranteed
- * that the inode is not pinned when it returns. If the flush
- * lock is already held, then the inode has already been
- * flushed once and we don't need to flush it again. Hence
- * the code will only flush the inode if it isn't already
- * being flushed.
+ * Make sure the inode has made it it into the log. Instead
+ * of forcing it all the way to stable storage using a
+ * synchronous transaction we let the log force inside the
+ * ->sync_fs call do that for thus, which reduces the number
+ * of synchronous log foces dramatically.
*/
xfs_ioend_wait(ip);
xfs_ilock(ip, XFS_ILOCK_SHARED);
@@ -1116,27 +1063,29 @@ xfs_fs_write_inode(
* We make this non-blocking if the inode is contended, return
* EAGAIN to indicate to the caller that they did not succeed.
* This prevents the flush path from blocking on inodes inside
- * another operation right now, they get caught later by xfs_sync.
+ * another operation right now, they get caught later by
+ * xfs_sync.
*/
if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED))
goto out;
- }
- if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip))
- goto out_unlock;
+ if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip))
+ goto out_unlock;
- /*
- * Now we have the flush lock and the inode is not pinned, we can check
- * if the inode is really clean as we know that there are no pending
- * transaction completions, it is not waiting on the delayed write
- * queue and there is no IO in progress.
- */
- if (xfs_inode_clean(ip)) {
- xfs_ifunlock(ip);
- error = 0;
- goto out_unlock;
+ /*
+ * Now we have the flush lock and the inode is not pinned, we
+ * can check if the inode is really clean as we know that
+ * there are no pending transaction completions, it is not
+ * waiting on the delayed write queue and there is no IO in
+ * progress.
+ */
+ if (xfs_inode_clean(ip)) {
+ xfs_ifunlock(ip);
+ error = 0;
+ goto out_unlock;
+ }
+ error = xfs_iflush(ip, 0);
}
- error = xfs_iflush(ip, 0);
out_unlock:
xfs_iunlock(ip, XFS_ILOCK_SHARED);
@@ -1156,7 +1105,8 @@ xfs_fs_clear_inode(
{
xfs_inode_t *ip = XFS_I(inode);
- xfs_itrace_entry(ip);
+ trace_xfs_clear_inode(ip);
+
XFS_STATS_INC(vn_rele);
XFS_STATS_INC(vn_remove);
XFS_STATS_DEC(vn_active);
@@ -1193,22 +1143,13 @@ xfs_fs_put_super(
{
struct xfs_mount *mp = XFS_M(sb);
+ /*
+ * Unregister the memory shrinker before we tear down the mount
+ * structure so we don't have memory reclaim racing with us here.
+ */
+ xfs_inode_shrinker_unregister(mp);
xfs_syncd_stop(mp);
- if (!(sb->s_flags & MS_RDONLY)) {
- /*
- * XXX(hch): this should be SYNC_WAIT.
- *
- * Or more likely not needed at all because the VFS is already
- * calling ->sync_fs after shutting down all filestem
- * operations and just before calling ->put_super.
- */
- xfs_sync_data(mp, 0);
- xfs_sync_attr(mp, 0);
- }
-
- XFS_SEND_PREUNMOUNT(mp);
-
/*
* Blow away any referenced inode in the filestreams cache.
* This can and will cause log traffic as inodes go inactive
@@ -1218,14 +1159,10 @@ xfs_fs_put_super(
XFS_bflush(mp->m_ddev_targp);
- XFS_SEND_UNMOUNT(mp);
-
xfs_unmountfs(mp);
xfs_freesb(mp);
- xfs_inode_shrinker_unregister(mp);
xfs_icsb_destroy_counters(mp);
xfs_close_devices(mp);
- xfs_dmops_put(mp);
xfs_free_fsname(mp);
kfree(mp);
}
@@ -1543,7 +1480,6 @@ xfs_fs_fill_super(
struct inode *root;
struct xfs_mount *mp = NULL;
int flags = 0, error = ENOMEM;
- char *mtpt = NULL;
mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL);
if (!mp)
@@ -1559,7 +1495,7 @@ xfs_fs_fill_super(
mp->m_super = sb;
sb->s_fs_info = mp;
- error = xfs_parseargs(mp, (char *)data, &mtpt);
+ error = xfs_parseargs(mp, (char *)data);
if (error)
goto out_free_fsname;
@@ -1571,16 +1507,12 @@ xfs_fs_fill_super(
#endif
sb->s_op = &xfs_super_operations;
- error = xfs_dmops_get(mp);
- if (error)
- goto out_free_fsname;
-
if (silent)
flags |= XFS_MFSI_QUIET;
error = xfs_open_devices(mp);
if (error)
- goto out_put_dmops;
+ goto out_free_fsname;
if (xfs_icsb_init_counters(mp))
mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB;
@@ -1608,8 +1540,6 @@ xfs_fs_fill_super(
if (error)
goto out_filestream_unmount;
- XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, mtpt, mp->m_fsname);
-
sb->s_magic = XFS_SB_MAGIC;
sb->s_blocksize = mp->m_sb.sb_blocksize;
sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1;
@@ -1638,7 +1568,6 @@ xfs_fs_fill_super(
xfs_inode_shrinker_register(mp);
- kfree(mtpt);
return 0;
out_filestream_unmount:
@@ -1648,11 +1577,8 @@ xfs_fs_fill_super(
out_destroy_counters:
xfs_icsb_destroy_counters(mp);
xfs_close_devices(mp);
- out_put_dmops:
- xfs_dmops_put(mp);
out_free_fsname:
xfs_free_fsname(mp);
- kfree(mtpt);
kfree(mp);
out:
return -error;
@@ -1759,6 +1685,12 @@ xfs_init_zones(void)
if (!xfs_trans_zone)
goto out_destroy_ifork_zone;
+ xfs_log_item_desc_zone =
+ kmem_zone_init(sizeof(struct xfs_log_item_desc),
+ "xfs_log_item_desc");
+ if (!xfs_log_item_desc_zone)
+ goto out_destroy_trans_zone;
+
/*
* The size of the zone allocated buf log item is the maximum
* size possible under XFS. This wastes a little bit of memory,
@@ -1768,7 +1700,7 @@ xfs_init_zones(void)
(((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) /
NBWORD) * sizeof(int))), "xfs_buf_item");
if (!xfs_buf_item_zone)
- goto out_destroy_trans_zone;
+ goto out_destroy_log_item_desc_zone;
xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) +
((XFS_EFD_MAX_FAST_EXTENTS - 1) *
@@ -1805,6 +1737,8 @@ xfs_init_zones(void)
kmem_zone_destroy(xfs_efd_zone);
out_destroy_buf_item_zone:
kmem_zone_destroy(xfs_buf_item_zone);
+ out_destroy_log_item_desc_zone:
+ kmem_zone_destroy(xfs_log_item_desc_zone);
out_destroy_trans_zone:
kmem_zone_destroy(xfs_trans_zone);
out_destroy_ifork_zone:
@@ -1835,6 +1769,7 @@ xfs_destroy_zones(void)
kmem_zone_destroy(xfs_efi_zone);
kmem_zone_destroy(xfs_efd_zone);
kmem_zone_destroy(xfs_buf_item_zone);
+ kmem_zone_destroy(xfs_log_item_desc_zone);
kmem_zone_destroy(xfs_trans_zone);
kmem_zone_destroy(xfs_ifork_zone);
kmem_zone_destroy(xfs_dabuf_zone);
@@ -1883,7 +1818,6 @@ init_xfs_fs(void)
goto out_cleanup_procfs;
vfs_initquota();
- xfs_inode_shrinker_init();
error = register_filesystem(&xfs_fs_type);
if (error)
@@ -1911,7 +1845,6 @@ exit_xfs_fs(void)
{
vfs_exitquota();
unregister_filesystem(&xfs_fs_type);
- xfs_inode_shrinker_destroy();
xfs_sysctl_unregister();
xfs_cleanup_procfs();
xfs_buf_terminate();
diff --git a/fs/xfs/linux-2.6/xfs_super.h b/fs/xfs/linux-2.6/xfs_super.h
index 519618e..1ef4a4d 100644
--- a/fs/xfs/linux-2.6/xfs_super.h
+++ b/fs/xfs/linux-2.6/xfs_super.h
@@ -56,12 +56,6 @@ extern void xfs_qm_exit(void);
# define XFS_BIGFS_STRING
#endif
-#ifdef CONFIG_XFS_DMAPI
-# define XFS_DMAPI_STRING "dmapi support, "
-#else
-# define XFS_DMAPI_STRING
-#endif
-
#ifdef DEBUG
# define XFS_DBG_STRING "debug"
#else
@@ -72,7 +66,6 @@ extern void xfs_qm_exit(void);
XFS_SECURITY_STRING \
XFS_REALTIME_STRING \
XFS_BIGFS_STRING \
- XFS_DMAPI_STRING \
XFS_DBG_STRING /* DBG must be last */
struct xfs_inode;
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index ef7f021..dfcbd98 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -24,25 +24,14 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_inode.h"
#include "xfs_dinode.h"
#include "xfs_error.h"
-#include "xfs_mru_cache.h"
#include "xfs_filestream.h"
#include "xfs_vnodeops.h"
-#include "xfs_utils.h"
-#include "xfs_buf_item.h"
#include "xfs_inode_item.h"
-#include "xfs_rw.h"
#include "xfs_quota.h"
#include "xfs_trace.h"
@@ -144,6 +133,41 @@ restart:
return last_error;
}
+/*
+ * Select the next per-ag structure to iterate during the walk. The reclaim
+ * walk is optimised only to walk AGs with reclaimable inodes in them.
+ */
+static struct xfs_perag *
+xfs_inode_ag_iter_next_pag(
+ struct xfs_mount *mp,
+ xfs_agnumber_t *first,
+ int tag)
+{
+ struct xfs_perag *pag = NULL;
+
+ if (tag == XFS_ICI_RECLAIM_TAG) {
+ int found;
+ int ref;
+
+ spin_lock(&mp->m_perag_lock);
+ found = radix_tree_gang_lookup_tag(&mp->m_perag_tree,
+ (void **)&pag, *first, 1, tag);
+ if (found <= 0) {
+ spin_unlock(&mp->m_perag_lock);
+ return NULL;
+ }
+ *first = pag->pag_agno + 1;
+ /* open coded pag reference increment */
+ ref = atomic_inc_return(&pag->pag_ref);
+ spin_unlock(&mp->m_perag_lock);
+ trace_xfs_perag_get_reclaim(mp, pag->pag_agno, ref, _RET_IP_);
+ } else {
+ pag = xfs_perag_get(mp, *first);
+ (*first)++;
+ }
+ return pag;
+}
+
int
xfs_inode_ag_iterator(
struct xfs_mount *mp,
@@ -154,16 +178,15 @@ xfs_inode_ag_iterator(
int exclusive,
int *nr_to_scan)
{
+ struct xfs_perag *pag;
int error = 0;
int last_error = 0;
xfs_agnumber_t ag;
int nr;
nr = nr_to_scan ? *nr_to_scan : INT_MAX;
- for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) {
- struct xfs_perag *pag;
-
- pag = xfs_perag_get(mp, ag);
+ ag = 0;
+ while ((pag = xfs_inode_ag_iter_next_pag(mp, &ag, tag))) {
error = xfs_inode_ag_walk(mp, pag, execute, flags, tag,
exclusive, &nr);
xfs_perag_put(pag);
@@ -285,7 +308,7 @@ xfs_sync_inode_attr(
/*
* Write out pagecache data for the whole filesystem.
*/
-int
+STATIC int
xfs_sync_data(
struct xfs_mount *mp,
int flags)
@@ -306,7 +329,7 @@ xfs_sync_data(
/*
* Write out inode metadata (attributes) for the whole filesystem.
*/
-int
+STATIC int
xfs_sync_attr(
struct xfs_mount *mp,
int flags)
@@ -339,8 +362,7 @@ xfs_commit_dummy_trans(
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
error = xfs_trans_commit(tp, 0);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
@@ -640,6 +662,17 @@ __xfs_inode_set_reclaim_tag(
radix_tree_tag_set(&pag->pag_ici_root,
XFS_INO_TO_AGINO(ip->i_mount, ip->i_ino),
XFS_ICI_RECLAIM_TAG);
+
+ if (!pag->pag_ici_reclaimable) {
+ /* propagate the reclaim tag up into the perag radix tree */
+ spin_lock(&ip->i_mount->m_perag_lock);
+ radix_tree_tag_set(&ip->i_mount->m_perag_tree,
+ XFS_INO_TO_AGNO(ip->i_mount, ip->i_ino),
+ XFS_ICI_RECLAIM_TAG);
+ spin_unlock(&ip->i_mount->m_perag_lock);
+ trace_xfs_perag_set_reclaim(ip->i_mount, pag->pag_agno,
+ -1, _RET_IP_);
+ }
pag->pag_ici_reclaimable++;
}
@@ -674,6 +707,16 @@ __xfs_inode_clear_reclaim_tag(
radix_tree_tag_clear(&pag->pag_ici_root,
XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG);
pag->pag_ici_reclaimable--;
+ if (!pag->pag_ici_reclaimable) {
+ /* clear the reclaim tag from the perag radix tree */
+ spin_lock(&ip->i_mount->m_perag_lock);
+ radix_tree_tag_clear(&ip->i_mount->m_perag_tree,
+ XFS_INO_TO_AGNO(ip->i_mount, ip->i_ino),
+ XFS_ICI_RECLAIM_TAG);
+ spin_unlock(&ip->i_mount->m_perag_lock);
+ trace_xfs_perag_clear_reclaim(ip->i_mount, pag->pag_agno,
+ -1, _RET_IP_);
+ }
}
/*
@@ -812,7 +855,36 @@ out:
reclaim:
xfs_ifunlock(ip);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
- xfs_ireclaim(ip);
+
+ XFS_STATS_INC(xs_ig_reclaims);
+ /*
+ * Remove the inode from the per-AG radix tree.
+ *
+ * Because radix_tree_delete won't complain even if the item was never
+ * added to the tree assert that it's been there before to catch
+ * problems with the inode life time early on.
+ */
+ write_lock(&pag->pag_ici_lock);
+ if (!radix_tree_delete(&pag->pag_ici_root,
+ XFS_INO_TO_AGINO(ip->i_mount, ip->i_ino)))
+ ASSERT(0);
+ write_unlock(&pag->pag_ici_lock);
+
+ /*
+ * Here we do an (almost) spurious inode lock in order to coordinate
+ * with inode cache radix tree lookups. This is because the lookup
+ * can reference the inodes in the cache without taking references.
+ *
+ * We make that OK here by ensuring that we wait until the inode is
+ * unlocked after the lookup before we go ahead and free it. We get
+ * both the ilock and the iolock because the code may need to drop the
+ * ilock one but will still hold the iolock.
+ */
+ xfs_ilock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+ xfs_qm_dqdetach(ip);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+
+ xfs_inode_free(ip);
return error;
}
@@ -828,83 +900,52 @@ xfs_reclaim_inodes(
/*
* Shrinker infrastructure.
- *
- * This is all far more complex than it needs to be. It adds a global list of
- * mounts because the shrinkers can only call a global context. We need to make
- * the shrinkers pass a context to avoid the need for global state.
*/
-static LIST_HEAD(xfs_mount_list);
-static struct rw_semaphore xfs_mount_list_lock;
-
static int
xfs_reclaim_inode_shrink(
+ struct shrinker *shrink,
int nr_to_scan,
gfp_t gfp_mask)
{
struct xfs_mount *mp;
struct xfs_perag *pag;
xfs_agnumber_t ag;
- int reclaimable = 0;
+ int reclaimable;
+ mp = container_of(shrink, struct xfs_mount, m_inode_shrink);
if (nr_to_scan) {
if (!(gfp_mask & __GFP_FS))
return -1;
- down_read(&xfs_mount_list_lock);
- list_for_each_entry(mp, &xfs_mount_list, m_mplist) {
- xfs_inode_ag_iterator(mp, xfs_reclaim_inode, 0,
+ xfs_inode_ag_iterator(mp, xfs_reclaim_inode, 0,
XFS_ICI_RECLAIM_TAG, 1, &nr_to_scan);
- if (nr_to_scan <= 0)
- break;
- }
- up_read(&xfs_mount_list_lock);
- }
+ /* if we don't exhaust the scan, don't bother coming back */
+ if (nr_to_scan > 0)
+ return -1;
+ }
- down_read(&xfs_mount_list_lock);
- list_for_each_entry(mp, &xfs_mount_list, m_mplist) {
- for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) {
- pag = xfs_perag_get(mp, ag);
- reclaimable += pag->pag_ici_reclaimable;
- xfs_perag_put(pag);
- }
+ reclaimable = 0;
+ ag = 0;
+ while ((pag = xfs_inode_ag_iter_next_pag(mp, &ag,
+ XFS_ICI_RECLAIM_TAG))) {
+ reclaimable += pag->pag_ici_reclaimable;
+ xfs_perag_put(pag);
}
- up_read(&xfs_mount_list_lock);
return reclaimable;
}
-static struct shrinker xfs_inode_shrinker = {
- .shrink = xfs_reclaim_inode_shrink,
- .seeks = DEFAULT_SEEKS,
-};
-
-void __init
-xfs_inode_shrinker_init(void)
-{
- init_rwsem(&xfs_mount_list_lock);
- register_shrinker(&xfs_inode_shrinker);
-}
-
-void
-xfs_inode_shrinker_destroy(void)
-{
- ASSERT(list_empty(&xfs_mount_list));
- unregister_shrinker(&xfs_inode_shrinker);
-}
-
void
xfs_inode_shrinker_register(
struct xfs_mount *mp)
{
- down_write(&xfs_mount_list_lock);
- list_add_tail(&mp->m_mplist, &xfs_mount_list);
- up_write(&xfs_mount_list_lock);
+ mp->m_inode_shrink.shrink = xfs_reclaim_inode_shrink;
+ mp->m_inode_shrink.seeks = DEFAULT_SEEKS;
+ register_shrinker(&mp->m_inode_shrink);
}
void
xfs_inode_shrinker_unregister(
struct xfs_mount *mp)
{
- down_write(&xfs_mount_list_lock);
- list_del(&mp->m_mplist);
- up_write(&xfs_mount_list_lock);
+ unregister_shrinker(&mp->m_inode_shrink);
}
diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h
index cdcbaac..fe78726 100644
--- a/fs/xfs/linux-2.6/xfs_sync.h
+++ b/fs/xfs/linux-2.6/xfs_sync.h
@@ -35,9 +35,6 @@ typedef struct xfs_sync_work {
int xfs_syncd_init(struct xfs_mount *mp);
void xfs_syncd_stop(struct xfs_mount *mp);
-int xfs_sync_attr(struct xfs_mount *mp, int flags);
-int xfs_sync_data(struct xfs_mount *mp, int flags);
-
int xfs_quiesce_data(struct xfs_mount *mp);
void xfs_quiesce_attr(struct xfs_mount *mp);
@@ -55,8 +52,6 @@ int xfs_inode_ag_iterator(struct xfs_mount *mp,
int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags),
int flags, int tag, int write_lock, int *nr_to_scan);
-void xfs_inode_shrinker_init(void);
-void xfs_inode_shrinker_destroy(void);
void xfs_inode_shrinker_register(struct xfs_mount *mp);
void xfs_inode_shrinker_unregister(struct xfs_mount *mp);
diff --git a/fs/xfs/linux-2.6/xfs_trace.c b/fs/xfs/linux-2.6/xfs_trace.c
index d12be84..88d25d4 100644
--- a/fs/xfs/linux-2.6/xfs_trace.c
+++ b/fs/xfs/linux-2.6/xfs_trace.c
@@ -24,17 +24,13 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_ialloc.h"
#include "xfs_itable.h"
diff --git a/fs/xfs/linux-2.6/xfs_trace.h b/fs/xfs/linux-2.6/xfs_trace.h
index 73d5aa1..c657cdc 100644
--- a/fs/xfs/linux-2.6/xfs_trace.h
+++ b/fs/xfs/linux-2.6/xfs_trace.h
@@ -124,7 +124,10 @@ DEFINE_EVENT(xfs_perag_class, name, \
unsigned long caller_ip), \
TP_ARGS(mp, agno, refcount, caller_ip))
DEFINE_PERAG_REF_EVENT(xfs_perag_get);
+DEFINE_PERAG_REF_EVENT(xfs_perag_get_reclaim);
DEFINE_PERAG_REF_EVENT(xfs_perag_put);
+DEFINE_PERAG_REF_EVENT(xfs_perag_set_reclaim);
+DEFINE_PERAG_REF_EVENT(xfs_perag_clear_reclaim);
TRACE_EVENT(xfs_attr_list_node_descend,
TP_PROTO(struct xfs_attr_list_context *ctx,
@@ -314,8 +317,6 @@ DEFINE_BUF_EVENT(xfs_buf_init);
DEFINE_BUF_EVENT(xfs_buf_free);
DEFINE_BUF_EVENT(xfs_buf_hold);
DEFINE_BUF_EVENT(xfs_buf_rele);
-DEFINE_BUF_EVENT(xfs_buf_pin);
-DEFINE_BUF_EVENT(xfs_buf_unpin);
DEFINE_BUF_EVENT(xfs_buf_iodone);
DEFINE_BUF_EVENT(xfs_buf_iorequest);
DEFINE_BUF_EVENT(xfs_buf_bawrite);
@@ -538,7 +539,7 @@ DEFINE_LOCK_EVENT(xfs_ilock_nowait);
DEFINE_LOCK_EVENT(xfs_ilock_demote);
DEFINE_LOCK_EVENT(xfs_iunlock);
-DECLARE_EVENT_CLASS(xfs_iget_class,
+DECLARE_EVENT_CLASS(xfs_inode_class,
TP_PROTO(struct xfs_inode *ip),
TP_ARGS(ip),
TP_STRUCT__entry(
@@ -554,16 +555,38 @@ DECLARE_EVENT_CLASS(xfs_iget_class,
__entry->ino)
)
-#define DEFINE_IGET_EVENT(name) \
-DEFINE_EVENT(xfs_iget_class, name, \
+#define DEFINE_INODE_EVENT(name) \
+DEFINE_EVENT(xfs_inode_class, name, \
TP_PROTO(struct xfs_inode *ip), \
TP_ARGS(ip))
-DEFINE_IGET_EVENT(xfs_iget_skip);
-DEFINE_IGET_EVENT(xfs_iget_reclaim);
-DEFINE_IGET_EVENT(xfs_iget_found);
-DEFINE_IGET_EVENT(xfs_iget_alloc);
-
-DECLARE_EVENT_CLASS(xfs_inode_class,
+DEFINE_INODE_EVENT(xfs_iget_skip);
+DEFINE_INODE_EVENT(xfs_iget_reclaim);
+DEFINE_INODE_EVENT(xfs_iget_reclaim_fail);
+DEFINE_INODE_EVENT(xfs_iget_hit);
+DEFINE_INODE_EVENT(xfs_iget_miss);
+
+DEFINE_INODE_EVENT(xfs_getattr);
+DEFINE_INODE_EVENT(xfs_setattr);
+DEFINE_INODE_EVENT(xfs_readlink);
+DEFINE_INODE_EVENT(xfs_alloc_file_space);
+DEFINE_INODE_EVENT(xfs_free_file_space);
+DEFINE_INODE_EVENT(xfs_readdir);
+#ifdef CONFIG_XFS_POSIX_ACL
+DEFINE_INODE_EVENT(xfs_check_acl);
+#endif
+DEFINE_INODE_EVENT(xfs_vm_bmap);
+DEFINE_INODE_EVENT(xfs_file_ioctl);
+DEFINE_INODE_EVENT(xfs_file_compat_ioctl);
+DEFINE_INODE_EVENT(xfs_ioctl_setattr);
+DEFINE_INODE_EVENT(xfs_file_fsync);
+DEFINE_INODE_EVENT(xfs_destroy_inode);
+DEFINE_INODE_EVENT(xfs_write_inode);
+DEFINE_INODE_EVENT(xfs_clear_inode);
+
+DEFINE_INODE_EVENT(xfs_dquot_dqalloc);
+DEFINE_INODE_EVENT(xfs_dquot_dqdetach);
+
+DECLARE_EVENT_CLASS(xfs_iref_class,
TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip),
TP_ARGS(ip, caller_ip),
TP_STRUCT__entry(
@@ -588,20 +611,71 @@ DECLARE_EVENT_CLASS(xfs_inode_class,
(char *)__entry->caller_ip)
)
-#define DEFINE_INODE_EVENT(name) \
-DEFINE_EVENT(xfs_inode_class, name, \
+#define DEFINE_IREF_EVENT(name) \
+DEFINE_EVENT(xfs_iref_class, name, \
TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), \
TP_ARGS(ip, caller_ip))
-DEFINE_INODE_EVENT(xfs_ihold);
-DEFINE_INODE_EVENT(xfs_irele);
-DEFINE_INODE_EVENT(xfs_inode_pin);
-DEFINE_INODE_EVENT(xfs_inode_unpin);
-DEFINE_INODE_EVENT(xfs_inode_unpin_nowait);
+DEFINE_IREF_EVENT(xfs_ihold);
+DEFINE_IREF_EVENT(xfs_irele);
+DEFINE_IREF_EVENT(xfs_inode_pin);
+DEFINE_IREF_EVENT(xfs_inode_unpin);
+DEFINE_IREF_EVENT(xfs_inode_unpin_nowait);
+
+DECLARE_EVENT_CLASS(xfs_namespace_class,
+ TP_PROTO(struct xfs_inode *dp, struct xfs_name *name),
+ TP_ARGS(dp, name),
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(xfs_ino_t, dp_ino)
+ __dynamic_array(char, name, name->len)
+ ),
+ TP_fast_assign(
+ __entry->dev = VFS_I(dp)->i_sb->s_dev;
+ __entry->dp_ino = dp->i_ino;
+ memcpy(__get_str(name), name->name, name->len);
+ ),
+ TP_printk("dev %d:%d dp ino 0x%llx name %s",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->dp_ino,
+ __get_str(name))
+)
-/* the old xfs_itrace_entry tracer - to be replaced by s.th. in the VFS */
-DEFINE_INODE_EVENT(xfs_inode);
-#define xfs_itrace_entry(ip) \
- trace_xfs_inode(ip, _THIS_IP_)
+#define DEFINE_NAMESPACE_EVENT(name) \
+DEFINE_EVENT(xfs_namespace_class, name, \
+ TP_PROTO(struct xfs_inode *dp, struct xfs_name *name), \
+ TP_ARGS(dp, name))
+DEFINE_NAMESPACE_EVENT(xfs_remove);
+DEFINE_NAMESPACE_EVENT(xfs_link);
+DEFINE_NAMESPACE_EVENT(xfs_lookup);
+DEFINE_NAMESPACE_EVENT(xfs_create);
+DEFINE_NAMESPACE_EVENT(xfs_symlink);
+
+TRACE_EVENT(xfs_rename,
+ TP_PROTO(struct xfs_inode *src_dp, struct xfs_inode *target_dp,
+ struct xfs_name *src_name, struct xfs_name *target_name),
+ TP_ARGS(src_dp, target_dp, src_name, target_name),
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(xfs_ino_t, src_dp_ino)
+ __field(xfs_ino_t, target_dp_ino)
+ __dynamic_array(char, src_name, src_name->len)
+ __dynamic_array(char, target_name, target_name->len)
+ ),
+ TP_fast_assign(
+ __entry->dev = VFS_I(src_dp)->i_sb->s_dev;
+ __entry->src_dp_ino = src_dp->i_ino;
+ __entry->target_dp_ino = target_dp->i_ino;
+ memcpy(__get_str(src_name), src_name->name, src_name->len);
+ memcpy(__get_str(target_name), target_name->name, target_name->len);
+ ),
+ TP_printk("dev %d:%d src dp ino 0x%llx target dp ino 0x%llx"
+ " src name %s target name %s",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->src_dp_ino,
+ __entry->target_dp_ino,
+ __get_str(src_name),
+ __get_str(target_name))
+)
DECLARE_EVENT_CLASS(xfs_dquot_class,
TP_PROTO(struct xfs_dquot *dqp),
@@ -681,9 +755,6 @@ DEFINE_DQUOT_EVENT(xfs_dqrele);
DEFINE_DQUOT_EVENT(xfs_dqflush);
DEFINE_DQUOT_EVENT(xfs_dqflush_force);
DEFINE_DQUOT_EVENT(xfs_dqflush_done);
-/* not really iget events, but we re-use the format */
-DEFINE_IGET_EVENT(xfs_dquot_dqalloc);
-DEFINE_IGET_EVENT(xfs_dquot_dqdetach);
DECLARE_EVENT_CLASS(xfs_loggrant_class,
TP_PROTO(struct log *log, struct xlog_ticket *tic),
@@ -831,33 +902,29 @@ DECLARE_EVENT_CLASS(xfs_page_class,
__field(loff_t, size)
__field(unsigned long, offset)
__field(int, delalloc)
- __field(int, unmapped)
__field(int, unwritten)
),
TP_fast_assign(
- int delalloc = -1, unmapped = -1, unwritten = -1;
+ int delalloc = -1, unwritten = -1;
if (page_has_buffers(page))
- xfs_count_page_state(page, &delalloc,
- &unmapped, &unwritten);
+ xfs_count_page_state(page, &delalloc, &unwritten);
__entry->dev = inode->i_sb->s_dev;
__entry->ino = XFS_I(inode)->i_ino;
__entry->pgoff = page_offset(page);
__entry->size = i_size_read(inode);
__entry->offset = off;
__entry->delalloc = delalloc;
- __entry->unmapped = unmapped;
__entry->unwritten = unwritten;
),
TP_printk("dev %d:%d ino 0x%llx pgoff 0x%lx size 0x%llx offset %lx "
- "delalloc %d unmapped %d unwritten %d",
+ "delalloc %d unwritten %d",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->ino,
__entry->pgoff,
__entry->size,
__entry->offset,
__entry->delalloc,
- __entry->unmapped,
__entry->unwritten)
)
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index 585e763..e1a2f68 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -23,25 +23,15 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
#include "xfs_inode.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
#include "xfs_bmap.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
#include "xfs_itable.h"
-#include "xfs_rw.h"
#include "xfs_attr.h"
#include "xfs_buf_item.h"
#include "xfs_trans_space.h"
@@ -64,8 +54,6 @@
flush lock - ditto.
*/
-STATIC void xfs_qm_dqflush_done(xfs_buf_t *, xfs_dq_logitem_t *);
-
#ifdef DEBUG
xfs_buftarg_t *xfs_dqerror_target;
int xfs_do_dqerror;
@@ -390,21 +378,14 @@ xfs_qm_dqalloc(
return (ESRCH);
}
- /*
- * xfs_trans_commit normally decrements the vnode ref count
- * when it unlocks the inode. Since we want to keep the quota
- * inode around, we bump the vnode ref count now.
- */
- IHOLD(quotip);
-
- xfs_trans_ijoin(tp, quotip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, quotip, XFS_ILOCK_EXCL);
nmaps = 1;
if ((error = xfs_bmapi(tp, quotip,
offset_fsb, XFS_DQUOT_CLUSTER_SIZE_FSB,
XFS_BMAPI_METADATA | XFS_BMAPI_WRITE,
&firstblock,
XFS_QM_DQALLOC_SPACE_RES(mp),
- &map, &nmaps, &flist, NULL))) {
+ &map, &nmaps, &flist))) {
goto error0;
}
ASSERT(map.br_blockcount == XFS_DQUOT_CLUSTER_SIZE_FSB);
@@ -520,7 +501,7 @@ xfs_qm_dqtobp(
error = xfs_bmapi(NULL, quotip, dqp->q_fileoffset,
XFS_DQUOT_CLUSTER_SIZE_FSB,
XFS_BMAPI_METADATA,
- NULL, 0, &map, &nmaps, NULL, NULL);
+ NULL, 0, &map, &nmaps, NULL);
xfs_iunlock(quotip, XFS_ILOCK_SHARED);
if (error)
@@ -1141,6 +1122,46 @@ xfs_qm_dqrele(
xfs_qm_dqput(dqp);
}
+/*
+ * This is the dquot flushing I/O completion routine. It is called
+ * from interrupt level when the buffer containing the dquot is
+ * flushed to disk. It is responsible for removing the dquot logitem
+ * from the AIL if it has not been re-logged, and unlocking the dquot's
+ * flush lock. This behavior is very similar to that of inodes..
+ */
+STATIC void
+xfs_qm_dqflush_done(
+ struct xfs_buf *bp,
+ struct xfs_log_item *lip)
+{
+ xfs_dq_logitem_t *qip = (struct xfs_dq_logitem *)lip;
+ xfs_dquot_t *dqp = qip->qli_dquot;
+ struct xfs_ail *ailp = lip->li_ailp;
+
+ /*
+ * We only want to pull the item from the AIL if its
+ * location in the log has not changed since we started the flush.
+ * Thus, we only bother if the dquot's lsn has
+ * not changed. First we check the lsn outside the lock
+ * since it's cheaper, and then we recheck while
+ * holding the lock before removing the dquot from the AIL.
+ */
+ if ((lip->li_flags & XFS_LI_IN_AIL) &&
+ lip->li_lsn == qip->qli_flush_lsn) {
+
+ /* xfs_trans_ail_delete() drops the AIL lock. */
+ spin_lock(&ailp->xa_lock);
+ if (lip->li_lsn == qip->qli_flush_lsn)
+ xfs_trans_ail_delete(ailp, lip);
+ else
+ spin_unlock(&ailp->xa_lock);
+ }
+
+ /*
+ * Release the dq's flush lock since we're done with it.
+ */
+ xfs_dqfunlock(dqp);
+}
/*
* Write a modified dquot to disk.
@@ -1222,8 +1243,9 @@ xfs_qm_dqflush(
* Attach an iodone routine so that we can remove this dquot from the
* AIL and release the flush lock once the dquot is synced to disk.
*/
- xfs_buf_attach_iodone(bp, (void(*)(xfs_buf_t *, xfs_log_item_t *))
- xfs_qm_dqflush_done, &(dqp->q_logitem.qli_item));
+ xfs_buf_attach_iodone(bp, xfs_qm_dqflush_done,
+ &dqp->q_logitem.qli_item);
+
/*
* If the buffer is pinned then push on the log so we won't
* get stuck waiting in the write for too long.
@@ -1247,50 +1269,6 @@ xfs_qm_dqflush(
}
-/*
- * This is the dquot flushing I/O completion routine. It is called
- * from interrupt level when the buffer containing the dquot is
- * flushed to disk. It is responsible for removing the dquot logitem
- * from the AIL if it has not been re-logged, and unlocking the dquot's
- * flush lock. This behavior is very similar to that of inodes..
- */
-/*ARGSUSED*/
-STATIC void
-xfs_qm_dqflush_done(
- xfs_buf_t *bp,
- xfs_dq_logitem_t *qip)
-{
- xfs_dquot_t *dqp;
- struct xfs_ail *ailp;
-
- dqp = qip->qli_dquot;
- ailp = qip->qli_item.li_ailp;
-
- /*
- * We only want to pull the item from the AIL if its
- * location in the log has not changed since we started the flush.
- * Thus, we only bother if the dquot's lsn has
- * not changed. First we check the lsn outside the lock
- * since it's cheaper, and then we recheck while
- * holding the lock before removing the dquot from the AIL.
- */
- if ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
- qip->qli_item.li_lsn == qip->qli_flush_lsn) {
-
- /* xfs_trans_ail_delete() drops the AIL lock. */
- spin_lock(&ailp->xa_lock);
- if (qip->qli_item.li_lsn == qip->qli_flush_lsn)
- xfs_trans_ail_delete(ailp, (xfs_log_item_t*)qip);
- else
- spin_unlock(&ailp->xa_lock);
- }
-
- /*
- * Release the dq's flush lock since we're done with it.
- */
- xfs_dqfunlock(dqp);
-}
-
int
xfs_qm_dqlock_nowait(
xfs_dquot_t *dqp)
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index 8d89a24..2a1f3dc 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -23,42 +23,36 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_bmap.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
#include "xfs_itable.h"
-#include "xfs_rw.h"
#include "xfs_attr.h"
#include "xfs_buf_item.h"
#include "xfs_trans_priv.h"
#include "xfs_qm.h"
+static inline struct xfs_dq_logitem *DQUOT_ITEM(struct xfs_log_item *lip)
+{
+ return container_of(lip, struct xfs_dq_logitem, qli_item);
+}
+
/*
* returns the number of iovecs needed to log the given dquot item.
*/
-/* ARGSUSED */
STATIC uint
xfs_qm_dquot_logitem_size(
- xfs_dq_logitem_t *logitem)
+ struct xfs_log_item *lip)
{
/*
* we need only two iovecs, one for the format, one for the real thing
*/
- return (2);
+ return 2;
}
/*
@@ -66,22 +60,21 @@ xfs_qm_dquot_logitem_size(
*/
STATIC void
xfs_qm_dquot_logitem_format(
- xfs_dq_logitem_t *logitem,
- xfs_log_iovec_t *logvec)
+ struct xfs_log_item *lip,
+ struct xfs_log_iovec *logvec)
{
- ASSERT(logitem);
- ASSERT(logitem->qli_dquot);
+ struct xfs_dq_logitem *qlip = DQUOT_ITEM(lip);
- logvec->i_addr = (xfs_caddr_t)&logitem->qli_format;
+ logvec->i_addr = &qlip->qli_format;
logvec->i_len = sizeof(xfs_dq_logformat_t);
logvec->i_type = XLOG_REG_TYPE_QFORMAT;
logvec++;
- logvec->i_addr = (xfs_caddr_t)&logitem->qli_dquot->q_core;
+ logvec->i_addr = &qlip->qli_dquot->q_core;
logvec->i_len = sizeof(xfs_disk_dquot_t);
logvec->i_type = XLOG_REG_TYPE_DQUOT;
- ASSERT(2 == logitem->qli_item.li_desc->lid_size);
- logitem->qli_format.qlf_size = 2;
+ ASSERT(2 == lip->li_desc->lid_size);
+ qlip->qli_format.qlf_size = 2;
}
@@ -90,9 +83,9 @@ xfs_qm_dquot_logitem_format(
*/
STATIC void
xfs_qm_dquot_logitem_pin(
- xfs_dq_logitem_t *logitem)
+ struct xfs_log_item *lip)
{
- xfs_dquot_t *dqp = logitem->qli_dquot;
+ struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
ASSERT(XFS_DQ_IS_LOCKED(dqp));
atomic_inc(&dqp->q_pincount);
@@ -104,27 +97,18 @@ xfs_qm_dquot_logitem_pin(
* dquot must have been previously pinned with a call to
* xfs_qm_dquot_logitem_pin().
*/
-/* ARGSUSED */
STATIC void
xfs_qm_dquot_logitem_unpin(
- xfs_dq_logitem_t *logitem)
+ struct xfs_log_item *lip,
+ int remove)
{
- xfs_dquot_t *dqp = logitem->qli_dquot;
+ struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
ASSERT(atomic_read(&dqp->q_pincount) > 0);
if (atomic_dec_and_test(&dqp->q_pincount))
wake_up(&dqp->q_pinwait);
}
-/* ARGSUSED */
-STATIC void
-xfs_qm_dquot_logitem_unpin_remove(
- xfs_dq_logitem_t *logitem,
- xfs_trans_t *tp)
-{
- xfs_qm_dquot_logitem_unpin(logitem);
-}
-
/*
* Given the logitem, this writes the corresponding dquot entry to disk
* asynchronously. This is called with the dquot entry securely locked;
@@ -133,12 +117,10 @@ xfs_qm_dquot_logitem_unpin_remove(
*/
STATIC void
xfs_qm_dquot_logitem_push(
- xfs_dq_logitem_t *logitem)
+ struct xfs_log_item *lip)
{
- xfs_dquot_t *dqp;
- int error;
-
- dqp = logitem->qli_dquot;
+ struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
+ int error;
ASSERT(XFS_DQ_IS_LOCKED(dqp));
ASSERT(!completion_done(&dqp->q_flush));
@@ -160,27 +142,25 @@ xfs_qm_dquot_logitem_push(
xfs_dqunlock(dqp);
}
-/*ARGSUSED*/
STATIC xfs_lsn_t
xfs_qm_dquot_logitem_committed(
- xfs_dq_logitem_t *l,
+ struct xfs_log_item *lip,
xfs_lsn_t lsn)
{
/*
* We always re-log the entire dquot when it becomes dirty,
* so, the latest copy _is_ the only one that matters.
*/
- return (lsn);
+ return lsn;
}
-
/*
* This is called to wait for the given dquot to be unpinned.
* Most of these pin/unpin routines are plagiarized from inode code.
*/
void
xfs_qm_dqunpin_wait(
- xfs_dquot_t *dqp)
+ struct xfs_dquot *dqp)
{
ASSERT(XFS_DQ_IS_LOCKED(dqp));
if (atomic_read(&dqp->q_pincount) == 0)
@@ -206,13 +186,12 @@ xfs_qm_dqunpin_wait(
*/
STATIC void
xfs_qm_dquot_logitem_pushbuf(
- xfs_dq_logitem_t *qip)
+ struct xfs_log_item *lip)
{
- xfs_dquot_t *dqp;
- xfs_mount_t *mp;
- xfs_buf_t *bp;
+ struct xfs_dq_logitem *qlip = DQUOT_ITEM(lip);
+ struct xfs_dquot *dqp = qlip->qli_dquot;
+ struct xfs_buf *bp;
- dqp = qip->qli_dquot;
ASSERT(XFS_DQ_IS_LOCKED(dqp));
/*
@@ -220,22 +199,20 @@ xfs_qm_dquot_logitem_pushbuf(
* inode flush completed and the inode was taken off the AIL.
* So, just get out.
*/
- if (completion_done(&dqp->q_flush) ||
- ((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) {
+ if (completion_done(&dqp->q_flush) ||
+ !(lip->li_flags & XFS_LI_IN_AIL)) {
xfs_dqunlock(dqp);
return;
}
- mp = dqp->q_mount;
- bp = xfs_incore(mp->m_ddev_targp, qip->qli_format.qlf_blkno,
- mp->m_quotainfo->qi_dqchunklen, XBF_TRYLOCK);
+
+ bp = xfs_incore(dqp->q_mount->m_ddev_targp, qlip->qli_format.qlf_blkno,
+ dqp->q_mount->m_quotainfo->qi_dqchunklen, XBF_TRYLOCK);
xfs_dqunlock(dqp);
if (!bp)
return;
if (XFS_BUF_ISDELAYWRITE(bp))
xfs_buf_delwri_promote(bp);
xfs_buf_relse(bp);
- return;
-
}
/*
@@ -250,15 +227,14 @@ xfs_qm_dquot_logitem_pushbuf(
*/
STATIC uint
xfs_qm_dquot_logitem_trylock(
- xfs_dq_logitem_t *qip)
+ struct xfs_log_item *lip)
{
- xfs_dquot_t *dqp;
+ struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
- dqp = qip->qli_dquot;
if (atomic_read(&dqp->q_pincount) > 0)
return XFS_ITEM_PINNED;
- if (! xfs_qm_dqlock_nowait(dqp))
+ if (!xfs_qm_dqlock_nowait(dqp))
return XFS_ITEM_LOCKED;
if (!xfs_dqflock_nowait(dqp)) {
@@ -269,11 +245,10 @@ xfs_qm_dquot_logitem_trylock(
return XFS_ITEM_PUSHBUF;
}
- ASSERT(qip->qli_item.li_flags & XFS_LI_IN_AIL);
+ ASSERT(lip->li_flags & XFS_LI_IN_AIL);
return XFS_ITEM_SUCCESS;
}
-
/*
* Unlock the dquot associated with the log item.
* Clear the fields of the dquot and dquot log item that
@@ -282,12 +257,10 @@ xfs_qm_dquot_logitem_trylock(
*/
STATIC void
xfs_qm_dquot_logitem_unlock(
- xfs_dq_logitem_t *ql)
+ struct xfs_log_item *lip)
{
- xfs_dquot_t *dqp;
+ struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
- ASSERT(ql != NULL);
- dqp = ql->qli_dquot;
ASSERT(XFS_DQ_IS_LOCKED(dqp));
/*
@@ -304,43 +277,32 @@ xfs_qm_dquot_logitem_unlock(
xfs_dqunlock(dqp);
}
-
/*
* this needs to stamp an lsn into the dquot, I think.
* rpc's that look at user dquot's would then have to
* push on the dependency recorded in the dquot
*/
-/* ARGSUSED */
STATIC void
xfs_qm_dquot_logitem_committing(
- xfs_dq_logitem_t *l,
+ struct xfs_log_item *lip,
xfs_lsn_t lsn)
{
- return;
}
-
/*
* This is the ops vector for dquots
*/
static struct xfs_item_ops xfs_dquot_item_ops = {
- .iop_size = (uint(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_size,
- .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
- xfs_qm_dquot_logitem_format,
- .iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_pin,
- .iop_unpin = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_unpin,
- .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
- xfs_qm_dquot_logitem_unpin_remove,
- .iop_trylock = (uint(*)(xfs_log_item_t*))
- xfs_qm_dquot_logitem_trylock,
- .iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_unlock,
- .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_qm_dquot_logitem_committed,
- .iop_push = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_push,
- .iop_pushbuf = (void(*)(xfs_log_item_t*))
- xfs_qm_dquot_logitem_pushbuf,
- .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_qm_dquot_logitem_committing
+ .iop_size = xfs_qm_dquot_logitem_size,
+ .iop_format = xfs_qm_dquot_logitem_format,
+ .iop_pin = xfs_qm_dquot_logitem_pin,
+ .iop_unpin = xfs_qm_dquot_logitem_unpin,
+ .iop_trylock = xfs_qm_dquot_logitem_trylock,
+ .iop_unlock = xfs_qm_dquot_logitem_unlock,
+ .iop_committed = xfs_qm_dquot_logitem_committed,
+ .iop_push = xfs_qm_dquot_logitem_push,
+ .iop_pushbuf = xfs_qm_dquot_logitem_pushbuf,
+ .iop_committing = xfs_qm_dquot_logitem_committing
};
/*
@@ -350,10 +312,9 @@ static struct xfs_item_ops xfs_dquot_item_ops = {
*/
void
xfs_qm_dquot_logitem_init(
- struct xfs_dquot *dqp)
+ struct xfs_dquot *dqp)
{
- xfs_dq_logitem_t *lp;
- lp = &dqp->q_logitem;
+ struct xfs_dq_logitem *lp = &dqp->q_logitem;
xfs_log_item_init(dqp->q_mount, &lp->qli_item, XFS_LI_DQUOT,
&xfs_dquot_item_ops);
@@ -374,16 +335,22 @@ xfs_qm_dquot_logitem_init(
/*------------------ QUOTAOFF LOG ITEMS -------------------*/
+static inline struct xfs_qoff_logitem *QOFF_ITEM(struct xfs_log_item *lip)
+{
+ return container_of(lip, struct xfs_qoff_logitem, qql_item);
+}
+
+
/*
* This returns the number of iovecs needed to log the given quotaoff item.
* We only need 1 iovec for an quotaoff item. It just logs the
* quotaoff_log_format structure.
*/
-/*ARGSUSED*/
STATIC uint
-xfs_qm_qoff_logitem_size(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_size(
+ struct xfs_log_item *lip)
{
- return (1);
+ return 1;
}
/*
@@ -394,53 +361,46 @@ xfs_qm_qoff_logitem_size(xfs_qoff_logitem_t *qf)
* slots in the quotaoff item have been filled.
*/
STATIC void
-xfs_qm_qoff_logitem_format(xfs_qoff_logitem_t *qf,
- xfs_log_iovec_t *log_vector)
+xfs_qm_qoff_logitem_format(
+ struct xfs_log_item *lip,
+ struct xfs_log_iovec *log_vector)
{
- ASSERT(qf->qql_format.qf_type == XFS_LI_QUOTAOFF);
+ struct xfs_qoff_logitem *qflip = QOFF_ITEM(lip);
+
+ ASSERT(qflip->qql_format.qf_type == XFS_LI_QUOTAOFF);
- log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format);
+ log_vector->i_addr = &qflip->qql_format;
log_vector->i_len = sizeof(xfs_qoff_logitem_t);
log_vector->i_type = XLOG_REG_TYPE_QUOTAOFF;
- qf->qql_format.qf_size = 1;
+ qflip->qql_format.qf_size = 1;
}
-
/*
* Pinning has no meaning for an quotaoff item, so just return.
*/
-/*ARGSUSED*/
STATIC void
-xfs_qm_qoff_logitem_pin(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_pin(
+ struct xfs_log_item *lip)
{
- return;
}
-
/*
* Since pinning has no meaning for an quotaoff item, unpinning does
* not either.
*/
-/*ARGSUSED*/
STATIC void
-xfs_qm_qoff_logitem_unpin(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_unpin(
+ struct xfs_log_item *lip,
+ int remove)
{
- return;
-}
-
-/*ARGSUSED*/
-STATIC void
-xfs_qm_qoff_logitem_unpin_remove(xfs_qoff_logitem_t *qf, xfs_trans_t *tp)
-{
- return;
}
/*
* Quotaoff items have no locking, so just return success.
*/
-/*ARGSUSED*/
STATIC uint
-xfs_qm_qoff_logitem_trylock(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_trylock(
+ struct xfs_log_item *lip)
{
return XFS_ITEM_LOCKED;
}
@@ -449,53 +409,51 @@ xfs_qm_qoff_logitem_trylock(xfs_qoff_logitem_t *qf)
* Quotaoff items have no locking or pushing, so return failure
* so that the caller doesn't bother with us.
*/
-/*ARGSUSED*/
STATIC void
-xfs_qm_qoff_logitem_unlock(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_unlock(
+ struct xfs_log_item *lip)
{
- return;
}
/*
* The quotaoff-start-item is logged only once and cannot be moved in the log,
* so simply return the lsn at which it's been logged.
*/
-/*ARGSUSED*/
STATIC xfs_lsn_t
-xfs_qm_qoff_logitem_committed(xfs_qoff_logitem_t *qf, xfs_lsn_t lsn)
+xfs_qm_qoff_logitem_committed(
+ struct xfs_log_item *lip,
+ xfs_lsn_t lsn)
{
- return (lsn);
+ return lsn;
}
/*
* There isn't much you can do to push on an quotaoff item. It is simply
* stuck waiting for the log to be flushed to disk.
*/
-/*ARGSUSED*/
STATIC void
-xfs_qm_qoff_logitem_push(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_push(
+ struct xfs_log_item *lip)
{
- return;
}
-/*ARGSUSED*/
STATIC xfs_lsn_t
xfs_qm_qoffend_logitem_committed(
- xfs_qoff_logitem_t *qfe,
- xfs_lsn_t lsn)
+ struct xfs_log_item *lip,
+ xfs_lsn_t lsn)
{
- xfs_qoff_logitem_t *qfs;
- struct xfs_ail *ailp;
+ struct xfs_qoff_logitem *qfe = QOFF_ITEM(lip);
+ struct xfs_qoff_logitem *qfs = qfe->qql_start_lip;
+ struct xfs_ail *ailp = qfs->qql_item.li_ailp;
- qfs = qfe->qql_start_lip;
- ailp = qfs->qql_item.li_ailp;
- spin_lock(&ailp->xa_lock);
/*
* Delete the qoff-start logitem from the AIL.
* xfs_trans_ail_delete() drops the AIL lock.
*/
+ spin_lock(&ailp->xa_lock);
xfs_trans_ail_delete(ailp, (xfs_log_item_t *)qfs);
+
kmem_free(qfs);
kmem_free(qfe);
return (xfs_lsn_t)-1;
@@ -515,71 +473,52 @@ xfs_qm_qoffend_logitem_committed(
* (truly makes the quotaoff irrevocable). If we do something else,
* then maybe we don't need two.
*/
-/* ARGSUSED */
-STATIC void
-xfs_qm_qoff_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
-{
- return;
-}
-
-/* ARGSUSED */
STATIC void
-xfs_qm_qoffend_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
+xfs_qm_qoff_logitem_committing(
+ struct xfs_log_item *lip,
+ xfs_lsn_t commit_lsn)
{
- return;
}
static struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
- .iop_size = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
- .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
- xfs_qm_qoff_logitem_format,
- .iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
- .iop_unpin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unpin,
- .iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
- xfs_qm_qoff_logitem_unpin_remove,
- .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
- .iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
- .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_qm_qoffend_logitem_committed,
- .iop_push = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
- .iop_pushbuf = NULL,
- .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_qm_qoffend_logitem_committing
+ .iop_size = xfs_qm_qoff_logitem_size,
+ .iop_format = xfs_qm_qoff_logitem_format,
+ .iop_pin = xfs_qm_qoff_logitem_pin,
+ .iop_unpin = xfs_qm_qoff_logitem_unpin,
+ .iop_trylock = xfs_qm_qoff_logitem_trylock,
+ .iop_unlock = xfs_qm_qoff_logitem_unlock,
+ .iop_committed = xfs_qm_qoffend_logitem_committed,
+ .iop_push = xfs_qm_qoff_logitem_push,
+ .iop_committing = xfs_qm_qoff_logitem_committing
};
/*
* This is the ops vector shared by all quotaoff-start log items.
*/
static struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
- .iop_size = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
- .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
- xfs_qm_qoff_logitem_format,
- .iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
- .iop_unpin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unpin,
- .iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
- xfs_qm_qoff_logitem_unpin_remove,
- .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
- .iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
- .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_qm_qoff_logitem_committed,
- .iop_push = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
- .iop_pushbuf = NULL,
- .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_qm_qoff_logitem_committing
+ .iop_size = xfs_qm_qoff_logitem_size,
+ .iop_format = xfs_qm_qoff_logitem_format,
+ .iop_pin = xfs_qm_qoff_logitem_pin,
+ .iop_unpin = xfs_qm_qoff_logitem_unpin,
+ .iop_trylock = xfs_qm_qoff_logitem_trylock,
+ .iop_unlock = xfs_qm_qoff_logitem_unlock,
+ .iop_committed = xfs_qm_qoff_logitem_committed,
+ .iop_push = xfs_qm_qoff_logitem_push,
+ .iop_committing = xfs_qm_qoff_logitem_committing
};
/*
* Allocate and initialize an quotaoff item of the correct quota type(s).
*/
-xfs_qoff_logitem_t *
+struct xfs_qoff_logitem *
xfs_qm_qoff_logitem_init(
- struct xfs_mount *mp,
- xfs_qoff_logitem_t *start,
- uint flags)
+ struct xfs_mount *mp,
+ struct xfs_qoff_logitem *start,
+ uint flags)
{
- xfs_qoff_logitem_t *qf;
+ struct xfs_qoff_logitem *qf;
- qf = (xfs_qoff_logitem_t*) kmem_zalloc(sizeof(xfs_qoff_logitem_t), KM_SLEEP);
+ qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), KM_SLEEP);
xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ?
&xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops);
@@ -587,5 +526,5 @@ xfs_qm_qoff_logitem_init(
qf->qql_format.qf_type = XFS_LI_QUOTAOFF;
qf->qql_format.qf_flags = flags;
qf->qql_start_lip = start;
- return (qf);
+ return qf;
}
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 8c117ff..9a92407 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -23,25 +23,18 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
-#include "xfs_btree.h"
#include "xfs_ialloc.h"
#include "xfs_itable.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
#include "xfs_bmap.h"
-#include "xfs_rw.h"
#include "xfs_attr.h"
#include "xfs_buf_item.h"
#include "xfs_trans_space.h"
@@ -69,7 +62,7 @@ STATIC void xfs_qm_list_destroy(xfs_dqlist_t *);
STATIC int xfs_qm_init_quotainos(xfs_mount_t *);
STATIC int xfs_qm_init_quotainfo(xfs_mount_t *);
-STATIC int xfs_qm_shake(int, gfp_t);
+STATIC int xfs_qm_shake(struct shrinker *, int, gfp_t);
static struct shrinker xfs_qm_shaker = {
.shrink = xfs_qm_shake,
@@ -1497,7 +1490,7 @@ xfs_qm_dqiterate(
maxlblkcnt - lblkno,
XFS_BMAPI_METADATA,
NULL,
- 0, map, &nmaps, NULL, NULL);
+ 0, map, &nmaps, NULL);
xfs_iunlock(qip, XFS_ILOCK_SHARED);
if (error)
break;
@@ -1669,7 +1662,8 @@ xfs_qm_dqusage_adjust(
* making us disable quotas for the file system.
*/
if ((error = xfs_qm_dqget_noattach(ip, &udqp, &gdqp))) {
- xfs_iput(ip, XFS_ILOCK_EXCL);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ IRELE(ip);
*res = BULKSTAT_RV_GIVEUP;
return error;
}
@@ -1682,7 +1676,8 @@ xfs_qm_dqusage_adjust(
* Walk thru the extent list and count the realtime blocks.
*/
if ((error = xfs_qm_get_rtblks(ip, &rtblks))) {
- xfs_iput(ip, XFS_ILOCK_EXCL);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ IRELE(ip);
if (udqp)
xfs_qm_dqput(udqp);
if (gdqp)
@@ -2117,7 +2112,10 @@ xfs_qm_shake_freelist(
*/
/* ARGSUSED */
STATIC int
-xfs_qm_shake(int nr_to_scan, gfp_t gfp_mask)
+xfs_qm_shake(
+ struct shrinker *shrink,
+ int nr_to_scan,
+ gfp_t gfp_mask)
{
int ndqused, nfree, n;
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index 97b410c..bea02d7 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -23,25 +23,15 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
#include "xfs_inode.h"
-#include "xfs_ialloc.h"
#include "xfs_itable.h"
-#include "xfs_btree.h"
#include "xfs_bmap.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
-#include "xfs_rw.h"
#include "xfs_attr.h"
#include "xfs_buf_item.h"
#include "xfs_qm.h"
diff --git a/fs/xfs/quota/xfs_qm_stats.c b/fs/xfs/quota/xfs_qm_stats.c
index 3d1fc79..8671a0b 100644
--- a/fs/xfs/quota/xfs_qm_stats.c
+++ b/fs/xfs/quota/xfs_qm_stats.c
@@ -23,25 +23,15 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
#include "xfs_inode.h"
-#include "xfs_ialloc.h"
#include "xfs_itable.h"
#include "xfs_bmap.h"
-#include "xfs_btree.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
-#include "xfs_rw.h"
#include "xfs_attr.h"
#include "xfs_buf_item.h"
#include "xfs_qm.h"
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index b448776..45e5849 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -26,25 +26,15 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
#include "xfs_inode.h"
-#include "xfs_ialloc.h"
#include "xfs_itable.h"
#include "xfs_bmap.h"
-#include "xfs_btree.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
-#include "xfs_rw.h"
#include "xfs_attr.h"
#include "xfs_buf_item.h"
#include "xfs_utils.h"
@@ -248,40 +238,74 @@ out_unlock:
return error;
}
+STATIC int
+xfs_qm_scall_trunc_qfile(
+ struct xfs_mount *mp,
+ xfs_ino_t ino)
+{
+ struct xfs_inode *ip;
+ struct xfs_trans *tp;
+ int error;
+
+ if (ino == NULLFSINO)
+ return 0;
+
+ error = xfs_iget(mp, NULL, ino, 0, 0, &ip);
+ if (error)
+ return error;
+
+ xfs_ilock(ip, XFS_IOLOCK_EXCL);
+
+ tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE);
+ error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
+ XFS_TRANS_PERM_LOG_RES,
+ XFS_ITRUNCATE_LOG_COUNT);
+ if (error) {
+ xfs_trans_cancel(tp, 0);
+ xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+ goto out_put;
+ }
+
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin(tp, ip);
+
+ error = xfs_itruncate_finish(&tp, ip, 0, XFS_DATA_FORK, 1);
+ if (error) {
+ xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
+ XFS_TRANS_ABORT);
+ goto out_unlock;
+ }
+
+ xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+ error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
+
+out_unlock:
+ xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+out_put:
+ IRELE(ip);
+ return error;
+}
+
int
xfs_qm_scall_trunc_qfiles(
xfs_mount_t *mp,
uint flags)
{
int error = 0, error2 = 0;
- xfs_inode_t *qip;
if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) {
qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags);
return XFS_ERROR(EINVAL);
}
- if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) {
- error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip);
- if (!error) {
- error = xfs_truncate_file(mp, qip);
- IRELE(qip);
- }
- }
-
- if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) &&
- mp->m_sb.sb_gquotino != NULLFSINO) {
- error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip);
- if (!error2) {
- error2 = xfs_truncate_file(mp, qip);
- IRELE(qip);
- }
- }
+ if (flags & XFS_DQ_USER)
+ error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino);
+ if (flags & (XFS_DQ_GROUP|XFS_DQ_PROJ))
+ error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino);
return error ? error : error2;
}
-
/*
* Switch on (a given) quota enforcement for a filesystem. This takes
* effect immediately.
@@ -786,9 +810,9 @@ xfs_qm_export_dquot(
}
#ifdef DEBUG
- if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == XFS_USER_QUOTA) ||
+ if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) ||
(XFS_IS_OQUOTA_ENFORCED(mp) &&
- (dst->d_flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)))) &&
+ (dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) &&
dst->d_id != 0) {
if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) &&
(dst->d_blk_softlimit > 0)) {
@@ -809,17 +833,17 @@ xfs_qm_export_qtype_flags(
/*
* Can't be more than one, or none.
*/
- ASSERT((flags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) !=
- (XFS_PROJ_QUOTA | XFS_USER_QUOTA));
- ASSERT((flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)) !=
- (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA));
- ASSERT((flags & (XFS_USER_QUOTA | XFS_GROUP_QUOTA)) !=
- (XFS_USER_QUOTA | XFS_GROUP_QUOTA));
- ASSERT((flags & (XFS_PROJ_QUOTA|XFS_USER_QUOTA|XFS_GROUP_QUOTA)) != 0);
+ ASSERT((flags & (FS_PROJ_QUOTA | FS_USER_QUOTA)) !=
+ (FS_PROJ_QUOTA | FS_USER_QUOTA));
+ ASSERT((flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)) !=
+ (FS_PROJ_QUOTA | FS_GROUP_QUOTA));
+ ASSERT((flags & (FS_USER_QUOTA | FS_GROUP_QUOTA)) !=
+ (FS_USER_QUOTA | FS_GROUP_QUOTA));
+ ASSERT((flags & (FS_PROJ_QUOTA|FS_USER_QUOTA|FS_GROUP_QUOTA)) != 0);
return (flags & XFS_DQ_USER) ?
- XFS_USER_QUOTA : (flags & XFS_DQ_PROJ) ?
- XFS_PROJ_QUOTA : XFS_GROUP_QUOTA;
+ FS_USER_QUOTA : (flags & XFS_DQ_PROJ) ?
+ FS_PROJ_QUOTA : FS_GROUP_QUOTA;
}
STATIC uint
@@ -830,16 +854,16 @@ xfs_qm_export_flags(
uflags = 0;
if (flags & XFS_UQUOTA_ACCT)
- uflags |= XFS_QUOTA_UDQ_ACCT;
+ uflags |= FS_QUOTA_UDQ_ACCT;
if (flags & XFS_PQUOTA_ACCT)
- uflags |= XFS_QUOTA_PDQ_ACCT;
+ uflags |= FS_QUOTA_PDQ_ACCT;
if (flags & XFS_GQUOTA_ACCT)
- uflags |= XFS_QUOTA_GDQ_ACCT;
+ uflags |= FS_QUOTA_GDQ_ACCT;
if (flags & XFS_UQUOTA_ENFD)
- uflags |= XFS_QUOTA_UDQ_ENFD;
+ uflags |= FS_QUOTA_UDQ_ENFD;
if (flags & (XFS_OQUOTA_ENFD)) {
uflags |= (flags & XFS_GQUOTA_ACCT) ?
- XFS_QUOTA_GDQ_ENFD : XFS_QUOTA_PDQ_ENFD;
+ FS_QUOTA_GDQ_ENFD : FS_QUOTA_PDQ_ENFD;
}
return (uflags);
}
@@ -875,8 +899,9 @@ xfs_dqrele_inode(
xfs_qm_dqrele(ip->i_gdquot);
ip->i_gdquot = NULL;
}
- xfs_iput(ip, XFS_ILOCK_EXCL);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ IRELE(ip);
return 0;
}
@@ -1143,7 +1168,8 @@ xfs_qm_internalqcheck_adjust(
* of those now.
*/
if (! ipreleased) {
- xfs_iput(ip, lock_flags);
+ xfs_iunlock(ip, lock_flags);
+ IRELE(ip);
ipreleased = B_TRUE;
goto again;
}
@@ -1160,7 +1186,8 @@ xfs_qm_internalqcheck_adjust(
ASSERT(gd);
xfs_qm_internalqcheck_dqadjust(ip, gd);
}
- xfs_iput(ip, lock_flags);
+ xfs_iunlock(ip, lock_flags);
+ IRELE(ip);
*res = BULKSTAT_RV_DIDONE;
return (0);
}
diff --git a/fs/xfs/quota/xfs_trans_dquot.c b/fs/xfs/quota/xfs_trans_dquot.c
index 061d827..7de91d1 100644
--- a/fs/xfs/quota/xfs_trans_dquot.c
+++ b/fs/xfs/quota/xfs_trans_dquot.c
@@ -23,25 +23,15 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_dinode.h"
#include "xfs_inode.h"
-#include "xfs_ialloc.h"
#include "xfs_itable.h"
-#include "xfs_btree.h"
#include "xfs_bmap.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
-#include "xfs_rw.h"
#include "xfs_attr.h"
#include "xfs_buf_item.h"
#include "xfs_trans_priv.h"
@@ -59,16 +49,14 @@ xfs_trans_dqjoin(
xfs_trans_t *tp,
xfs_dquot_t *dqp)
{
- xfs_dq_logitem_t *lp = &dqp->q_logitem;
-
ASSERT(dqp->q_transp != tp);
ASSERT(XFS_DQ_IS_LOCKED(dqp));
- ASSERT(lp->qli_dquot == dqp);
+ ASSERT(dqp->q_logitem.qli_dquot == dqp);
/*
* Get a log_item_desc to point at the new item.
*/
- (void) xfs_trans_add_item(tp, (xfs_log_item_t*)(lp));
+ xfs_trans_add_item(tp, &dqp->q_logitem.qli_item);
/*
* Initialize i_transp so we can later determine if this dquot is
@@ -93,16 +81,11 @@ xfs_trans_log_dquot(
xfs_trans_t *tp,
xfs_dquot_t *dqp)
{
- xfs_log_item_desc_t *lidp;
-
ASSERT(dqp->q_transp == tp);
ASSERT(XFS_DQ_IS_LOCKED(dqp));
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(&dqp->q_logitem));
- ASSERT(lidp != NULL);
-
tp->t_flags |= XFS_TRANS_DIRTY;
- lidp->lid_flags |= XFS_LID_DIRTY;
+ dqp->q_logitem.qli_item.li_desc->lid_flags |= XFS_LID_DIRTY;
}
/*
@@ -874,9 +857,8 @@ xfs_trans_get_qoff_item(
/*
* Get a log_item_desc to point at the new item.
*/
- (void) xfs_trans_add_item(tp, (xfs_log_item_t*)q);
-
- return (q);
+ xfs_trans_add_item(tp, &q->qql_item);
+ return q;
}
@@ -890,13 +872,8 @@ xfs_trans_log_quotaoff_item(
xfs_trans_t *tp,
xfs_qoff_logitem_t *qlp)
{
- xfs_log_item_desc_t *lidp;
-
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t *)qlp);
- ASSERT(lidp != NULL);
-
tp->t_flags |= XFS_TRANS_DIRTY;
- lidp->lid_flags |= XFS_LID_DIRTY;
+ qlp->qql_item.li_desc->lid_flags |= XFS_LID_DIRTY;
}
STATIC void
diff --git a/fs/xfs/support/debug.c b/fs/xfs/support/debug.c
index 3f3610a..975aa10 100644
--- a/fs/xfs/support/debug.c
+++ b/fs/xfs/support/debug.c
@@ -22,7 +22,6 @@
#include "xfs_sb.h"
#include "xfs_inum.h"
#include "xfs_ag.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_error.h"
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index a7fbe8a..af168fa 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -24,18 +24,13 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
-#include "xfs_ialloc.h"
#include "xfs_alloc.h"
#include "xfs_error.h"
#include "xfs_trace.h"
@@ -688,8 +683,6 @@ xfs_alloc_ag_vextent_near(
xfs_agblock_t ltbno; /* start bno of left side entry */
xfs_agblock_t ltbnoa; /* aligned ... */
xfs_extlen_t ltdiff; /* difference to left side entry */
- /*REFERENCED*/
- xfs_agblock_t ltend; /* end bno of left side entry */
xfs_extlen_t ltlen; /* length of left side entry */
xfs_extlen_t ltlena; /* aligned ... */
xfs_agblock_t ltnew; /* useful start bno of left side */
@@ -814,8 +807,7 @@ xfs_alloc_ag_vextent_near(
if ((error = xfs_alloc_get_rec(cnt_cur, &ltbno, &ltlen, &i)))
goto error0;
XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
- ltend = ltbno + ltlen;
- ASSERT(ltend <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
+ ASSERT(ltbno + ltlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
args->len = blen;
if (!xfs_alloc_fix_minleft(args)) {
xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
@@ -828,7 +820,7 @@ xfs_alloc_ag_vextent_near(
*/
args->agbno = bnew;
ASSERT(bnew >= ltbno);
- ASSERT(bnew + blen <= ltend);
+ ASSERT(bnew + blen <= ltbno + ltlen);
/*
* Set up a cursor for the by-bno tree.
*/
@@ -1157,7 +1149,6 @@ xfs_alloc_ag_vextent_near(
/*
* Fix up the length and compute the useful address.
*/
- ltend = ltbno + ltlen;
args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
xfs_alloc_fix_len(args);
if (!xfs_alloc_fix_minleft(args)) {
@@ -1170,7 +1161,7 @@ xfs_alloc_ag_vextent_near(
(void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment, ltbno,
ltlen, &ltnew);
ASSERT(ltnew >= ltbno);
- ASSERT(ltnew + rlen <= ltend);
+ ASSERT(ltnew + rlen <= ltbno + ltlen);
ASSERT(ltnew + rlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
args->agbno = ltnew;
if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur_lt, ltbno, ltlen,
diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h
index 6d05199..895009a 100644
--- a/fs/xfs/xfs_alloc.h
+++ b/fs/xfs/xfs_alloc.h
@@ -27,16 +27,16 @@ struct xfs_busy_extent;
/*
* Freespace allocation types. Argument to xfs_alloc_[v]extent.
*/
-typedef enum xfs_alloctype
-{
- XFS_ALLOCTYPE_ANY_AG, /* allocate anywhere, use rotor */
- XFS_ALLOCTYPE_FIRST_AG, /* ... start at ag 0 */
- XFS_ALLOCTYPE_START_AG, /* anywhere, start in this a.g. */
- XFS_ALLOCTYPE_THIS_AG, /* anywhere in this a.g. */
- XFS_ALLOCTYPE_START_BNO, /* near this block else anywhere */
- XFS_ALLOCTYPE_NEAR_BNO, /* in this a.g. and near this block */
- XFS_ALLOCTYPE_THIS_BNO /* at exactly this block */
-} xfs_alloctype_t;
+#define XFS_ALLOCTYPE_ANY_AG 0x01 /* allocate anywhere, use rotor */
+#define XFS_ALLOCTYPE_FIRST_AG 0x02 /* ... start at ag 0 */
+#define XFS_ALLOCTYPE_START_AG 0x04 /* anywhere, start in this a.g. */
+#define XFS_ALLOCTYPE_THIS_AG 0x08 /* anywhere in this a.g. */
+#define XFS_ALLOCTYPE_START_BNO 0x10 /* near this block else anywhere */
+#define XFS_ALLOCTYPE_NEAR_BNO 0x20 /* in this a.g. and near this block */
+#define XFS_ALLOCTYPE_THIS_BNO 0x40 /* at exactly this block */
+
+/* this should become an enum again when the tracing code is fixed */
+typedef unsigned int xfs_alloctype_t;
#define XFS_ALLOC_TYPES \
{ XFS_ALLOCTYPE_ANY_AG, "ANY_AG" }, \
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index 83f4942..97f7328 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -24,19 +24,14 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
#include "xfs_btree_trace.h"
-#include "xfs_ialloc.h"
#include "xfs_alloc.h"
#include "xfs_error.h"
#include "xfs_trace.h"
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index b9c196a..c256824 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -25,19 +25,13 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_alloc.h"
-#include "xfs_btree.h"
#include "xfs_inode_item.h"
#include "xfs_bmap.h"
#include "xfs_attr.h"
@@ -325,8 +319,7 @@ xfs_attr_set_int(
return (error);
}
- xfs_trans_ijoin(args.trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args.trans, dp);
+ xfs_trans_ijoin(args.trans, dp);
/*
* If the attribute list is non-existent or a shortform list,
@@ -396,10 +389,8 @@ xfs_attr_set_int(
* bmap_finish() may have committed the last trans and started
* a new one. We need the inode to be in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args.trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args.trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args.trans, dp);
/*
* Commit the leaf transformation. We'll need another (linked)
@@ -544,8 +535,7 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags)
* No need to make quota reservations here. We expect to release some
* blocks not allocate in the common case.
*/
- xfs_trans_ijoin(args.trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args.trans, dp);
+ xfs_trans_ijoin(args.trans, dp);
/*
* Decide on what work routines to call based on the inode size.
@@ -821,8 +811,7 @@ xfs_attr_inactive(xfs_inode_t *dp)
* No need to make quota reservations here. We expect to release some
* blocks, not allocate, in the common case.
*/
- xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(trans, dp);
+ xfs_trans_ijoin(trans, dp);
/*
* Decide on what work routines to call based on the inode size.
@@ -981,10 +970,8 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
* bmap_finish() may have committed the last trans and started
* a new one. We need the inode to be in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, dp);
/*
* Commit the current trans (including the inode) and start
@@ -1085,10 +1072,8 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
* and started a new one. We need the inode to be
* in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, dp);
} else
xfs_da_buf_done(bp);
@@ -1161,10 +1146,8 @@ xfs_attr_leaf_removename(xfs_da_args_t *args)
* bmap_finish() may have committed the last trans and started
* a new one. We need the inode to be in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, dp);
} else
xfs_da_buf_done(bp);
return(0);
@@ -1317,10 +1300,8 @@ restart:
* and started a new one. We need the inode to be
* in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, dp);
/*
* Commit the node conversion and start the next
@@ -1356,10 +1337,8 @@ restart:
* bmap_finish() may have committed the last trans and started
* a new one. We need the inode to be in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, dp);
} else {
/*
* Addition succeeded, update Btree hashvals.
@@ -1470,10 +1449,8 @@ restart:
* and started a new one. We need the inode to be
* in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, dp);
}
/*
@@ -1604,10 +1581,8 @@ xfs_attr_node_removename(xfs_da_args_t *args)
* bmap_finish() may have committed the last trans and started
* a new one. We need the inode to be in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, dp);
/*
* Commit the Btree join operation and start a new trans.
@@ -1658,10 +1633,8 @@ xfs_attr_node_removename(xfs_da_args_t *args)
* and started a new one. We need the inode to be
* in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, dp);
} else
xfs_da_brelse(args->trans, bp);
}
@@ -2004,7 +1977,7 @@ xfs_attr_rmtval_get(xfs_da_args_t *args)
error = xfs_bmapi(args->trans, args->dp, (xfs_fileoff_t)lblkno,
args->rmtblkcnt,
XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
- NULL, 0, map, &nmap, NULL, NULL);
+ NULL, 0, map, &nmap, NULL);
if (error)
return(error);
ASSERT(nmap >= 1);
@@ -2083,7 +2056,7 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA |
XFS_BMAPI_WRITE,
args->firstblock, args->total, &map, &nmap,
- args->flist, NULL);
+ args->flist);
if (!error) {
error = xfs_bmap_finish(&args->trans, args->flist,
&committed);
@@ -2099,10 +2072,8 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
* bmap_finish() may have committed the last trans and started
* a new one. We need the inode to be in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, dp);
ASSERT(nmap == 1);
ASSERT((map.br_startblock != DELAYSTARTBLOCK) &&
@@ -2136,7 +2107,7 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
args->rmtblkcnt,
XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
args->firstblock, 0, &map, &nmap,
- NULL, NULL);
+ NULL);
if (error) {
return(error);
}
@@ -2201,7 +2172,7 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
args->rmtblkcnt,
XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
args->firstblock, 0, &map, &nmap,
- args->flist, NULL);
+ args->flist);
if (error) {
return(error);
}
@@ -2239,7 +2210,7 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
error = xfs_bunmapi(args->trans, args->dp, lblkno, blkcnt,
XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
1, args->firstblock, args->flist,
- NULL, &done);
+ &done);
if (!error) {
error = xfs_bmap_finish(&args->trans, args->flist,
&committed);
@@ -2255,10 +2226,8 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
* bmap_finish() may have committed the last trans and started
* a new one. We need the inode to be in all transactions.
*/
- if (committed) {
- xfs_trans_ijoin(args->trans, args->dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(args->trans, args->dp);
- }
+ if (committed)
+ xfs_trans_ijoin(args->trans, args->dp);
/*
* Close out trans and start the next one in the chain.
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index a90ce74..a6cff8e 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -24,8 +24,6 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
@@ -33,7 +31,6 @@
#include "xfs_ialloc_btree.h"
#include "xfs_alloc.h"
#include "xfs_btree.h"
-#include "xfs_dir2_sf.h"
#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
@@ -2931,7 +2928,7 @@ xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
nmap = 1;
error = xfs_bmapi(*trans, dp, (xfs_fileoff_t)tblkno, tblkcnt,
XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
- NULL, 0, &map, &nmap, NULL, NULL);
+ NULL, 0, &map, &nmap, NULL);
if (error) {
return(error);
}
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 99587de..23f14e5 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -30,13 +30,10 @@
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
-#include "xfs_ialloc.h"
#include "xfs_itable.h"
#include "xfs_dir2_data.h"
#include "xfs_dir2_leaf.h"
@@ -104,7 +101,6 @@ xfs_bmap_add_extent(
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork, /* data or attr fork */
int rsvd); /* OK to allocate reserved blocks */
@@ -122,7 +118,6 @@ xfs_bmap_add_extent_delay_real(
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int rsvd); /* OK to allocate reserved blocks */
/*
@@ -135,7 +130,6 @@ xfs_bmap_add_extent_hole_delay(
xfs_extnum_t idx, /* extent number to update/insert */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp,/* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int rsvd); /* OK to allocate reserved blocks */
/*
@@ -149,7 +143,6 @@ xfs_bmap_add_extent_hole_real(
xfs_btree_cur_t *cur, /* if null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork); /* data or attr fork */
/*
@@ -162,8 +155,7 @@ xfs_bmap_add_extent_unwritten_real(
xfs_extnum_t idx, /* extent number to update/insert */
xfs_btree_cur_t **curp, /* if *curp is null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
- int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta); /* Change made to incore extents */
+ int *logflagsp); /* inode logging flags */
/*
* xfs_bmap_alloc is called by xfs_bmapi to allocate an extent for a file.
@@ -200,7 +192,6 @@ xfs_bmap_del_extent(
xfs_btree_cur_t *cur, /* if null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp,/* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork, /* data or attr fork */
int rsvd); /* OK to allocate reserved blocks */
@@ -489,7 +480,6 @@ xfs_bmap_add_extent(
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork, /* data or attr fork */
int rsvd) /* OK to use reserved data blocks */
{
@@ -524,15 +514,6 @@ xfs_bmap_add_extent(
logflags = XFS_ILOG_CORE | xfs_ilog_fext(whichfork);
} else
logflags = 0;
- /* DELTA: single new extent */
- if (delta) {
- if (delta->xed_startoff > new->br_startoff)
- delta->xed_startoff = new->br_startoff;
- if (delta->xed_blockcount <
- new->br_startoff + new->br_blockcount)
- delta->xed_blockcount = new->br_startoff +
- new->br_blockcount;
- }
}
/*
* Any kind of new delayed allocation goes here.
@@ -542,7 +523,7 @@ xfs_bmap_add_extent(
ASSERT((cur->bc_private.b.flags &
XFS_BTCUR_BPRV_WASDEL) == 0);
if ((error = xfs_bmap_add_extent_hole_delay(ip, idx, new,
- &logflags, delta, rsvd)))
+ &logflags, rsvd)))
goto done;
}
/*
@@ -553,7 +534,7 @@ xfs_bmap_add_extent(
ASSERT((cur->bc_private.b.flags &
XFS_BTCUR_BPRV_WASDEL) == 0);
if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur, new,
- &logflags, delta, whichfork)))
+ &logflags, whichfork)))
goto done;
} else {
xfs_bmbt_irec_t prev; /* old extent at offset idx */
@@ -578,17 +559,17 @@ xfs_bmap_add_extent(
XFS_BTCUR_BPRV_WASDEL);
if ((error = xfs_bmap_add_extent_delay_real(ip,
idx, &cur, new, &da_new, first, flist,
- &logflags, delta, rsvd)))
+ &logflags, rsvd)))
goto done;
} else if (new->br_state == XFS_EXT_NORM) {
ASSERT(new->br_state == XFS_EXT_NORM);
if ((error = xfs_bmap_add_extent_unwritten_real(
- ip, idx, &cur, new, &logflags, delta)))
+ ip, idx, &cur, new, &logflags)))
goto done;
} else {
ASSERT(new->br_state == XFS_EXT_UNWRITTEN);
if ((error = xfs_bmap_add_extent_unwritten_real(
- ip, idx, &cur, new, &logflags, delta)))
+ ip, idx, &cur, new, &logflags)))
goto done;
}
ASSERT(*curp == cur || *curp == NULL);
@@ -601,7 +582,7 @@ xfs_bmap_add_extent(
ASSERT((cur->bc_private.b.flags &
XFS_BTCUR_BPRV_WASDEL) == 0);
if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur,
- new, &logflags, delta, whichfork)))
+ new, &logflags, whichfork)))
goto done;
}
}
@@ -666,7 +647,6 @@ xfs_bmap_add_extent_delay_real(
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int rsvd) /* OK to use reserved data block allocation */
{
xfs_btree_cur_t *cur; /* btree cursor */
@@ -797,11 +777,6 @@ xfs_bmap_add_extent_delay_real(
goto done;
}
*dnew = 0;
- /* DELTA: Three in-core extents are replaced by one. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
@@ -832,10 +807,6 @@ xfs_bmap_add_extent_delay_real(
goto done;
}
*dnew = 0;
- /* DELTA: Two in-core extents are replaced by one. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -867,10 +838,6 @@ xfs_bmap_add_extent_delay_real(
goto done;
}
*dnew = 0;
- /* DELTA: Two in-core extents are replaced by one. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
@@ -900,9 +867,6 @@ xfs_bmap_add_extent_delay_real(
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
*dnew = 0;
- /* DELTA: The in-core extent described by new changed type. */
- temp = new->br_startoff;
- temp2 = new->br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG:
@@ -942,10 +906,6 @@ xfs_bmap_add_extent_delay_real(
xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
*dnew = temp;
- /* DELTA: The boundary between two in-core extents moved. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING:
@@ -990,9 +950,6 @@ xfs_bmap_add_extent_delay_real(
xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
trace_xfs_bmap_post_update(ip, idx + 1, state, _THIS_IP_);
*dnew = temp;
- /* DELTA: One in-core extent is split in two. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1031,10 +988,6 @@ xfs_bmap_add_extent_delay_real(
xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
*dnew = temp;
- /* DELTA: The boundary between two in-core extents moved. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_RIGHT_FILLING:
@@ -1078,9 +1031,6 @@ xfs_bmap_add_extent_delay_real(
xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
*dnew = temp;
- /* DELTA: One in-core extent is split in two. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case 0:
@@ -1161,9 +1111,6 @@ xfs_bmap_add_extent_delay_real(
nullstartblock((int)temp2));
trace_xfs_bmap_post_update(ip, idx + 2, state, _THIS_IP_);
*dnew = temp + temp2;
- /* DELTA: One in-core extent is split in three. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
@@ -1179,13 +1126,6 @@ xfs_bmap_add_extent_delay_real(
ASSERT(0);
}
*curp = cur;
- if (delta) {
- temp2 += temp;
- if (delta->xed_startoff > temp)
- delta->xed_startoff = temp;
- if (delta->xed_blockcount < temp2)
- delta->xed_blockcount = temp2;
- }
done:
*logflagsp = rval;
return error;
@@ -1204,8 +1144,7 @@ xfs_bmap_add_extent_unwritten_real(
xfs_extnum_t idx, /* extent number to update/insert */
xfs_btree_cur_t **curp, /* if *curp is null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
- int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta) /* Change made to incore extents */
+ int *logflagsp) /* inode logging flags */
{
xfs_btree_cur_t *cur; /* btree cursor */
xfs_bmbt_rec_host_t *ep; /* extent entry for idx */
@@ -1219,8 +1158,6 @@ xfs_bmap_add_extent_unwritten_real(
/* left is 0, right is 1, prev is 2 */
int rval=0; /* return value (logging flags) */
int state = 0;/* state bits, accessed thru macros */
- xfs_filblks_t temp=0;
- xfs_filblks_t temp2=0;
#define LEFT r[0]
#define RIGHT r[1]
@@ -1341,11 +1278,6 @@ xfs_bmap_add_extent_unwritten_real(
RIGHT.br_blockcount, LEFT.br_state)))
goto done;
}
- /* DELTA: Three in-core extents are replaced by one. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
@@ -1382,10 +1314,6 @@ xfs_bmap_add_extent_unwritten_real(
LEFT.br_state)))
goto done;
}
- /* DELTA: Two in-core extents are replaced by one. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1422,10 +1350,6 @@ xfs_bmap_add_extent_unwritten_real(
newext)))
goto done;
}
- /* DELTA: Two in-core extents are replaced by one. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
@@ -1453,9 +1377,6 @@ xfs_bmap_add_extent_unwritten_real(
newext)))
goto done;
}
- /* DELTA: The in-core extent described by new changed type. */
- temp = new->br_startoff;
- temp2 = new->br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG:
@@ -1501,10 +1422,6 @@ xfs_bmap_add_extent_unwritten_real(
LEFT.br_state))
goto done;
}
- /* DELTA: The boundary between two in-core extents moved. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING:
@@ -1544,9 +1461,6 @@ xfs_bmap_add_extent_unwritten_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- /* DELTA: One in-core extent is split in two. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1587,10 +1501,6 @@ xfs_bmap_add_extent_unwritten_real(
newext)))
goto done;
}
- /* DELTA: The boundary between two in-core extents moved. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_RIGHT_FILLING:
@@ -1630,9 +1540,6 @@ xfs_bmap_add_extent_unwritten_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- /* DELTA: One in-core extent is split in two. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case 0:
@@ -1692,9 +1599,6 @@ xfs_bmap_add_extent_unwritten_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- /* DELTA: One in-core extent is split in three. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
@@ -1710,13 +1614,6 @@ xfs_bmap_add_extent_unwritten_real(
ASSERT(0);
}
*curp = cur;
- if (delta) {
- temp2 += temp;
- if (delta->xed_startoff > temp)
- delta->xed_startoff = temp;
- if (delta->xed_blockcount < temp2)
- delta->xed_blockcount = temp2;
- }
done:
*logflagsp = rval;
return error;
@@ -1736,7 +1633,6 @@ xfs_bmap_add_extent_hole_delay(
xfs_extnum_t idx, /* extent number to update/insert */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int rsvd) /* OK to allocate reserved blocks */
{
xfs_bmbt_rec_host_t *ep; /* extent record for idx */
@@ -1747,7 +1643,6 @@ xfs_bmap_add_extent_hole_delay(
xfs_bmbt_irec_t right; /* right neighbor extent entry */
int state; /* state bits, accessed thru macros */
xfs_filblks_t temp=0; /* temp for indirect calculations */
- xfs_filblks_t temp2=0;
ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
ep = xfs_iext_get_ext(ifp, idx);
@@ -1819,9 +1714,6 @@ xfs_bmap_add_extent_hole_delay(
xfs_iext_remove(ip, idx, 1, state);
ip->i_df.if_lastex = idx - 1;
- /* DELTA: Two in-core extents were replaced by one. */
- temp2 = temp;
- temp = left.br_startoff;
break;
case BMAP_LEFT_CONTIG:
@@ -1841,9 +1733,6 @@ xfs_bmap_add_extent_hole_delay(
trace_xfs_bmap_post_update(ip, idx - 1, state, _THIS_IP_);
ip->i_df.if_lastex = idx - 1;
- /* DELTA: One in-core extent grew into a hole. */
- temp2 = temp;
- temp = left.br_startoff;
break;
case BMAP_RIGHT_CONTIG:
@@ -1862,9 +1751,6 @@ xfs_bmap_add_extent_hole_delay(
trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
ip->i_df.if_lastex = idx;
- /* DELTA: One in-core extent grew into a hole. */
- temp2 = temp;
- temp = new->br_startoff;
break;
case 0:
@@ -1876,9 +1762,6 @@ xfs_bmap_add_extent_hole_delay(
oldlen = newlen = 0;
xfs_iext_insert(ip, idx, 1, new, state);
ip->i_df.if_lastex = idx;
- /* DELTA: A new in-core extent was added in a hole. */
- temp2 = new->br_blockcount;
- temp = new->br_startoff;
break;
}
if (oldlen != newlen) {
@@ -1889,13 +1772,6 @@ xfs_bmap_add_extent_hole_delay(
* Nothing to do for disk quota accounting here.
*/
}
- if (delta) {
- temp2 += temp;
- if (delta->xed_startoff > temp)
- delta->xed_startoff = temp;
- if (delta->xed_blockcount < temp2)
- delta->xed_blockcount = temp2;
- }
*logflagsp = 0;
return 0;
}
@@ -1911,7 +1787,6 @@ xfs_bmap_add_extent_hole_real(
xfs_btree_cur_t *cur, /* if null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork) /* data or attr fork */
{
xfs_bmbt_rec_host_t *ep; /* pointer to extent entry ins. point */
@@ -1922,8 +1797,6 @@ xfs_bmap_add_extent_hole_real(
xfs_bmbt_irec_t right; /* right neighbor extent entry */
int rval=0; /* return value (logging flags) */
int state; /* state bits, accessed thru macros */
- xfs_filblks_t temp=0;
- xfs_filblks_t temp2=0;
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(idx <= ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t));
@@ -2020,11 +1893,6 @@ xfs_bmap_add_extent_hole_real(
left.br_state)))
goto done;
}
- /* DELTA: Two in-core extents were replaced by one. */
- temp = left.br_startoff;
- temp2 = left.br_blockcount +
- new->br_blockcount +
- right.br_blockcount;
break;
case BMAP_LEFT_CONTIG:
@@ -2056,10 +1924,6 @@ xfs_bmap_add_extent_hole_real(
left.br_state)))
goto done;
}
- /* DELTA: One in-core extent grew. */
- temp = left.br_startoff;
- temp2 = left.br_blockcount +
- new->br_blockcount;
break;
case BMAP_RIGHT_CONTIG:
@@ -2092,10 +1956,6 @@ xfs_bmap_add_extent_hole_real(
right.br_state)))
goto done;
}
- /* DELTA: One in-core extent grew. */
- temp = new->br_startoff;
- temp2 = new->br_blockcount +
- right.br_blockcount;
break;
case 0:
@@ -2123,18 +1983,8 @@ xfs_bmap_add_extent_hole_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- /* DELTA: A new extent was added in a hole. */
- temp = new->br_startoff;
- temp2 = new->br_blockcount;
break;
}
- if (delta) {
- temp2 += temp;
- if (delta->xed_startoff > temp)
- delta->xed_startoff = temp;
- if (delta->xed_blockcount < temp2)
- delta->xed_blockcount = temp2;
- }
done:
*logflagsp = rval;
return error;
@@ -2959,7 +2809,6 @@ xfs_bmap_del_extent(
xfs_btree_cur_t *cur, /* if null, not a btree */
xfs_bmbt_irec_t *del, /* data to remove from extents */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork, /* data or attr fork */
int rsvd) /* OK to allocate reserved blocks */
{
@@ -3265,14 +3114,6 @@ xfs_bmap_del_extent(
if (da_old > da_new)
xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, (int64_t)(da_old - da_new),
rsvd);
- if (delta) {
- /* DELTA: report the original extent. */
- if (delta->xed_startoff > got.br_startoff)
- delta->xed_startoff = got.br_startoff;
- if (delta->xed_blockcount < got.br_startoff+got.br_blockcount)
- delta->xed_blockcount = got.br_startoff +
- got.br_blockcount;
- }
done:
*logflagsp = flags;
return error;
@@ -3754,9 +3595,10 @@ xfs_bmap_add_attrfork(
ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS;
}
ASSERT(ip->i_d.di_anextents == 0);
- IHOLD(ip);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+
+ xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
switch (ip->i_d.di_format) {
case XFS_DINODE_FMT_DEV:
ip->i_d.di_forkoff = roundup(sizeof(xfs_dev_t), 8) >> 3;
@@ -4483,8 +4325,7 @@ xfs_bmapi(
xfs_extlen_t total, /* total blocks needed */
xfs_bmbt_irec_t *mval, /* output: map values */
int *nmap, /* i/o: mval size/count */
- xfs_bmap_free_t *flist, /* i/o: list extents to free */
- xfs_extdelta_t *delta) /* o: change made to incore extents */
+ xfs_bmap_free_t *flist) /* i/o: list extents to free */
{
xfs_fsblock_t abno; /* allocated block number */
xfs_extlen_t alen; /* allocated extent length */
@@ -4596,10 +4437,7 @@ xfs_bmapi(
end = bno + len;
obno = bno;
bma.ip = NULL;
- if (delta) {
- delta->xed_startoff = NULLFILEOFF;
- delta->xed_blockcount = 0;
- }
+
while (bno < end && n < *nmap) {
/*
* Reading past eof, act as though there's a hole
@@ -4620,19 +4458,13 @@ xfs_bmapi(
* allocate the stuff asked for in this bmap call
* but that wouldn't be as good.
*/
- if (wasdelay && !(flags & XFS_BMAPI_EXACT)) {
+ if (wasdelay) {
alen = (xfs_extlen_t)got.br_blockcount;
aoff = got.br_startoff;
if (lastx != NULLEXTNUM && lastx) {
ep = xfs_iext_get_ext(ifp, lastx - 1);
xfs_bmbt_get_all(ep, &prev);
}
- } else if (wasdelay) {
- alen = (xfs_extlen_t)
- XFS_FILBLKS_MIN(len,
- (got.br_startoff +
- got.br_blockcount) - bno);
- aoff = bno;
} else {
alen = (xfs_extlen_t)
XFS_FILBLKS_MIN(len, MAXEXTLEN);
@@ -4831,7 +4663,7 @@ xfs_bmapi(
got.br_state = XFS_EXT_UNWRITTEN;
}
error = xfs_bmap_add_extent(ip, lastx, &cur, &got,
- firstblock, flist, &tmp_logflags, delta,
+ firstblock, flist, &tmp_logflags,
whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
logflags |= tmp_logflags;
if (error)
@@ -4927,7 +4759,7 @@ xfs_bmapi(
}
mval->br_state = XFS_EXT_NORM;
error = xfs_bmap_add_extent(ip, lastx, &cur, mval,
- firstblock, flist, &tmp_logflags, delta,
+ firstblock, flist, &tmp_logflags,
whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
logflags |= tmp_logflags;
if (error)
@@ -5017,14 +4849,6 @@ xfs_bmapi(
ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE ||
XFS_IFORK_NEXTENTS(ip, whichfork) > ifp->if_ext_max);
error = 0;
- if (delta && delta->xed_startoff != NULLFILEOFF) {
- /* A change was actually made.
- * Note that delta->xed_blockount is an offset at this
- * point and needs to be converted to a block count.
- */
- ASSERT(delta->xed_blockcount > delta->xed_startoff);
- delta->xed_blockcount -= delta->xed_startoff;
- }
error0:
/*
* Log everything. Do this after conversion, there's no point in
@@ -5136,8 +4960,6 @@ xfs_bunmapi(
xfs_fsblock_t *firstblock, /* first allocated block
controls a.g. for allocs */
xfs_bmap_free_t *flist, /* i/o: list extents to free */
- xfs_extdelta_t *delta, /* o: change made to incore
- extents */
int *done) /* set if not done yet */
{
xfs_btree_cur_t *cur; /* bmap btree cursor */
@@ -5196,10 +5018,7 @@ xfs_bunmapi(
bno = start + len - 1;
ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
&prev);
- if (delta) {
- delta->xed_startoff = NULLFILEOFF;
- delta->xed_blockcount = 0;
- }
+
/*
* Check to see if the given block number is past the end of the
* file, back up to the last block if so...
@@ -5297,7 +5116,7 @@ xfs_bunmapi(
}
del.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent(ip, lastx, &cur, &del,
- firstblock, flist, &logflags, delta,
+ firstblock, flist, &logflags,
XFS_DATA_FORK, 0);
if (error)
goto error0;
@@ -5352,7 +5171,7 @@ xfs_bunmapi(
prev.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent(ip, lastx - 1, &cur,
&prev, firstblock, flist, &logflags,
- delta, XFS_DATA_FORK, 0);
+ XFS_DATA_FORK, 0);
if (error)
goto error0;
goto nodelete;
@@ -5361,7 +5180,7 @@ xfs_bunmapi(
del.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent(ip, lastx, &cur,
&del, firstblock, flist, &logflags,
- delta, XFS_DATA_FORK, 0);
+ XFS_DATA_FORK, 0);
if (error)
goto error0;
goto nodelete;
@@ -5414,7 +5233,7 @@ xfs_bunmapi(
goto error0;
}
error = xfs_bmap_del_extent(ip, tp, lastx, flist, cur, &del,
- &tmp_logflags, delta, whichfork, rsvd);
+ &tmp_logflags, whichfork, rsvd);
logflags |= tmp_logflags;
if (error)
goto error0;
@@ -5471,14 +5290,6 @@ nodelete:
ASSERT(ifp->if_ext_max ==
XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
error = 0;
- if (delta && delta->xed_startoff != NULLFILEOFF) {
- /* A change was actually made.
- * Note that delta->xed_blockount is an offset at this
- * point and needs to be converted to a block count.
- */
- ASSERT(delta->xed_blockcount > delta->xed_startoff);
- delta->xed_blockcount -= delta->xed_startoff;
- }
error0:
/*
* Log everything. Do this after conversion, there's no point in
@@ -5605,28 +5416,6 @@ xfs_getbmap(
prealloced = 0;
fixlen = 1LL << 32;
} else {
- /*
- * If the BMV_IF_NO_DMAPI_READ interface bit specified, do
- * not generate a DMAPI read event. Otherwise, if the
- * DM_EVENT_READ bit is set for the file, generate a read
- * event in order that the DMAPI application may do its thing
- * before we return the extents. Usually this means restoring
- * user file data to regions of the file that look like holes.
- *
- * The "old behavior" (from XFS_IOC_GETBMAP) is to not specify
- * BMV_IF_NO_DMAPI_READ so that read events are generated.
- * If this were not true, callers of ioctl(XFS_IOC_GETBMAP)
- * could misinterpret holes in a DMAPI file as true holes,
- * when in fact they may represent offline user data.
- */
- if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) &&
- !(iflags & BMV_IF_NO_DMAPI_READ)) {
- error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip,
- 0, 0, 0, NULL);
- if (error)
- return XFS_ERROR(error);
- }
-
if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS &&
ip->i_d.di_format != XFS_DINODE_FMT_BTREE &&
ip->i_d.di_format != XFS_DINODE_FMT_LOCAL)
@@ -5713,7 +5502,7 @@ xfs_getbmap(
error = xfs_bmapi(NULL, ip, XFS_BB_TO_FSBT(mp, bmv->bmv_offset),
XFS_BB_TO_FSB(mp, bmv->bmv_length),
bmapi_flags, NULL, 0, map, &nmap,
- NULL, NULL);
+ NULL);
if (error)
goto out_free_map;
ASSERT(nmap <= subnex);
@@ -5859,66 +5648,34 @@ xfs_bmap_eof(
}
#ifdef DEBUG
-STATIC
-xfs_buf_t *
+STATIC struct xfs_buf *
xfs_bmap_get_bp(
- xfs_btree_cur_t *cur,
+ struct xfs_btree_cur *cur,
xfs_fsblock_t bno)
{
- int i;
- xfs_buf_t *bp;
+ struct xfs_log_item_desc *lidp;
+ int i;
if (!cur)
- return(NULL);
-
- bp = NULL;
- for(i = 0; i < XFS_BTREE_MAXLEVELS; i++) {
- bp = cur->bc_bufs[i];
- if (!bp) break;
- if (XFS_BUF_ADDR(bp) == bno)
- break; /* Found it */
- }
- if (i == XFS_BTREE_MAXLEVELS)
- bp = NULL;
-
- if (!bp) { /* Chase down all the log items to see if the bp is there */
- xfs_log_item_chunk_t *licp;
- xfs_trans_t *tp;
-
- tp = cur->bc_tp;
- licp = &tp->t_items;
- while (!bp && licp != NULL) {
- if (xfs_lic_are_all_free(licp)) {
- licp = licp->lic_next;
- continue;
- }
- for (i = 0; i < licp->lic_unused; i++) {
- xfs_log_item_desc_t *lidp;
- xfs_log_item_t *lip;
- xfs_buf_log_item_t *bip;
- xfs_buf_t *lbp;
-
- if (xfs_lic_isfree(licp, i)) {
- continue;
- }
-
- lidp = xfs_lic_slot(licp, i);
- lip = lidp->lid_item;
- if (lip->li_type != XFS_LI_BUF)
- continue;
+ return NULL;
- bip = (xfs_buf_log_item_t *)lip;
- lbp = bip->bli_buf;
+ for (i = 0; i < XFS_BTREE_MAXLEVELS; i++) {
+ if (!cur->bc_bufs[i])
+ break;
+ if (XFS_BUF_ADDR(cur->bc_bufs[i]) == bno)
+ return cur->bc_bufs[i];
+ }
- if (XFS_BUF_ADDR(lbp) == bno) {
- bp = lbp;
- break; /* Found it */
- }
- }
- licp = licp->lic_next;
- }
+ /* Chase down all the log items to see if the bp is there */
+ list_for_each_entry(lidp, &cur->bc_tp->t_items, lid_trans) {
+ struct xfs_buf_log_item *bip;
+ bip = (struct xfs_buf_log_item *)lidp->lid_item;
+ if (bip->bli_item.li_type == XFS_LI_BUF &&
+ XFS_BUF_ADDR(bip->bli_buf) == bno)
+ return bip->bli_buf;
}
- return(bp);
+
+ return NULL;
}
STATIC void
diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h
index 419dafb..b13569a 100644
--- a/fs/xfs/xfs_bmap.h
+++ b/fs/xfs/xfs_bmap.h
@@ -28,20 +28,6 @@ struct xfs_trans;
extern kmem_zone_t *xfs_bmap_free_item_zone;
/*
- * DELTA: describe a change to the in-core extent list.
- *
- * Internally the use of xed_blockount is somewhat funky.
- * xed_blockcount contains an offset much of the time because this
- * makes merging changes easier. (xfs_fileoff_t and xfs_filblks_t are
- * the same underlying type).
- */
-typedef struct xfs_extdelta
-{
- xfs_fileoff_t xed_startoff; /* offset of range */
- xfs_filblks_t xed_blockcount; /* blocks in range */
-} xfs_extdelta_t;
-
-/*
* List of extents to be free "later".
* The list is kept sorted on xbf_startblock.
*/
@@ -82,16 +68,13 @@ typedef struct xfs_bmap_free
#define XFS_BMAPI_DELAY 0x002 /* delayed write operation */
#define XFS_BMAPI_ENTIRE 0x004 /* return entire extent, not trimmed */
#define XFS_BMAPI_METADATA 0x008 /* mapping metadata not user data */
-#define XFS_BMAPI_EXACT 0x010 /* allocate only to spec'd bounds */
-#define XFS_BMAPI_ATTRFORK 0x020 /* use attribute fork not data */
-#define XFS_BMAPI_ASYNC 0x040 /* bunmapi xactions can be async */
-#define XFS_BMAPI_RSVBLOCKS 0x080 /* OK to alloc. reserved data blocks */
-#define XFS_BMAPI_PREALLOC 0x100 /* preallocation op: unwritten space */
-#define XFS_BMAPI_IGSTATE 0x200 /* Ignore state - */
+#define XFS_BMAPI_ATTRFORK 0x010 /* use attribute fork not data */
+#define XFS_BMAPI_RSVBLOCKS 0x020 /* OK to alloc. reserved data blocks */
+#define XFS_BMAPI_PREALLOC 0x040 /* preallocation op: unwritten space */
+#define XFS_BMAPI_IGSTATE 0x080 /* Ignore state - */
/* combine contig. space */
-#define XFS_BMAPI_CONTIG 0x400 /* must allocate only one extent */
-/* XFS_BMAPI_DIRECT_IO 0x800 */
-#define XFS_BMAPI_CONVERT 0x1000 /* unwritten extent conversion - */
+#define XFS_BMAPI_CONTIG 0x100 /* must allocate only one extent */
+#define XFS_BMAPI_CONVERT 0x200 /* unwritten extent conversion - */
/* need write cache flushing and no */
/* additional allocation alignments */
@@ -100,9 +83,7 @@ typedef struct xfs_bmap_free
{ XFS_BMAPI_DELAY, "DELAY" }, \
{ XFS_BMAPI_ENTIRE, "ENTIRE" }, \
{ XFS_BMAPI_METADATA, "METADATA" }, \
- { XFS_BMAPI_EXACT, "EXACT" }, \
{ XFS_BMAPI_ATTRFORK, "ATTRFORK" }, \
- { XFS_BMAPI_ASYNC, "ASYNC" }, \
{ XFS_BMAPI_RSVBLOCKS, "RSVBLOCKS" }, \
{ XFS_BMAPI_PREALLOC, "PREALLOC" }, \
{ XFS_BMAPI_IGSTATE, "IGSTATE" }, \
@@ -310,9 +291,7 @@ xfs_bmapi(
xfs_extlen_t total, /* total blocks needed */
struct xfs_bmbt_irec *mval, /* output: map values */
int *nmap, /* i/o: mval size/count */
- xfs_bmap_free_t *flist, /* i/o: list extents to free */
- xfs_extdelta_t *delta); /* o: change made to incore
- extents */
+ xfs_bmap_free_t *flist); /* i/o: list extents to free */
/*
* Map file blocks to filesystem blocks, simple version.
@@ -346,8 +325,6 @@ xfs_bunmapi(
xfs_fsblock_t *firstblock, /* first allocated block
controls a.g. for allocs */
xfs_bmap_free_t *flist, /* i/o: list extents to free */
- xfs_extdelta_t *delta, /* o: change made to incore
- extents */
int *done); /* set if not done yet */
/*
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index 416e47e..87d3c10 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -24,21 +24,16 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
#include "xfs_alloc.h"
#include "xfs_btree.h"
#include "xfs_btree_trace.h"
-#include "xfs_ialloc.h"
#include "xfs_itable.h"
#include "xfs_bmap.h"
#include "xfs_error.h"
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 96be4b0..829af92 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -24,20 +24,15 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
#include "xfs_btree.h"
#include "xfs_btree_trace.h"
-#include "xfs_ialloc.h"
#include "xfs_error.h"
#include "xfs_trace.h"
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 02a8098..1b09d7a 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -24,7 +24,6 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_buf_item.h"
#include "xfs_trans_priv.h"
@@ -34,6 +33,12 @@
kmem_zone_t *xfs_buf_item_zone;
+static inline struct xfs_buf_log_item *BUF_ITEM(struct xfs_log_item *lip)
+{
+ return container_of(lip, struct xfs_buf_log_item, bli_item);
+}
+
+
#ifdef XFS_TRANS_DEBUG
/*
* This function uses an alternate strategy for tracking the bytes
@@ -151,12 +156,13 @@ STATIC void xfs_buf_do_callbacks(xfs_buf_t *bp, xfs_log_item_t *lip);
*/
STATIC uint
xfs_buf_item_size(
- xfs_buf_log_item_t *bip)
+ struct xfs_log_item *lip)
{
- uint nvecs;
- int next_bit;
- int last_bit;
- xfs_buf_t *bp;
+ struct xfs_buf_log_item *bip = BUF_ITEM(lip);
+ struct xfs_buf *bp = bip->bli_buf;
+ uint nvecs;
+ int next_bit;
+ int last_bit;
ASSERT(atomic_read(&bip->bli_refcount) > 0);
if (bip->bli_flags & XFS_BLI_STALE) {
@@ -170,7 +176,6 @@ xfs_buf_item_size(
return 1;
}
- bp = bip->bli_buf;
ASSERT(bip->bli_flags & XFS_BLI_LOGGED);
nvecs = 1;
last_bit = xfs_next_bit(bip->bli_format.blf_data_map,
@@ -219,13 +224,13 @@ xfs_buf_item_size(
*/
STATIC void
xfs_buf_item_format(
- xfs_buf_log_item_t *bip,
- xfs_log_iovec_t *log_vector)
+ struct xfs_log_item *lip,
+ struct xfs_log_iovec *vecp)
{
+ struct xfs_buf_log_item *bip = BUF_ITEM(lip);
+ struct xfs_buf *bp = bip->bli_buf;
uint base_size;
uint nvecs;
- xfs_log_iovec_t *vecp;
- xfs_buf_t *bp;
int first_bit;
int last_bit;
int next_bit;
@@ -235,8 +240,6 @@ xfs_buf_item_format(
ASSERT(atomic_read(&bip->bli_refcount) > 0);
ASSERT((bip->bli_flags & XFS_BLI_LOGGED) ||
(bip->bli_flags & XFS_BLI_STALE));
- bp = bip->bli_buf;
- vecp = log_vector;
/*
* The size of the base structure is the size of the
@@ -248,7 +251,7 @@ xfs_buf_item_format(
base_size =
(uint)(sizeof(xfs_buf_log_format_t) +
((bip->bli_format.blf_map_size - 1) * sizeof(uint)));
- vecp->i_addr = (xfs_caddr_t)&bip->bli_format;
+ vecp->i_addr = &bip->bli_format;
vecp->i_len = base_size;
vecp->i_type = XLOG_REG_TYPE_BFORMAT;
vecp++;
@@ -263,7 +266,7 @@ xfs_buf_item_format(
*/
if (bip->bli_flags & XFS_BLI_INODE_BUF) {
if (!((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) &&
- xfs_log_item_in_current_chkpt(&bip->bli_item)))
+ xfs_log_item_in_current_chkpt(lip)))
bip->bli_format.blf_flags |= XFS_BLF_INODE_BUF;
bip->bli_flags &= ~XFS_BLI_INODE_BUF;
}
@@ -356,66 +359,90 @@ xfs_buf_item_format(
/*
* This is called to pin the buffer associated with the buf log item in memory
- * so it cannot be written out. Simply call bpin() on the buffer to do this.
+ * so it cannot be written out.
*
* We also always take a reference to the buffer log item here so that the bli
* is held while the item is pinned in memory. This means that we can
* unconditionally drop the reference count a transaction holds when the
* transaction is completed.
*/
-
STATIC void
xfs_buf_item_pin(
- xfs_buf_log_item_t *bip)
+ struct xfs_log_item *lip)
{
- xfs_buf_t *bp;
+ struct xfs_buf_log_item *bip = BUF_ITEM(lip);
- bp = bip->bli_buf;
- ASSERT(XFS_BUF_ISBUSY(bp));
+ ASSERT(XFS_BUF_ISBUSY(bip->bli_buf));
ASSERT(atomic_read(&bip->bli_refcount) > 0);
ASSERT((bip->bli_flags & XFS_BLI_LOGGED) ||
(bip->bli_flags & XFS_BLI_STALE));
- atomic_inc(&bip->bli_refcount);
+
trace_xfs_buf_item_pin(bip);
- xfs_bpin(bp);
-}
+ atomic_inc(&bip->bli_refcount);
+ atomic_inc(&bip->bli_buf->b_pin_count);
+}
/*
* This is called to unpin the buffer associated with the buf log
* item which was previously pinned with a call to xfs_buf_item_pin().
- * Just call bunpin() on the buffer to do this.
*
* Also drop the reference to the buf item for the current transaction.
* If the XFS_BLI_STALE flag is set and we are the last reference,
* then free up the buf log item and unlock the buffer.
+ *
+ * If the remove flag is set we are called from uncommit in the
+ * forced-shutdown path. If that is true and the reference count on
+ * the log item is going to drop to zero we need to free the item's
+ * descriptor in the transaction.
*/
STATIC void
xfs_buf_item_unpin(
- xfs_buf_log_item_t *bip)
+ struct xfs_log_item *lip,
+ int remove)
{
- struct xfs_ail *ailp;
- xfs_buf_t *bp;
- int freed;
+ struct xfs_buf_log_item *bip = BUF_ITEM(lip);
+ xfs_buf_t *bp = bip->bli_buf;
+ struct xfs_ail *ailp = lip->li_ailp;
int stale = bip->bli_flags & XFS_BLI_STALE;
+ int freed;
- bp = bip->bli_buf;
- ASSERT(bp != NULL);
ASSERT(XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *) == bip);
ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
trace_xfs_buf_item_unpin(bip);
freed = atomic_dec_and_test(&bip->bli_refcount);
- ailp = bip->bli_item.li_ailp;
- xfs_bunpin(bp);
+
+ if (atomic_dec_and_test(&bp->b_pin_count))
+ wake_up_all(&bp->b_waiters);
+
if (freed && stale) {
ASSERT(bip->bli_flags & XFS_BLI_STALE);
ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
ASSERT(!(XFS_BUF_ISDELAYWRITE(bp)));
ASSERT(XFS_BUF_ISSTALE(bp));
ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL);
+
trace_xfs_buf_item_unpin_stale(bip);
+ if (remove) {
+ /*
+ * We have to remove the log item from the transaction
+ * as we are about to release our reference to the
+ * buffer. If we don't, the unlock that occurs later
+ * in xfs_trans_uncommit() will ry to reference the
+ * buffer which we no longer have a hold on.
+ */
+ xfs_trans_del_item(lip);
+
+ /*
+ * Since the transaction no longer refers to the buffer,
+ * the buffer should no longer refer to the transaction.
+ */
+ XFS_BUF_SET_FSPRIVATE2(bp, NULL);
+ }
+
/*
* If we get called here because of an IO error, we may
* or may not have the item on the AIL. xfs_trans_ail_delete()
@@ -437,48 +464,6 @@ xfs_buf_item_unpin(
}
/*
- * this is called from uncommit in the forced-shutdown path.
- * we need to check to see if the reference count on the log item
- * is going to drop to zero. If so, unpin will free the log item
- * so we need to free the item's descriptor (that points to the item)
- * in the transaction.
- */
-STATIC void
-xfs_buf_item_unpin_remove(
- xfs_buf_log_item_t *bip,
- xfs_trans_t *tp)
-{
- /* will xfs_buf_item_unpin() call xfs_buf_item_relse()? */
- if ((atomic_read(&bip->bli_refcount) == 1) &&
- (bip->bli_flags & XFS_BLI_STALE)) {
- /*
- * yes -- We can safely do some work here and then call
- * buf_item_unpin to do the rest because we are
- * are holding the buffer locked so no one else will be
- * able to bump up the refcount. We have to remove the
- * log item from the transaction as we are about to release
- * our reference to the buffer. If we don't, the unlock that
- * occurs later in the xfs_trans_uncommit() will try to
- * reference the buffer which we no longer have a hold on.
- */
- struct xfs_log_item_desc *lidp;
-
- ASSERT(XFS_BUF_VALUSEMA(bip->bli_buf) <= 0);
- trace_xfs_buf_item_unpin_stale(bip);
-
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t *)bip);
- xfs_trans_free_item(tp, lidp);
-
- /*
- * Since the transaction no longer refers to the buffer, the
- * buffer should no longer refer to the transaction.
- */
- XFS_BUF_SET_FSPRIVATE2(bip->bli_buf, NULL);
- }
- xfs_buf_item_unpin(bip);
-}
-
-/*
* This is called to attempt to lock the buffer associated with this
* buf log item. Don't sleep on the buffer lock. If we can't get
* the lock right away, return 0. If we can get the lock, take a
@@ -488,11 +473,11 @@ xfs_buf_item_unpin_remove(
*/
STATIC uint
xfs_buf_item_trylock(
- xfs_buf_log_item_t *bip)
+ struct xfs_log_item *lip)
{
- xfs_buf_t *bp;
+ struct xfs_buf_log_item *bip = BUF_ITEM(lip);
+ struct xfs_buf *bp = bip->bli_buf;
- bp = bip->bli_buf;
if (XFS_BUF_ISPINNED(bp))
return XFS_ITEM_PINNED;
if (!XFS_BUF_CPSEMA(bp))
@@ -529,13 +514,12 @@ xfs_buf_item_trylock(
*/
STATIC void
xfs_buf_item_unlock(
- xfs_buf_log_item_t *bip)
+ struct xfs_log_item *lip)
{
- int aborted;
- xfs_buf_t *bp;
- uint hold;
-
- bp = bip->bli_buf;
+ struct xfs_buf_log_item *bip = BUF_ITEM(lip);
+ struct xfs_buf *bp = bip->bli_buf;
+ int aborted;
+ uint hold;
/* Clear the buffer's association with this transaction. */
XFS_BUF_SET_FSPRIVATE2(bp, NULL);
@@ -546,7 +530,7 @@ xfs_buf_item_unlock(
* (cancelled) buffers at unpin time, but we'll never go through the
* pin/unpin cycle if we abort inside commit.
*/
- aborted = (bip->bli_item.li_flags & XFS_LI_ABORTED) != 0;
+ aborted = (lip->li_flags & XFS_LI_ABORTED) != 0;
/*
* Before possibly freeing the buf item, determine if we should
@@ -607,16 +591,16 @@ xfs_buf_item_unlock(
*/
STATIC xfs_lsn_t
xfs_buf_item_committed(
- xfs_buf_log_item_t *bip,
+ struct xfs_log_item *lip,
xfs_lsn_t lsn)
{
+ struct xfs_buf_log_item *bip = BUF_ITEM(lip);
+
trace_xfs_buf_item_committed(bip);
- if ((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) &&
- (bip->bli_item.li_lsn != 0)) {
- return bip->bli_item.li_lsn;
- }
- return (lsn);
+ if ((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) && lip->li_lsn != 0)
+ return lip->li_lsn;
+ return lsn;
}
/*
@@ -626,15 +610,16 @@ xfs_buf_item_committed(
*/
STATIC void
xfs_buf_item_push(
- xfs_buf_log_item_t *bip)
+ struct xfs_log_item *lip)
{
- xfs_buf_t *bp;
+ struct xfs_buf_log_item *bip = BUF_ITEM(lip);
+ struct xfs_buf *bp = bip->bli_buf;
ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+ ASSERT(!XFS_BUF_ISDELAYWRITE(bp));
+
trace_xfs_buf_item_push(bip);
- bp = bip->bli_buf;
- ASSERT(!XFS_BUF_ISDELAYWRITE(bp));
xfs_buf_relse(bp);
}
@@ -646,22 +631,24 @@ xfs_buf_item_push(
*/
STATIC void
xfs_buf_item_pushbuf(
- xfs_buf_log_item_t *bip)
+ struct xfs_log_item *lip)
{
- xfs_buf_t *bp;
+ struct xfs_buf_log_item *bip = BUF_ITEM(lip);
+ struct xfs_buf *bp = bip->bli_buf;
ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+ ASSERT(XFS_BUF_ISDELAYWRITE(bp));
+
trace_xfs_buf_item_pushbuf(bip);
- bp = bip->bli_buf;
- ASSERT(XFS_BUF_ISDELAYWRITE(bp));
xfs_buf_delwri_promote(bp);
xfs_buf_relse(bp);
}
-/* ARGSUSED */
STATIC void
-xfs_buf_item_committing(xfs_buf_log_item_t *bip, xfs_lsn_t commit_lsn)
+xfs_buf_item_committing(
+ struct xfs_log_item *lip,
+ xfs_lsn_t commit_lsn)
{
}
@@ -669,21 +656,16 @@ xfs_buf_item_committing(xfs_buf_log_item_t *bip, xfs_lsn_t commit_lsn)
* This is the ops vector shared by all buf log items.
*/
static struct xfs_item_ops xfs_buf_item_ops = {
- .iop_size = (uint(*)(xfs_log_item_t*))xfs_buf_item_size,
- .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
- xfs_buf_item_format,
- .iop_pin = (void(*)(xfs_log_item_t*))xfs_buf_item_pin,
- .iop_unpin = (void(*)(xfs_log_item_t*))xfs_buf_item_unpin,
- .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t *))
- xfs_buf_item_unpin_remove,
- .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_buf_item_trylock,
- .iop_unlock = (void(*)(xfs_log_item_t*))xfs_buf_item_unlock,
- .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_buf_item_committed,
- .iop_push = (void(*)(xfs_log_item_t*))xfs_buf_item_push,
- .iop_pushbuf = (void(*)(xfs_log_item_t*))xfs_buf_item_pushbuf,
- .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_buf_item_committing
+ .iop_size = xfs_buf_item_size,
+ .iop_format = xfs_buf_item_format,
+ .iop_pin = xfs_buf_item_pin,
+ .iop_unpin = xfs_buf_item_unpin,
+ .iop_trylock = xfs_buf_item_trylock,
+ .iop_unlock = xfs_buf_item_unlock,
+ .iop_committed = xfs_buf_item_committed,
+ .iop_push = xfs_buf_item_push,
+ .iop_pushbuf = xfs_buf_item_pushbuf,
+ .iop_committing = xfs_buf_item_committing
};
@@ -712,7 +694,6 @@ xfs_buf_item_init(
*/
if (bp->b_mount != mp)
bp->b_mount = mp;
- XFS_BUF_SET_BDSTRAT_FUNC(bp, xfs_bdstrat_cb);
if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
if (lip->li_type == XFS_LI_BUF) {
@@ -1098,15 +1079,14 @@ xfs_buf_error_relse(
* It is called by xfs_buf_iodone_callbacks() above which will take
* care of cleaning up the buffer itself.
*/
-/* ARGSUSED */
void
xfs_buf_iodone(
- xfs_buf_t *bp,
- xfs_buf_log_item_t *bip)
+ struct xfs_buf *bp,
+ struct xfs_log_item *lip)
{
- struct xfs_ail *ailp = bip->bli_item.li_ailp;
+ struct xfs_ail *ailp = lip->li_ailp;
- ASSERT(bip->bli_buf == bp);
+ ASSERT(BUF_ITEM(lip)->bli_buf == bp);
xfs_buf_rele(bp);
@@ -1120,6 +1100,6 @@ xfs_buf_iodone(
* Either way, AIL is useless if we're forcing a shutdown.
*/
spin_lock(&ailp->xa_lock);
- xfs_trans_ail_delete(ailp, (xfs_log_item_t *)bip);
- xfs_buf_item_free(bip);
+ xfs_trans_ail_delete(ailp, lip);
+ xfs_buf_item_free(BUF_ITEM(lip));
}
diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h
index f20bb47..0e2ed43 100644
--- a/fs/xfs/xfs_buf_item.h
+++ b/fs/xfs/xfs_buf_item.h
@@ -124,7 +124,7 @@ void xfs_buf_attach_iodone(struct xfs_buf *,
void(*)(struct xfs_buf *, xfs_log_item_t *),
xfs_log_item_t *);
void xfs_buf_iodone_callbacks(struct xfs_buf *);
-void xfs_buf_iodone(struct xfs_buf *, xfs_buf_log_item_t *);
+void xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *);
#ifdef XFS_TRANS_DEBUG
void
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 0ca556b..30fa0e2 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -25,19 +25,14 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
#include "xfs_alloc.h"
-#include "xfs_btree.h"
#include "xfs_bmap.h"
#include "xfs_attr.h"
#include "xfs_attr_leaf.h"
@@ -581,16 +576,14 @@ xfs_da_node_add(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
xfs_da_intnode_t *node;
xfs_da_node_entry_t *btree;
int tmp;
- xfs_mount_t *mp;
node = oldblk->bp->data;
- mp = state->mp;
ASSERT(be16_to_cpu(node->hdr.info.magic) == XFS_DA_NODE_MAGIC);
ASSERT((oldblk->index >= 0) && (oldblk->index <= be16_to_cpu(node->hdr.count)));
ASSERT(newblk->blkno != 0);
if (state->args->whichfork == XFS_DATA_FORK)
- ASSERT(newblk->blkno >= mp->m_dirleafblk &&
- newblk->blkno < mp->m_dirfreeblk);
+ ASSERT(newblk->blkno >= state->mp->m_dirleafblk &&
+ newblk->blkno < state->mp->m_dirfreeblk);
/*
* We may need to make some room before we insert the new node.
@@ -1601,7 +1594,7 @@ xfs_da_grow_inode(xfs_da_args_t *args, xfs_dablk_t *new_blkno)
xfs_bmapi_aflag(w)|XFS_BMAPI_WRITE|XFS_BMAPI_METADATA|
XFS_BMAPI_CONTIG,
args->firstblock, args->total, &map, &nmap,
- args->flist, NULL))) {
+ args->flist))) {
return error;
}
ASSERT(nmap <= 1);
@@ -1622,8 +1615,7 @@ xfs_da_grow_inode(xfs_da_args_t *args, xfs_dablk_t *new_blkno)
xfs_bmapi_aflag(w)|XFS_BMAPI_WRITE|
XFS_BMAPI_METADATA,
args->firstblock, args->total,
- &mapp[mapi], &nmap, args->flist,
- NULL))) {
+ &mapp[mapi], &nmap, args->flist))) {
kmem_free(mapp);
return error;
}
@@ -1884,7 +1876,7 @@ xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
*/
if ((error = xfs_bunmapi(tp, dp, dead_blkno, count,
xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA,
- 0, args->firstblock, args->flist, NULL,
+ 0, args->firstblock, args->flist,
&done)) == ENOSPC) {
if (w != XFS_DATA_FORK)
break;
@@ -1989,7 +1981,7 @@ xfs_da_do_buf(
nfsb,
XFS_BMAPI_METADATA |
xfs_bmapi_aflag(whichfork),
- NULL, 0, mapp, &nmap, NULL, NULL)))
+ NULL, 0, mapp, &nmap, NULL)))
goto exit0;
}
} else {
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index 7f159d2..3b9582c 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -24,24 +24,15 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
#include "xfs_bmap.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
#include "xfs_itable.h"
#include "xfs_dfrag.h"
#include "xfs_error.h"
-#include "xfs_rw.h"
#include "xfs_vnodeops.h"
#include "xfs_trace.h"
@@ -425,11 +416,8 @@ xfs_swap_extents(
}
- IHOLD(ip);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-
- IHOLD(tip);
- xfs_trans_ijoin(tp, tip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, tip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
xfs_trans_log_inode(tp, ip, ilf_fields);
xfs_trans_log_inode(tp, tip, tilf_fields);
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index 42520f0..a1321bc 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -25,13 +25,11 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
@@ -382,7 +380,7 @@ xfs_readdir(
int rval; /* return value */
int v; /* type-checking value */
- xfs_itrace_entry(dp);
+ trace_xfs_readdir(dp);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return XFS_ERROR(EIO);
@@ -549,7 +547,7 @@ xfs_dir2_grow_inode(
if ((error = xfs_bmapi(tp, dp, bno, count,
XFS_BMAPI_WRITE|XFS_BMAPI_METADATA|XFS_BMAPI_CONTIG,
args->firstblock, args->total, &map, &nmap,
- args->flist, NULL)))
+ args->flist)))
return error;
ASSERT(nmap <= 1);
if (nmap == 1) {
@@ -581,8 +579,7 @@ xfs_dir2_grow_inode(
if ((error = xfs_bmapi(tp, dp, b, c,
XFS_BMAPI_WRITE|XFS_BMAPI_METADATA,
args->firstblock, args->total,
- &mapp[mapi], &nmap, args->flist,
- NULL))) {
+ &mapp[mapi], &nmap, args->flist))) {
kmem_free(mapp);
return error;
}
@@ -715,7 +712,7 @@ xfs_dir2_shrink_inode(
*/
if ((error = xfs_bunmapi(tp, dp, da, mp->m_dirblkfsbs,
XFS_BMAPI_METADATA, 0, args->firstblock, args->flist,
- NULL, &done))) {
+ &done))) {
/*
* ENOSPC actually can happen if we're in a removename with
* no space reservation, and the resulting block removal
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 779a267..580d99c 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -24,12 +24,10 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
@@ -1073,10 +1071,10 @@ xfs_dir2_sf_to_block(
*/
buf_len = dp->i_df.if_bytes;
- buf = kmem_alloc(dp->i_df.if_bytes, KM_SLEEP);
+ buf = kmem_alloc(buf_len, KM_SLEEP);
- memcpy(buf, sfp, dp->i_df.if_bytes);
- xfs_idata_realloc(dp, -dp->i_df.if_bytes, XFS_DATA_FORK);
+ memcpy(buf, sfp, buf_len);
+ xfs_idata_realloc(dp, -buf_len, XFS_DATA_FORK);
dp->i_d.di_size = 0;
xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
/*
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 498f8d6..921595b 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -24,12 +24,10 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_dir2_data.h"
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index e2d8985..504be86 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -25,11 +25,9 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
-#include "xfs_attr_sf.h"
#include "xfs_dir2_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
@@ -875,7 +873,7 @@ xfs_dir2_leaf_getdents(
xfs_dir2_byte_to_da(mp,
XFS_DIR2_LEAF_OFFSET) - map_off,
XFS_BMAPI_METADATA, NULL, 0,
- &map[map_valid], &nmap, NULL, NULL);
+ &map[map_valid], &nmap, NULL);
/*
* Don't know if we should ignore this or
* try to return an error.
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 78fc4d9..f9a0864 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -24,12 +24,10 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_bmap.h"
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index c1a5945..b1bae6b 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -24,12 +24,10 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
diff --git a/fs/xfs/xfs_dmapi.h b/fs/xfs/xfs_dmapi.h
deleted file mode 100644
index 2813cdd..0000000
--- a/fs/xfs/xfs_dmapi.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * Copyright (c) 2000-2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#ifndef __XFS_DMAPI_H__
-#define __XFS_DMAPI_H__
-
-/* Values used to define the on-disk version of dm_attrname_t. All
- * on-disk attribute names start with the 8-byte string "SGI_DMI_".
- *
- * In the on-disk inode, DMAPI attribute names consist of the user-provided
- * name with the DMATTR_PREFIXSTRING pre-pended. This string must NEVER be
- * changed.
- */
-
-#define DMATTR_PREFIXLEN 8
-#define DMATTR_PREFIXSTRING "SGI_DMI_"
-
-typedef enum {
- DM_EVENT_INVALID = -1,
- DM_EVENT_CANCEL = 0, /* not supported */
- DM_EVENT_MOUNT = 1,
- DM_EVENT_PREUNMOUNT = 2,
- DM_EVENT_UNMOUNT = 3,
- DM_EVENT_DEBUT = 4, /* not supported */
- DM_EVENT_CREATE = 5,
- DM_EVENT_CLOSE = 6, /* not supported */
- DM_EVENT_POSTCREATE = 7,
- DM_EVENT_REMOVE = 8,
- DM_EVENT_POSTREMOVE = 9,
- DM_EVENT_RENAME = 10,
- DM_EVENT_POSTRENAME = 11,
- DM_EVENT_LINK = 12,
- DM_EVENT_POSTLINK = 13,
- DM_EVENT_SYMLINK = 14,
- DM_EVENT_POSTSYMLINK = 15,
- DM_EVENT_READ = 16,
- DM_EVENT_WRITE = 17,
- DM_EVENT_TRUNCATE = 18,
- DM_EVENT_ATTRIBUTE = 19,
- DM_EVENT_DESTROY = 20,
- DM_EVENT_NOSPACE = 21,
- DM_EVENT_USER = 22,
- DM_EVENT_MAX = 23
-} dm_eventtype_t;
-#define HAVE_DM_EVENTTYPE_T
-
-typedef enum {
- DM_RIGHT_NULL,
- DM_RIGHT_SHARED,
- DM_RIGHT_EXCL
-} dm_right_t;
-#define HAVE_DM_RIGHT_T
-
-/* Defines for determining if an event message should be sent. */
-#ifdef HAVE_DMAPI
-#define DM_EVENT_ENABLED(ip, event) ( \
- unlikely ((ip)->i_mount->m_flags & XFS_MOUNT_DMAPI) && \
- ( ((ip)->i_d.di_dmevmask & (1 << event)) || \
- ((ip)->i_mount->m_dmevmask & (1 << event)) ) \
- )
-#else
-#define DM_EVENT_ENABLED(ip, event) (0)
-#endif
-
-#define DM_XFS_VALID_FS_EVENTS ( \
- (1 << DM_EVENT_PREUNMOUNT) | \
- (1 << DM_EVENT_UNMOUNT) | \
- (1 << DM_EVENT_NOSPACE) | \
- (1 << DM_EVENT_DEBUT) | \
- (1 << DM_EVENT_CREATE) | \
- (1 << DM_EVENT_POSTCREATE) | \
- (1 << DM_EVENT_REMOVE) | \
- (1 << DM_EVENT_POSTREMOVE) | \
- (1 << DM_EVENT_RENAME) | \
- (1 << DM_EVENT_POSTRENAME) | \
- (1 << DM_EVENT_LINK) | \
- (1 << DM_EVENT_POSTLINK) | \
- (1 << DM_EVENT_SYMLINK) | \
- (1 << DM_EVENT_POSTSYMLINK) | \
- (1 << DM_EVENT_ATTRIBUTE) | \
- (1 << DM_EVENT_DESTROY) )
-
-/* Events valid in dm_set_eventlist() when called with a file handle for
- a regular file or a symlink. These events are persistent.
-*/
-
-#define DM_XFS_VALID_FILE_EVENTS ( \
- (1 << DM_EVENT_ATTRIBUTE) | \
- (1 << DM_EVENT_DESTROY) )
-
-/* Events valid in dm_set_eventlist() when called with a file handle for
- a directory. These events are persistent.
-*/
-
-#define DM_XFS_VALID_DIRECTORY_EVENTS ( \
- (1 << DM_EVENT_CREATE) | \
- (1 << DM_EVENT_POSTCREATE) | \
- (1 << DM_EVENT_REMOVE) | \
- (1 << DM_EVENT_POSTREMOVE) | \
- (1 << DM_EVENT_RENAME) | \
- (1 << DM_EVENT_POSTRENAME) | \
- (1 << DM_EVENT_LINK) | \
- (1 << DM_EVENT_POSTLINK) | \
- (1 << DM_EVENT_SYMLINK) | \
- (1 << DM_EVENT_POSTSYMLINK) | \
- (1 << DM_EVENT_ATTRIBUTE) | \
- (1 << DM_EVENT_DESTROY) )
-
-/* Events supported by the XFS filesystem. */
-#define DM_XFS_SUPPORTED_EVENTS ( \
- (1 << DM_EVENT_MOUNT) | \
- (1 << DM_EVENT_PREUNMOUNT) | \
- (1 << DM_EVENT_UNMOUNT) | \
- (1 << DM_EVENT_NOSPACE) | \
- (1 << DM_EVENT_CREATE) | \
- (1 << DM_EVENT_POSTCREATE) | \
- (1 << DM_EVENT_REMOVE) | \
- (1 << DM_EVENT_POSTREMOVE) | \
- (1 << DM_EVENT_RENAME) | \
- (1 << DM_EVENT_POSTRENAME) | \
- (1 << DM_EVENT_LINK) | \
- (1 << DM_EVENT_POSTLINK) | \
- (1 << DM_EVENT_SYMLINK) | \
- (1 << DM_EVENT_POSTSYMLINK) | \
- (1 << DM_EVENT_READ) | \
- (1 << DM_EVENT_WRITE) | \
- (1 << DM_EVENT_TRUNCATE) | \
- (1 << DM_EVENT_ATTRIBUTE) | \
- (1 << DM_EVENT_DESTROY) )
-
-
-/*
- * Definitions used for the flags field on dm_send_*_event().
- */
-
-#define DM_FLAGS_NDELAY 0x001 /* return EAGAIN after dm_pending() */
-#define DM_FLAGS_UNWANTED 0x002 /* event not in fsys dm_eventset_t */
-#define DM_FLAGS_IMUX 0x004 /* thread holds i_mutex */
-#define DM_FLAGS_IALLOCSEM_RD 0x010 /* thread holds i_alloc_sem rd */
-#define DM_FLAGS_IALLOCSEM_WR 0x020 /* thread holds i_alloc_sem wr */
-
-/*
- * Pull in platform specific event flags defines
- */
-#include "xfs_dmapi_priv.h"
-
-/*
- * Macros to turn caller specified delay/block flags into
- * dm_send_xxxx_event flag DM_FLAGS_NDELAY.
- */
-
-#define FILP_DELAY_FLAG(filp) ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) ? \
- DM_FLAGS_NDELAY : 0)
-#define AT_DELAY_FLAG(f) ((f & XFS_ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0)
-
-#endif /* __XFS_DMAPI_H__ */
diff --git a/fs/xfs/xfs_dmops.c b/fs/xfs/xfs_dmops.c
deleted file mode 100644
index e71e258..0000000
--- a/fs/xfs/xfs_dmops.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include "xfs.h"
-#include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_dmapi.h"
-#include "xfs_inum.h"
-#include "xfs_ag.h"
-#include "xfs_mount.h"
-
-
-static struct xfs_dmops xfs_dmcore_stub = {
- .xfs_send_data = (xfs_send_data_t)fs_nosys,
- .xfs_send_mmap = (xfs_send_mmap_t)fs_noerr,
- .xfs_send_destroy = (xfs_send_destroy_t)fs_nosys,
- .xfs_send_namesp = (xfs_send_namesp_t)fs_nosys,
- .xfs_send_mount = (xfs_send_mount_t)fs_nosys,
- .xfs_send_unmount = (xfs_send_unmount_t)fs_noerr,
-};
-
-int
-xfs_dmops_get(struct xfs_mount *mp)
-{
- if (mp->m_flags & XFS_MOUNT_DMAPI) {
- cmn_err(CE_WARN,
- "XFS: dmapi support not available in this kernel.");
- return EINVAL;
- }
-
- mp->m_dm_ops = &xfs_dmcore_stub;
- return 0;
-}
-
-void
-xfs_dmops_put(struct xfs_mount *mp)
-{
-}
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index 047b8a8..ed99902 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -23,12 +23,8 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_utils.h"
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index 409fe81..a55e687 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -24,7 +24,6 @@
#include "xfs_buf_item.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_trans_priv.h"
#include "xfs_extfree_item.h"
@@ -33,18 +32,19 @@
kmem_zone_t *xfs_efi_zone;
kmem_zone_t *xfs_efd_zone;
-STATIC void xfs_efi_item_unlock(xfs_efi_log_item_t *);
+static inline struct xfs_efi_log_item *EFI_ITEM(struct xfs_log_item *lip)
+{
+ return container_of(lip, struct xfs_efi_log_item, efi_item);
+}
void
-xfs_efi_item_free(xfs_efi_log_item_t *efip)
+xfs_efi_item_free(
+ struct xfs_efi_log_item *efip)
{
- int nexts = efip->efi_format.efi_nextents;
-
- if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+ if (efip->efi_format.efi_nextents > XFS_EFI_MAX_FAST_EXTENTS)
kmem_free(efip);
- } else {
+ else
kmem_zone_free(xfs_efi_zone, efip);
- }
}
/*
@@ -52,9 +52,9 @@ xfs_efi_item_free(xfs_efi_log_item_t *efip)
* We only need 1 iovec for an efi item. It just logs the efi_log_format
* structure.
*/
-/*ARGSUSED*/
STATIC uint
-xfs_efi_item_size(xfs_efi_log_item_t *efip)
+xfs_efi_item_size(
+ struct xfs_log_item *lip)
{
return 1;
}
@@ -67,10 +67,12 @@ xfs_efi_item_size(xfs_efi_log_item_t *efip)
* slots in the efi item have been filled.
*/
STATIC void
-xfs_efi_item_format(xfs_efi_log_item_t *efip,
- xfs_log_iovec_t *log_vector)
+xfs_efi_item_format(
+ struct xfs_log_item *lip,
+ struct xfs_log_iovec *log_vector)
{
- uint size;
+ struct xfs_efi_log_item *efip = EFI_ITEM(lip);
+ uint size;
ASSERT(efip->efi_next_extent == efip->efi_format.efi_nextents);
@@ -80,7 +82,7 @@ xfs_efi_item_format(xfs_efi_log_item_t *efip,
size += (efip->efi_format.efi_nextents - 1) * sizeof(xfs_extent_t);
efip->efi_format.efi_size = 1;
- log_vector->i_addr = (xfs_caddr_t)&(efip->efi_format);
+ log_vector->i_addr = &efip->efi_format;
log_vector->i_len = size;
log_vector->i_type = XLOG_REG_TYPE_EFI_FORMAT;
ASSERT(size >= sizeof(xfs_efi_log_format_t));
@@ -90,60 +92,33 @@ xfs_efi_item_format(xfs_efi_log_item_t *efip,
/*
* Pinning has no meaning for an efi item, so just return.
*/
-/*ARGSUSED*/
STATIC void
-xfs_efi_item_pin(xfs_efi_log_item_t *efip)
+xfs_efi_item_pin(
+ struct xfs_log_item *lip)
{
- return;
}
-
/*
* While EFIs cannot really be pinned, the unpin operation is the
* last place at which the EFI is manipulated during a transaction.
* Here we coordinate with xfs_efi_cancel() to determine who gets to
* free the EFI.
*/
-/*ARGSUSED*/
-STATIC void
-xfs_efi_item_unpin(xfs_efi_log_item_t *efip)
-{
- struct xfs_ail *ailp = efip->efi_item.li_ailp;
-
- spin_lock(&ailp->xa_lock);
- if (efip->efi_flags & XFS_EFI_CANCELED) {
- /* xfs_trans_ail_delete() drops the AIL lock. */
- xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
- xfs_efi_item_free(efip);
- } else {
- efip->efi_flags |= XFS_EFI_COMMITTED;
- spin_unlock(&ailp->xa_lock);
- }
-}
-
-/*
- * like unpin only we have to also clear the xaction descriptor
- * pointing the log item if we free the item. This routine duplicates
- * unpin because efi_flags is protected by the AIL lock. Freeing
- * the descriptor and then calling unpin would force us to drop the AIL
- * lock which would open up a race condition.
- */
STATIC void
-xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
+xfs_efi_item_unpin(
+ struct xfs_log_item *lip,
+ int remove)
{
- struct xfs_ail *ailp = efip->efi_item.li_ailp;
- xfs_log_item_desc_t *lidp;
+ struct xfs_efi_log_item *efip = EFI_ITEM(lip);
+ struct xfs_ail *ailp = lip->li_ailp;
spin_lock(&ailp->xa_lock);
if (efip->efi_flags & XFS_EFI_CANCELED) {
- /*
- * free the xaction descriptor pointing to this item
- */
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t *) efip);
- xfs_trans_free_item(tp, lidp);
+ if (remove)
+ xfs_trans_del_item(lip);
/* xfs_trans_ail_delete() drops the AIL lock. */
- xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
+ xfs_trans_ail_delete(ailp, lip);
xfs_efi_item_free(efip);
} else {
efip->efi_flags |= XFS_EFI_COMMITTED;
@@ -158,9 +133,9 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
* XFS_ITEM_PINNED so that the caller will eventually flush the log.
* This should help in getting the EFI out of the AIL.
*/
-/*ARGSUSED*/
STATIC uint
-xfs_efi_item_trylock(xfs_efi_log_item_t *efip)
+xfs_efi_item_trylock(
+ struct xfs_log_item *lip)
{
return XFS_ITEM_PINNED;
}
@@ -168,13 +143,12 @@ xfs_efi_item_trylock(xfs_efi_log_item_t *efip)
/*
* Efi items have no locking, so just return.
*/
-/*ARGSUSED*/
STATIC void
-xfs_efi_item_unlock(xfs_efi_log_item_t *efip)
+xfs_efi_item_unlock(
+ struct xfs_log_item *lip)
{
- if (efip->efi_item.li_flags & XFS_LI_ABORTED)
- xfs_efi_item_free(efip);
- return;
+ if (lip->li_flags & XFS_LI_ABORTED)
+ xfs_efi_item_free(EFI_ITEM(lip));
}
/*
@@ -183,9 +157,10 @@ xfs_efi_item_unlock(xfs_efi_log_item_t *efip)
* flag is not paid any attention here. Checking for that is delayed
* until the EFI is unpinned.
*/
-/*ARGSUSED*/
STATIC xfs_lsn_t
-xfs_efi_item_committed(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
+xfs_efi_item_committed(
+ struct xfs_log_item *lip,
+ xfs_lsn_t lsn)
{
return lsn;
}
@@ -195,11 +170,10 @@ xfs_efi_item_committed(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
* stuck waiting for all of its corresponding efd items to be
* committed to disk.
*/
-/*ARGSUSED*/
STATIC void
-xfs_efi_item_push(xfs_efi_log_item_t *efip)
+xfs_efi_item_push(
+ struct xfs_log_item *lip)
{
- return;
}
/*
@@ -209,61 +183,55 @@ xfs_efi_item_push(xfs_efi_log_item_t *efip)
* example, for inodes, the inode is locked throughout the extent freeing
* so the dependency should be recorded there.
*/
-/*ARGSUSED*/
STATIC void
-xfs_efi_item_committing(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
+xfs_efi_item_committing(
+ struct xfs_log_item *lip,
+ xfs_lsn_t lsn)
{
- return;
}
/*
* This is the ops vector shared by all efi log items.
*/
static struct xfs_item_ops xfs_efi_item_ops = {
- .iop_size = (uint(*)(xfs_log_item_t*))xfs_efi_item_size,
- .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
- xfs_efi_item_format,
- .iop_pin = (void(*)(xfs_log_item_t*))xfs_efi_item_pin,
- .iop_unpin = (void(*)(xfs_log_item_t*))xfs_efi_item_unpin,
- .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t *))
- xfs_efi_item_unpin_remove,
- .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_efi_item_trylock,
- .iop_unlock = (void(*)(xfs_log_item_t*))xfs_efi_item_unlock,
- .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_efi_item_committed,
- .iop_push = (void(*)(xfs_log_item_t*))xfs_efi_item_push,
- .iop_pushbuf = NULL,
- .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_efi_item_committing
+ .iop_size = xfs_efi_item_size,
+ .iop_format = xfs_efi_item_format,
+ .iop_pin = xfs_efi_item_pin,
+ .iop_unpin = xfs_efi_item_unpin,
+ .iop_trylock = xfs_efi_item_trylock,
+ .iop_unlock = xfs_efi_item_unlock,
+ .iop_committed = xfs_efi_item_committed,
+ .iop_push = xfs_efi_item_push,
+ .iop_committing = xfs_efi_item_committing
};
/*
* Allocate and initialize an efi item with the given number of extents.
*/
-xfs_efi_log_item_t *
-xfs_efi_init(xfs_mount_t *mp,
- uint nextents)
+struct xfs_efi_log_item *
+xfs_efi_init(
+ struct xfs_mount *mp,
+ uint nextents)
{
- xfs_efi_log_item_t *efip;
+ struct xfs_efi_log_item *efip;
uint size;
ASSERT(nextents > 0);
if (nextents > XFS_EFI_MAX_FAST_EXTENTS) {
size = (uint)(sizeof(xfs_efi_log_item_t) +
((nextents - 1) * sizeof(xfs_extent_t)));
- efip = (xfs_efi_log_item_t*)kmem_zalloc(size, KM_SLEEP);
+ efip = kmem_zalloc(size, KM_SLEEP);
} else {
- efip = (xfs_efi_log_item_t*)kmem_zone_zalloc(xfs_efi_zone,
- KM_SLEEP);
+ efip = kmem_zone_zalloc(xfs_efi_zone, KM_SLEEP);
}
xfs_log_item_init(mp, &efip->efi_item, XFS_LI_EFI, &xfs_efi_item_ops);
efip->efi_format.efi_nextents = nextents;
efip->efi_format.efi_id = (__psint_t)(void*)efip;
- return (efip);
+ return efip;
}
/*
@@ -276,7 +244,7 @@ xfs_efi_init(xfs_mount_t *mp,
int
xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
{
- xfs_efi_log_format_t *src_efi_fmt = (xfs_efi_log_format_t *)buf->i_addr;
+ xfs_efi_log_format_t *src_efi_fmt = buf->i_addr;
uint i;
uint len = sizeof(xfs_efi_log_format_t) +
(src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_t);
@@ -289,8 +257,7 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
memcpy((char *)dst_efi_fmt, (char*)src_efi_fmt, len);
return 0;
} else if (buf->i_len == len32) {
- xfs_efi_log_format_32_t *src_efi_fmt_32 =
- (xfs_efi_log_format_32_t *)buf->i_addr;
+ xfs_efi_log_format_32_t *src_efi_fmt_32 = buf->i_addr;
dst_efi_fmt->efi_type = src_efi_fmt_32->efi_type;
dst_efi_fmt->efi_size = src_efi_fmt_32->efi_size;
@@ -304,8 +271,7 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
}
return 0;
} else if (buf->i_len == len64) {
- xfs_efi_log_format_64_t *src_efi_fmt_64 =
- (xfs_efi_log_format_64_t *)buf->i_addr;
+ xfs_efi_log_format_64_t *src_efi_fmt_64 = buf->i_addr;
dst_efi_fmt->efi_type = src_efi_fmt_64->efi_type;
dst_efi_fmt->efi_size = src_efi_fmt_64->efi_size;
@@ -356,16 +322,18 @@ xfs_efi_release(xfs_efi_log_item_t *efip,
}
}
-STATIC void
-xfs_efd_item_free(xfs_efd_log_item_t *efdp)
+static inline struct xfs_efd_log_item *EFD_ITEM(struct xfs_log_item *lip)
{
- int nexts = efdp->efd_format.efd_nextents;
+ return container_of(lip, struct xfs_efd_log_item, efd_item);
+}
- if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
+STATIC void
+xfs_efd_item_free(struct xfs_efd_log_item *efdp)
+{
+ if (efdp->efd_format.efd_nextents > XFS_EFD_MAX_FAST_EXTENTS)
kmem_free(efdp);
- } else {
+ else
kmem_zone_free(xfs_efd_zone, efdp);
- }
}
/*
@@ -373,9 +341,9 @@ xfs_efd_item_free(xfs_efd_log_item_t *efdp)
* We only need 1 iovec for an efd item. It just logs the efd_log_format
* structure.
*/
-/*ARGSUSED*/
STATIC uint
-xfs_efd_item_size(xfs_efd_log_item_t *efdp)
+xfs_efd_item_size(
+ struct xfs_log_item *lip)
{
return 1;
}
@@ -388,10 +356,12 @@ xfs_efd_item_size(xfs_efd_log_item_t *efdp)
* slots in the efd item have been filled.
*/
STATIC void
-xfs_efd_item_format(xfs_efd_log_item_t *efdp,
- xfs_log_iovec_t *log_vector)
+xfs_efd_item_format(
+ struct xfs_log_item *lip,
+ struct xfs_log_iovec *log_vector)
{
- uint size;
+ struct xfs_efd_log_item *efdp = EFD_ITEM(lip);
+ uint size;
ASSERT(efdp->efd_next_extent == efdp->efd_format.efd_nextents);
@@ -401,48 +371,38 @@ xfs_efd_item_format(xfs_efd_log_item_t *efdp,
size += (efdp->efd_format.efd_nextents - 1) * sizeof(xfs_extent_t);
efdp->efd_format.efd_size = 1;
- log_vector->i_addr = (xfs_caddr_t)&(efdp->efd_format);
+ log_vector->i_addr = &efdp->efd_format;
log_vector->i_len = size;
log_vector->i_type = XLOG_REG_TYPE_EFD_FORMAT;
ASSERT(size >= sizeof(xfs_efd_log_format_t));
}
-
/*
* Pinning has no meaning for an efd item, so just return.
*/
-/*ARGSUSED*/
STATIC void
-xfs_efd_item_pin(xfs_efd_log_item_t *efdp)
+xfs_efd_item_pin(
+ struct xfs_log_item *lip)
{
- return;
}
-
/*
* Since pinning has no meaning for an efd item, unpinning does
* not either.
*/
-/*ARGSUSED*/
-STATIC void
-xfs_efd_item_unpin(xfs_efd_log_item_t *efdp)
-{
- return;
-}
-
-/*ARGSUSED*/
STATIC void
-xfs_efd_item_unpin_remove(xfs_efd_log_item_t *efdp, xfs_trans_t *tp)
+xfs_efd_item_unpin(
+ struct xfs_log_item *lip,
+ int remove)
{
- return;
}
/*
* Efd items have no locking, so just return success.
*/
-/*ARGSUSED*/
STATIC uint
-xfs_efd_item_trylock(xfs_efd_log_item_t *efdp)
+xfs_efd_item_trylock(
+ struct xfs_log_item *lip)
{
return XFS_ITEM_LOCKED;
}
@@ -451,13 +411,12 @@ xfs_efd_item_trylock(xfs_efd_log_item_t *efdp)
* Efd items have no locking or pushing, so return failure
* so that the caller doesn't bother with us.
*/
-/*ARGSUSED*/
STATIC void
-xfs_efd_item_unlock(xfs_efd_log_item_t *efdp)
+xfs_efd_item_unlock(
+ struct xfs_log_item *lip)
{
- if (efdp->efd_item.li_flags & XFS_LI_ABORTED)
- xfs_efd_item_free(efdp);
- return;
+ if (lip->li_flags & XFS_LI_ABORTED)
+ xfs_efd_item_free(EFD_ITEM(lip));
}
/*
@@ -467,15 +426,18 @@ xfs_efd_item_unlock(xfs_efd_log_item_t *efdp)
* return -1 to keep the transaction code from further referencing
* this item.
*/
-/*ARGSUSED*/
STATIC xfs_lsn_t
-xfs_efd_item_committed(xfs_efd_log_item_t *efdp, xfs_lsn_t lsn)
+xfs_efd_item_committed(
+ struct xfs_log_item *lip,
+ xfs_lsn_t lsn)
{
+ struct xfs_efd_log_item *efdp = EFD_ITEM(lip);
+
/*
* If we got a log I/O error, it's always the case that the LR with the
* EFI got unpinned and freed before the EFD got aborted.
*/
- if ((efdp->efd_item.li_flags & XFS_LI_ABORTED) == 0)
+ if (!(lip->li_flags & XFS_LI_ABORTED))
xfs_efi_release(efdp->efd_efip, efdp->efd_format.efd_nextents);
xfs_efd_item_free(efdp);
@@ -486,11 +448,10 @@ xfs_efd_item_committed(xfs_efd_log_item_t *efdp, xfs_lsn_t lsn)
* There isn't much you can do to push on an efd item. It is simply
* stuck waiting for the log to be flushed to disk.
*/
-/*ARGSUSED*/
STATIC void
-xfs_efd_item_push(xfs_efd_log_item_t *efdp)
+xfs_efd_item_push(
+ struct xfs_log_item *lip)
{
- return;
}
/*
@@ -500,55 +461,48 @@ xfs_efd_item_push(xfs_efd_log_item_t *efdp)
* example, for inodes, the inode is locked throughout the extent freeing
* so the dependency should be recorded there.
*/
-/*ARGSUSED*/
STATIC void
-xfs_efd_item_committing(xfs_efd_log_item_t *efip, xfs_lsn_t lsn)
+xfs_efd_item_committing(
+ struct xfs_log_item *lip,
+ xfs_lsn_t lsn)
{
- return;
}
/*
* This is the ops vector shared by all efd log items.
*/
static struct xfs_item_ops xfs_efd_item_ops = {
- .iop_size = (uint(*)(xfs_log_item_t*))xfs_efd_item_size,
- .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
- xfs_efd_item_format,
- .iop_pin = (void(*)(xfs_log_item_t*))xfs_efd_item_pin,
- .iop_unpin = (void(*)(xfs_log_item_t*))xfs_efd_item_unpin,
- .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
- xfs_efd_item_unpin_remove,
- .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_efd_item_trylock,
- .iop_unlock = (void(*)(xfs_log_item_t*))xfs_efd_item_unlock,
- .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_efd_item_committed,
- .iop_push = (void(*)(xfs_log_item_t*))xfs_efd_item_push,
- .iop_pushbuf = NULL,
- .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_efd_item_committing
+ .iop_size = xfs_efd_item_size,
+ .iop_format = xfs_efd_item_format,
+ .iop_pin = xfs_efd_item_pin,
+ .iop_unpin = xfs_efd_item_unpin,
+ .iop_trylock = xfs_efd_item_trylock,
+ .iop_unlock = xfs_efd_item_unlock,
+ .iop_committed = xfs_efd_item_committed,
+ .iop_push = xfs_efd_item_push,
+ .iop_committing = xfs_efd_item_committing
};
-
/*
* Allocate and initialize an efd item with the given number of extents.
*/
-xfs_efd_log_item_t *
-xfs_efd_init(xfs_mount_t *mp,
- xfs_efi_log_item_t *efip,
- uint nextents)
+struct xfs_efd_log_item *
+xfs_efd_init(
+ struct xfs_mount *mp,
+ struct xfs_efi_log_item *efip,
+ uint nextents)
{
- xfs_efd_log_item_t *efdp;
+ struct xfs_efd_log_item *efdp;
uint size;
ASSERT(nextents > 0);
if (nextents > XFS_EFD_MAX_FAST_EXTENTS) {
size = (uint)(sizeof(xfs_efd_log_item_t) +
((nextents - 1) * sizeof(xfs_extent_t)));
- efdp = (xfs_efd_log_item_t*)kmem_zalloc(size, KM_SLEEP);
+ efdp = kmem_zalloc(size, KM_SLEEP);
} else {
- efdp = (xfs_efd_log_item_t*)kmem_zone_zalloc(xfs_efd_zone,
- KM_SLEEP);
+ efdp = kmem_zone_zalloc(xfs_efd_zone, KM_SLEEP);
}
xfs_log_item_init(mp, &efdp->efd_item, XFS_LI_EFD, &xfs_efd_item_ops);
@@ -556,5 +510,5 @@ xfs_efd_init(xfs_mount_t *mp,
efdp->efd_format.efd_nextents = nextents;
efdp->efd_format.efd_efi_id = efip->efi_format.efi_id;
- return (efdp);
+ return efdp;
}
diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index 390850e..9b715dc 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -18,13 +18,9 @@
#include "xfs.h"
#include "xfs_bmap_btree.h"
#include "xfs_inum.h"
-#include "xfs_dir2.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_ag.h"
-#include "xfs_dmapi.h"
#include "xfs_log.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
@@ -127,6 +123,82 @@ typedef struct fstrm_item
xfs_inode_t *pip; /* Parent directory inode pointer. */
} fstrm_item_t;
+/*
+ * Allocation group filestream associations are tracked with per-ag atomic
+ * counters. These counters allow _xfs_filestream_pick_ag() to tell whether a
+ * particular AG already has active filestreams associated with it. The mount
+ * point's m_peraglock is used to protect these counters from per-ag array
+ * re-allocation during a growfs operation. When xfs_growfs_data_private() is
+ * about to reallocate the array, it calls xfs_filestream_flush() with the
+ * m_peraglock held in write mode.
+ *
+ * Since xfs_mru_cache_flush() guarantees that all the free functions for all
+ * the cache elements have finished executing before it returns, it's safe for
+ * the free functions to use the atomic counters without m_peraglock protection.
+ * This allows the implementation of xfs_fstrm_free_func() to be agnostic about
+ * whether it was called with the m_peraglock held in read mode, write mode or
+ * not held at all. The race condition this addresses is the following:
+ *
+ * - The work queue scheduler fires and pulls a filestream directory cache
+ * element off the LRU end of the cache for deletion, then gets pre-empted.
+ * - A growfs operation grabs the m_peraglock in write mode, flushes all the
+ * remaining items from the cache and reallocates the mount point's per-ag
+ * array, resetting all the counters to zero.
+ * - The work queue thread resumes and calls the free function for the element
+ * it started cleaning up earlier. In the process it decrements the
+ * filestreams counter for an AG that now has no references.
+ *
+ * With a shrinkfs feature, the above scenario could panic the system.
+ *
+ * All other uses of the following macros should be protected by either the
+ * m_peraglock held in read mode, or the cache's internal locking exposed by the
+ * interval between a call to xfs_mru_cache_lookup() and a call to
+ * xfs_mru_cache_done(). In addition, the m_peraglock must be held in read mode
+ * when new elements are added to the cache.
+ *
+ * Combined, these locking rules ensure that no associations will ever exist in
+ * the cache that reference per-ag array elements that have since been
+ * reallocated.
+ */
+static int
+xfs_filestream_peek_ag(
+ xfs_mount_t *mp,
+ xfs_agnumber_t agno)
+{
+ struct xfs_perag *pag;
+ int ret;
+
+ pag = xfs_perag_get(mp, agno);
+ ret = atomic_read(&pag->pagf_fstrms);
+ xfs_perag_put(pag);
+ return ret;
+}
+
+static int
+xfs_filestream_get_ag(
+ xfs_mount_t *mp,
+ xfs_agnumber_t agno)
+{
+ struct xfs_perag *pag;
+ int ret;
+
+ pag = xfs_perag_get(mp, agno);
+ ret = atomic_inc_return(&pag->pagf_fstrms);
+ xfs_perag_put(pag);
+ return ret;
+}
+
+static void
+xfs_filestream_put_ag(
+ xfs_mount_t *mp,
+ xfs_agnumber_t agno)
+{
+ struct xfs_perag *pag;
+
+ pag = xfs_perag_get(mp, agno);
+ atomic_dec(&pag->pagf_fstrms);
+ xfs_perag_put(pag);
+}
/*
* Scan the AGs starting at startag looking for an AG that isn't in use and has
@@ -355,16 +427,14 @@ xfs_fstrm_free_func(
{
fstrm_item_t *item = (fstrm_item_t *)data;
xfs_inode_t *ip = item->ip;
- int ref;
ASSERT(ip->i_ino == ino);
xfs_iflags_clear(ip, XFS_IFILESTREAM);
/* Drop the reference taken on the AG when the item was added. */
- ref = xfs_filestream_put_ag(ip->i_mount, item->ag);
+ xfs_filestream_put_ag(ip->i_mount, item->ag);
- ASSERT(ref >= 0);
TRACE_FREE(ip->i_mount, ip, item->pip, item->ag,
xfs_filestream_peek_ag(ip->i_mount, item->ag));
diff --git a/fs/xfs/xfs_filestream.h b/fs/xfs/xfs_filestream.h
index 260f757..09dd9af 100644
--- a/fs/xfs/xfs_filestream.h
+++ b/fs/xfs/xfs_filestream.h
@@ -42,88 +42,6 @@ extern ktrace_t *xfs_filestreams_trace_buf;
#endif
-/*
- * Allocation group filestream associations are tracked with per-ag atomic
- * counters. These counters allow _xfs_filestream_pick_ag() to tell whether a
- * particular AG already has active filestreams associated with it. The mount
- * point's m_peraglock is used to protect these counters from per-ag array
- * re-allocation during a growfs operation. When xfs_growfs_data_private() is
- * about to reallocate the array, it calls xfs_filestream_flush() with the
- * m_peraglock held in write mode.
- *
- * Since xfs_mru_cache_flush() guarantees that all the free functions for all
- * the cache elements have finished executing before it returns, it's safe for
- * the free functions to use the atomic counters without m_peraglock protection.
- * This allows the implementation of xfs_fstrm_free_func() to be agnostic about
- * whether it was called with the m_peraglock held in read mode, write mode or
- * not held at all. The race condition this addresses is the following:
- *
- * - The work queue scheduler fires and pulls a filestream directory cache
- * element off the LRU end of the cache for deletion, then gets pre-empted.
- * - A growfs operation grabs the m_peraglock in write mode, flushes all the
- * remaining items from the cache and reallocates the mount point's per-ag
- * array, resetting all the counters to zero.
- * - The work queue thread resumes and calls the free function for the element
- * it started cleaning up earlier. In the process it decrements the
- * filestreams counter for an AG that now has no references.
- *
- * With a shrinkfs feature, the above scenario could panic the system.
- *
- * All other uses of the following macros should be protected by either the
- * m_peraglock held in read mode, or the cache's internal locking exposed by the
- * interval between a call to xfs_mru_cache_lookup() and a call to
- * xfs_mru_cache_done(). In addition, the m_peraglock must be held in read mode
- * when new elements are added to the cache.
- *
- * Combined, these locking rules ensure that no associations will ever exist in
- * the cache that reference per-ag array elements that have since been
- * reallocated.
- */
-/*
- * xfs_filestream_peek_ag is only used in tracing code
- */
-static inline int
-xfs_filestream_peek_ag(
- xfs_mount_t *mp,
- xfs_agnumber_t agno)
-{
- struct xfs_perag *pag;
- int ret;
-
- pag = xfs_perag_get(mp, agno);
- ret = atomic_read(&pag->pagf_fstrms);
- xfs_perag_put(pag);
- return ret;
-}
-
-static inline int
-xfs_filestream_get_ag(
- xfs_mount_t *mp,
- xfs_agnumber_t agno)
-{
- struct xfs_perag *pag;
- int ret;
-
- pag = xfs_perag_get(mp, agno);
- ret = atomic_inc_return(&pag->pagf_fstrms);
- xfs_perag_put(pag);
- return ret;
-}
-
-static inline int
-xfs_filestream_put_ag(
- xfs_mount_t *mp,
- xfs_agnumber_t agno)
-{
- struct xfs_perag *pag;
- int ret;
-
- pag = xfs_perag_get(mp, agno);
- ret = atomic_dec_return(&pag->pagf_fstrms);
- xfs_perag_put(pag);
- return ret;
-}
-
/* allocation selection flags */
typedef enum xfs_fstrm_alloc {
XFS_PICK_USERDATA = 1,
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 37a6f62..dbca5f5 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -24,14 +24,10 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
@@ -626,8 +622,7 @@ xfs_fs_log_dummy(
ip = mp->m_rootip;
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
xfs_trans_set_sync(tp);
error = xfs_trans_commit(tp, 0);
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index c7142a0..abf80ae 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -24,14 +24,10 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index c282a9a..d352862 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -24,14 +24,10 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 8f8b91b..b1ecc6f 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -25,14 +25,10 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
@@ -95,7 +91,7 @@ xfs_inode_alloc(
return ip;
}
-STATIC void
+void
xfs_inode_free(
struct xfs_inode *ip)
{
@@ -212,7 +208,7 @@ xfs_iget_cache_hit(
ip->i_flags &= ~XFS_INEW;
ip->i_flags |= XFS_IRECLAIMABLE;
__xfs_inode_set_reclaim_tag(pag, ip);
- trace_xfs_iget_reclaim(ip);
+ trace_xfs_iget_reclaim_fail(ip);
goto out_error;
}
@@ -227,6 +223,7 @@ xfs_iget_cache_hit(
} else {
/* If the VFS inode is being torn down, pause and try again. */
if (!igrab(inode)) {
+ trace_xfs_iget_skip(ip);
error = EAGAIN;
goto out_error;
}
@@ -234,6 +231,7 @@ xfs_iget_cache_hit(
/* We've got a live one. */
spin_unlock(&ip->i_flags_lock);
read_unlock(&pag->pag_ici_lock);
+ trace_xfs_iget_hit(ip);
}
if (lock_flags != 0)
@@ -242,7 +240,6 @@ xfs_iget_cache_hit(
xfs_iflags_clear(ip, XFS_ISTALE);
XFS_STATS_INC(xs_ig_found);
- trace_xfs_iget_found(ip);
return 0;
out_error:
@@ -264,7 +261,6 @@ xfs_iget_cache_miss(
{
struct xfs_inode *ip;
int error;
- unsigned long first_index, mask;
xfs_agino_t agino = XFS_INO_TO_AGINO(mp, ino);
ip = xfs_inode_alloc(mp, ino);
@@ -275,7 +271,7 @@ xfs_iget_cache_miss(
if (error)
goto out_destroy;
- xfs_itrace_entry(ip);
+ trace_xfs_iget_miss(ip);
if ((ip->i_d.di_mode == 0) && !(flags & XFS_IGET_CREATE)) {
error = ENOENT;
@@ -301,8 +297,6 @@ xfs_iget_cache_miss(
BUG();
}
- mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1);
- first_index = agino & mask;
write_lock(&pag->pag_ici_lock);
/* insert the new inode */
@@ -321,7 +315,6 @@ xfs_iget_cache_miss(
write_unlock(&pag->pag_ici_lock);
radix_tree_preload_end();
- trace_xfs_iget_alloc(ip);
*ipp = ip;
return 0;
@@ -422,97 +415,6 @@ out_error_or_again:
}
/*
- * Decrement reference count of an inode structure and unlock it.
- *
- * ip -- the inode being released
- * lock_flags -- this parameter indicates the inode's locks to be
- * to be released. See the comment on xfs_iunlock() for a list
- * of valid values.
- */
-void
-xfs_iput(xfs_inode_t *ip,
- uint lock_flags)
-{
- xfs_itrace_entry(ip);
- xfs_iunlock(ip, lock_flags);
- IRELE(ip);
-}
-
-/*
- * Special iput for brand-new inodes that are still locked
- */
-void
-xfs_iput_new(
- xfs_inode_t *ip,
- uint lock_flags)
-{
- struct inode *inode = VFS_I(ip);
-
- xfs_itrace_entry(ip);
-
- if ((ip->i_d.di_mode == 0)) {
- ASSERT(!xfs_iflags_test(ip, XFS_IRECLAIMABLE));
- make_bad_inode(inode);
- }
- if (inode->i_state & I_NEW)
- unlock_new_inode(inode);
- if (lock_flags)
- xfs_iunlock(ip, lock_flags);
- IRELE(ip);
-}
-
-/*
- * This is called free all the memory associated with an inode.
- * It must free the inode itself and any buffers allocated for
- * if_extents/if_data and if_broot. It must also free the lock
- * associated with the inode.
- *
- * Note: because we don't initialise everything on reallocation out
- * of the zone, we must ensure we nullify everything correctly before
- * freeing the structure.
- */
-void
-xfs_ireclaim(
- struct xfs_inode *ip)
-{
- struct xfs_mount *mp = ip->i_mount;
- struct xfs_perag *pag;
- xfs_agino_t agino = XFS_INO_TO_AGINO(mp, ip->i_ino);
-
- XFS_STATS_INC(xs_ig_reclaims);
-
- /*
- * Remove the inode from the per-AG radix tree.
- *
- * Because radix_tree_delete won't complain even if the item was never
- * added to the tree assert that it's been there before to catch
- * problems with the inode life time early on.
- */
- pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, ip->i_ino));
- write_lock(&pag->pag_ici_lock);
- if (!radix_tree_delete(&pag->pag_ici_root, agino))
- ASSERT(0);
- write_unlock(&pag->pag_ici_lock);
- xfs_perag_put(pag);
-
- /*
- * Here we do an (almost) spurious inode lock in order to coordinate
- * with inode cache radix tree lookups. This is because the lookup
- * can reference the inodes in the cache without taking references.
- *
- * We make that OK here by ensuring that we wait until the inode is
- * unlocked after the lookup before we go ahead and free it. We get
- * both the ilock and the iolock because the code may need to drop the
- * ilock one but will still hold the iolock.
- */
- xfs_ilock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
- xfs_qm_dqdetach(ip);
- xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-
- xfs_inode_free(ip);
-}
-
-/*
* This is a wrapper routine around the xfs_ilock() routine
* used to centralize some grungy code. It is used in places
* that wish to lock the inode solely for reading the extents.
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index b76a829..68415cb 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -27,13 +27,10 @@
#include "xfs_trans_priv.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
@@ -44,7 +41,6 @@
#include "xfs_alloc.h"
#include "xfs_ialloc.h"
#include "xfs_bmap.h"
-#include "xfs_rw.h"
#include "xfs_error.h"
#include "xfs_utils.h"
#include "xfs_quota.h"
@@ -426,7 +422,7 @@ xfs_iformat(
if (!XFS_DFORK_Q(dip))
return 0;
ASSERT(ip->i_afp == NULL);
- ip->i_afp = kmem_zone_zalloc(xfs_ifork_zone, KM_SLEEP);
+ ip->i_afp = kmem_zone_zalloc(xfs_ifork_zone, KM_SLEEP | KM_NOFS);
ip->i_afp->if_ext_max =
XFS_IFORK_ASIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
switch (dip->di_aformat) {
@@ -509,7 +505,7 @@ xfs_iformat_local(
ifp->if_u1.if_data = ifp->if_u2.if_inline_data;
else {
real_size = roundup(size, 4);
- ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP);
+ ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP | KM_NOFS);
}
ifp->if_bytes = size;
ifp->if_real_bytes = real_size;
@@ -636,7 +632,7 @@ xfs_iformat_btree(
}
ifp->if_broot_bytes = size;
- ifp->if_broot = kmem_alloc(size, KM_SLEEP);
+ ifp->if_broot = kmem_alloc(size, KM_SLEEP | KM_NOFS);
ASSERT(ifp->if_broot != NULL);
/*
* Copy and convert from the on-disk structure
@@ -922,7 +918,6 @@ xfs_iread_extents(
int error;
xfs_ifork_t *ifp;
xfs_extnum_t nextents;
- size_t size;
if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) {
XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW,
@@ -930,7 +925,6 @@ xfs_iread_extents(
return XFS_ERROR(EFSCORRUPTED);
}
nextents = XFS_IFORK_NEXTENTS(ip, whichfork);
- size = nextents * sizeof(xfs_bmbt_rec_t);
ifp = XFS_IFORK_PTR(ip, whichfork);
/*
@@ -1226,7 +1220,7 @@ xfs_isize_check(
(xfs_ufsize_t)XFS_MAXIOFFSET(mp)) -
map_first),
XFS_BMAPI_ENTIRE, NULL, 0, imaps, &nimaps,
- NULL, NULL))
+ NULL))
return;
ASSERT(nimaps == 1);
ASSERT(imaps[0].br_startblock == HOLESTARTBLOCK);
@@ -1460,7 +1454,7 @@ xfs_itruncate_finish(
ASSERT((*tp)->t_flags & XFS_TRANS_PERM_LOG_RES);
ASSERT(ip->i_transp == *tp);
ASSERT(ip->i_itemp != NULL);
- ASSERT(ip->i_itemp->ili_flags & XFS_ILI_HOLD);
+ ASSERT(ip->i_itemp->ili_lock_flags == 0);
ntp = *tp;
@@ -1589,11 +1583,10 @@ xfs_itruncate_finish(
xfs_bmap_init(&free_list, &first_block);
error = xfs_bunmapi(ntp, ip,
first_unmap_block, unmap_len,
- xfs_bmapi_aflag(fork) |
- (sync ? 0 : XFS_BMAPI_ASYNC),
+ xfs_bmapi_aflag(fork),
XFS_ITRUNC_MAX_EXTENTS,
&first_block, &free_list,
- NULL, &done);
+ &done);
if (error) {
/*
* If the bunmapi call encounters an error,
@@ -1612,12 +1605,8 @@ xfs_itruncate_finish(
*/
error = xfs_bmap_finish(tp, &free_list, &committed);
ntp = *tp;
- if (committed) {
- /* link the inode into the next xact in the chain */
- xfs_trans_ijoin(ntp, ip,
- XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
- xfs_trans_ihold(ntp, ip);
- }
+ if (committed)
+ xfs_trans_ijoin(ntp, ip);
if (error) {
/*
@@ -1646,9 +1635,7 @@ xfs_itruncate_finish(
error = xfs_trans_commit(*tp, 0);
*tp = ntp;
- /* link the inode into the next transaction in the chain */
- xfs_trans_ijoin(ntp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
- xfs_trans_ihold(ntp, ip);
+ xfs_trans_ijoin(ntp, ip);
if (error)
return error;
@@ -1985,7 +1972,7 @@ xfs_ifree_cluster(
if (lip->li_type == XFS_LI_INODE) {
iip = (xfs_inode_log_item_t *)lip;
ASSERT(iip->ili_logged == 1);
- lip->li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*)) xfs_istale_done;
+ lip->li_cb = xfs_istale_done;
xfs_trans_ail_copy_lsn(mp->m_ail,
&iip->ili_flush_lsn,
&iip->ili_item.li_lsn);
@@ -2055,9 +2042,8 @@ xfs_ifree_cluster(
xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn,
&iip->ili_item.li_lsn);
- xfs_buf_attach_iodone(bp,
- (void(*)(xfs_buf_t*,xfs_log_item_t*))
- xfs_istale_done, (xfs_log_item_t *)iip);
+ xfs_buf_attach_iodone(bp, xfs_istale_done,
+ &iip->ili_item);
if (ip != free_ip)
xfs_iunlock(ip, XFS_ILOCK_EXCL);
@@ -2203,7 +2189,7 @@ xfs_iroot_realloc(
*/
if (ifp->if_broot_bytes == 0) {
new_size = (size_t)XFS_BMAP_BROOT_SPACE_CALC(rec_diff);
- ifp->if_broot = kmem_alloc(new_size, KM_SLEEP);
+ ifp->if_broot = kmem_alloc(new_size, KM_SLEEP | KM_NOFS);
ifp->if_broot_bytes = (int)new_size;
return;
}
@@ -2219,7 +2205,7 @@ xfs_iroot_realloc(
new_size = (size_t)XFS_BMAP_BROOT_SPACE_CALC(new_max);
ifp->if_broot = kmem_realloc(ifp->if_broot, new_size,
(size_t)XFS_BMAP_BROOT_SPACE_CALC(cur_max), /* old size */
- KM_SLEEP);
+ KM_SLEEP | KM_NOFS);
op = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
ifp->if_broot_bytes);
np = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
@@ -2245,7 +2231,7 @@ xfs_iroot_realloc(
else
new_size = 0;
if (new_size > 0) {
- new_broot = kmem_alloc(new_size, KM_SLEEP);
+ new_broot = kmem_alloc(new_size, KM_SLEEP | KM_NOFS);
/*
* First copy over the btree block header.
*/
@@ -2349,7 +2335,8 @@ xfs_idata_realloc(
real_size = roundup(new_size, 4);
if (ifp->if_u1.if_data == NULL) {
ASSERT(ifp->if_real_bytes == 0);
- ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP);
+ ifp->if_u1.if_data = kmem_alloc(real_size,
+ KM_SLEEP | KM_NOFS);
} else if (ifp->if_u1.if_data != ifp->if_u2.if_inline_data) {
/*
* Only do the realloc if the underlying size
@@ -2360,11 +2347,12 @@ xfs_idata_realloc(
kmem_realloc(ifp->if_u1.if_data,
real_size,
ifp->if_real_bytes,
- KM_SLEEP);
+ KM_SLEEP | KM_NOFS);
}
} else {
ASSERT(ifp->if_real_bytes == 0);
- ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP);
+ ifp->if_u1.if_data = kmem_alloc(real_size,
+ KM_SLEEP | KM_NOFS);
memcpy(ifp->if_u1.if_data, ifp->if_u2.if_inline_data,
ifp->if_bytes);
}
@@ -2731,7 +2719,6 @@ cluster_corrupt_out:
* mark it as stale and brelse.
*/
if (XFS_BUF_IODONE_FUNC(bp)) {
- XFS_BUF_CLR_BDSTRAT_FUNC(bp);
XFS_BUF_UNDONE(bp);
XFS_BUF_STALE(bp);
XFS_BUF_ERROR(bp,EIO);
@@ -3069,8 +3056,7 @@ xfs_iflush_int(
* and unlock the inode's flush lock when the inode is
* completely written to disk.
*/
- xfs_buf_attach_iodone(bp, (void(*)(xfs_buf_t*,xfs_log_item_t*))
- xfs_iflush_done, (xfs_log_item_t *)iip);
+ xfs_buf_attach_iodone(bp, xfs_iflush_done, &iip->ili_item);
ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
ASSERT(XFS_BUF_IODONE_FUNC(bp) != NULL);
@@ -3514,13 +3500,11 @@ xfs_iext_remove_indirect(
xfs_extnum_t ext_diff; /* extents to remove in current list */
xfs_extnum_t nex1; /* number of extents before idx */
xfs_extnum_t nex2; /* extents after idx + count */
- int nlists; /* entries in indirection array */
int page_idx = idx; /* index in target extent list */
ASSERT(ifp->if_flags & XFS_IFEXTIREC);
erp = xfs_iext_idx_to_irec(ifp, &page_idx, &erp_idx, 0);
ASSERT(erp != NULL);
- nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
nex1 = page_idx;
ext_cnt = count;
while (ext_cnt) {
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 78550df..0898c54 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -443,8 +443,6 @@ static inline void xfs_ifunlock(xfs_inode_t *ip)
*/
int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
uint, uint, xfs_inode_t **);
-void xfs_iput(xfs_inode_t *, uint);
-void xfs_iput_new(xfs_inode_t *, uint);
void xfs_ilock(xfs_inode_t *, uint);
int xfs_ilock_nowait(xfs_inode_t *, uint);
void xfs_iunlock(xfs_inode_t *, uint);
@@ -452,7 +450,7 @@ void xfs_ilock_demote(xfs_inode_t *, uint);
int xfs_isilocked(xfs_inode_t *, uint);
uint xfs_ilock_map_shared(xfs_inode_t *);
void xfs_iunlock_map_shared(xfs_inode_t *, uint);
-void xfs_ireclaim(xfs_inode_t *);
+void xfs_inode_free(struct xfs_inode *ip);
/*
* xfs_inode.c prototypes.
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index cf8249a..fe00777 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -22,30 +22,26 @@
#include "xfs_log.h"
#include "xfs_inum.h"
#include "xfs_trans.h"
-#include "xfs_buf_item.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_trans_priv.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_rw.h"
#include "xfs_error.h"
#include "xfs_trace.h"
kmem_zone_t *xfs_ili_zone; /* inode log item zone */
+static inline struct xfs_inode_log_item *INODE_ITEM(struct xfs_log_item *lip)
+{
+ return container_of(lip, struct xfs_inode_log_item, ili_item);
+}
+
+
/*
* This returns the number of iovecs needed to log the given inode item.
*
@@ -55,13 +51,11 @@ kmem_zone_t *xfs_ili_zone; /* inode log item zone */
*/
STATIC uint
xfs_inode_item_size(
- xfs_inode_log_item_t *iip)
+ struct xfs_log_item *lip)
{
- uint nvecs;
- xfs_inode_t *ip;
-
- ip = iip->ili_inode;
- nvecs = 2;
+ struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+ struct xfs_inode *ip = iip->ili_inode;
+ uint nvecs = 2;
/*
* Only log the data/extents/b-tree root if there is something
@@ -212,21 +206,17 @@ xfs_inode_item_size(
*/
STATIC void
xfs_inode_item_format(
- xfs_inode_log_item_t *iip,
- xfs_log_iovec_t *log_vector)
+ struct xfs_log_item *lip,
+ struct xfs_log_iovec *vecp)
{
+ struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+ struct xfs_inode *ip = iip->ili_inode;
uint nvecs;
- xfs_log_iovec_t *vecp;
- xfs_inode_t *ip;
size_t data_bytes;
xfs_bmbt_rec_t *ext_buffer;
- int nrecs;
xfs_mount_t *mp;
- ip = iip->ili_inode;
- vecp = log_vector;
-
- vecp->i_addr = (xfs_caddr_t)&iip->ili_format;
+ vecp->i_addr = &iip->ili_format;
vecp->i_len = sizeof(xfs_inode_log_format_t);
vecp->i_type = XLOG_REG_TYPE_IFORMAT;
vecp++;
@@ -277,7 +267,7 @@ xfs_inode_item_format(
*/
xfs_synchronize_times(ip);
- vecp->i_addr = (xfs_caddr_t)&ip->i_d;
+ vecp->i_addr = &ip->i_d;
vecp->i_len = sizeof(struct xfs_icdinode);
vecp->i_type = XLOG_REG_TYPE_ICORE;
vecp++;
@@ -323,18 +313,17 @@ xfs_inode_item_format(
ASSERT(ip->i_df.if_u1.if_extents != NULL);
ASSERT(ip->i_d.di_nextents > 0);
ASSERT(iip->ili_extents_buf == NULL);
- nrecs = ip->i_df.if_bytes /
- (uint)sizeof(xfs_bmbt_rec_t);
- ASSERT(nrecs > 0);
+ ASSERT((ip->i_df.if_bytes /
+ (uint)sizeof(xfs_bmbt_rec_t)) > 0);
#ifdef XFS_NATIVE_HOST
- if (nrecs == ip->i_d.di_nextents) {
+ if (ip->i_d.di_nextents == ip->i_df.if_bytes /
+ (uint)sizeof(xfs_bmbt_rec_t)) {
/*
* There are no delayed allocation
* extents, so just point to the
* real extents array.
*/
- vecp->i_addr =
- (char *)(ip->i_df.if_u1.if_extents);
+ vecp->i_addr = ip->i_df.if_u1.if_extents;
vecp->i_len = ip->i_df.if_bytes;
vecp->i_type = XLOG_REG_TYPE_IEXT;
} else
@@ -352,7 +341,7 @@ xfs_inode_item_format(
ext_buffer = kmem_alloc(ip->i_df.if_bytes,
KM_SLEEP);
iip->ili_extents_buf = ext_buffer;
- vecp->i_addr = (xfs_caddr_t)ext_buffer;
+ vecp->i_addr = ext_buffer;
vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
XFS_DATA_FORK);
vecp->i_type = XLOG_REG_TYPE_IEXT;
@@ -371,7 +360,7 @@ xfs_inode_item_format(
if (iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) {
ASSERT(ip->i_df.if_broot_bytes > 0);
ASSERT(ip->i_df.if_broot != NULL);
- vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot;
+ vecp->i_addr = ip->i_df.if_broot;
vecp->i_len = ip->i_df.if_broot_bytes;
vecp->i_type = XLOG_REG_TYPE_IBROOT;
vecp++;
@@ -389,7 +378,7 @@ xfs_inode_item_format(
ASSERT(ip->i_df.if_u1.if_data != NULL);
ASSERT(ip->i_d.di_size > 0);
- vecp->i_addr = (xfs_caddr_t)ip->i_df.if_u1.if_data;
+ vecp->i_addr = ip->i_df.if_u1.if_data;
/*
* Round i_bytes up to a word boundary.
* The underlying memory is guaranteed to
@@ -437,7 +426,7 @@ xfs_inode_item_format(
* Assert that no attribute-related log flags are set.
*/
if (!XFS_IFORK_Q(ip)) {
- ASSERT(nvecs == iip->ili_item.li_desc->lid_size);
+ ASSERT(nvecs == lip->li_desc->lid_size);
iip->ili_format.ilf_size = nvecs;
ASSERT(!(iip->ili_format.ilf_fields &
(XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT)));
@@ -449,21 +438,21 @@ xfs_inode_item_format(
ASSERT(!(iip->ili_format.ilf_fields &
(XFS_ILOG_ADATA | XFS_ILOG_ABROOT)));
if (iip->ili_format.ilf_fields & XFS_ILOG_AEXT) {
- ASSERT(ip->i_afp->if_bytes > 0);
- ASSERT(ip->i_afp->if_u1.if_extents != NULL);
- ASSERT(ip->i_d.di_anextents > 0);
#ifdef DEBUG
- nrecs = ip->i_afp->if_bytes /
+ int nrecs = ip->i_afp->if_bytes /
(uint)sizeof(xfs_bmbt_rec_t);
-#endif
ASSERT(nrecs > 0);
ASSERT(nrecs == ip->i_d.di_anextents);
+ ASSERT(ip->i_afp->if_bytes > 0);
+ ASSERT(ip->i_afp->if_u1.if_extents != NULL);
+ ASSERT(ip->i_d.di_anextents > 0);
+#endif
#ifdef XFS_NATIVE_HOST
/*
* There are not delayed allocation extents
* for attributes, so just point at the array.
*/
- vecp->i_addr = (char *)(ip->i_afp->if_u1.if_extents);
+ vecp->i_addr = ip->i_afp->if_u1.if_extents;
vecp->i_len = ip->i_afp->if_bytes;
#else
ASSERT(iip->ili_aextents_buf == NULL);
@@ -473,7 +462,7 @@ xfs_inode_item_format(
ext_buffer = kmem_alloc(ip->i_afp->if_bytes,
KM_SLEEP);
iip->ili_aextents_buf = ext_buffer;
- vecp->i_addr = (xfs_caddr_t)ext_buffer;
+ vecp->i_addr = ext_buffer;
vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
XFS_ATTR_FORK);
#endif
@@ -490,7 +479,7 @@ xfs_inode_item_format(
if (iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) {
ASSERT(ip->i_afp->if_broot_bytes > 0);
ASSERT(ip->i_afp->if_broot != NULL);
- vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot;
+ vecp->i_addr = ip->i_afp->if_broot;
vecp->i_len = ip->i_afp->if_broot_bytes;
vecp->i_type = XLOG_REG_TYPE_IATTR_BROOT;
vecp++;
@@ -506,7 +495,7 @@ xfs_inode_item_format(
ASSERT(ip->i_afp->if_bytes > 0);
ASSERT(ip->i_afp->if_u1.if_data != NULL);
- vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_u1.if_data;
+ vecp->i_addr = ip->i_afp->if_u1.if_data;
/*
* Round i_bytes up to a word boundary.
* The underlying memory is guaranteed to
@@ -528,7 +517,7 @@ xfs_inode_item_format(
break;
}
- ASSERT(nvecs == iip->ili_item.li_desc->lid_size);
+ ASSERT(nvecs == lip->li_desc->lid_size);
iip->ili_format.ilf_size = nvecs;
}
@@ -539,12 +528,14 @@ xfs_inode_item_format(
*/
STATIC void
xfs_inode_item_pin(
- xfs_inode_log_item_t *iip)
+ struct xfs_log_item *lip)
{
- ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL));
+ struct xfs_inode *ip = INODE_ITEM(lip)->ili_inode;
+
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
- trace_xfs_inode_pin(iip->ili_inode, _RET_IP_);
- atomic_inc(&iip->ili_inode->i_pincount);
+ trace_xfs_inode_pin(ip, _RET_IP_);
+ atomic_inc(&ip->i_pincount);
}
@@ -554,12 +545,12 @@ xfs_inode_item_pin(
*
* Also wake up anyone in xfs_iunpin_wait() if the count goes to 0.
*/
-/* ARGSUSED */
STATIC void
xfs_inode_item_unpin(
- xfs_inode_log_item_t *iip)
+ struct xfs_log_item *lip,
+ int remove)
{
- struct xfs_inode *ip = iip->ili_inode;
+ struct xfs_inode *ip = INODE_ITEM(lip)->ili_inode;
trace_xfs_inode_unpin(ip, _RET_IP_);
ASSERT(atomic_read(&ip->i_pincount) > 0);
@@ -567,15 +558,6 @@ xfs_inode_item_unpin(
wake_up(&ip->i_ipin_wait);
}
-/* ARGSUSED */
-STATIC void
-xfs_inode_item_unpin_remove(
- xfs_inode_log_item_t *iip,
- xfs_trans_t *tp)
-{
- xfs_inode_item_unpin(iip);
-}
-
/*
* This is called to attempt to lock the inode associated with this
* inode log item, in preparation for the push routine which does the actual
@@ -591,19 +573,16 @@ xfs_inode_item_unpin_remove(
*/
STATIC uint
xfs_inode_item_trylock(
- xfs_inode_log_item_t *iip)
+ struct xfs_log_item *lip)
{
- register xfs_inode_t *ip;
-
- ip = iip->ili_inode;
+ struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+ struct xfs_inode *ip = iip->ili_inode;
- if (xfs_ipincount(ip) > 0) {
+ if (xfs_ipincount(ip) > 0)
return XFS_ITEM_PINNED;
- }
- if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) {
+ if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED))
return XFS_ITEM_LOCKED;
- }
if (!xfs_iflock_nowait(ip)) {
/*
@@ -629,7 +608,7 @@ xfs_inode_item_trylock(
if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
ASSERT(iip->ili_format.ilf_fields != 0);
ASSERT(iip->ili_logged == 0);
- ASSERT(iip->ili_item.li_flags & XFS_LI_IN_AIL);
+ ASSERT(lip->li_flags & XFS_LI_IN_AIL);
}
#endif
return XFS_ITEM_SUCCESS;
@@ -643,26 +622,18 @@ xfs_inode_item_trylock(
*/
STATIC void
xfs_inode_item_unlock(
- xfs_inode_log_item_t *iip)
+ struct xfs_log_item *lip)
{
- uint hold;
- uint iolocked;
- uint lock_flags;
- xfs_inode_t *ip;
+ struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+ struct xfs_inode *ip = iip->ili_inode;
+ unsigned short lock_flags;
- ASSERT(iip != NULL);
ASSERT(iip->ili_inode->i_itemp != NULL);
ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL));
- ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
- XFS_ILI_IOLOCKED_EXCL)) ||
- xfs_isilocked(iip->ili_inode, XFS_IOLOCK_EXCL));
- ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
- XFS_ILI_IOLOCKED_SHARED)) ||
- xfs_isilocked(iip->ili_inode, XFS_IOLOCK_SHARED));
+
/*
* Clear the transaction pointer in the inode.
*/
- ip = iip->ili_inode;
ip->i_transp = NULL;
/*
@@ -686,34 +657,11 @@ xfs_inode_item_unlock(
iip->ili_aextents_buf = NULL;
}
- /*
- * Figure out if we should unlock the inode or not.
- */
- hold = iip->ili_flags & XFS_ILI_HOLD;
-
- /*
- * Before clearing out the flags, remember whether we
- * are holding the inode's IO lock.
- */
- iolocked = iip->ili_flags & XFS_ILI_IOLOCKED_ANY;
-
- /*
- * Clear out the fields of the inode log item particular
- * to the current transaction.
- */
- iip->ili_flags = 0;
-
- /*
- * Unlock the inode if XFS_ILI_HOLD was not set.
- */
- if (!hold) {
- lock_flags = XFS_ILOCK_EXCL;
- if (iolocked & XFS_ILI_IOLOCKED_EXCL) {
- lock_flags |= XFS_IOLOCK_EXCL;
- } else if (iolocked & XFS_ILI_IOLOCKED_SHARED) {
- lock_flags |= XFS_IOLOCK_SHARED;
- }
- xfs_iput(iip->ili_inode, lock_flags);
+ lock_flags = iip->ili_lock_flags;
+ iip->ili_lock_flags = 0;
+ if (lock_flags) {
+ xfs_iunlock(iip->ili_inode, lock_flags);
+ IRELE(iip->ili_inode);
}
}
@@ -725,13 +673,12 @@ xfs_inode_item_unlock(
* is the only one that matters. Therefore, simply return the
* given lsn.
*/
-/*ARGSUSED*/
STATIC xfs_lsn_t
xfs_inode_item_committed(
- xfs_inode_log_item_t *iip,
+ struct xfs_log_item *lip,
xfs_lsn_t lsn)
{
- return (lsn);
+ return lsn;
}
/*
@@ -743,13 +690,12 @@ xfs_inode_item_committed(
*/
STATIC void
xfs_inode_item_pushbuf(
- xfs_inode_log_item_t *iip)
+ struct xfs_log_item *lip)
{
- xfs_inode_t *ip;
- xfs_mount_t *mp;
- xfs_buf_t *bp;
+ struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+ struct xfs_inode *ip = iip->ili_inode;
+ struct xfs_buf *bp;
- ip = iip->ili_inode;
ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
/*
@@ -757,14 +703,13 @@ xfs_inode_item_pushbuf(
* inode was taken off the AIL. So, just get out.
*/
if (completion_done(&ip->i_flush) ||
- ((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) {
+ !(lip->li_flags & XFS_LI_IN_AIL)) {
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return;
}
- mp = ip->i_mount;
- bp = xfs_incore(mp->m_ddev_targp, iip->ili_format.ilf_blkno,
- iip->ili_format.ilf_len, XBF_TRYLOCK);
+ bp = xfs_incore(ip->i_mount->m_ddev_targp, iip->ili_format.ilf_blkno,
+ iip->ili_format.ilf_len, XBF_TRYLOCK);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
if (!bp)
@@ -772,10 +717,8 @@ xfs_inode_item_pushbuf(
if (XFS_BUF_ISDELAYWRITE(bp))
xfs_buf_delwri_promote(bp);
xfs_buf_relse(bp);
- return;
}
-
/*
* This is called to asynchronously write the inode associated with this
* inode log item out to disk. The inode will already have been locked by
@@ -783,14 +726,14 @@ xfs_inode_item_pushbuf(
*/
STATIC void
xfs_inode_item_push(
- xfs_inode_log_item_t *iip)
+ struct xfs_log_item *lip)
{
- xfs_inode_t *ip;
-
- ip = iip->ili_inode;
+ struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+ struct xfs_inode *ip = iip->ili_inode;
ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
ASSERT(!completion_done(&ip->i_flush));
+
/*
* Since we were able to lock the inode's flush lock and
* we found it on the AIL, the inode must be dirty. This
@@ -813,43 +756,34 @@ xfs_inode_item_push(
*/
(void) xfs_iflush(ip, 0);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
-
- return;
}
/*
* XXX rcc - this one really has to do something. Probably needs
* to stamp in a new field in the incore inode.
*/
-/* ARGSUSED */
STATIC void
xfs_inode_item_committing(
- xfs_inode_log_item_t *iip,
+ struct xfs_log_item *lip,
xfs_lsn_t lsn)
{
- iip->ili_last_lsn = lsn;
- return;
+ INODE_ITEM(lip)->ili_last_lsn = lsn;
}
/*
* This is the ops vector shared by all buf log items.
*/
static struct xfs_item_ops xfs_inode_item_ops = {
- .iop_size = (uint(*)(xfs_log_item_t*))xfs_inode_item_size,
- .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
- xfs_inode_item_format,
- .iop_pin = (void(*)(xfs_log_item_t*))xfs_inode_item_pin,
- .iop_unpin = (void(*)(xfs_log_item_t*))xfs_inode_item_unpin,
- .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
- xfs_inode_item_unpin_remove,
- .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_inode_item_trylock,
- .iop_unlock = (void(*)(xfs_log_item_t*))xfs_inode_item_unlock,
- .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_inode_item_committed,
- .iop_push = (void(*)(xfs_log_item_t*))xfs_inode_item_push,
- .iop_pushbuf = (void(*)(xfs_log_item_t*))xfs_inode_item_pushbuf,
- .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
- xfs_inode_item_committing
+ .iop_size = xfs_inode_item_size,
+ .iop_format = xfs_inode_item_format,
+ .iop_pin = xfs_inode_item_pin,
+ .iop_unpin = xfs_inode_item_unpin,
+ .iop_trylock = xfs_inode_item_trylock,
+ .iop_unlock = xfs_inode_item_unlock,
+ .iop_committed = xfs_inode_item_committed,
+ .iop_push = xfs_inode_item_push,
+ .iop_pushbuf = xfs_inode_item_pushbuf,
+ .iop_committing = xfs_inode_item_committing
};
@@ -858,10 +792,10 @@ static struct xfs_item_ops xfs_inode_item_ops = {
*/
void
xfs_inode_item_init(
- xfs_inode_t *ip,
- xfs_mount_t *mp)
+ struct xfs_inode *ip,
+ struct xfs_mount *mp)
{
- xfs_inode_log_item_t *iip;
+ struct xfs_inode_log_item *iip;
ASSERT(ip->i_itemp == NULL);
iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP);
@@ -899,14 +833,14 @@ xfs_inode_item_destroy(
* from the AIL if it has not been re-logged, and unlocking the inode's
* flush lock.
*/
-/*ARGSUSED*/
void
xfs_iflush_done(
- xfs_buf_t *bp,
- xfs_inode_log_item_t *iip)
+ struct xfs_buf *bp,
+ struct xfs_log_item *lip)
{
+ struct xfs_inode_log_item *iip = INODE_ITEM(lip);
xfs_inode_t *ip = iip->ili_inode;
- struct xfs_ail *ailp = iip->ili_item.li_ailp;
+ struct xfs_ail *ailp = lip->li_ailp;
/*
* We only want to pull the item from the AIL if it is
@@ -917,12 +851,11 @@ xfs_iflush_done(
* the lock since it's cheaper, and then we recheck while
* holding the lock before removing the inode from the AIL.
*/
- if (iip->ili_logged &&
- (iip->ili_item.li_lsn == iip->ili_flush_lsn)) {
+ if (iip->ili_logged && lip->li_lsn == iip->ili_flush_lsn) {
spin_lock(&ailp->xa_lock);
- if (iip->ili_item.li_lsn == iip->ili_flush_lsn) {
+ if (lip->li_lsn == iip->ili_flush_lsn) {
/* xfs_trans_ail_delete() drops the AIL lock. */
- xfs_trans_ail_delete(ailp, (xfs_log_item_t*)iip);
+ xfs_trans_ail_delete(ailp, lip);
} else {
spin_unlock(&ailp->xa_lock);
}
@@ -940,8 +873,6 @@ xfs_iflush_done(
* Release the inode's flush lock since we're done with it.
*/
xfs_ifunlock(ip);
-
- return;
}
/*
@@ -957,10 +888,8 @@ xfs_iflush_abort(
xfs_inode_t *ip)
{
xfs_inode_log_item_t *iip = ip->i_itemp;
- xfs_mount_t *mp;
iip = ip->i_itemp;
- mp = ip->i_mount;
if (iip) {
struct xfs_ail *ailp = iip->ili_item.li_ailp;
if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
@@ -991,10 +920,10 @@ xfs_iflush_abort(
void
xfs_istale_done(
- xfs_buf_t *bp,
- xfs_inode_log_item_t *iip)
+ struct xfs_buf *bp,
+ struct xfs_log_item *lip)
{
- xfs_iflush_abort(iip->ili_inode);
+ xfs_iflush_abort(INODE_ITEM(lip)->ili_inode);
}
/*
@@ -1007,9 +936,8 @@ xfs_inode_item_format_convert(
xfs_inode_log_format_t *in_f)
{
if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) {
- xfs_inode_log_format_32_t *in_f32;
+ xfs_inode_log_format_32_t *in_f32 = buf->i_addr;
- in_f32 = (xfs_inode_log_format_32_t *)buf->i_addr;
in_f->ilf_type = in_f32->ilf_type;
in_f->ilf_size = in_f32->ilf_size;
in_f->ilf_fields = in_f32->ilf_fields;
@@ -1025,9 +953,8 @@ xfs_inode_item_format_convert(
in_f->ilf_boffset = in_f32->ilf_boffset;
return 0;
} else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){
- xfs_inode_log_format_64_t *in_f64;
+ xfs_inode_log_format_64_t *in_f64 = buf->i_addr;
- in_f64 = (xfs_inode_log_format_64_t *)buf->i_addr;
in_f->ilf_type = in_f64->ilf_type;
in_f->ilf_size = in_f64->ilf_size;
in_f->ilf_fields = in_f64->ilf_fields;
diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h
index 9a46795..d3dee61e 100644
--- a/fs/xfs/xfs_inode_item.h
+++ b/fs/xfs/xfs_inode_item.h
@@ -103,12 +103,6 @@ typedef struct xfs_inode_log_format_64 {
XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
XFS_ILOG_ABROOT)
-#define XFS_ILI_HOLD 0x1
-#define XFS_ILI_IOLOCKED_EXCL 0x2
-#define XFS_ILI_IOLOCKED_SHARED 0x4
-
-#define XFS_ILI_IOLOCKED_ANY (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED)
-
static inline int xfs_ilog_fbroot(int w)
{
return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT);
@@ -137,7 +131,7 @@ typedef struct xfs_inode_log_item {
struct xfs_inode *ili_inode; /* inode ptr */
xfs_lsn_t ili_flush_lsn; /* lsn at last flush */
xfs_lsn_t ili_last_lsn; /* lsn at last transaction */
- unsigned short ili_flags; /* misc flags */
+ unsigned short ili_lock_flags; /* lock flags */
unsigned short ili_logged; /* flushed logged data */
unsigned int ili_last_fields; /* fields when flushed */
struct xfs_bmbt_rec *ili_extents_buf; /* array of logged
@@ -161,8 +155,8 @@ static inline int xfs_inode_clean(xfs_inode_t *ip)
extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
extern void xfs_inode_item_destroy(struct xfs_inode *);
-extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
-extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
+extern void xfs_iflush_done(struct xfs_buf *, struct xfs_log_item *);
+extern void xfs_istale_done(struct xfs_buf *, struct xfs_log_item *);
extern void xfs_iflush_abort(struct xfs_inode *);
extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
xfs_inode_log_format_t *);
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index ef14943..2057614 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -23,19 +23,14 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
-#include "xfs_ialloc.h"
#include "xfs_btree.h"
#include "xfs_bmap.h"
#include "xfs_rtalloc.h"
@@ -123,7 +118,7 @@ xfs_iomap(
error = xfs_bmapi(NULL, ip, offset_fsb,
(xfs_filblks_t)(end_fsb - offset_fsb),
bmapi_flags, NULL, 0, imap,
- nimaps, NULL, NULL);
+ nimaps, NULL);
if (error)
goto out;
@@ -138,7 +133,7 @@ xfs_iomap(
break;
}
- if (flags & (BMAPI_DIRECT|BMAPI_MMAP)) {
+ if (flags & BMAPI_DIRECT) {
error = xfs_iomap_write_direct(ip, offset, count, flags,
imap, nimaps);
} else {
@@ -247,7 +242,7 @@ xfs_iomap_write_direct(
xfs_off_t offset,
size_t count,
int flags,
- xfs_bmbt_irec_t *ret_imap,
+ xfs_bmbt_irec_t *imap,
int *nmaps)
{
xfs_mount_t *mp = ip->i_mount;
@@ -261,7 +256,6 @@ xfs_iomap_write_direct(
int quota_flag;
int rt;
xfs_trans_t *tp;
- xfs_bmbt_irec_t imap;
xfs_bmap_free_t free_list;
uint qblocks, resblks, resrtextents;
int committed;
@@ -285,10 +279,10 @@ xfs_iomap_write_direct(
if (error)
goto error_out;
} else {
- if (*nmaps && (ret_imap->br_startblock == HOLESTARTBLOCK))
+ if (*nmaps && (imap->br_startblock == HOLESTARTBLOCK))
last_fsb = MIN(last_fsb, (xfs_fileoff_t)
- ret_imap->br_blockcount +
- ret_imap->br_startoff);
+ imap->br_blockcount +
+ imap->br_startoff);
}
count_fsb = last_fsb - offset_fsb;
ASSERT(count_fsb > 0);
@@ -334,20 +328,22 @@ xfs_iomap_write_direct(
if (error)
goto error1;
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
bmapi_flag = XFS_BMAPI_WRITE;
if ((flags & BMAPI_DIRECT) && (offset < ip->i_size || extsz))
bmapi_flag |= XFS_BMAPI_PREALLOC;
/*
- * Issue the xfs_bmapi() call to allocate the blocks
+ * Issue the xfs_bmapi() call to allocate the blocks.
+ *
+ * From this point onwards we overwrite the imap pointer that the
+ * caller gave to us.
*/
xfs_bmap_init(&free_list, &firstfsb);
nimaps = 1;
error = xfs_bmapi(tp, ip, offset_fsb, count_fsb, bmapi_flag,
- &firstfsb, 0, &imap, &nimaps, &free_list, NULL);
+ &firstfsb, 0, imap, &nimaps, &free_list);
if (error)
goto error0;
@@ -369,12 +365,11 @@ xfs_iomap_write_direct(
goto error_out;
}
- if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) {
- error = xfs_cmn_err_fsblock_zero(ip, &imap);
+ if (!(imap->br_startblock || XFS_IS_REALTIME_INODE(ip))) {
+ error = xfs_cmn_err_fsblock_zero(ip, imap);
goto error_out;
}
- *ret_imap = imap;
*nmaps = 1;
return 0;
@@ -425,7 +420,7 @@ xfs_iomap_eof_want_preallocate(
imaps = nimaps;
firstblock = NULLFSBLOCK;
error = xfs_bmapi(NULL, ip, start_fsb, count_fsb, 0,
- &firstblock, 0, imap, &imaps, NULL, NULL);
+ &firstblock, 0, imap, &imaps, NULL);
if (error)
return error;
for (n = 0; n < imaps; n++) {
@@ -500,7 +495,7 @@ retry:
(xfs_filblks_t)(last_fsb - offset_fsb),
XFS_BMAPI_DELAY | XFS_BMAPI_WRITE |
XFS_BMAPI_ENTIRE, &firstblock, 1, imap,
- &nimaps, NULL, NULL);
+ &nimaps, NULL);
if (error && (error != ENOSPC))
return XFS_ERROR(error);
@@ -548,7 +543,7 @@ xfs_iomap_write_allocate(
xfs_inode_t *ip,
xfs_off_t offset,
size_t count,
- xfs_bmbt_irec_t *map,
+ xfs_bmbt_irec_t *imap,
int *retmap)
{
xfs_mount_t *mp = ip->i_mount;
@@ -557,7 +552,6 @@ xfs_iomap_write_allocate(
xfs_fsblock_t first_block;
xfs_bmap_free_t free_list;
xfs_filblks_t count_fsb;
- xfs_bmbt_irec_t imap;
xfs_trans_t *tp;
int nimaps, committed;
int error = 0;
@@ -573,8 +567,8 @@ xfs_iomap_write_allocate(
return XFS_ERROR(error);
offset_fsb = XFS_B_TO_FSBT(mp, offset);
- count_fsb = map->br_blockcount;
- map_start_fsb = map->br_startoff;
+ count_fsb = imap->br_blockcount;
+ map_start_fsb = imap->br_startoff;
XFS_STATS_ADD(xs_xstrat_bytes, XFS_FSB_TO_B(mp, count_fsb));
@@ -602,8 +596,7 @@ xfs_iomap_write_allocate(
return XFS_ERROR(error);
}
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
xfs_bmap_init(&free_list, &first_block);
@@ -654,10 +647,15 @@ xfs_iomap_write_allocate(
}
}
- /* Go get the actual blocks */
+ /*
+ * Go get the actual blocks.
+ *
+ * From this point onwards we overwrite the imap
+ * pointer that the caller gave to us.
+ */
error = xfs_bmapi(tp, ip, map_start_fsb, count_fsb,
XFS_BMAPI_WRITE, &first_block, 1,
- &imap, &nimaps, &free_list, NULL);
+ imap, &nimaps, &free_list);
if (error)
goto trans_cancel;
@@ -676,13 +674,12 @@ xfs_iomap_write_allocate(
* See if we were able to allocate an extent that
* covers at least part of the callers request
*/
- if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip)))
- return xfs_cmn_err_fsblock_zero(ip, &imap);
+ if (!(imap->br_startblock || XFS_IS_REALTIME_INODE(ip)))
+ return xfs_cmn_err_fsblock_zero(ip, imap);
- if ((offset_fsb >= imap.br_startoff) &&
- (offset_fsb < (imap.br_startoff +
- imap.br_blockcount))) {
- *map = imap;
+ if ((offset_fsb >= imap->br_startoff) &&
+ (offset_fsb < (imap->br_startoff +
+ imap->br_blockcount))) {
*retmap = 1;
XFS_STATS_INC(xs_xstrat_quick);
return 0;
@@ -692,8 +689,8 @@ xfs_iomap_write_allocate(
* So far we have not mapped the requested part of the
* file, just surrounding data, try again.
*/
- count_fsb -= imap.br_blockcount;
- map_start_fsb = imap.br_startoff + imap.br_blockcount;
+ count_fsb -= imap->br_blockcount;
+ map_start_fsb = imap->br_startoff + imap->br_blockcount;
}
trans_cancel:
@@ -766,8 +763,7 @@ xfs_iomap_write_unwritten(
}
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
/*
* Modify the unwritten extent state of the buffer.
@@ -776,7 +772,7 @@ xfs_iomap_write_unwritten(
nimaps = 1;
error = xfs_bmapi(tp, ip, offset_fsb, count_fsb,
XFS_BMAPI_WRITE|XFS_BMAPI_CONVERT, &firstfsb,
- 1, &imap, &nimaps, &free_list, NULL);
+ 1, &imap, &nimaps, &free_list);
if (error)
goto error_on_bmapi_transaction;
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index 81ac4af..7748a43 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -18,17 +18,16 @@
#ifndef __XFS_IOMAP_H__
#define __XFS_IOMAP_H__
-typedef enum {
- /* base extent manipulation calls */
- BMAPI_READ = (1 << 0), /* read extents */
- BMAPI_WRITE = (1 << 1), /* create extents */
- BMAPI_ALLOCATE = (1 << 2), /* delayed allocate to real extents */
- /* modifiers */
- BMAPI_IGNSTATE = (1 << 4), /* ignore unwritten state on read */
- BMAPI_DIRECT = (1 << 5), /* direct instead of buffered write */
- BMAPI_MMAP = (1 << 6), /* allocate for mmap write */
- BMAPI_TRYLOCK = (1 << 7), /* non-blocking request */
-} bmapi_flags_t;
+/* base extent manipulation calls */
+#define BMAPI_READ (1 << 0) /* read extents */
+#define BMAPI_WRITE (1 << 1) /* create extents */
+#define BMAPI_ALLOCATE (1 << 2) /* delayed allocate to real extents */
+
+/* modifiers */
+#define BMAPI_IGNSTATE (1 << 4) /* ignore unwritten state on read */
+#define BMAPI_DIRECT (1 << 5) /* direct instead of buffered write */
+#define BMAPI_MMA (1 << 6) /* allocate for mmap write */
+#define BMAPI_TRYLOCK (1 << 7) /* non-blocking request */
#define BMAPI_FLAGS \
{ BMAPI_READ, "READ" }, \
@@ -36,7 +35,6 @@ typedef enum {
{ BMAPI_ALLOCATE, "ALLOCATE" }, \
{ BMAPI_IGNSTATE, "IGNSTATE" }, \
{ BMAPI_DIRECT, "DIRECT" }, \
- { BMAPI_MMAP, "MMAP" }, \
{ BMAPI_TRYLOCK, "TRYLOCK" }
struct xfs_inode;
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 2b86f86..7e3626e 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -24,20 +24,17 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_ialloc.h"
#include "xfs_itable.h"
#include "xfs_error.h"
#include "xfs_btree.h"
+#include "xfs_trace.h"
STATIC int
xfs_internal_inum(
@@ -143,7 +140,8 @@ xfs_bulkstat_one_int(
buf->bs_blocks = dic->di_nblocks + ip->i_delayed_blks;
break;
}
- xfs_iput(ip, XFS_ILOCK_SHARED);
+ xfs_iunlock(ip, XFS_ILOCK_SHARED);
+ IRELE(ip);
error = formatter(buffer, ubsize, ubused, buf);
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 5215abc..925d572 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -24,8 +24,6 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_error.h"
#include "xfs_log_priv.h"
@@ -35,8 +33,6 @@
#include "xfs_ialloc_btree.h"
#include "xfs_log_recover.h"
#include "xfs_trans_priv.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_rw.h"
@@ -337,7 +333,6 @@ xfs_log_reserve(
int retval = 0;
ASSERT(client == XFS_TRANSACTION || client == XFS_LOG);
- ASSERT((flags & XFS_LOG_NOSLEEP) == 0);
if (XLOG_FORCED_SHUTDOWN(log))
return XFS_ERROR(EIO);
@@ -552,7 +547,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
.magic = XLOG_UNMOUNT_TYPE,
};
struct xfs_log_iovec reg = {
- .i_addr = (void *)&magic,
+ .i_addr = &magic,
.i_len = sizeof(magic),
.i_type = XLOG_REG_TYPE_UNMOUNT,
};
@@ -1047,7 +1042,6 @@ xlog_alloc_log(xfs_mount_t *mp,
xlog_in_core_t *iclog, *prev_iclog=NULL;
xfs_buf_t *bp;
int i;
- int iclogsize;
int error = ENOMEM;
uint log2_size = 0;
@@ -1127,7 +1121,6 @@ xlog_alloc_log(xfs_mount_t *mp,
* with different amounts of memory. See the definition of
* xlog_in_core_t in xfs_log_priv.h for details.
*/
- iclogsize = log->l_iclog_size;
ASSERT(log->l_iclog_size >= 4096);
for (i=0; i < log->l_iclog_bufs; i++) {
*iclogp = kmem_zalloc(sizeof(xlog_in_core_t), KM_MAYFAIL);
@@ -1428,11 +1421,8 @@ xlog_sync(xlog_t *log,
XFS_BUF_BUSY(bp);
XFS_BUF_ASYNC(bp);
bp->b_flags |= XBF_LOG_BUFFER;
- /*
- * Do an ordered write for the log block.
- * Its unnecessary to flush the first split block in the log wrap case.
- */
- if (!split && (log->l_mp->m_flags & XFS_MOUNT_BARRIER))
+
+ if (log->l_mp->m_flags & XFS_MOUNT_BARRIER)
XFS_BUF_ORDERED(bp);
ASSERT(XFS_BUF_ADDR(bp) <= log->l_logBBsize-1);
diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
index 04c78e6..916eb7d 100644
--- a/fs/xfs/xfs_log.h
+++ b/fs/xfs/xfs_log.h
@@ -55,14 +55,10 @@ static inline xfs_lsn_t _lsn_cmp(xfs_lsn_t lsn1, xfs_lsn_t lsn2)
/*
* Flags to xfs_log_reserve()
*
- * XFS_LOG_SLEEP: If space is not available, sleep (default)
- * XFS_LOG_NOSLEEP: If space is not available, return error
* XFS_LOG_PERM_RESERV: Permanent reservation. When writes are
* performed against this type of reservation, the reservation
* is not decreased. Long running transactions should use this.
*/
-#define XFS_LOG_SLEEP 0x0
-#define XFS_LOG_NOSLEEP 0x1
#define XFS_LOG_PERM_RESERV 0x2
/*
@@ -104,7 +100,7 @@ static inline xfs_lsn_t _lsn_cmp(xfs_lsn_t lsn1, xfs_lsn_t lsn2)
#define XLOG_REG_TYPE_MAX 19
typedef struct xfs_log_iovec {
- xfs_caddr_t i_addr; /* beginning address of region */
+ void *i_addr; /* beginning address of region */
int i_len; /* length in bytes of region */
uint i_type; /* type of region */
} xfs_log_iovec_t;
@@ -201,9 +197,4 @@ int xfs_log_commit_cil(struct xfs_mount *mp, struct xfs_trans *tp,
bool xfs_log_item_in_current_chkpt(struct xfs_log_item *lip);
#endif
-
-
-extern int xlog_debug; /* set to 1 to enable real log */
-
-
#endif /* __XFS_LOG_H__ */
diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index bb17cc0..31e4ea2 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -26,8 +26,6 @@
#include "xfs_log_priv.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_error.h"
#include "xfs_alloc.h"
@@ -554,7 +552,7 @@ xlog_cil_push(
thdr.th_type = XFS_TRANS_CHECKPOINT;
thdr.th_tid = tic->t_tid;
thdr.th_num_items = num_iovecs;
- lhdr.i_addr = (xfs_caddr_t)&thdr;
+ lhdr.i_addr = &thdr;
lhdr.i_len = sizeof(xfs_trans_header_t);
lhdr.i_type = XLOG_REG_TYPE_TRANSHDR;
tic->t_curr_res -= lhdr.i_len + sizeof(xlog_op_header_t);
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 9ac5cfa..6f3f5fa 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -24,15 +24,11 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_error.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
@@ -1565,9 +1561,7 @@ xlog_recover_reorder_trans(
list_splice_init(&trans->r_itemq, &sort_list);
list_for_each_entry_safe(item, n, &sort_list, ri_list) {
- xfs_buf_log_format_t *buf_f;
-
- buf_f = (xfs_buf_log_format_t *)item->ri_buf[0].i_addr;
+ xfs_buf_log_format_t *buf_f = item->ri_buf[0].i_addr;
switch (ITEM_TYPE(item)) {
case XFS_LI_BUF:
@@ -1892,9 +1886,8 @@ xlog_recover_do_inode_buffer(
* current di_next_unlinked field. Extract its value
* and copy it to the buffer copy.
*/
- logged_nextp = (xfs_agino_t *)
- ((char *)(item->ri_buf[item_index].i_addr) +
- (next_unlinked_offset - reg_buf_offset));
+ logged_nextp = item->ri_buf[item_index].i_addr +
+ next_unlinked_offset - reg_buf_offset;
if (unlikely(*logged_nextp == 0)) {
xfs_fs_cmn_err(CE_ALERT, mp,
"bad inode buffer log record (ptr = 0x%p, bp = 0x%p). XFS trying to replay bad (0) inode di_next_unlinked field",
@@ -1973,8 +1966,7 @@ xlog_recover_do_reg_buffer(
item->ri_buf[i].i_len, __func__);
goto next;
}
- error = xfs_qm_dqcheck((xfs_disk_dquot_t *)
- item->ri_buf[i].i_addr,
+ error = xfs_qm_dqcheck(item->ri_buf[i].i_addr,
-1, 0, XFS_QMOPT_DOWARN,
"dquot_buf_recover");
if (error)
@@ -2187,7 +2179,7 @@ xlog_recover_do_buffer_trans(
xlog_recover_item_t *item,
int pass)
{
- xfs_buf_log_format_t *buf_f;
+ xfs_buf_log_format_t *buf_f = item->ri_buf[0].i_addr;
xfs_mount_t *mp;
xfs_buf_t *bp;
int error;
@@ -2197,8 +2189,6 @@ xlog_recover_do_buffer_trans(
ushort flags;
uint buf_flags;
- buf_f = (xfs_buf_log_format_t *)item->ri_buf[0].i_addr;
-
if (pass == XLOG_RECOVER_PASS1) {
/*
* In this pass we're only looking for buf items
@@ -2319,10 +2309,9 @@ xlog_recover_do_inode_trans(
}
if (item->ri_buf[0].i_len == sizeof(xfs_inode_log_format_t)) {
- in_f = (xfs_inode_log_format_t *)item->ri_buf[0].i_addr;
+ in_f = item->ri_buf[0].i_addr;
} else {
- in_f = (xfs_inode_log_format_t *)kmem_alloc(
- sizeof(xfs_inode_log_format_t), KM_SLEEP);
+ in_f = kmem_alloc(sizeof(xfs_inode_log_format_t), KM_SLEEP);
need_free = 1;
error = xfs_inode_item_format_convert(&item->ri_buf[0], in_f);
if (error)
@@ -2370,7 +2359,7 @@ xlog_recover_do_inode_trans(
error = EFSCORRUPTED;
goto error;
}
- dicp = (xfs_icdinode_t *)(item->ri_buf[1].i_addr);
+ dicp = item->ri_buf[1].i_addr;
if (unlikely(dicp->di_magic != XFS_DINODE_MAGIC)) {
xfs_buf_relse(bp);
xfs_fs_cmn_err(CE_ALERT, mp,
@@ -2461,7 +2450,7 @@ xlog_recover_do_inode_trans(
}
/* The core is in in-core format */
- xfs_dinode_to_disk(dip, (xfs_icdinode_t *)item->ri_buf[1].i_addr);
+ xfs_dinode_to_disk(dip, item->ri_buf[1].i_addr);
/* the rest is in on-disk format */
if (item->ri_buf[1].i_len > sizeof(struct xfs_icdinode)) {
@@ -2578,7 +2567,7 @@ xlog_recover_do_quotaoff_trans(
return (0);
}
- qoff_f = (xfs_qoff_logformat_t *)item->ri_buf[0].i_addr;
+ qoff_f = item->ri_buf[0].i_addr;
ASSERT(qoff_f);
/*
@@ -2622,9 +2611,8 @@ xlog_recover_do_dquot_trans(
if (mp->m_qflags == 0)
return (0);
- recddq = (xfs_disk_dquot_t *)item->ri_buf[1].i_addr;
-
- if (item->ri_buf[1].i_addr == NULL) {
+ recddq = item->ri_buf[1].i_addr;
+ if (recddq == NULL) {
cmn_err(CE_ALERT,
"XFS: NULL dquot in %s.", __func__);
return XFS_ERROR(EIO);
@@ -2654,7 +2642,7 @@ xlog_recover_do_dquot_trans(
* The other possibility, of course, is that the quota subsystem was
* removed since the last mount - ENOSYS.
*/
- dq_f = (xfs_dq_logformat_t *)item->ri_buf[0].i_addr;
+ dq_f = item->ri_buf[0].i_addr;
ASSERT(dq_f);
if ((error = xfs_qm_dqcheck(recddq,
dq_f->qlf_id,
@@ -2721,7 +2709,7 @@ xlog_recover_do_efi_trans(
return 0;
}
- efi_formatp = (xfs_efi_log_format_t *)item->ri_buf[0].i_addr;
+ efi_formatp = item->ri_buf[0].i_addr;
mp = log->l_mp;
efip = xfs_efi_init(mp, efi_formatp->efi_nextents);
@@ -2767,7 +2755,7 @@ xlog_recover_do_efd_trans(
return;
}
- efd_formatp = (xfs_efd_log_format_t *)item->ri_buf[0].i_addr;
+ efd_formatp = item->ri_buf[0].i_addr;
ASSERT((item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_32_t) +
((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_32_t)))) ||
(item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_64_t) +
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 69f62d8..aeb9d72 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -25,13 +25,10 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 1d2c7ee..622da21 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -66,65 +66,6 @@ struct xfs_nameops;
struct xfs_ail;
struct xfs_quotainfo;
-
-/*
- * Prototypes and functions for the Data Migration subsystem.
- */
-
-typedef int (*xfs_send_data_t)(int, struct xfs_inode *,
- xfs_off_t, size_t, int, int *);
-typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint);
-typedef int (*xfs_send_destroy_t)(struct xfs_inode *, dm_right_t);
-typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *,
- struct xfs_inode *, dm_right_t,
- struct xfs_inode *, dm_right_t,
- const unsigned char *, const unsigned char *,
- mode_t, int, int);
-typedef int (*xfs_send_mount_t)(struct xfs_mount *, dm_right_t,
- char *, char *);
-typedef void (*xfs_send_unmount_t)(struct xfs_mount *, struct xfs_inode *,
- dm_right_t, mode_t, int, int);
-
-typedef struct xfs_dmops {
- xfs_send_data_t xfs_send_data;
- xfs_send_mmap_t xfs_send_mmap;
- xfs_send_destroy_t xfs_send_destroy;
- xfs_send_namesp_t xfs_send_namesp;
- xfs_send_mount_t xfs_send_mount;
- xfs_send_unmount_t xfs_send_unmount;
-} xfs_dmops_t;
-
-#define XFS_DMAPI_UNMOUNT_FLAGS(mp) \
- (((mp)->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? 0 : DM_FLAGS_UNWANTED)
-
-#define XFS_SEND_DATA(mp, ev,ip,off,len,fl,lock) \
- (*(mp)->m_dm_ops->xfs_send_data)(ev,ip,off,len,fl,lock)
-#define XFS_SEND_MMAP(mp, vma,fl) \
- (*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl)
-#define XFS_SEND_DESTROY(mp, ip,right) \
- (*(mp)->m_dm_ops->xfs_send_destroy)(ip,right)
-#define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \
- (*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl)
-#define XFS_SEND_MOUNT(mp,right,path,name) \
- (*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name)
-#define XFS_SEND_PREUNMOUNT(mp) \
-do { \
- if (mp->m_flags & XFS_MOUNT_DMAPI) { \
- (*(mp)->m_dm_ops->xfs_send_namesp)(DM_EVENT_PREUNMOUNT, mp, \
- (mp)->m_rootip, DM_RIGHT_NULL, \
- (mp)->m_rootip, DM_RIGHT_NULL, \
- NULL, NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \
- } \
-} while (0)
-#define XFS_SEND_UNMOUNT(mp) \
-do { \
- if (mp->m_flags & XFS_MOUNT_DMAPI) { \
- (*(mp)->m_dm_ops->xfs_send_unmount)(mp, (mp)->m_rootip, \
- DM_RIGHT_NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \
- } \
-} while (0)
-
-
#ifdef HAVE_PERCPU_SB
/*
@@ -241,8 +182,6 @@ typedef struct xfs_mount {
uint m_chsize; /* size of next field */
struct xfs_chash *m_chash; /* fs private inode per-cluster
* hash table */
- struct xfs_dmops *m_dm_ops; /* vector of DMI ops */
- struct xfs_qmops *m_qm_ops; /* vector of XQM ops */
atomic_t m_active_trans; /* number trans frozen */
#ifdef HAVE_PERCPU_SB
xfs_icsb_cnts_t __percpu *m_sb_cnts; /* per-cpu superblock counters */
@@ -259,7 +198,7 @@ typedef struct xfs_mount {
wait_queue_head_t m_wait_single_sync_task;
__int64_t m_update_flags; /* sb flags we need to update
on the next remount,rw */
- struct list_head m_mplist; /* inode shrinker mount list */
+ struct shrinker m_inode_shrink; /* inode reclaim shrinker */
} xfs_mount_t;
/*
@@ -269,7 +208,6 @@ typedef struct xfs_mount {
must be synchronous except
for space allocations */
#define XFS_MOUNT_DELAYLOG (1ULL << 1) /* delayed logging is enabled */
-#define XFS_MOUNT_DMAPI (1ULL << 2) /* dmapi is enabled */
#define XFS_MOUNT_WAS_CLEAN (1ULL << 3)
#define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem
operations, typically for
@@ -282,8 +220,6 @@ typedef struct xfs_mount {
#define XFS_MOUNT_GRPID (1ULL << 9) /* group-ID assigned from directory */
#define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */
#define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */
-#define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) /* o_sync is REALLY o_sync */
- /* osyncisdsync is now default*/
#define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above
* 32 bits in size */
#define XFS_MOUNT_SMALL_INUMS (1ULL << 15) /* users wants 32bit inodes */
@@ -440,11 +376,6 @@ extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t);
extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
-extern int xfs_dmops_get(struct xfs_mount *);
-extern void xfs_dmops_put(struct xfs_mount *);
-
-extern struct xfs_dmops xfs_dmcore_xfs;
-
#endif /* __KERNEL__ */
extern void xfs_mod_sb(struct xfs_trans *, __int64_t);
diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c
index fc1cda2..8fca957 100644
--- a/fs/xfs/xfs_rename.c
+++ b/fs/xfs/xfs_rename.c
@@ -24,12 +24,9 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
@@ -116,20 +113,7 @@ xfs_rename(
int spaceres;
int num_inodes;
- xfs_itrace_entry(src_dp);
- xfs_itrace_entry(target_dp);
-
- if (DM_EVENT_ENABLED(src_dp, DM_EVENT_RENAME) ||
- DM_EVENT_ENABLED(target_dp, DM_EVENT_RENAME)) {
- error = XFS_SEND_NAMESP(mp, DM_EVENT_RENAME,
- src_dp, DM_RIGHT_NULL,
- target_dp, DM_RIGHT_NULL,
- src_name->name, target_name->name,
- 0, 0, 0);
- if (error)
- return error;
- }
- /* Return through std_return after this point. */
+ trace_xfs_rename(src_dp, target_dp, src_name, target_name);
new_parent = (src_dp != target_dp);
src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
@@ -184,26 +168,14 @@ xfs_rename(
/*
* Join all the inodes to the transaction. From this point on,
* we can rely on either trans_commit or trans_cancel to unlock
- * them. Note that we need to add a vnode reference to the
- * directories since trans_commit & trans_cancel will decrement
- * them when they unlock the inodes. Also, we need to be careful
- * not to add an inode to the transaction more than once.
+ * them.
*/
- IHOLD(src_dp);
- xfs_trans_ijoin(tp, src_dp, XFS_ILOCK_EXCL);
-
- if (new_parent) {
- IHOLD(target_dp);
- xfs_trans_ijoin(tp, target_dp, XFS_ILOCK_EXCL);
- }
-
- IHOLD(src_ip);
- xfs_trans_ijoin(tp, src_ip, XFS_ILOCK_EXCL);
-
- if (target_ip) {
- IHOLD(target_ip);
- xfs_trans_ijoin(tp, target_ip, XFS_ILOCK_EXCL);
- }
+ xfs_trans_ijoin_ref(tp, src_dp, XFS_ILOCK_EXCL);
+ if (new_parent)
+ xfs_trans_ijoin_ref(tp, target_dp, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, src_ip, XFS_ILOCK_EXCL);
+ if (target_ip)
+ xfs_trans_ijoin_ref(tp, target_ip, XFS_ILOCK_EXCL);
/*
* If we are using project inheritance, we only allow renames
@@ -369,26 +341,13 @@ xfs_rename(
* trans_commit will unlock src_ip, target_ip & decrement
* the vnode references.
*/
- error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-
- /* Fall through to std_return with error = 0 or errno from
- * xfs_trans_commit */
-std_return:
- if (DM_EVENT_ENABLED(src_dp, DM_EVENT_POSTRENAME) ||
- DM_EVENT_ENABLED(target_dp, DM_EVENT_POSTRENAME)) {
- (void) XFS_SEND_NAMESP (mp, DM_EVENT_POSTRENAME,
- src_dp, DM_RIGHT_NULL,
- target_dp, DM_RIGHT_NULL,
- src_name->name, target_name->name,
- 0, error, 0);
- }
- return error;
+ return xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
abort_return:
cancel_flags |= XFS_TRANS_ABORT;
- /* FALLTHROUGH */
error_return:
xfs_bmap_cancel(&free_list);
xfs_trans_cancel(tp, cancel_flags);
- goto std_return;
+ std_return:
+ return error;
}
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index a2d32ce..891260f 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -25,17 +25,10 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
#include "xfs_alloc.h"
#include "xfs_bmap.h"
#include "xfs_rtalloc.h"
@@ -129,7 +122,7 @@ xfs_growfs_rt_alloc(
cancelflags |= XFS_TRANS_ABORT;
error = xfs_bmapi(tp, ip, oblocks, nblocks - oblocks,
XFS_BMAPI_WRITE | XFS_BMAPI_METADATA, &firstblock,
- resblks, &map, &nmap, &flist, NULL);
+ resblks, &map, &nmap, &flist);
if (!error && nmap < 1)
error = XFS_ERROR(ENOSPC);
if (error)
diff --git a/fs/xfs/xfs_rw.c b/fs/xfs/xfs_rw.c
index e336742..56861d5 100644
--- a/fs/xfs/xfs_rw.c
+++ b/fs/xfs/xfs_rw.c
@@ -24,27 +24,12 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
-#include "xfs_inode_item.h"
-#include "xfs_itable.h"
-#include "xfs_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_ialloc.h"
-#include "xfs_attr.h"
-#include "xfs_bmap.h"
#include "xfs_error.h"
-#include "xfs_buf_item.h"
#include "xfs_rw.h"
-#include "xfs_trace.h"
/*
* Force a shutdown of the filesystem instantly while keeping
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 28547df..fdca741 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * Copyright (C) 2010 Red Hat, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
@@ -24,16 +25,12 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_error.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
@@ -47,6 +44,7 @@
#include "xfs_trace.h"
kmem_zone_t *xfs_trans_zone;
+kmem_zone_t *xfs_log_item_desc_zone;
/*
@@ -597,8 +595,7 @@ _xfs_trans_alloc(
tp->t_magic = XFS_TRANS_MAGIC;
tp->t_type = type;
tp->t_mountp = mp;
- tp->t_items_free = XFS_LIC_NUM_SLOTS;
- xfs_lic_init(&(tp->t_items));
+ INIT_LIST_HEAD(&tp->t_items);
INIT_LIST_HEAD(&tp->t_busy);
return tp;
}
@@ -643,8 +640,7 @@ xfs_trans_dup(
ntp->t_magic = XFS_TRANS_MAGIC;
ntp->t_type = tp->t_type;
ntp->t_mountp = tp->t_mountp;
- ntp->t_items_free = XFS_LIC_NUM_SLOTS;
- xfs_lic_init(&(ntp->t_items));
+ INIT_LIST_HEAD(&ntp->t_items);
INIT_LIST_HEAD(&ntp->t_busy);
ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
@@ -1124,6 +1120,108 @@ xfs_trans_unreserve_and_mod_sb(
}
/*
+ * Add the given log item to the transaction's list of log items.
+ *
+ * The log item will now point to its new descriptor with its li_desc field.
+ */
+void
+xfs_trans_add_item(
+ struct xfs_trans *tp,
+ struct xfs_log_item *lip)
+{
+ struct xfs_log_item_desc *lidp;
+
+ ASSERT(lip->li_mountp = tp->t_mountp);
+ ASSERT(lip->li_ailp = tp->t_mountp->m_ail);
+
+ lidp = kmem_zone_zalloc(xfs_log_item_desc_zone, KM_SLEEP | KM_NOFS);
+
+ lidp->lid_item = lip;
+ lidp->lid_flags = 0;
+ lidp->lid_size = 0;
+ list_add_tail(&lidp->lid_trans, &tp->t_items);
+
+ lip->li_desc = lidp;
+}
+
+STATIC void
+xfs_trans_free_item_desc(
+ struct xfs_log_item_desc *lidp)
+{
+ list_del_init(&lidp->lid_trans);
+ kmem_zone_free(xfs_log_item_desc_zone, lidp);
+}
+
+/*
+ * Unlink and free the given descriptor.
+ */
+void
+xfs_trans_del_item(
+ struct xfs_log_item *lip)
+{
+ xfs_trans_free_item_desc(lip->li_desc);
+ lip->li_desc = NULL;
+}
+
+/*
+ * Unlock all of the items of a transaction and free all the descriptors
+ * of that transaction.
+ */
+STATIC void
+xfs_trans_free_items(
+ struct xfs_trans *tp,
+ xfs_lsn_t commit_lsn,
+ int flags)
+{
+ struct xfs_log_item_desc *lidp, *next;
+
+ list_for_each_entry_safe(lidp, next, &tp->t_items, lid_trans) {
+ struct xfs_log_item *lip = lidp->lid_item;
+
+ lip->li_desc = NULL;
+
+ if (commit_lsn != NULLCOMMITLSN)
+ IOP_COMMITTING(lip, commit_lsn);
+ if (flags & XFS_TRANS_ABORT)
+ lip->li_flags |= XFS_LI_ABORTED;
+ IOP_UNLOCK(lip);
+
+ xfs_trans_free_item_desc(lidp);
+ }
+}
+
+/*
+ * Unlock the items associated with a transaction.
+ *
+ * Items which were not logged should be freed. Those which were logged must
+ * still be tracked so they can be unpinned when the transaction commits.
+ */
+STATIC void
+xfs_trans_unlock_items(
+ struct xfs_trans *tp,
+ xfs_lsn_t commit_lsn)
+{
+ struct xfs_log_item_desc *lidp, *next;
+
+ list_for_each_entry_safe(lidp, next, &tp->t_items, lid_trans) {
+ struct xfs_log_item *lip = lidp->lid_item;
+
+ lip->li_desc = NULL;
+
+ if (commit_lsn != NULLCOMMITLSN)
+ IOP_COMMITTING(lip, commit_lsn);
+ IOP_UNLOCK(lip);
+
+ /*
+ * Free the descriptor if the item is not dirty
+ * within this transaction.
+ */
+ if (!(lidp->lid_flags & XFS_LID_DIRTY))
+ xfs_trans_free_item_desc(lidp);
+ }
+}
+
+/*
* Total up the number of log iovecs needed to commit this
* transaction. The transaction itself needs one for the
* transaction header. Ask each dirty item in turn how many
@@ -1134,30 +1232,27 @@ xfs_trans_count_vecs(
struct xfs_trans *tp)
{
int nvecs;
- xfs_log_item_desc_t *lidp;
+ struct xfs_log_item_desc *lidp;
nvecs = 1;
- lidp = xfs_trans_first_item(tp);
- ASSERT(lidp != NULL);
/* In the non-debug case we need to start bailing out if we
* didn't find a log_item here, return zero and let trans_commit
* deal with it.
*/
- if (lidp == NULL)
+ if (list_empty(&tp->t_items)) {
+ ASSERT(0);
return 0;
+ }
- while (lidp != NULL) {
+ list_for_each_entry(lidp, &tp->t_items, lid_trans) {
/*
* Skip items which aren't dirty in this transaction.
*/
- if (!(lidp->lid_flags & XFS_LID_DIRTY)) {
- lidp = xfs_trans_next_item(tp, lidp);
+ if (!(lidp->lid_flags & XFS_LID_DIRTY))
continue;
- }
lidp->lid_size = IOP_SIZE(lidp->lid_item);
nvecs += lidp->lid_size;
- lidp = xfs_trans_next_item(tp, lidp);
}
return nvecs;
@@ -1177,7 +1272,7 @@ xfs_trans_fill_vecs(
struct xfs_trans *tp,
struct xfs_log_iovec *log_vector)
{
- xfs_log_item_desc_t *lidp;
+ struct xfs_log_item_desc *lidp;
struct xfs_log_iovec *vecp;
uint nitems;
@@ -1188,14 +1283,11 @@ xfs_trans_fill_vecs(
vecp = log_vector + 1;
nitems = 0;
- lidp = xfs_trans_first_item(tp);
- ASSERT(lidp);
- while (lidp) {
+ ASSERT(!list_empty(&tp->t_items));
+ list_for_each_entry(lidp, &tp->t_items, lid_trans) {
/* Skip items which aren't dirty in this transaction. */
- if (!(lidp->lid_flags & XFS_LID_DIRTY)) {
- lidp = xfs_trans_next_item(tp, lidp);
+ if (!(lidp->lid_flags & XFS_LID_DIRTY))
continue;
- }
/*
* The item may be marked dirty but not log anything. This can
@@ -1206,7 +1298,6 @@ xfs_trans_fill_vecs(
IOP_FORMAT(lidp->lid_item, vecp);
vecp += lidp->lid_size;
IOP_PIN(lidp->lid_item);
- lidp = xfs_trans_next_item(tp, lidp);
}
/*
@@ -1284,7 +1375,7 @@ xfs_trans_item_committed(
* log item flags, if anyone else stales the buffer we do not want to
* pay any attention to it.
*/
- IOP_UNPIN(lip);
+ IOP_UNPIN(lip, 0);
}
/*
@@ -1301,24 +1392,15 @@ xfs_trans_committed(
struct xfs_trans *tp,
int abortflag)
{
- xfs_log_item_desc_t *lidp;
- xfs_log_item_chunk_t *licp;
- xfs_log_item_chunk_t *next_licp;
+ struct xfs_log_item_desc *lidp, *next;
/* Call the transaction's completion callback if there is one. */
if (tp->t_callback != NULL)
tp->t_callback(tp, tp->t_callarg);
- for (lidp = xfs_trans_first_item(tp);
- lidp != NULL;
- lidp = xfs_trans_next_item(tp, lidp)) {
+ list_for_each_entry_safe(lidp, next, &tp->t_items, lid_trans) {
xfs_trans_item_committed(lidp->lid_item, tp->t_lsn, abortflag);
- }
-
- /* free the item chunks, ignoring the embedded chunk */
- for (licp = tp->t_items.lic_next; licp != NULL; licp = next_licp) {
- next_licp = licp->lic_next;
- kmem_free(licp);
+ xfs_trans_free_item_desc(lidp);
}
xfs_trans_free(tp);
@@ -1333,16 +1415,14 @@ xfs_trans_uncommit(
struct xfs_trans *tp,
uint flags)
{
- xfs_log_item_desc_t *lidp;
+ struct xfs_log_item_desc *lidp;
- for (lidp = xfs_trans_first_item(tp);
- lidp != NULL;
- lidp = xfs_trans_next_item(tp, lidp)) {
+ list_for_each_entry(lidp, &tp->t_items, lid_trans) {
/*
* Unpin all but those that aren't dirty.
*/
if (lidp->lid_flags & XFS_LID_DIRTY)
- IOP_UNPIN_REMOVE(lidp->lid_item, tp);
+ IOP_UNPIN(lidp->lid_item, 1);
}
xfs_trans_unreserve_and_mod_sb(tp);
@@ -1508,33 +1588,28 @@ STATIC struct xfs_log_vec *
xfs_trans_alloc_log_vecs(
xfs_trans_t *tp)
{
- xfs_log_item_desc_t *lidp;
+ struct xfs_log_item_desc *lidp;
struct xfs_log_vec *lv = NULL;
struct xfs_log_vec *ret_lv = NULL;
- lidp = xfs_trans_first_item(tp);
/* Bail out if we didn't find a log item. */
- if (!lidp) {
+ if (list_empty(&tp->t_items)) {
ASSERT(0);
return NULL;
}
- while (lidp != NULL) {
+ list_for_each_entry(lidp, &tp->t_items, lid_trans) {
struct xfs_log_vec *new_lv;
/* Skip items which aren't dirty in this transaction. */
- if (!(lidp->lid_flags & XFS_LID_DIRTY)) {
- lidp = xfs_trans_next_item(tp, lidp);
+ if (!(lidp->lid_flags & XFS_LID_DIRTY))
continue;
- }
/* Skip items that do not have any vectors for writing */
lidp->lid_size = IOP_SIZE(lidp->lid_item);
- if (!lidp->lid_size) {
- lidp = xfs_trans_next_item(tp, lidp);
+ if (!lidp->lid_size)
continue;
- }
new_lv = kmem_zalloc(sizeof(*new_lv) +
lidp->lid_size * sizeof(struct xfs_log_iovec),
@@ -1549,7 +1624,6 @@ xfs_trans_alloc_log_vecs(
else
lv->lv_next = new_lv;
lv = new_lv;
- lidp = xfs_trans_next_item(tp, lidp);
}
return ret_lv;
@@ -1708,12 +1782,6 @@ xfs_trans_cancel(
int flags)
{
int log_flags;
-#ifdef DEBUG
- xfs_log_item_chunk_t *licp;
- xfs_log_item_desc_t *lidp;
- xfs_log_item_t *lip;
- int i;
-#endif
xfs_mount_t *mp = tp->t_mountp;
/*
@@ -1732,21 +1800,11 @@ xfs_trans_cancel(
xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
}
#ifdef DEBUG
- if (!(flags & XFS_TRANS_ABORT)) {
- licp = &(tp->t_items);
- while (licp != NULL) {
- lidp = licp->lic_descs;
- for (i = 0; i < licp->lic_unused; i++, lidp++) {
- if (xfs_lic_isfree(licp, i)) {
- continue;
- }
-
- lip = lidp->lid_item;
- if (!XFS_FORCED_SHUTDOWN(mp))
- ASSERT(!(lip->li_type == XFS_LI_EFD));
- }
- licp = licp->lic_next;
- }
+ if (!(flags & XFS_TRANS_ABORT) && !XFS_FORCED_SHUTDOWN(mp)) {
+ struct xfs_log_item_desc *lidp;
+
+ list_for_each_entry(lidp, &tp->t_items, lid_trans)
+ ASSERT(!(lidp->lid_item->li_type == XFS_LI_EFD));
}
#endif
xfs_trans_unreserve_and_mod_sb(tp);
@@ -1834,7 +1892,6 @@ xfs_trans_roll(
if (error)
return error;
- xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(trans, dp);
+ xfs_trans_ijoin(trans, dp);
return 0;
}
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index e639e8e..c13c0f9 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -161,105 +161,14 @@ typedef struct xfs_trans_header {
* the amount of space needed to log the item it describes
* once we get to commit processing (see xfs_trans_commit()).
*/
-typedef struct xfs_log_item_desc {
+struct xfs_log_item_desc {
struct xfs_log_item *lid_item;
- ushort lid_size;
- unsigned char lid_flags;
- unsigned char lid_index;
-} xfs_log_item_desc_t;
+ ushort lid_size;
+ unsigned char lid_flags;
+ struct list_head lid_trans;
+};
#define XFS_LID_DIRTY 0x1
-#define XFS_LID_PINNED 0x2
-
-/*
- * This structure is used to maintain a chunk list of log_item_desc
- * structures. The free field is a bitmask indicating which descriptors
- * in this chunk's array are free. The unused field is the first value
- * not used since this chunk was allocated.
- */
-#define XFS_LIC_NUM_SLOTS 15
-typedef struct xfs_log_item_chunk {
- struct xfs_log_item_chunk *lic_next;
- ushort lic_free;
- ushort lic_unused;
- xfs_log_item_desc_t lic_descs[XFS_LIC_NUM_SLOTS];
-} xfs_log_item_chunk_t;
-
-#define XFS_LIC_MAX_SLOT (XFS_LIC_NUM_SLOTS - 1)
-#define XFS_LIC_FREEMASK ((1 << XFS_LIC_NUM_SLOTS) - 1)
-
-
-/*
- * Initialize the given chunk. Set the chunk's free descriptor mask
- * to indicate that all descriptors are free. The caller gets to set
- * lic_unused to the right value (0 matches all free). The
- * lic_descs.lid_index values are set up as each desc is allocated.
- */
-static inline void xfs_lic_init(xfs_log_item_chunk_t *cp)
-{
- cp->lic_free = XFS_LIC_FREEMASK;
-}
-
-static inline void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot)
-{
- cp->lic_descs[slot].lid_index = (unsigned char)(slot);
-}
-
-static inline int xfs_lic_vacancy(xfs_log_item_chunk_t *cp)
-{
- return cp->lic_free & XFS_LIC_FREEMASK;
-}
-
-static inline void xfs_lic_all_free(xfs_log_item_chunk_t *cp)
-{
- cp->lic_free = XFS_LIC_FREEMASK;
-}
-
-static inline int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp)
-{
- return ((cp->lic_free & XFS_LIC_FREEMASK) == XFS_LIC_FREEMASK);
-}
-
-static inline int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot)
-{
- return (cp->lic_free & (1 << slot));
-}
-
-static inline void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot)
-{
- cp->lic_free &= ~(1 << slot);
-}
-
-static inline void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot)
-{
- cp->lic_free |= 1 << slot;
-}
-
-static inline xfs_log_item_desc_t *
-xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot)
-{
- return &(cp->lic_descs[slot]);
-}
-
-static inline int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp)
-{
- return (uint)dp->lid_index;
-}
-
-/*
- * Calculate the address of a chunk given a descriptor pointer:
- * dp - dp->lid_index give the address of the start of the lic_descs array.
- * From this we subtract the offset of the lic_descs field in a chunk.
- * All of this yields the address of the chunk, which is
- * cast to a chunk pointer.
- */
-static inline xfs_log_item_chunk_t *
-xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
-{
- return (xfs_log_item_chunk_t*) \
- (((xfs_caddr_t)((dp) - (dp)->lid_index)) - \
- (xfs_caddr_t)(((xfs_log_item_chunk_t*)0)->lic_descs));
-}
#define XFS_TRANS_MAGIC 0x5452414E /* 'TRAN' */
/*
@@ -275,8 +184,6 @@ xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
/*
* Values for call flags parameter.
*/
-#define XFS_TRANS_NOSLEEP 0x1
-#define XFS_TRANS_WAIT 0x2
#define XFS_TRANS_RELEASE_LOG_RES 0x4
#define XFS_TRANS_ABORT 0x8
@@ -438,8 +345,7 @@ typedef struct xfs_item_ops {
uint (*iop_size)(xfs_log_item_t *);
void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *);
void (*iop_pin)(xfs_log_item_t *);
- void (*iop_unpin)(xfs_log_item_t *);
- void (*iop_unpin_remove)(xfs_log_item_t *, struct xfs_trans *);
+ void (*iop_unpin)(xfs_log_item_t *, int remove);
uint (*iop_trylock)(xfs_log_item_t *);
void (*iop_unlock)(xfs_log_item_t *);
xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
@@ -451,8 +357,7 @@ typedef struct xfs_item_ops {
#define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip)
#define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp)
#define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip)
-#define IOP_UNPIN(ip) (*(ip)->li_ops->iop_unpin)(ip)
-#define IOP_UNPIN_REMOVE(ip,tp) (*(ip)->li_ops->iop_unpin_remove)(ip, tp)
+#define IOP_UNPIN(ip, remove) (*(ip)->li_ops->iop_unpin)(ip, remove)
#define IOP_TRYLOCK(ip) (*(ip)->li_ops->iop_trylock)(ip)
#define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip)
#define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn)
@@ -516,8 +421,7 @@ typedef struct xfs_trans {
int64_t t_rblocks_delta;/* superblock rblocks change */
int64_t t_rextents_delta;/* superblocks rextents chg */
int64_t t_rextslog_delta;/* superblocks rextslog chg */
- unsigned int t_items_free; /* log item descs free */
- xfs_log_item_chunk_t t_items; /* first log item desc chunk */
+ struct list_head t_items; /* log item descriptors */
xfs_trans_header_t t_header; /* header for in-log trans */
struct list_head t_busy; /* list of busy extents */
unsigned long t_pflags; /* saved process flags state */
@@ -569,8 +473,8 @@ void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
int xfs_trans_iget(struct xfs_mount *, xfs_trans_t *,
xfs_ino_t , uint, uint, struct xfs_inode **);
-void xfs_trans_ijoin(xfs_trans_t *, struct xfs_inode *, uint);
-void xfs_trans_ihold(xfs_trans_t *, struct xfs_inode *);
+void xfs_trans_ijoin_ref(struct xfs_trans *, struct xfs_inode *, uint);
+void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *);
void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint);
@@ -595,6 +499,7 @@ int xfs_trans_ail_init(struct xfs_mount *);
void xfs_trans_ail_destroy(struct xfs_mount *);
extern kmem_zone_t *xfs_trans_zone;
+extern kmem_zone_t *xfs_log_item_desc_zone;
#endif /* __KERNEL__ */
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index e799824..dc90695 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -24,7 +24,6 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_trans_priv.h"
#include "xfs_error.h"
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 63d81a2..90af025 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -24,14 +24,10 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_buf_item.h"
@@ -51,36 +47,17 @@ xfs_trans_buf_item_match(
xfs_daddr_t blkno,
int len)
{
- xfs_log_item_chunk_t *licp;
- xfs_log_item_desc_t *lidp;
- xfs_buf_log_item_t *blip;
- int i;
+ struct xfs_log_item_desc *lidp;
+ struct xfs_buf_log_item *blip;
len = BBTOB(len);
- for (licp = &tp->t_items; licp != NULL; licp = licp->lic_next) {
- if (xfs_lic_are_all_free(licp)) {
- ASSERT(licp == &tp->t_items);
- ASSERT(licp->lic_next == NULL);
- return NULL;
- }
-
- for (i = 0; i < licp->lic_unused; i++) {
- /*
- * Skip unoccupied slots.
- */
- if (xfs_lic_isfree(licp, i))
- continue;
-
- lidp = xfs_lic_slot(licp, i);
- blip = (xfs_buf_log_item_t *)lidp->lid_item;
- if (blip->bli_item.li_type != XFS_LI_BUF)
- continue;
-
- if (XFS_BUF_TARGET(blip->bli_buf) == target &&
- XFS_BUF_ADDR(blip->bli_buf) == blkno &&
- XFS_BUF_COUNT(blip->bli_buf) == len)
- return blip->bli_buf;
- }
+ list_for_each_entry(lidp, &tp->t_items, lid_trans) {
+ blip = (struct xfs_buf_log_item *)lidp->lid_item;
+ if (blip->bli_item.li_type == XFS_LI_BUF &&
+ XFS_BUF_TARGET(blip->bli_buf) == target &&
+ XFS_BUF_ADDR(blip->bli_buf) == blkno &&
+ XFS_BUF_COUNT(blip->bli_buf) == len)
+ return blip->bli_buf;
}
return NULL;
@@ -127,7 +104,7 @@ _xfs_trans_bjoin(
/*
* Get a log_item_desc to point at the new item.
*/
- (void) xfs_trans_add_item(tp, (xfs_log_item_t *)bip);
+ xfs_trans_add_item(tp, &bip->bli_item);
/*
* Initialize b_fsprivate2 so we can find it with incore_match()
@@ -483,7 +460,6 @@ xfs_trans_brelse(xfs_trans_t *tp,
{
xfs_buf_log_item_t *bip;
xfs_log_item_t *lip;
- xfs_log_item_desc_t *lidp;
/*
* Default to a normal brelse() call if the tp is NULL.
@@ -514,13 +490,6 @@ xfs_trans_brelse(xfs_trans_t *tp,
ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL));
ASSERT(atomic_read(&bip->bli_refcount) > 0);
- /*
- * Find the item descriptor pointing to this buffer's
- * log item. It must be there.
- */
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)bip);
- ASSERT(lidp != NULL);
-
trace_xfs_trans_brelse(bip);
/*
@@ -536,7 +505,7 @@ xfs_trans_brelse(xfs_trans_t *tp,
* If the buffer is dirty within this transaction, we can't
* release it until we commit.
*/
- if (lidp->lid_flags & XFS_LID_DIRTY)
+ if (bip->bli_item.li_desc->lid_flags & XFS_LID_DIRTY)
return;
/*
@@ -553,7 +522,7 @@ xfs_trans_brelse(xfs_trans_t *tp,
/*
* Free up the log item descriptor tracking the released item.
*/
- xfs_trans_free_item(tp, lidp);
+ xfs_trans_del_item(&bip->bli_item);
/*
* Clear the hold flag in the buf log item if it is set.
@@ -665,7 +634,6 @@ xfs_trans_log_buf(xfs_trans_t *tp,
uint last)
{
xfs_buf_log_item_t *bip;
- xfs_log_item_desc_t *lidp;
ASSERT(XFS_BUF_ISBUSY(bp));
ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
@@ -690,7 +658,7 @@ xfs_trans_log_buf(xfs_trans_t *tp,
bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
ASSERT(atomic_read(&bip->bli_refcount) > 0);
XFS_BUF_SET_IODONE_FUNC(bp, xfs_buf_iodone_callbacks);
- bip->bli_item.li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*))xfs_buf_iodone;
+ bip->bli_item.li_cb = xfs_buf_iodone;
trace_xfs_trans_log_buf(bip);
@@ -707,11 +675,8 @@ xfs_trans_log_buf(xfs_trans_t *tp,
bip->bli_format.blf_flags &= ~XFS_BLF_CANCEL;
}
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)bip);
- ASSERT(lidp != NULL);
-
tp->t_flags |= XFS_TRANS_DIRTY;
- lidp->lid_flags |= XFS_LID_DIRTY;
+ bip->bli_item.li_desc->lid_flags |= XFS_LID_DIRTY;
bip->bli_flags |= XFS_BLI_LOGGED;
xfs_buf_item_log(bip, first, last);
}
@@ -740,7 +705,6 @@ xfs_trans_binval(
xfs_trans_t *tp,
xfs_buf_t *bp)
{
- xfs_log_item_desc_t *lidp;
xfs_buf_log_item_t *bip;
ASSERT(XFS_BUF_ISBUSY(bp));
@@ -748,8 +712,6 @@ xfs_trans_binval(
ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)bip);
- ASSERT(lidp != NULL);
ASSERT(atomic_read(&bip->bli_refcount) > 0);
trace_xfs_trans_binval(bip);
@@ -764,7 +726,7 @@ xfs_trans_binval(
ASSERT(!(bip->bli_flags & (XFS_BLI_LOGGED | XFS_BLI_DIRTY)));
ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_INODE_BUF));
ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL);
- ASSERT(lidp->lid_flags & XFS_LID_DIRTY);
+ ASSERT(bip->bli_item.li_desc->lid_flags & XFS_LID_DIRTY);
ASSERT(tp->t_flags & XFS_TRANS_DIRTY);
return;
}
@@ -797,7 +759,7 @@ xfs_trans_binval(
bip->bli_format.blf_flags |= XFS_BLF_CANCEL;
memset((char *)(bip->bli_format.blf_data_map), 0,
(bip->bli_format.blf_map_size * sizeof(uint)));
- lidp->lid_flags |= XFS_LID_DIRTY;
+ bip->bli_item.li_desc->lid_flags |= XFS_LID_DIRTY;
tp->t_flags |= XFS_TRANS_DIRTY;
}
@@ -853,12 +815,9 @@ xfs_trans_stale_inode_buf(
ASSERT(atomic_read(&bip->bli_refcount) > 0);
bip->bli_flags |= XFS_BLI_STALE_INODE;
- bip->bli_item.li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*))
- xfs_buf_iodone;
+ bip->bli_item.li_cb = xfs_buf_iodone;
}
-
-
/*
* Mark the buffer as being one which contains newly allocated
* inodes. We need to make sure that even if this buffer is
diff --git a/fs/xfs/xfs_trans_extfree.c b/fs/xfs/xfs_trans_extfree.c
index 27cce2a..f783d5e 100644
--- a/fs/xfs/xfs_trans_extfree.c
+++ b/fs/xfs/xfs_trans_extfree.c
@@ -23,7 +23,6 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_trans_priv.h"
#include "xfs_extfree_item.h"
@@ -49,9 +48,8 @@ xfs_trans_get_efi(xfs_trans_t *tp,
/*
* Get a log_item_desc to point at the new item.
*/
- (void) xfs_trans_add_item(tp, (xfs_log_item_t*)efip);
-
- return (efip);
+ xfs_trans_add_item(tp, &efip->efi_item);
+ return efip;
}
/*
@@ -65,15 +63,11 @@ xfs_trans_log_efi_extent(xfs_trans_t *tp,
xfs_fsblock_t start_block,
xfs_extlen_t ext_len)
{
- xfs_log_item_desc_t *lidp;
uint next_extent;
xfs_extent_t *extp;
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)efip);
- ASSERT(lidp != NULL);
-
tp->t_flags |= XFS_TRANS_DIRTY;
- lidp->lid_flags |= XFS_LID_DIRTY;
+ efip->efi_item.li_desc->lid_flags |= XFS_LID_DIRTY;
next_extent = efip->efi_next_extent;
ASSERT(next_extent < efip->efi_format.efi_nextents);
@@ -106,9 +100,8 @@ xfs_trans_get_efd(xfs_trans_t *tp,
/*
* Get a log_item_desc to point at the new item.
*/
- (void) xfs_trans_add_item(tp, (xfs_log_item_t*)efdp);
-
- return (efdp);
+ xfs_trans_add_item(tp, &efdp->efd_item);
+ return efdp;
}
/*
@@ -122,15 +115,11 @@ xfs_trans_log_efd_extent(xfs_trans_t *tp,
xfs_fsblock_t start_block,
xfs_extlen_t ext_len)
{
- xfs_log_item_desc_t *lidp;
uint next_extent;
xfs_extent_t *extp;
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)efdp);
- ASSERT(lidp != NULL);
-
tp->t_flags |= XFS_TRANS_DIRTY;
- lidp->lid_flags |= XFS_LID_DIRTY;
+ efdp->efd_item.li_desc->lid_flags |= XFS_LID_DIRTY;
next_extent = efdp->efd_next_extent;
ASSERT(next_extent < efdp->efd_format.efd_nextents);
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index 2559dfe..cdc53a1 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -24,20 +24,16 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
-#include "xfs_ialloc.h"
#include "xfs_trans_priv.h"
#include "xfs_inode_item.h"
+#include "xfs_trace.h"
#ifdef XFS_TRANS_DEBUG
STATIC void
@@ -47,7 +43,6 @@ xfs_trans_inode_broot_debug(
#define xfs_trans_inode_broot_debug(ip)
#endif
-
/*
* Get an inode and join it to the transaction.
*/
@@ -63,77 +58,65 @@ xfs_trans_iget(
int error;
error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp);
- if (!error && tp)
- xfs_trans_ijoin(tp, *ipp, lock_flags);
+ if (!error && tp) {
+ xfs_trans_ijoin(tp, *ipp);
+ (*ipp)->i_itemp->ili_lock_flags = lock_flags;
+ }
return error;
}
/*
- * Add the locked inode to the transaction.
- * The inode must be locked, and it cannot be associated with any
- * transaction. The caller must specify the locks already held
- * on the inode.
+ * Add a locked inode to the transaction.
+ *
+ * The inode must be locked, and it cannot be associated with any transaction.
*/
void
xfs_trans_ijoin(
- xfs_trans_t *tp,
- xfs_inode_t *ip,
- uint lock_flags)
+ struct xfs_trans *tp,
+ struct xfs_inode *ip)
{
xfs_inode_log_item_t *iip;
ASSERT(ip->i_transp == NULL);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
- ASSERT(lock_flags & XFS_ILOCK_EXCL);
if (ip->i_itemp == NULL)
xfs_inode_item_init(ip, ip->i_mount);
iip = ip->i_itemp;
- ASSERT(iip->ili_flags == 0);
+ ASSERT(iip->ili_lock_flags == 0);
/*
* Get a log_item_desc to point at the new item.
*/
- (void) xfs_trans_add_item(tp, (xfs_log_item_t*)(iip));
+ xfs_trans_add_item(tp, &iip->ili_item);
xfs_trans_inode_broot_debug(ip);
/*
- * If the IO lock is already held, mark that in the inode log item.
- */
- if (lock_flags & XFS_IOLOCK_EXCL) {
- iip->ili_flags |= XFS_ILI_IOLOCKED_EXCL;
- } else if (lock_flags & XFS_IOLOCK_SHARED) {
- iip->ili_flags |= XFS_ILI_IOLOCKED_SHARED;
- }
-
- /*
* Initialize i_transp so we can find it with xfs_inode_incore()
* in xfs_trans_iget() above.
*/
ip->i_transp = tp;
}
-
-
/*
- * Mark the inode as not needing to be unlocked when the inode item's
- * IOP_UNLOCK() routine is called. The inode must already be locked
- * and associated with the given transaction.
+ * Add a locked inode to the transaction.
+ *
+ *
+ * Grabs a reference to the inode which will be dropped when the transaction
+ * is commited. The inode will also be unlocked at that point. The inode
+ * must be locked, and it cannot be associated with any transaction.
*/
-/*ARGSUSED*/
void
-xfs_trans_ihold(
- xfs_trans_t *tp,
- xfs_inode_t *ip)
+xfs_trans_ijoin_ref(
+ struct xfs_trans *tp,
+ struct xfs_inode *ip,
+ uint lock_flags)
{
- ASSERT(ip->i_transp == tp);
- ASSERT(ip->i_itemp != NULL);
- ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
-
- ip->i_itemp->ili_flags |= XFS_ILI_HOLD;
+ xfs_trans_ijoin(tp, ip);
+ IHOLD(ip);
+ ip->i_itemp->ili_lock_flags = lock_flags;
}
-
/*
* This is called to mark the fields indicated in fieldmask as needing
* to be logged when the transaction is committed. The inode must
@@ -149,17 +132,12 @@ xfs_trans_log_inode(
xfs_inode_t *ip,
uint flags)
{
- xfs_log_item_desc_t *lidp;
-
ASSERT(ip->i_transp == tp);
ASSERT(ip->i_itemp != NULL);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
- lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(ip->i_itemp));
- ASSERT(lidp != NULL);
-
tp->t_flags |= XFS_TRANS_DIRTY;
- lidp->lid_flags |= XFS_LID_DIRTY;
+ ip->i_itemp->ili_item.li_desc->lid_flags |= XFS_LID_DIRTY;
/*
* Always OR in the bits from the ili_last_fields field.
diff --git a/fs/xfs/xfs_trans_item.c b/fs/xfs/xfs_trans_item.c
deleted file mode 100644
index f11d37d..0000000
--- a/fs/xfs/xfs_trans_item.c
+++ /dev/null
@@ -1,441 +0,0 @@
-/*
- * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include "xfs.h"
-#include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
-/* XXX: from here down needed until struct xfs_trans has its own ailp */
-#include "xfs_bit.h"
-#include "xfs_buf_item.h"
-#include "xfs_sb.h"
-#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
-#include "xfs_mount.h"
-
-STATIC int xfs_trans_unlock_chunk(xfs_log_item_chunk_t *,
- int, int, xfs_lsn_t);
-
-/*
- * This is called to add the given log item to the transaction's
- * list of log items. It must find a free log item descriptor
- * or allocate a new one and add the item to that descriptor.
- * The function returns a pointer to item descriptor used to point
- * to the new item. The log item will now point to its new descriptor
- * with its li_desc field.
- */
-xfs_log_item_desc_t *
-xfs_trans_add_item(xfs_trans_t *tp, xfs_log_item_t *lip)
-{
- xfs_log_item_desc_t *lidp;
- xfs_log_item_chunk_t *licp;
- int i=0;
-
- /*
- * If there are no free descriptors, allocate a new chunk
- * of them and put it at the front of the chunk list.
- */
- if (tp->t_items_free == 0) {
- licp = (xfs_log_item_chunk_t*)
- kmem_alloc(sizeof(xfs_log_item_chunk_t), KM_SLEEP);
- ASSERT(licp != NULL);
- /*
- * Initialize the chunk, and then
- * claim the first slot in the newly allocated chunk.
- */
- xfs_lic_init(licp);
- xfs_lic_claim(licp, 0);
- licp->lic_unused = 1;
- xfs_lic_init_slot(licp, 0);
- lidp = xfs_lic_slot(licp, 0);
-
- /*
- * Link in the new chunk and update the free count.
- */
- licp->lic_next = tp->t_items.lic_next;
- tp->t_items.lic_next = licp;
- tp->t_items_free = XFS_LIC_NUM_SLOTS - 1;
-
- /*
- * Initialize the descriptor and the generic portion
- * of the log item.
- *
- * Point the new slot at this item and return it.
- * Also point the log item at its currently active
- * descriptor and set the item's mount pointer.
- */
- lidp->lid_item = lip;
- lidp->lid_flags = 0;
- lidp->lid_size = 0;
- lip->li_desc = lidp;
- lip->li_mountp = tp->t_mountp;
- lip->li_ailp = tp->t_mountp->m_ail;
- return lidp;
- }
-
- /*
- * Find the free descriptor. It is somewhere in the chunklist
- * of descriptors.
- */
- licp = &tp->t_items;
- while (licp != NULL) {
- if (xfs_lic_vacancy(licp)) {
- if (licp->lic_unused <= XFS_LIC_MAX_SLOT) {
- i = licp->lic_unused;
- ASSERT(xfs_lic_isfree(licp, i));
- break;
- }
- for (i = 0; i <= XFS_LIC_MAX_SLOT; i++) {
- if (xfs_lic_isfree(licp, i))
- break;
- }
- ASSERT(i <= XFS_LIC_MAX_SLOT);
- break;
- }
- licp = licp->lic_next;
- }
- ASSERT(licp != NULL);
- /*
- * If we find a free descriptor, claim it,
- * initialize it, and return it.
- */
- xfs_lic_claim(licp, i);
- if (licp->lic_unused <= i) {
- licp->lic_unused = i + 1;
- xfs_lic_init_slot(licp, i);
- }
- lidp = xfs_lic_slot(licp, i);
- tp->t_items_free--;
- lidp->lid_item = lip;
- lidp->lid_flags = 0;
- lidp->lid_size = 0;
- lip->li_desc = lidp;
- lip->li_mountp = tp->t_mountp;
- lip->li_ailp = tp->t_mountp->m_ail;
- return lidp;
-}
-
-/*
- * Free the given descriptor.
- *
- * This requires setting the bit in the chunk's free mask corresponding
- * to the given slot.
- */
-void
-xfs_trans_free_item(xfs_trans_t *tp, xfs_log_item_desc_t *lidp)
-{
- uint slot;
- xfs_log_item_chunk_t *licp;
- xfs_log_item_chunk_t **licpp;
-
- slot = xfs_lic_desc_to_slot(lidp);
- licp = xfs_lic_desc_to_chunk(lidp);
- xfs_lic_relse(licp, slot);
- lidp->lid_item->li_desc = NULL;
- tp->t_items_free++;
-
- /*
- * If there are no more used items in the chunk and this is not
- * the chunk embedded in the transaction structure, then free
- * the chunk. First pull it from the chunk list and then
- * free it back to the heap. We didn't bother with a doubly
- * linked list here because the lists should be very short
- * and this is not a performance path. It's better to save
- * the memory of the extra pointer.
- *
- * Also decrement the transaction structure's count of free items
- * by the number in a chunk since we are freeing an empty chunk.
- */
- if (xfs_lic_are_all_free(licp) && (licp != &(tp->t_items))) {
- licpp = &(tp->t_items.lic_next);
- while (*licpp != licp) {
- ASSERT(*licpp != NULL);
- licpp = &((*licpp)->lic_next);
- }
- *licpp = licp->lic_next;
- kmem_free(licp);
- tp->t_items_free -= XFS_LIC_NUM_SLOTS;
- }
-}
-
-/*
- * This is called to find the descriptor corresponding to the given
- * log item. It returns a pointer to the descriptor.
- * The log item MUST have a corresponding descriptor in the given
- * transaction. This routine does not return NULL, it panics.
- *
- * The descriptor pointer is kept in the log item's li_desc field.
- * Just return it.
- */
-/*ARGSUSED*/
-xfs_log_item_desc_t *
-xfs_trans_find_item(xfs_trans_t *tp, xfs_log_item_t *lip)
-{
- ASSERT(lip->li_desc != NULL);
-
- return lip->li_desc;
-}
-
-
-/*
- * Return a pointer to the first descriptor in the chunk list.
- * This does not return NULL if there are none, it panics.
- *
- * The first descriptor must be in either the first or second chunk.
- * This is because the only chunk allowed to be empty is the first.
- * All others are freed when they become empty.
- *
- * At some point this and xfs_trans_next_item() should be optimized
- * to quickly look at the mask to determine if there is anything to
- * look at.
- */
-xfs_log_item_desc_t *
-xfs_trans_first_item(xfs_trans_t *tp)
-{
- xfs_log_item_chunk_t *licp;
- int i;
-
- licp = &tp->t_items;
- /*
- * If it's not in the first chunk, skip to the second.
- */
- if (xfs_lic_are_all_free(licp)) {
- licp = licp->lic_next;
- }
-
- /*
- * Return the first non-free descriptor in the chunk.
- */
- ASSERT(!xfs_lic_are_all_free(licp));
- for (i = 0; i < licp->lic_unused; i++) {
- if (xfs_lic_isfree(licp, i)) {
- continue;
- }
-
- return xfs_lic_slot(licp, i);
- }
- cmn_err(CE_WARN, "xfs_trans_first_item() -- no first item");
- return NULL;
-}
-
-
-/*
- * Given a descriptor, return the next descriptor in the chunk list.
- * This returns NULL if there are no more used descriptors in the list.
- *
- * We do this by first locating the chunk in which the descriptor resides,
- * and then scanning forward in the chunk and the list for the next
- * used descriptor.
- */
-/*ARGSUSED*/
-xfs_log_item_desc_t *
-xfs_trans_next_item(xfs_trans_t *tp, xfs_log_item_desc_t *lidp)
-{
- xfs_log_item_chunk_t *licp;
- int i;
-
- licp = xfs_lic_desc_to_chunk(lidp);
-
- /*
- * First search the rest of the chunk. The for loop keeps us
- * from referencing things beyond the end of the chunk.
- */
- for (i = (int)xfs_lic_desc_to_slot(lidp) + 1; i < licp->lic_unused; i++) {
- if (xfs_lic_isfree(licp, i)) {
- continue;
- }
-
- return xfs_lic_slot(licp, i);
- }
-
- /*
- * Now search the next chunk. It must be there, because the
- * next chunk would have been freed if it were empty.
- * If there is no next chunk, return NULL.
- */
- if (licp->lic_next == NULL) {
- return NULL;
- }
-
- licp = licp->lic_next;
- ASSERT(!xfs_lic_are_all_free(licp));
- for (i = 0; i < licp->lic_unused; i++) {
- if (xfs_lic_isfree(licp, i)) {
- continue;
- }
-
- return xfs_lic_slot(licp, i);
- }
- ASSERT(0);
- /* NOTREACHED */
- return NULL; /* keep gcc quite */
-}
-
-/*
- * This is called to unlock all of the items of a transaction and to free
- * all the descriptors of that transaction.
- *
- * It walks the list of descriptors and unlocks each item. It frees
- * each chunk except that embedded in the transaction as it goes along.
- */
-void
-xfs_trans_free_items(
- xfs_trans_t *tp,
- xfs_lsn_t commit_lsn,
- int flags)
-{
- xfs_log_item_chunk_t *licp;
- xfs_log_item_chunk_t *next_licp;
- int abort;
-
- abort = flags & XFS_TRANS_ABORT;
- licp = &tp->t_items;
- /*
- * Special case the embedded chunk so we don't free it below.
- */
- if (!xfs_lic_are_all_free(licp)) {
- (void) xfs_trans_unlock_chunk(licp, 1, abort, commit_lsn);
- xfs_lic_all_free(licp);
- licp->lic_unused = 0;
- }
- licp = licp->lic_next;
-
- /*
- * Unlock each item in each chunk and free the chunks.
- */
- while (licp != NULL) {
- ASSERT(!xfs_lic_are_all_free(licp));
- (void) xfs_trans_unlock_chunk(licp, 1, abort, commit_lsn);
- next_licp = licp->lic_next;
- kmem_free(licp);
- licp = next_licp;
- }
-
- /*
- * Reset the transaction structure's free item count.
- */
- tp->t_items_free = XFS_LIC_NUM_SLOTS;
- tp->t_items.lic_next = NULL;
-}
-
-
-
-/*
- * This is called to unlock the items associated with a transaction.
- * Items which were not logged should be freed.
- * Those which were logged must still be tracked so they can be unpinned
- * when the transaction commits.
- */
-void
-xfs_trans_unlock_items(xfs_trans_t *tp, xfs_lsn_t commit_lsn)
-{
- xfs_log_item_chunk_t *licp;
- xfs_log_item_chunk_t *next_licp;
- xfs_log_item_chunk_t **licpp;
- int freed;
-
- freed = 0;
- licp = &tp->t_items;
-
- /*
- * Special case the embedded chunk so we don't free.
- */
- if (!xfs_lic_are_all_free(licp)) {
- freed = xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
- }
- licpp = &(tp->t_items.lic_next);
- licp = licp->lic_next;
-
- /*
- * Unlock each item in each chunk, free non-dirty descriptors,
- * and free empty chunks.
- */
- while (licp != NULL) {
- ASSERT(!xfs_lic_are_all_free(licp));
- freed += xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
- next_licp = licp->lic_next;
- if (xfs_lic_are_all_free(licp)) {
- *licpp = next_licp;
- kmem_free(licp);
- freed -= XFS_LIC_NUM_SLOTS;
- } else {
- licpp = &(licp->lic_next);
- }
- ASSERT(*licpp == next_licp);
- licp = next_licp;
- }
-
- /*
- * Fix the free descriptor count in the transaction.
- */
- tp->t_items_free += freed;
-}
-
-/*
- * Unlock each item pointed to by a descriptor in the given chunk.
- * Stamp the commit lsn into each item if necessary.
- * Free descriptors pointing to items which are not dirty if freeing_chunk
- * is zero. If freeing_chunk is non-zero, then we need to unlock all
- * items in the chunk.
- *
- * Return the number of descriptors freed.
- */
-STATIC int
-xfs_trans_unlock_chunk(
- xfs_log_item_chunk_t *licp,
- int freeing_chunk,
- int abort,
- xfs_lsn_t commit_lsn)
-{
- xfs_log_item_desc_t *lidp;
- xfs_log_item_t *lip;
- int i;
- int freed;
-
- freed = 0;
- lidp = licp->lic_descs;
- for (i = 0; i < licp->lic_unused; i++, lidp++) {
- if (xfs_lic_isfree(licp, i)) {
- continue;
- }
- lip = lidp->lid_item;
- lip->li_desc = NULL;
-
- if (commit_lsn != NULLCOMMITLSN)
- IOP_COMMITTING(lip, commit_lsn);
- if (abort)
- lip->li_flags |= XFS_LI_ABORTED;
- IOP_UNLOCK(lip);
-
- /*
- * Free the descriptor if the item is not dirty
- * within this transaction and the caller is not
- * going to just free the entire thing regardless.
- */
- if (!(freeing_chunk) &&
- (!(lidp->lid_flags & XFS_LID_DIRTY) || abort)) {
- xfs_lic_relse(licp, i);
- freed++;
- }
- }
-
- return freed;
-}
diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h
index c6e4f2c8..e2d93d8 100644
--- a/fs/xfs/xfs_trans_priv.h
+++ b/fs/xfs/xfs_trans_priv.h
@@ -23,22 +23,8 @@ struct xfs_log_item_desc;
struct xfs_mount;
struct xfs_trans;
-/*
- * From xfs_trans_item.c
- */
-struct xfs_log_item_desc *xfs_trans_add_item(struct xfs_trans *,
- struct xfs_log_item *);
-void xfs_trans_free_item(struct xfs_trans *,
- struct xfs_log_item_desc *);
-struct xfs_log_item_desc *xfs_trans_find_item(struct xfs_trans *,
- struct xfs_log_item *);
-struct xfs_log_item_desc *xfs_trans_first_item(struct xfs_trans *);
-struct xfs_log_item_desc *xfs_trans_next_item(struct xfs_trans *,
- struct xfs_log_item_desc *);
-
-void xfs_trans_unlock_items(struct xfs_trans *tp, xfs_lsn_t commit_lsn);
-void xfs_trans_free_items(struct xfs_trans *tp, xfs_lsn_t commit_lsn,
- int flags);
+void xfs_trans_add_item(struct xfs_trans *, struct xfs_log_item *);
+void xfs_trans_del_item(struct xfs_log_item *);
void xfs_trans_item_committed(struct xfs_log_item *lip,
xfs_lsn_t commit_lsn, int aborted);
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
index 4d88616..b7d5769 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -25,18 +25,14 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
#include "xfs_bmap.h"
#include "xfs_error.h"
#include "xfs_quota.h"
-#include "xfs_rw.h"
#include "xfs_itable.h"
#include "xfs_utils.h"
@@ -324,86 +320,3 @@ xfs_bumplink(
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
return 0;
}
-
-/*
- * Try to truncate the given file to 0 length. Currently called
- * only out of xfs_remove when it has to truncate a file to free
- * up space for the remove to proceed.
- */
-int
-xfs_truncate_file(
- xfs_mount_t *mp,
- xfs_inode_t *ip)
-{
- xfs_trans_t *tp;
- int error;
-
-#ifdef QUOTADEBUG
- /*
- * This is called to truncate the quotainodes too.
- */
- if (XFS_IS_UQUOTA_ON(mp)) {
- if (ip->i_ino != mp->m_sb.sb_uquotino)
- ASSERT(ip->i_udquot);
- }
- if (XFS_IS_OQUOTA_ON(mp)) {
- if (ip->i_ino != mp->m_sb.sb_gquotino)
- ASSERT(ip->i_gdquot);
- }
-#endif
- /*
- * Make the call to xfs_itruncate_start before starting the
- * transaction, because we cannot make the call while we're
- * in a transaction.
- */
- xfs_ilock(ip, XFS_IOLOCK_EXCL);
- error = xfs_itruncate_start(ip, XFS_ITRUNC_DEFINITE, (xfs_fsize_t)0);
- if (error) {
- xfs_iunlock(ip, XFS_IOLOCK_EXCL);
- return error;
- }
-
- tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE);
- if ((error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
- XFS_TRANS_PERM_LOG_RES,
- XFS_ITRUNCATE_LOG_COUNT))) {
- xfs_trans_cancel(tp, 0);
- xfs_iunlock(ip, XFS_IOLOCK_EXCL);
- return error;
- }
-
- /*
- * Follow the normal truncate locking protocol. Since we
- * hold the inode in the transaction, we know that its number
- * of references will stay constant.
- */
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
- xfs_trans_ihold(tp, ip);
- /*
- * Signal a sync xaction. The only case where that isn't
- * the case is if we're truncating an already unlinked file
- * on a wsync fs. In that case, we know the blocks can't
- * reappear in the file because the links to file are
- * permanently toast. Currently, we're always going to
- * want a sync transaction because this code is being
- * called from places where nlink is guaranteed to be 1
- * but I'm leaving the tests in to protect against future
- * changes -- rcc.
- */
- error = xfs_itruncate_finish(&tp, ip, (xfs_fsize_t)0,
- XFS_DATA_FORK,
- ((ip->i_d.di_nlink != 0 ||
- !(mp->m_flags & XFS_MOUNT_WSYNC))
- ? 1 : 0));
- if (error) {
- xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
- XFS_TRANS_ABORT);
- } else {
- xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
- error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
- }
- xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-
- return error;
-}
diff --git a/fs/xfs/xfs_utils.h b/fs/xfs/xfs_utils.h
index ef32122..f55b967 100644
--- a/fs/xfs/xfs_utils.h
+++ b/fs/xfs/xfs_utils.h
@@ -18,7 +18,6 @@
#ifndef __XFS_UTILS_H__
#define __XFS_UTILS_H__
-extern int xfs_truncate_file(xfs_mount_t *, xfs_inode_t *);
extern int xfs_dir_ialloc(xfs_trans_t **, xfs_inode_t *, mode_t, xfs_nlink_t,
xfs_dev_t, cred_t *, prid_t, int,
xfs_inode_t **, int *);
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index c164683..3ac137d 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -26,19 +26,14 @@
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
#include "xfs_itable.h"
-#include "xfs_btree.h"
#include "xfs_ialloc.h"
#include "xfs_alloc.h"
#include "xfs_bmap.h"
@@ -73,7 +68,7 @@ xfs_setattr(
struct xfs_dquot *udqp, *gdqp, *olddquot1, *olddquot2;
int need_iolock = 1;
- xfs_itrace_entry(ip);
+ trace_xfs_setattr(ip);
if (mp->m_flags & XFS_MOUNT_RDONLY)
return XFS_ERROR(EROFS);
@@ -143,16 +138,6 @@ xfs_setattr(
goto error_return;
}
} else {
- if (DM_EVENT_ENABLED(ip, DM_EVENT_TRUNCATE) &&
- !(flags & XFS_ATTR_DMI)) {
- int dmflags = AT_DELAY_FLAG(flags) | DM_SEM_FLAG_WR;
- code = XFS_SEND_DATA(mp, DM_EVENT_TRUNCATE, ip,
- iattr->ia_size, 0, dmflags, NULL);
- if (code) {
- lock_flags = 0;
- goto error_return;
- }
- }
if (need_iolock)
lock_flags |= XFS_IOLOCK_EXCL;
}
@@ -283,8 +268,7 @@ xfs_setattr(
commit_flags = XFS_TRANS_RELEASE_LOG_RES;
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, lock_flags);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
/*
* Only change the c/mtime if we are changing the size
@@ -334,8 +318,7 @@ xfs_setattr(
xfs_iflags_set(ip, XFS_ITRUNCATED);
}
} else if (tp) {
- xfs_trans_ijoin(tp, ip, lock_flags);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
}
/*
@@ -470,17 +453,10 @@ xfs_setattr(
return XFS_ERROR(code);
}
- if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE) &&
- !(flags & XFS_ATTR_DMI)) {
- (void) XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL,
- NULL, DM_RIGHT_NULL, NULL, NULL,
- 0, 0, AT_DELAY_FLAG(flags));
- }
return 0;
abort_return:
commit_flags |= XFS_TRANS_ABORT;
- /* FALLTHROUGH */
error_return:
xfs_qm_dqrele(udqp);
xfs_qm_dqrele(gdqp);
@@ -516,7 +492,7 @@ xfs_readlink_bmap(
int error = 0;
error = xfs_bmapi(NULL, ip, 0, XFS_B_TO_FSB(mp, pathlen), 0, NULL, 0,
- mval, &nmaps, NULL, NULL);
+ mval, &nmaps, NULL);
if (error)
goto out;
@@ -557,7 +533,7 @@ xfs_readlink(
int pathlen;
int error = 0;
- xfs_itrace_entry(ip);
+ trace_xfs_readlink(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
@@ -613,14 +589,14 @@ xfs_free_eofblocks(
*/
end_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)ip->i_size));
last_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp));
- map_len = last_fsb - end_fsb;
- if (map_len <= 0)
+ if (last_fsb <= end_fsb)
return 0;
+ map_len = last_fsb - end_fsb;
nimaps = 1;
xfs_ilock(ip, XFS_ILOCK_SHARED);
error = xfs_bmapi(NULL, ip, end_fsb, map_len, 0,
- NULL, 0, &imap, &nimaps, NULL, NULL);
+ NULL, 0, &imap, &nimaps, NULL);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
if (!error && (nimaps != 0) &&
@@ -675,10 +651,7 @@ xfs_free_eofblocks(
}
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip,
- XFS_IOLOCK_EXCL |
- XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
error = xfs_itruncate_finish(&tp, ip,
ip->i_size,
@@ -750,8 +723,7 @@ xfs_inactive_symlink_rmt(
xfs_ilock(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
size = (int)ip->i_d.di_size;
ip->i_d.di_size = 0;
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
/*
* Find the block(s) so we can inval and unmap them.
@@ -761,7 +733,7 @@ xfs_inactive_symlink_rmt(
nmaps = ARRAY_SIZE(mval);
if ((error = xfs_bmapi(tp, ip, 0, XFS_B_TO_FSB(mp, size),
XFS_BMAPI_METADATA, &first_block, 0, mval, &nmaps,
- &free_list, NULL)))
+ &free_list)))
goto error0;
/*
* Invalidate the block(s).
@@ -776,7 +748,7 @@ xfs_inactive_symlink_rmt(
* Unmap the dead block(s) to the free_list.
*/
if ((error = xfs_bunmapi(tp, ip, 0, size, XFS_BMAPI_METADATA, nmaps,
- &first_block, &free_list, NULL, &done)))
+ &first_block, &free_list, &done)))
goto error1;
ASSERT(done);
/*
@@ -795,8 +767,7 @@ xfs_inactive_symlink_rmt(
* Mark it dirty so it will be logged and moved forward in the log as
* part of every commit.
*/
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
/*
* Get a new, empty transaction to return to our caller.
@@ -929,8 +900,7 @@ xfs_inactive_attrs(
goto error_cancel;
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
xfs_idestroy_fork(ip, XFS_ATTR_FORK);
ASSERT(ip->i_d.di_anextents == 0);
@@ -1035,8 +1005,6 @@ xfs_inactive(
int error;
int truncate;
- xfs_itrace_entry(ip);
-
/*
* If the inode is already free, then there can be nothing
* to clean up here.
@@ -1060,9 +1028,6 @@ xfs_inactive(
mp = ip->i_mount;
- if (ip->i_d.di_nlink == 0 && DM_EVENT_ENABLED(ip, DM_EVENT_DESTROY))
- XFS_SEND_DESTROY(mp, ip, DM_RIGHT_NULL);
-
error = 0;
/* If this is a read-only mount, don't do this (would generate I/O) */
@@ -1120,8 +1085,7 @@ xfs_inactive(
}
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
/*
* normally, we have to run xfs_itruncate_finish sync.
@@ -1154,8 +1118,7 @@ xfs_inactive(
return VN_INACTIVE_CACHE;
}
- xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
} else {
error = xfs_trans_reserve(tp, 0,
XFS_IFREE_LOG_RES(mp),
@@ -1168,8 +1131,7 @@ xfs_inactive(
}
xfs_ilock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
}
/*
@@ -1257,7 +1219,7 @@ xfs_lookup(
int error;
uint lock_mode;
- xfs_itrace_entry(dp);
+ trace_xfs_lookup(dp, name);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return XFS_ERROR(EIO);
@@ -1309,21 +1271,11 @@ xfs_create(
uint log_res;
uint log_count;
- xfs_itrace_entry(dp);
+ trace_xfs_create(dp, name);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
- if (DM_EVENT_ENABLED(dp, DM_EVENT_CREATE)) {
- error = XFS_SEND_NAMESP(mp, DM_EVENT_CREATE,
- dp, DM_RIGHT_NULL, NULL,
- DM_RIGHT_NULL, name->name, NULL,
- mode, 0, 0);
-
- if (error)
- return error;
- }
-
if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
prid = dp->i_d.di_projid;
else
@@ -1427,8 +1379,7 @@ xfs_create(
* the transaction cancel unlocking dp so don't do it explicitly in the
* error path.
*/
- IHOLD(dp);
- xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, dp, XFS_ILOCK_EXCL);
unlock_dp_on_error = B_FALSE;
error = xfs_dir_createname(tp, dp, name, ip->i_ino,
@@ -1487,16 +1438,7 @@ xfs_create(
xfs_qm_dqrele(gdqp);
*ipp = ip;
-
- /* Fallthrough to std_return with error = 0 */
- std_return:
- if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTCREATE)) {
- XFS_SEND_NAMESP(mp, DM_EVENT_POSTCREATE, dp, DM_RIGHT_NULL,
- ip, DM_RIGHT_NULL, name->name, NULL, mode,
- error, 0);
- }
-
- return error;
+ return 0;
out_bmap_cancel:
xfs_bmap_cancel(&free_list);
@@ -1510,8 +1452,8 @@ xfs_create(
if (unlock_dp_on_error)
xfs_iunlock(dp, XFS_ILOCK_EXCL);
-
- goto std_return;
+ std_return:
+ return error;
out_abort_rele:
/*
@@ -1726,20 +1668,11 @@ xfs_remove(
uint resblks;
uint log_count;
- xfs_itrace_entry(dp);
- xfs_itrace_entry(ip);
+ trace_xfs_remove(dp, name);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
- if (DM_EVENT_ENABLED(dp, DM_EVENT_REMOVE)) {
- error = XFS_SEND_NAMESP(mp, DM_EVENT_REMOVE, dp, DM_RIGHT_NULL,
- NULL, DM_RIGHT_NULL, name->name, NULL,
- ip->i_d.di_mode, 0, 0);
- if (error)
- return error;
- }
-
error = xfs_qm_dqattach(dp, 0);
if (error)
goto std_return;
@@ -1782,15 +1715,8 @@ xfs_remove(
xfs_lock_two_inodes(dp, ip, XFS_ILOCK_EXCL);
- /*
- * At this point, we've gotten both the directory and the entry
- * inodes locked.
- */
- IHOLD(ip);
- xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
-
- IHOLD(dp);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, dp, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL);
/*
* If we're removing a directory perform some additional validation.
@@ -1877,21 +1803,15 @@ xfs_remove(
if (!is_dir && link_zero && xfs_inode_is_filestream(ip))
xfs_filestream_deassociate(ip);
- std_return:
- if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTREMOVE)) {
- XFS_SEND_NAMESP(mp, DM_EVENT_POSTREMOVE, dp, DM_RIGHT_NULL,
- NULL, DM_RIGHT_NULL, name->name, NULL,
- ip->i_d.di_mode, error, 0);
- }
-
- return error;
+ return 0;
out_bmap_cancel:
xfs_bmap_cancel(&free_list);
cancel_flags |= XFS_TRANS_ABORT;
out_trans_cancel:
xfs_trans_cancel(tp, cancel_flags);
- goto std_return;
+ std_return:
+ return error;
}
int
@@ -1909,25 +1829,13 @@ xfs_link(
int committed;
int resblks;
- xfs_itrace_entry(tdp);
- xfs_itrace_entry(sip);
+ trace_xfs_link(tdp, target_name);
ASSERT(!S_ISDIR(sip->i_d.di_mode));
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
- if (DM_EVENT_ENABLED(tdp, DM_EVENT_LINK)) {
- error = XFS_SEND_NAMESP(mp, DM_EVENT_LINK,
- tdp, DM_RIGHT_NULL,
- sip, DM_RIGHT_NULL,
- target_name->name, NULL, 0, 0, 0);
- if (error)
- return error;
- }
-
- /* Return through std_return after this point. */
-
error = xfs_qm_dqattach(sip, 0);
if (error)
goto std_return;
@@ -1953,15 +1861,8 @@ xfs_link(
xfs_lock_two_inodes(sip, tdp, XFS_ILOCK_EXCL);
- /*
- * Increment vnode ref counts since xfs_trans_commit &
- * xfs_trans_cancel will both unlock the inodes and
- * decrement the associated ref counts.
- */
- IHOLD(sip);
- IHOLD(tdp);
- xfs_trans_ijoin(tp, sip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, tdp, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, sip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, tdp, XFS_ILOCK_EXCL);
/*
* If the source has too many links, we can't make any more to it.
@@ -2014,27 +1915,14 @@ xfs_link(
goto abort_return;
}
- error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
- if (error)
- goto std_return;
-
- /* Fall through to std_return with error = 0. */
-std_return:
- if (DM_EVENT_ENABLED(sip, DM_EVENT_POSTLINK)) {
- (void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTLINK,
- tdp, DM_RIGHT_NULL,
- sip, DM_RIGHT_NULL,
- target_name->name, NULL, 0, error, 0);
- }
- return error;
+ return xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
abort_return:
cancel_flags |= XFS_TRANS_ABORT;
- /* FALLTHROUGH */
-
error_return:
xfs_trans_cancel(tp, cancel_flags);
- goto std_return;
+ std_return:
+ return error;
}
int
@@ -2074,7 +1962,7 @@ xfs_symlink(
ip = NULL;
tp = NULL;
- xfs_itrace_entry(dp);
+ trace_xfs_symlink(dp, link_name);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
@@ -2086,17 +1974,6 @@ xfs_symlink(
if (pathlen >= MAXPATHLEN) /* total string too long */
return XFS_ERROR(ENAMETOOLONG);
- if (DM_EVENT_ENABLED(dp, DM_EVENT_SYMLINK)) {
- error = XFS_SEND_NAMESP(mp, DM_EVENT_SYMLINK, dp,
- DM_RIGHT_NULL, NULL, DM_RIGHT_NULL,
- link_name->name,
- (unsigned char *)target_path, 0, 0, 0);
- if (error)
- return error;
- }
-
- /* Return through std_return after this point. */
-
udqp = gdqp = NULL;
if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
prid = dp->i_d.di_projid;
@@ -2180,8 +2057,7 @@ xfs_symlink(
* transaction cancel unlocking dp so don't do it explicitly in the
* error path.
*/
- IHOLD(dp);
- xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, dp, XFS_ILOCK_EXCL);
unlock_dp_on_error = B_FALSE;
/*
@@ -2215,7 +2091,7 @@ xfs_symlink(
error = xfs_bmapi(tp, ip, first_fsb, fs_blocks,
XFS_BMAPI_WRITE | XFS_BMAPI_METADATA,
&first_block, resblks, mval, &nmaps,
- &free_list, NULL);
+ &free_list);
if (error) {
goto error1;
}
@@ -2278,21 +2154,8 @@ xfs_symlink(
xfs_qm_dqrele(udqp);
xfs_qm_dqrele(gdqp);
- /* Fall through to std_return with error = 0 or errno from
- * xfs_trans_commit */
-std_return:
- if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTSYMLINK)) {
- (void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTSYMLINK,
- dp, DM_RIGHT_NULL,
- error ? NULL : ip,
- DM_RIGHT_NULL, link_name->name,
- (unsigned char *)target_path,
- 0, error, 0);
- }
-
- if (!error)
- *ipp = ip;
- return error;
+ *ipp = ip;
+ return 0;
error2:
IRELE(ip);
@@ -2306,8 +2169,8 @@ std_return:
if (unlock_dp_on_error)
xfs_iunlock(dp, XFS_ILOCK_EXCL);
-
- goto std_return;
+ std_return:
+ return error;
}
int
@@ -2333,13 +2196,12 @@ xfs_set_dmattrs(
return error;
}
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL);
ip->i_d.di_dmevmask = evmask;
ip->i_d.di_dmstate = state;
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
- IHOLD(ip);
error = xfs_trans_commit(tp, 0);
return error;
@@ -2390,7 +2252,7 @@ xfs_alloc_file_space(
int committed;
int error;
- xfs_itrace_entry(ip);
+ trace_xfs_alloc_file_space(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
@@ -2412,25 +2274,9 @@ xfs_alloc_file_space(
startoffset_fsb = XFS_B_TO_FSBT(mp, offset);
allocatesize_fsb = XFS_B_TO_FSB(mp, count);
- /* Generate a DMAPI event if needed. */
- if (alloc_type != 0 && offset < ip->i_size &&
- (attr_flags & XFS_ATTR_DMI) == 0 &&
- DM_EVENT_ENABLED(ip, DM_EVENT_WRITE)) {
- xfs_off_t end_dmi_offset;
-
- end_dmi_offset = offset+len;
- if (end_dmi_offset > ip->i_size)
- end_dmi_offset = ip->i_size;
- error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, offset,
- end_dmi_offset - offset, 0, NULL);
- if (error)
- return error;
- }
-
/*
* Allocate file space until done or until there is an error
*/
-retry:
while (allocatesize_fsb && !error) {
xfs_fileoff_t s, e;
@@ -2488,8 +2334,7 @@ retry:
if (error)
goto error1;
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
/*
* Issue the xfs_bmapi() call to allocate the blocks
@@ -2498,7 +2343,7 @@ retry:
error = xfs_bmapi(tp, ip, startoffset_fsb,
allocatesize_fsb, bmapi_flag,
&firstfsb, 0, imapp, &nimaps,
- &free_list, NULL);
+ &free_list);
if (error) {
goto error0;
}
@@ -2527,17 +2372,6 @@ retry:
startoffset_fsb += allocated_fsb;
allocatesize_fsb -= allocated_fsb;
}
-dmapi_enospc_check:
- if (error == ENOSPC && (attr_flags & XFS_ATTR_DMI) == 0 &&
- DM_EVENT_ENABLED(ip, DM_EVENT_NOSPACE)) {
- error = XFS_SEND_NAMESP(mp, DM_EVENT_NOSPACE,
- ip, DM_RIGHT_NULL,
- ip, DM_RIGHT_NULL,
- NULL, NULL, 0, 0, 0); /* Delay flag intentionally unused */
- if (error == 0)
- goto retry; /* Maybe DMAPI app. has made space */
- /* else fall through with error from XFS_SEND_DATA */
- }
return error;
@@ -2548,7 +2382,7 @@ error0: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
error1: /* Just cancel transaction */
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
- goto dmapi_enospc_check;
+ return error;
}
/*
@@ -2598,7 +2432,7 @@ xfs_zero_remaining_bytes(
offset_fsb = XFS_B_TO_FSBT(mp, offset);
nimap = 1;
error = xfs_bmapi(NULL, ip, offset_fsb, 1, 0,
- NULL, 0, &imap, &nimap, NULL, NULL);
+ NULL, 0, &imap, &nimap, NULL);
if (error || nimap < 1)
break;
ASSERT(imap.br_blockcount >= 1);
@@ -2661,7 +2495,6 @@ xfs_free_file_space(
{
int committed;
int done;
- xfs_off_t end_dmi_offset;
xfs_fileoff_t endoffset_fsb;
int error;
xfs_fsblock_t firstfsb;
@@ -2680,7 +2513,7 @@ xfs_free_file_space(
mp = ip->i_mount;
- xfs_itrace_entry(ip);
+ trace_xfs_free_file_space(ip);
error = xfs_qm_dqattach(ip, 0);
if (error)
@@ -2691,19 +2524,7 @@ xfs_free_file_space(
return error;
rt = XFS_IS_REALTIME_INODE(ip);
startoffset_fsb = XFS_B_TO_FSB(mp, offset);
- end_dmi_offset = offset + len;
- endoffset_fsb = XFS_B_TO_FSBT(mp, end_dmi_offset);
-
- if (offset < ip->i_size && (attr_flags & XFS_ATTR_DMI) == 0 &&
- DM_EVENT_ENABLED(ip, DM_EVENT_WRITE)) {
- if (end_dmi_offset > ip->i_size)
- end_dmi_offset = ip->i_size;
- error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip,
- offset, end_dmi_offset - offset,
- AT_DELAY_FLAG(attr_flags), NULL);
- if (error)
- return error;
- }
+ endoffset_fsb = XFS_B_TO_FSBT(mp, offset + len);
if (attr_flags & XFS_ATTR_NOLOCK)
need_iolock = 0;
@@ -2731,7 +2552,7 @@ xfs_free_file_space(
if (rt && !xfs_sb_version_hasextflgbit(&mp->m_sb)) {
nimap = 1;
error = xfs_bmapi(NULL, ip, startoffset_fsb,
- 1, 0, NULL, 0, &imap, &nimap, NULL, NULL);
+ 1, 0, NULL, 0, &imap, &nimap, NULL);
if (error)
goto out_unlock_iolock;
ASSERT(nimap == 0 || nimap == 1);
@@ -2746,7 +2567,7 @@ xfs_free_file_space(
}
nimap = 1;
error = xfs_bmapi(NULL, ip, endoffset_fsb - 1,
- 1, 0, NULL, 0, &imap, &nimap, NULL, NULL);
+ 1, 0, NULL, 0, &imap, &nimap, NULL);
if (error)
goto out_unlock_iolock;
ASSERT(nimap == 0 || nimap == 1);
@@ -2814,8 +2635,7 @@ xfs_free_file_space(
if (error)
goto error1;
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
/*
* issue the bunmapi() call to free the blocks
@@ -2823,7 +2643,7 @@ xfs_free_file_space(
xfs_bmap_init(&free_list, &firstfsb);
error = xfs_bunmapi(tp, ip, startoffset_fsb,
endoffset_fsb - startoffset_fsb,
- 0, 2, &firstfsb, &free_list, NULL, &done);
+ 0, 2, &firstfsb, &free_list, &done);
if (error) {
goto error0;
}
@@ -2883,8 +2703,6 @@ xfs_change_file_space(
xfs_trans_t *tp;
struct iattr iattr;
- xfs_itrace_entry(ip);
-
if (!S_ISREG(ip->i_d.di_mode))
return XFS_ERROR(EINVAL);
@@ -2985,8 +2803,7 @@ xfs_change_file_space(
xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, ip);
+ xfs_trans_ijoin(tp, ip);
if ((attr_flags & XFS_ATTR_DMI) == 0) {
ip->i_d.di_mode &= ~S_ISUID;
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