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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 16:10:49 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 16:10:49 -0800
commitcbfe0de303a55ed96d8831c2d5f56f8131cd6612 (patch)
treeb327762303c6a015421e4077e7c713b8a47a5e0e /fs/ceph/dir.c
parent8322b6fddfd2cee41a7732284e5f04750511f4b2 (diff)
parentba00410b8131b23edfb0e09f8b6dd26c8eb621fb (diff)
downloadop-kernel-dev-cbfe0de303a55ed96d8831c2d5f56f8131cd6612.zip
op-kernel-dev-cbfe0de303a55ed96d8831c2d5f56f8131cd6612.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS changes from Al Viro: "First pile out of several (there _definitely_ will be more). Stuff in this one: - unification of d_splice_alias()/d_materialize_unique() - iov_iter rewrite - killing a bunch of ->f_path.dentry users (and f_dentry macro). Getting that completed will make life much simpler for unionmount/overlayfs, since then we'll be able to limit the places sensitive to file _dentry_ to reasonably few. Which allows to have file_inode(file) pointing to inode in a covered layer, with dentry pointing to (negative) dentry in union one. Still not complete, but much closer now. - crapectomy in lustre (dead code removal, mostly) - "let's make seq_printf return nothing" preparations - assorted cleanups and fixes There _definitely_ will be more piles" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits) copy_from_iter_nocache() new helper: iov_iter_kvec() csum_and_copy_..._iter() iov_iter.c: handle ITER_KVEC directly iov_iter.c: convert copy_to_iter() to iterate_and_advance iov_iter.c: convert copy_from_iter() to iterate_and_advance iov_iter.c: get rid of bvec_copy_page_{to,from}_iter() iov_iter.c: convert iov_iter_zero() to iterate_and_advance iov_iter.c: convert iov_iter_get_pages_alloc() to iterate_all_kinds iov_iter.c: convert iov_iter_get_pages() to iterate_all_kinds iov_iter.c: convert iov_iter_npages() to iterate_all_kinds iov_iter.c: iterate_and_advance iov_iter.c: macros for iterating over iov_iter kill f_dentry macro dcache: fix kmemcheck warning in switch_names new helper: audit_file() nfsd_vfs_write(): use file_inode() ncpfs: use file_inode() kill f_dentry uses lockd: get rid of ->f_path.dentry->d_sb ...
Diffstat (limited to 'fs/ceph/dir.c')
-rw-r--r--fs/ceph/dir.c56
1 files changed, 26 insertions, 30 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index e6d63f8..681a853 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -111,7 +111,7 @@ static int fpos_cmp(loff_t l, loff_t r)
/*
* When possible, we try to satisfy a readdir by peeking at the
* dcache. We make this work by carefully ordering dentries on
- * d_u.d_child when we initially get results back from the MDS, and
+ * d_child when we initially get results back from the MDS, and
* falling back to a "normal" sync readdir if any dentries in the dir
* are dropped.
*
@@ -123,7 +123,7 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx,
u32 shared_gen)
{
struct ceph_file_info *fi = file->private_data;
- struct dentry *parent = file->f_dentry;
+ struct dentry *parent = file->f_path.dentry;
struct inode *dir = parent->d_inode;
struct list_head *p;
struct dentry *dentry, *last;
@@ -147,11 +147,11 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx,
p = parent->d_subdirs.prev;
dout(" initial p %p/%p\n", p->prev, p->next);
} else {
- p = last->d_u.d_child.prev;
+ p = last->d_child.prev;
}
more:
- dentry = list_entry(p, struct dentry, d_u.d_child);
+ dentry = list_entry(p, struct dentry, d_child);
di = ceph_dentry(dentry);
while (1) {
dout(" p %p/%p %s d_subdirs %p/%p\n", p->prev, p->next,
@@ -168,13 +168,13 @@ more:
ceph_ino(dentry->d_inode) != CEPH_INO_CEPH &&
fpos_cmp(ctx->pos, di->offset) <= 0)
break;
- dout(" skipping %p %.*s at %llu (%llu)%s%s\n", dentry,
- dentry->d_name.len, dentry->d_name.name, di->offset,
+ dout(" skipping %p %pd at %llu (%llu)%s%s\n", dentry,
+ dentry, di->offset,
ctx->pos, d_unhashed(dentry) ? " unhashed" : "",
!dentry->d_inode ? " null" : "");
spin_unlock(&dentry->d_lock);
p = p->prev;
- dentry = list_entry(p, struct dentry, d_u.d_child);
+ dentry = list_entry(p, struct dentry, d_child);
di = ceph_dentry(dentry);
}
@@ -190,8 +190,8 @@ more:
goto out;
}
- dout(" %llu (%llu) dentry %p %.*s %p\n", di->offset, ctx->pos,
- dentry, dentry->d_name.len, dentry->d_name.name, dentry->d_inode);
+ dout(" %llu (%llu) dentry %p %pd %p\n", di->offset, ctx->pos,
+ dentry, dentry, dentry->d_inode);
if (!dir_emit(ctx, dentry->d_name.name,
dentry->d_name.len,
ceph_translate_ino(dentry->d_sb, dentry->d_inode->i_ino),
@@ -274,7 +274,7 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx)
off = 1;
}
if (ctx->pos == 1) {
- ino_t ino = parent_ino(file->f_dentry);
+ ino_t ino = parent_ino(file->f_path.dentry);
dout("readdir off 1 -> '..'\n");
if (!dir_emit(ctx, "..", 2,
ceph_translate_ino(inode->i_sb, ino),
@@ -337,7 +337,7 @@ more:
}
req->r_inode = inode;
ihold(inode);
- req->r_dentry = dget(file->f_dentry);
+ req->r_dentry = dget(file->f_path.dentry);
/* hints to request -> mds selection code */
req->r_direct_mode = USE_AUTH_MDS;
req->r_direct_hash = ceph_frag_value(frag);
@@ -538,8 +538,8 @@ int ceph_handle_snapdir(struct ceph_mds_request *req,
strcmp(dentry->d_name.name,
fsc->mount_options->snapdir_name) == 0) {
struct inode *inode = ceph_get_snapdir(parent);
- dout("ENOENT on snapdir %p '%.*s', linking to snapdir %p\n",
- dentry, dentry->d_name.len, dentry->d_name.name, inode);
+ dout("ENOENT on snapdir %p '%pd', linking to snapdir %p\n",
+ dentry, dentry, inode);
BUG_ON(!d_unhashed(dentry));
d_add(dentry, inode);
err = 0;
@@ -603,8 +603,8 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry,
int op;
int err;
- dout("lookup %p dentry %p '%.*s'\n",
- dir, dentry, dentry->d_name.len, dentry->d_name.name);
+ dout("lookup %p dentry %p '%pd'\n",
+ dir, dentry, dentry);
if (dentry->d_name.len > NAME_MAX)
return ERR_PTR(-ENAMETOOLONG);
@@ -774,8 +774,8 @@ static int ceph_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
if (ceph_snap(dir) == CEPH_SNAPDIR) {
/* mkdir .snap/foo is a MKSNAP */
op = CEPH_MDS_OP_MKSNAP;
- dout("mksnap dir %p snap '%.*s' dn %p\n", dir,
- dentry->d_name.len, dentry->d_name.name, dentry);
+ dout("mksnap dir %p snap '%pd' dn %p\n", dir,
+ dentry, dentry);
} else if (ceph_snap(dir) == CEPH_NOSNAP) {
dout("mkdir dir %p dn %p mode 0%ho\n", dir, dentry, mode);
op = CEPH_MDS_OP_MKDIR;
@@ -888,8 +888,7 @@ static int ceph_unlink(struct inode *dir, struct dentry *dentry)
if (ceph_snap(dir) == CEPH_SNAPDIR) {
/* rmdir .snap/foo is RMSNAP */
- dout("rmsnap dir %p '%.*s' dn %p\n", dir, dentry->d_name.len,
- dentry->d_name.name, dentry);
+ dout("rmsnap dir %p '%pd' dn %p\n", dir, dentry, dentry);
op = CEPH_MDS_OP_RMSNAP;
} else if (ceph_snap(dir) == CEPH_NOSNAP) {
dout("unlink/rmdir dir %p dn %p inode %p\n",
@@ -1063,16 +1062,15 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
if (flags & LOOKUP_RCU)
return -ECHILD;
- dout("d_revalidate %p '%.*s' inode %p offset %lld\n", dentry,
- dentry->d_name.len, dentry->d_name.name, dentry->d_inode,
- ceph_dentry(dentry)->offset);
+ dout("d_revalidate %p '%pd' inode %p offset %lld\n", dentry,
+ dentry, dentry->d_inode, ceph_dentry(dentry)->offset);
dir = ceph_get_dentry_parent_inode(dentry);
/* always trust cached snapped dentries, snapdir dentry */
if (ceph_snap(dir) != CEPH_NOSNAP) {
- dout("d_revalidate %p '%.*s' inode %p is SNAPPED\n", dentry,
- dentry->d_name.len, dentry->d_name.name, dentry->d_inode);
+ dout("d_revalidate %p '%pd' inode %p is SNAPPED\n", dentry,
+ dentry, dentry->d_inode);
valid = 1;
} else if (dentry->d_inode &&
ceph_snap(dentry->d_inode) == CEPH_SNAPDIR) {
@@ -1265,8 +1263,7 @@ void ceph_dentry_lru_add(struct dentry *dn)
struct ceph_dentry_info *di = ceph_dentry(dn);
struct ceph_mds_client *mdsc;
- dout("dentry_lru_add %p %p '%.*s'\n", di, dn,
- dn->d_name.len, dn->d_name.name);
+ dout("dentry_lru_add %p %p '%pd'\n", di, dn, dn);
mdsc = ceph_sb_to_client(dn->d_sb)->mdsc;
spin_lock(&mdsc->dentry_lru_lock);
list_add_tail(&di->lru, &mdsc->dentry_lru);
@@ -1279,8 +1276,8 @@ void ceph_dentry_lru_touch(struct dentry *dn)
struct ceph_dentry_info *di = ceph_dentry(dn);
struct ceph_mds_client *mdsc;
- dout("dentry_lru_touch %p %p '%.*s' (offset %lld)\n", di, dn,
- dn->d_name.len, dn->d_name.name, di->offset);
+ dout("dentry_lru_touch %p %p '%pd' (offset %lld)\n", di, dn, dn,
+ di->offset);
mdsc = ceph_sb_to_client(dn->d_sb)->mdsc;
spin_lock(&mdsc->dentry_lru_lock);
list_move_tail(&di->lru, &mdsc->dentry_lru);
@@ -1292,8 +1289,7 @@ void ceph_dentry_lru_del(struct dentry *dn)
struct ceph_dentry_info *di = ceph_dentry(dn);
struct ceph_mds_client *mdsc;
- dout("dentry_lru_del %p %p '%.*s'\n", di, dn,
- dn->d_name.len, dn->d_name.name);
+ dout("dentry_lru_del %p %p '%pd'\n", di, dn, dn);
mdsc = ceph_sb_to_client(dn->d_sb)->mdsc;
spin_lock(&mdsc->dentry_lru_lock);
list_del_init(&di->lru);
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