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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 /fs/sysv
parent642b704cd7a29be0b8900971eb525086c1c995b7 (diff)
downloadlwn-da53be12bbb4fabbe2e9f6f908de0cf478b5161d.tar.gz
lwn-da53be12bbb4fabbe2e9f6f908de0cf478b5161d.zip
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 'fs/sysv')
-rw-r--r--fs/sysv/namei.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index 1c0d5f264767..731b2bbcaab3 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -27,8 +27,7 @@ static int add_nondir(struct dentry *dentry, struct inode *inode)
return err;
}
-static int sysv_hash(const struct dentry *dentry, const struct inode *inode,
- struct qstr *qstr)
+static int sysv_hash(const struct dentry *dentry, struct qstr *qstr)
{
/* Truncate the name in place, avoids having to define a compare
function. */