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>
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index 141aee3..a8766b8 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -45,8 +45,8 @@
* So we need to perform a case-sensitive match on part 1 and a
* case-insensitive match on part 2.
*/
-static int efivarfs_d_compare(const struct dentry *parent, const struct inode *pinode,
- const struct dentry *dentry, const struct inode *inode,
+static int efivarfs_d_compare(const struct dentry *parent,
+ const struct dentry *dentry,
unsigned int len, const char *str,
const struct qstr *name)
{
@@ -63,8 +63,7 @@
return strncasecmp(name->name + guid, str + guid, EFI_VARIABLE_GUID_LEN);
}
-static int efivarfs_d_hash(const struct dentry *dentry,
- const struct inode *inode, struct qstr *qstr)
+static int efivarfs_d_hash(const struct dentry *dentry, struct qstr *qstr)
{
unsigned long hash = init_name_hash();
const unsigned char *s = qstr->name;
@@ -108,7 +107,7 @@
q.name = name;
q.len = strlen(name);
- err = efivarfs_d_hash(NULL, NULL, &q);
+ err = efivarfs_d_hash(NULL, &q);
if (err)
return ERR_PTR(err);