From: Robin Dong <sanbai@taobao.com>
Date: Wed, 26 Oct 2011 12:48:54 +0000 (-0400)
Subject: ext4: fix a wrong comment in __mb_check_buddy()
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=0a10da73e1fa6fb9b45f1166011ff3b04c27c010;p=deliverable%2Flinux.git

ext4: fix a wrong comment in __mb_check_buddy()

The comment says the bit should be 0, but the after code assert the
bit to be 1.  This makes people confused, so fix it.

Signed-off-by: Robin Dong <sanbai@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 2bb1ddc5c30b..e2d8be8f28bf 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -581,7 +581,7 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file,
 				continue;
 			}
 
-			/* both bits in buddy2 must be 0 */
+			/* both bits in buddy2 must be 1 */
 			MB_CHECK_ASSERT(mb_test_bit(i << 1, buddy2));
 			MB_CHECK_ASSERT(mb_test_bit((i << 1) + 1, buddy2));