From f132c5be05e407a99cf582347a2ae0120acd3ad7 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Thu, 22 Mar 2012 21:59:52 +0000
Subject: Fix full_name_hash() behaviour when length is a multiple of 8

We want it to match what hash_name() is doing, which means extra
multiply by 9 in this case...

Reported-and-Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/namei.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'fs/namei.c')

diff --git a/fs/namei.c b/fs/namei.c
index a94a7f9a03ea..bd313d680d34 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1439,10 +1439,10 @@ unsigned int full_name_hash(const unsigned char *name, unsigned int len)
 
 	for (;;) {
 		a = *(unsigned long *)name;
-		hash *= 9;
 		if (len < sizeof(unsigned long))
 			break;
 		hash += a;
+		hash *= 9;
 		name += sizeof(unsigned long);
 		len -= sizeof(unsigned long);
 		if (!len)
-- 
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