diff options
Diffstat (limited to 'fs/nfs')
-rw-r--r-- | fs/nfs/client.c | 11 | ||||
-rw-r--r-- | fs/nfs/delegation.c | 3 | ||||
-rw-r--r-- | fs/nfs/dir.c | 2 | ||||
-rw-r--r-- | fs/nfs/fscache-index.c | 5 | ||||
-rw-r--r-- | fs/nfs/inode.c | 20 | ||||
-rw-r--r-- | fs/nfs/internal.h | 2 | ||||
-rw-r--r-- | fs/nfs/nfs4client.c | 17 | ||||
-rw-r--r-- | fs/nfs/nfs4proc.c | 10 | ||||
-rw-r--r-- | fs/nfs/nfs4state.c | 4 | ||||
-rw-r--r-- | fs/nfs/nfstrace.h | 5 | ||||
-rw-r--r-- | fs/nfs/super.c | 22 | ||||
-rw-r--r-- | fs/nfs/write.c | 10 |
12 files changed, 68 insertions, 43 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 0ac2fb1..b9129e2 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -291,12 +291,23 @@ static struct nfs_client *nfs_match_client(const struct nfs_client_initdata *dat const struct sockaddr *sap = data->addr; struct nfs_net *nn = net_generic(data->net, nfs_net_id); +again: list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) { const struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr; /* Don't match clients that failed to initialise properly */ if (clp->cl_cons_state < 0) continue; + /* If a client is still initializing then we need to wait */ + if (clp->cl_cons_state > NFS_CS_READY) { + refcount_inc(&clp->cl_count); + spin_unlock(&nn->nfs_client_lock); + nfs_wait_client_init_complete(clp); + nfs_put_client(clp); + spin_lock(&nn->nfs_client_lock); + goto again; + } + /* Different NFS versions cannot share the same nfs_client */ if (clp->rpc_ops != data->nfs_mod->rpc_ops) continue; diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index ade44ca..d8b4762 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -12,6 +12,7 @@ #include <linux/sched.h> #include <linux/slab.h> #include <linux/spinlock.h> +#include <linux/iversion.h> #include <linux/nfs4.h> #include <linux/nfs_fs.h> @@ -347,7 +348,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs4_stateid_copy(&delegation->stateid, &res->delegation); delegation->type = res->delegation_type; delegation->pagemod_limit = res->pagemod_limit; - delegation->change_attr = inode->i_version; + delegation->change_attr = inode_peek_iversion_raw(inode); delegation->cred = get_rpccred(cred); delegation->inode = inode; delegation->flags = 1<<NFS_DELEGATION_REFERENCED; diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index e51ae52..2f3f867 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1256,7 +1256,7 @@ static int nfs_dentry_delete(const struct dentry *dentry) /* Unhash it, so that ->d_iput() would be called */ return 1; } - if (!(dentry->d_sb->s_flags & MS_ACTIVE)) { + if (!(dentry->d_sb->s_flags & SB_ACTIVE)) { /* Unhash it, so that ancestors of killed async unlink * files will be cleaned up during umount */ return 1; diff --git a/fs/nfs/fscache-index.c b/fs/nfs/fscache-index.c index 3025fe8..0ee4b93 100644 --- a/fs/nfs/fscache-index.c +++ b/fs/nfs/fscache-index.c @@ -16,6 +16,7 @@ #include <linux/nfs_fs.h> #include <linux/nfs_fs_sb.h> #include <linux/in6.h> +#include <linux/iversion.h> #include "internal.h" #include "fscache.h" @@ -211,7 +212,7 @@ static uint16_t nfs_fscache_inode_get_aux(const void *cookie_netfs_data, auxdata.ctime = nfsi->vfs_inode.i_ctime; if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4) - auxdata.change_attr = nfsi->vfs_inode.i_version; + auxdata.change_attr = inode_peek_iversion_raw(&nfsi->vfs_inode); if (bufmax > sizeof(auxdata)) bufmax = sizeof(auxdata); @@ -243,7 +244,7 @@ enum fscache_checkaux nfs_fscache_inode_check_aux(void *cookie_netfs_data, auxdata.ctime = nfsi->vfs_inode.i_ctime; if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4) - auxdata.change_attr = nfsi->vfs_inode.i_version; + auxdata.change_attr = inode_peek_iversion_raw(&nfsi->vfs_inode); if (memcmp(data, &auxdata, datalen) != 0) return FSCACHE_CHECKAUX_OBSOLETE; diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 38b93d5..93552c4 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -38,8 +38,8 @@ #include <linux/slab.h> #include <linux/compat.h> #include <linux/freezer.h> - #include <linux/uaccess.h> +#include <linux/iversion.h> #include "nfs4_fs.h" #include "callback.h" @@ -483,7 +483,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st memset(&inode->i_atime, 0, sizeof(inode->i_atime)); memset(&inode->i_mtime, 0, sizeof(inode->i_mtime)); memset(&inode->i_ctime, 0, sizeof(inode->i_ctime)); - inode->i_version = 0; + inode_set_iversion_raw(inode, 0); inode->i_size = 0; clear_nlink(inode); inode->i_uid = make_kuid(&init_user_ns, -2); @@ -508,7 +508,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st else if (nfs_server_capable(inode, NFS_CAP_CTIME)) nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); if (fattr->valid & NFS_ATTR_FATTR_CHANGE) - inode->i_version = fattr->change_attr; + inode_set_iversion_raw(inode, fattr->change_attr); else nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR | NFS_INO_REVAL_PAGECACHE); @@ -752,7 +752,7 @@ int nfs_getattr(const struct path *path, struct kstat *stat, * Note that we only have to check the vfsmount flags here: * - NFS always sets S_NOATIME by so checking it would give a * bogus result - * - NFS never sets MS_NOATIME or MS_NODIRATIME so there is + * - NFS never sets SB_NOATIME or SB_NODIRATIME so there is * no point in checking those. */ if ((path->mnt->mnt_flags & MNT_NOATIME) || @@ -1289,8 +1289,8 @@ static unsigned long nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr if ((fattr->valid & NFS_ATTR_FATTR_PRECHANGE) && (fattr->valid & NFS_ATTR_FATTR_CHANGE) - && inode->i_version == fattr->pre_change_attr) { - inode->i_version = fattr->change_attr; + && !inode_cmp_iversion_raw(inode, fattr->pre_change_attr)) { + inode_set_iversion_raw(inode, fattr->change_attr); if (S_ISDIR(inode->i_mode)) nfs_set_cache_invalid(inode, NFS_INO_INVALID_DATA); ret |= NFS_INO_INVALID_ATTR; @@ -1348,7 +1348,7 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat if (!nfs_file_has_buffered_writers(nfsi)) { /* Verify a few of the more important attributes */ - if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) != 0 && inode->i_version != fattr->change_attr) + if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) != 0 && inode_cmp_iversion_raw(inode, fattr->change_attr)) invalid |= NFS_INO_INVALID_ATTR | NFS_INO_REVAL_PAGECACHE; if ((fattr->valid & NFS_ATTR_FATTR_MTIME) && !timespec_equal(&inode->i_mtime, &fattr->mtime)) @@ -1642,7 +1642,7 @@ int nfs_post_op_update_inode_force_wcc_locked(struct inode *inode, struct nfs_fa } if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) != 0 && (fattr->valid & NFS_ATTR_FATTR_PRECHANGE) == 0) { - fattr->pre_change_attr = inode->i_version; + fattr->pre_change_attr = inode_peek_iversion_raw(inode); fattr->valid |= NFS_ATTR_FATTR_PRECHANGE; } if ((fattr->valid & NFS_ATTR_FATTR_CTIME) != 0 && @@ -1778,7 +1778,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) /* More cache consistency checks */ if (fattr->valid & NFS_ATTR_FATTR_CHANGE) { - if (inode->i_version != fattr->change_attr) { + if (inode_cmp_iversion_raw(inode, fattr->change_attr)) { dprintk("NFS: change_attr change on server for file %s/%ld\n", inode->i_sb->s_id, inode->i_ino); /* Could it be a race with writeback? */ @@ -1790,7 +1790,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) if (S_ISDIR(inode->i_mode)) nfs_force_lookup_revalidate(inode); } - inode->i_version = fattr->change_attr; + inode_set_iversion_raw(inode, fattr->change_attr); } } else { nfsi->cache_validity |= save_cache_validity; diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 5ab17fd..8357ff6 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -10,7 +10,7 @@ #include <linux/nfs_page.h> #include <linux/wait_bit.h> -#define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS) +#define NFS_MS_MASK (SB_RDONLY|SB_NOSUID|SB_NODEV|SB_NOEXEC|SB_SYNCHRONOUS) extern const struct export_operations nfs_export_ops; diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 12bbab0..65a7e5d 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -404,15 +404,19 @@ struct nfs_client *nfs4_init_client(struct nfs_client *clp, if (error < 0) goto error; - if (!nfs4_has_session(clp)) - nfs_mark_client_ready(clp, NFS_CS_READY); - error = nfs4_discover_server_trunking(clp, &old); if (error < 0) goto error; - if (clp != old) + if (clp != old) { clp->cl_preserve_clid = true; + /* + * Mark the client as having failed initialization so other + * processes walking the nfs_client_list in nfs_match_client() + * won't try to use it. + */ + nfs_mark_client_ready(clp, -EPERM); + } nfs_put_client(clp); clear_bit(NFS_CS_TSM_POSSIBLE, &clp->cl_flags); return old; @@ -539,6 +543,9 @@ int nfs40_walk_client_list(struct nfs_client *new, spin_lock(&nn->nfs_client_lock); list_for_each_entry(pos, &nn->nfs_client_list, cl_share_link) { + if (pos == new) + goto found; + status = nfs4_match_client(pos, new, &prev, nn); if (status < 0) goto out_unlock; @@ -559,6 +566,7 @@ int nfs40_walk_client_list(struct nfs_client *new, * way that a SETCLIENTID_CONFIRM to pos can succeed is * if new and pos point to the same server: */ +found: refcount_inc(&pos->cl_count); spin_unlock(&nn->nfs_client_lock); @@ -572,6 +580,7 @@ int nfs40_walk_client_list(struct nfs_client *new, case 0: nfs4_swap_callback_idents(pos, new); pos->cl_confirm = new->cl_confirm; + nfs_mark_client_ready(pos, NFS_CS_READY); prev = NULL; *result = pos; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 56fa5a1..17a03f2 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -54,6 +54,7 @@ #include <linux/xattr.h> #include <linux/utsname.h> #include <linux/freezer.h> +#include <linux/iversion.h> #include "nfs4_fs.h" #include "delegation.h" @@ -1045,16 +1046,16 @@ static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo, spin_lock(&dir->i_lock); nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA; - if (cinfo->atomic && cinfo->before == dir->i_version) { + if (cinfo->atomic && cinfo->before == inode_peek_iversion_raw(dir)) { nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE; nfsi->attrtimeo_timestamp = jiffies; } else { nfs_force_lookup_revalidate(dir); - if (cinfo->before != dir->i_version) + if (cinfo->before != inode_peek_iversion_raw(dir)) nfsi->cache_validity |= NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL; } - dir->i_version = cinfo->after; + inode_set_iversion_raw(dir, cinfo->after); nfsi->read_cache_jiffies = timestamp; nfsi->attr_gencount = nfs_inc_attr_generation_counter(); nfs_fscache_invalidate(dir); @@ -2454,7 +2455,8 @@ static int _nfs4_proc_open(struct nfs4_opendata *data) data->file_created = true; else if (o_res->cinfo.before != o_res->cinfo.after) data->file_created = true; - if (data->file_created || dir->i_version != o_res->cinfo.after) + if (data->file_created || + inode_peek_iversion_raw(dir) != o_res->cinfo.after) update_changeattr(dir, &o_res->cinfo, o_res->f_attr->time_start); } diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 54fd56d..e4f4a09 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -71,8 +71,8 @@ const nfs4_stateid zero_stateid = { }; const nfs4_stateid invalid_stateid = { { - .seqid = cpu_to_be32(0xffffffffU), - .other = { 0 }, + /* Funky initialiser keeps older gcc versions happy */ + .data = { 0xff, 0xff, 0xff, 0xff, 0 }, }, .type = NFS4_INVALID_STATEID_TYPE, }; diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h index 093290c..610d89d 100644 --- a/fs/nfs/nfstrace.h +++ b/fs/nfs/nfstrace.h @@ -9,6 +9,7 @@ #define _TRACE_NFS_H #include <linux/tracepoint.h> +#include <linux/iversion.h> #define nfs_show_file_type(ftype) \ __print_symbolic(ftype, \ @@ -61,7 +62,7 @@ DECLARE_EVENT_CLASS(nfs_inode_event, __entry->dev = inode->i_sb->s_dev; __entry->fileid = nfsi->fileid; __entry->fhandle = nfs_fhandle_hash(&nfsi->fh); - __entry->version = inode->i_version; + __entry->version = inode_peek_iversion_raw(inode); ), TP_printk( @@ -100,7 +101,7 @@ DECLARE_EVENT_CLASS(nfs_inode_event_done, __entry->fileid = nfsi->fileid; __entry->fhandle = nfs_fhandle_hash(&nfsi->fh); __entry->type = nfs_umode_to_dtype(inode->i_mode); - __entry->version = inode->i_version; + __entry->version = inode_peek_iversion_raw(inode); __entry->size = i_size_read(inode); __entry->nfsi_flags = nfsi->flags; __entry->cache_validity = nfsi->cache_validity; diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 43cadb2..29bacdc 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -813,9 +813,9 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root) */ seq_printf(m, "\n\topts:\t"); seq_puts(m, sb_rdonly(root->d_sb) ? "ro" : "rw"); - seq_puts(m, root->d_sb->s_flags & MS_SYNCHRONOUS ? ",sync" : ""); - seq_puts(m, root->d_sb->s_flags & MS_NOATIME ? ",noatime" : ""); - seq_puts(m, root->d_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : ""); + seq_puts(m, root->d_sb->s_flags & SB_SYNCHRONOUS ? ",sync" : ""); + seq_puts(m, root->d_sb->s_flags & SB_NOATIME ? ",noatime" : ""); + seq_puts(m, root->d_sb->s_flags & SB_NODIRATIME ? ",nodiratime" : ""); nfs_show_mount_options(m, nfss, 1); seq_printf(m, "\n\tage:\t%lu", (jiffies - nfss->mount_time) / HZ); @@ -2296,11 +2296,11 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data) /* * noac is a special case. It implies -o sync, but that's not * necessarily reflected in the mtab options. do_remount_sb - * will clear MS_SYNCHRONOUS if -o sync wasn't specified in the + * will clear SB_SYNCHRONOUS if -o sync wasn't specified in the * remount options, so we have to explicitly reset it. */ if (data->flags & NFS_MOUNT_NOAC) - *flags |= MS_SYNCHRONOUS; + *flags |= SB_SYNCHRONOUS; /* compare new mount options with old ones */ error = nfs_compare_remount_data(nfss, data); @@ -2349,7 +2349,7 @@ void nfs_fill_super(struct super_block *sb, struct nfs_mount_info *mount_info) /* The VFS shouldn't apply the umask to mode bits. We will do * so ourselves when necessary. */ - sb->s_flags |= MS_POSIXACL; + sb->s_flags |= SB_POSIXACL; sb->s_time_gran = 1; sb->s_export_op = &nfs_export_ops; } @@ -2379,7 +2379,7 @@ static void nfs_clone_super(struct super_block *sb, /* The VFS shouldn't apply the umask to mode bits. We will do * so ourselves when necessary. */ - sb->s_flags |= MS_POSIXACL; + sb->s_flags |= SB_POSIXACL; } nfs_initialise_sb(sb); @@ -2600,11 +2600,11 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server, /* -o noac implies -o sync */ if (server->flags & NFS_MOUNT_NOAC) - sb_mntdata.mntflags |= MS_SYNCHRONOUS; + sb_mntdata.mntflags |= SB_SYNCHRONOUS; if (mount_info->cloned != NULL && mount_info->cloned->sb != NULL) - if (mount_info->cloned->sb->s_flags & MS_SYNCHRONOUS) - sb_mntdata.mntflags |= MS_SYNCHRONOUS; + if (mount_info->cloned->sb->s_flags & SB_SYNCHRONOUS) + sb_mntdata.mntflags |= SB_SYNCHRONOUS; /* Get a superblock - note that we may end up sharing one that already exists */ s = sget(nfs_mod->nfs_fs, compare_super, nfs_set_super, flags, &sb_mntdata); @@ -2641,7 +2641,7 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server, if (error) goto error_splat_root; - s->s_flags |= MS_ACTIVE; + s->s_flags |= SB_ACTIVE; out: return mntroot; diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 5b5f464..12b2d47 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -23,6 +23,7 @@ #include <linux/export.h> #include <linux/freezer.h> #include <linux/wait.h> +#include <linux/iversion.h> #include <linux/uaccess.h> @@ -753,11 +754,8 @@ static void nfs_inode_add_request(struct inode *inode, struct nfs_page *req) */ spin_lock(&mapping->private_lock); if (!nfs_have_writebacks(inode) && - NFS_PROTO(inode)->have_delegation(inode, FMODE_WRITE)) { - spin_lock(&inode->i_lock); - inode->i_version++; - spin_unlock(&inode->i_lock); - } + NFS_PROTO(inode)->have_delegation(inode, FMODE_WRITE)) + inode_inc_iversion_raw(inode); if (likely(!PageSwapCache(req->wb_page))) { set_bit(PG_MAPPED, &req->wb_flags); SetPagePrivate(req->wb_page); @@ -1890,6 +1888,8 @@ int nfs_commit_inode(struct inode *inode, int how) if (res) error = nfs_generic_commit_list(inode, &head, how, &cinfo); nfs_commit_end(cinfo.mds); + if (res == 0) + return res; if (error < 0) goto out_error; if (!may_wait) |