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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-07 10:01:14 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-07 10:01:14 -0400 |
| commit | fe64f3283fb315e3d8f2b78785a86904a852ca82 (patch) | |
| tree | 3ab48823f0ef8b855f9b58809f09b9db2997f12e /Documentation | |
| parent | 0cbbc422d56668528f6efd1234fe908010284082 (diff) | |
| parent | db20a8925bc420eed033c5d91ff6afa74465e521 (diff) | |
| download | lwn-fe64f3283fb315e3d8f2b78785a86904a852ca82.tar.gz lwn-fe64f3283fb315e3d8f2b78785a86904a852ca82.zip | |
Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
"Assorted cleanups and fixes.
In the "trivial API change" department - ->d_compare() losing 'parent'
argument"
* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
cachefiles: Fix race between inactivating and culling a cache object
9p: use clone_fid()
9p: fix braino introduced in "9p: new helper - v9fs_parent_fid()"
vfs: make dentry_needs_remove_privs() internal
vfs: remove file_needs_remove_privs()
vfs: fix deadlock in file_remove_privs() on overlayfs
get rid of 'parent' argument of ->d_compare()
cifs, msdos, vfat, hfs+: don't bother with parent in ->d_compare()
affs ->d_compare(): don't bother with ->d_inode
fold _d_rehash() and __d_rehash() together
fold dentry_rcuwalk_invalidate() into its only remaining caller
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/filesystems/Locking | 2 | ||||
| -rw-r--r-- | Documentation/filesystems/porting | 7 | ||||
| -rw-r--r-- | Documentation/filesystems/vfs.txt | 2 |
3 files changed, 9 insertions, 2 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 1b3c39a7de62..d30fb2cb5066 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -12,7 +12,7 @@ prototypes: int (*d_revalidate)(struct dentry *, unsigned int); int (*d_weak_revalidate)(struct dentry *, unsigned int); int (*d_hash)(const struct dentry *, struct qstr *); - int (*d_compare)(const struct dentry *, const struct dentry *, + int (*d_compare)(const struct dentry *, unsigned int, const char *, const struct qstr *); int (*d_delete)(struct dentry *); int (*d_init)(struct dentry *); diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index a5fb89cac615..b1bd05ea66b2 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -585,3 +585,10 @@ in your dentry operations instead. in the instances. Rationale: !@#!@# security_d_instantiate() needs to be called before we attach dentry to inode and !@#!@##!@$!$#!@#$!@$!@$ smack ->d_instantiate() uses not just ->getxattr() but ->setxattr() as well. +-- +[mandatory] + ->d_compare() doesn't get parent as a separate argument anymore. If you + used it for finding the struct super_block involved, dentry->d_sb will + work just as well; if it's something more complicated, use dentry->d_parent. + Just be careful not to assume that fetching it more than once will yield + the same value - in RCU mode it could change under you. diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index 8a196851f01d..9ace359d6cc5 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -931,7 +931,7 @@ struct dentry_operations { int (*d_revalidate)(struct dentry *, unsigned int); int (*d_weak_revalidate)(struct dentry *, unsigned int); int (*d_hash)(const struct dentry *, struct qstr *); - int (*d_compare)(const struct dentry *, const struct dentry *, + int (*d_compare)(const struct dentry *, unsigned int, const char *, const struct qstr *); int (*d_delete)(const struct dentry *); int (*d_init)(struct dentry *); |