vfs: fix bad hashing of dentries

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / namei.c

diff --git a/fs/namei.c b/fs/namei.c
index 3cdf7ac..d5a4fae 100644 (file)
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -34,6 +34,7 @@
 #include <linux/device_cgroup.h>
 #include <linux/fs_struct.h>
 #include <linux/posix_acl.h>
+#include <linux/hash.h>
 #include <asm/uaccess.h>
 
 #include "internal.h"
@@ -1624,8 +1625,7 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd)
 
 static inline unsigned int fold_hash(unsigned long hash)
 {
-       hash += hash >> (8*sizeof(int));
-       return hash;
+       return hash_64(hash, 32);
 }
 
 #else  /* 32-bit case */