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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-22 00:22:44 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2013-06-29 10:57:36 +0200
commitda53be12bbb4fabbe2e9f6f908de0cf478b5161d (patch)
treea0436fb462a7b16c82e58336e17c55b814f7be6b /fs/hfs
parentminix: bug widening a binary "not" operation (diff)
downloadlinux-da53be12bbb4fabbe2e9f6f908de0cf478b5161d.tar.xz
linux-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/hfs')
-rw-r--r--fs/hfs/hfs_fs.h7
-rw-r--r--fs/hfs/string.c6
2 files changed, 4 insertions, 9 deletions
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index a73b11839a41..0524cda47a6e 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -229,13 +229,10 @@ extern int hfs_part_find(struct super_block *, sector_t *, sector_t *);
/* string.c */
extern const struct dentry_operations hfs_dentry_operations;
-extern int hfs_hash_dentry(const struct dentry *, const struct inode *,
- struct qstr *);
+extern int hfs_hash_dentry(const struct dentry *, struct qstr *);
extern int hfs_strcmp(const unsigned char *, unsigned int,
const unsigned char *, unsigned int);
-extern int hfs_compare_dentry(const struct dentry *parent,
- const struct inode *pinode,
- const struct dentry *dentry, const struct inode *inode,
+extern int hfs_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name);
/* trans.c */
diff --git a/fs/hfs/string.c b/fs/hfs/string.c
index 495a976a3cc9..85b610c3909f 100644
--- a/fs/hfs/string.c
+++ b/fs/hfs/string.c
@@ -51,8 +51,7 @@ static unsigned char caseorder[256] = {
/*
* Hash a string to an integer in a case-independent way
*/
-int hfs_hash_dentry(const struct dentry *dentry, const struct inode *inode,
- struct qstr *this)
+int hfs_hash_dentry(const struct dentry *dentry, struct qstr *this)
{
const unsigned char *name = this->name;
unsigned int hash, len = this->len;
@@ -93,8 +92,7 @@ int hfs_strcmp(const unsigned char *s1, unsigned int len1,
* Test for equality of two strings in the HFS filename character ordering.
* return 1 on failure and 0 on success
*/
-int hfs_compare_dentry(const struct dentry *parent, const struct inode *pinode,
- const struct dentry *dentry, const struct inode *inode,
+int hfs_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name)
{
const unsigned char *n1, *n2;