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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-21 15:22:44 -0700
committerAl Viro <viro@zeniv.linux.org.uk>2013-06-29 12:57:36 +0400
commitda53be12bbb4fabbe2e9f6f908de0cf478b5161d (patch)
treea0436fb462a7b16c82e58336e17c55b814f7be6b /Documentation/filesystems/Locking
parent642b704cd7a29be0b8900971eb525086c1c995b7 (diff)
downloadlinux-da53be12bbb4fabbe2e9f6f908de0cf478b5161d.tar.bz2
Don't pass inode to ->d_hash() and ->d_compare()
Instances either don't look at it at all (the majority of cases) or only want it to find the superblock (which can be had as dentry->d_sb). A few cases that want more are actually safe with dentry->d_inode - the only precaution needed is the check that it hadn't been replaced with NULL by rmdir() or by overwriting rename(), which case should be simply treated as cache miss. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'Documentation/filesystems/Locking')
-rw-r--r--Documentation/filesystems/Locking6
1 files changed, 2 insertions, 4 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index bdd82b2339d9..f94a362f408e 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -11,10 +11,8 @@ be able to use diff(1).
prototypes:
int (*d_revalidate)(struct dentry *, unsigned int);
int (*d_weak_revalidate)(struct dentry *, unsigned int);
- int (*d_hash)(const struct dentry *, const struct inode *,
- struct qstr *);
- int (*d_compare)(const struct dentry *, const struct inode *,
- const struct dentry *, const struct inode *,
+ int (*d_hash)(const struct dentry *, struct qstr *);
+ int (*d_compare)(const struct dentry *, const struct dentry *,
unsigned int, const char *, const struct qstr *);
int (*d_delete)(struct dentry *);
void (*d_release)(struct dentry *);