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/jfs/namei.c b/fs/jfs/namei.c
index 89186b7b9002..8b19027291d6 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1538,8 +1538,7 @@ const struct file_operations jfs_dir_operations = {
         .llseek         = generic_file_llseek,
 };
 
-static int jfs_ci_hash(const struct dentry *dir, const struct inode *inode,
-                struct qstr *this)
+static int jfs_ci_hash(const struct dentry *dir, struct qstr *this)
 {
         unsigned long hash;
         int i;
@@ -1552,9 +1551,7 @@ static int jfs_ci_hash(const struct dentry *dir, const struct inode *inode,
         return 0;
 }
 
-static int jfs_ci_compare(const struct dentry *parent,
-                const struct inode *pinode,
-                const struct dentry *dentry, const struct inode *inode,
+static int jfs_ci_compare(const struct dentry *parent, const struct dentry *dentry,
                 unsigned int len, const char *str, const struct qstr *name)
 {
         int i, result = 1;