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>

1 files changed, 2 insertions, 5 deletions

diff --git a/fs/hfsplus/unicode.c b/fs/hfsplus/unicode.c
index 2c2e47dcfdd8..e8ef121a4d8b 100644
--- a/fs/hfsplus/unicode.c
+++ b/fs/hfsplus/unicode.c
@@ -334,8 +334,7 @@ int hfsplus_asc2uni(struct super_block *sb,
  * Composed unicode characters are decomposed and case-folding is performed
  * if the appropriate bits are (un)set on the superblock.
  */
-int hfsplus_hash_dentry(const struct dentry *dentry, const struct inode *inode,
-		struct qstr *str)
+int hfsplus_hash_dentry(const struct dentry *dentry, struct qstr *str)
 {
 	struct super_block *sb = dentry->d_sb;
 	const char *astr;
@@ -386,9 +385,7 @@ int hfsplus_hash_dentry(const struct dentry *dentry, const struct inode *inode,
  * Composed unicode characters are decomposed and case-folding is performed
  * if the appropriate bits are (un)set on the superblock.
  */
-int hfsplus_compare_dentry(const struct dentry *parent,
-		const struct inode *pinode,
-		const struct dentry *dentry, const struct inode *inode,
+int hfsplus_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
 		unsigned int len, const char *str, const struct qstr *name)
 {
 	struct super_block *sb = parent->d_sb;