From 4c8a6fed53c2c10604a7c762d1bd31388709c4ac Mon Sep 17 00:00:00 2001
From: Kirill Korotaev <dev@openvz.org>
Date: Mon, 26 Feb 2007 01:48:36 +0100
Subject: [PATCH] fix ext3 block bitmap leakage
This patch fixes ext3 block bitmap leakage,
which leads to the following fsck messages on
_healthy_ filesystem:
Block bitmap differences: -64159 -73707
All kernels up to 2.6.17 have this bug.
Found by
Vasily Averin <vvs@sw.ru> and Andrey Savochkin <saw@sawoct.com>
Test case triggered the issue was created by
Dmitry Monakhov <dmonakhov@sw.ru>
Signed-Off-By: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
---
fs/ext3/inode.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 4fafef3c511fa..ef05ecef0d910 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -516,6 +516,7 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
branch[0].key = cpu_to_le32(parent);
if (parent) {
+ keys = 1;
for (n = 1; n < num; n++) {
struct buffer_head *bh;
/* Allocate the next block */
--
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