From e6ec87704df8ef2c30a0f7115b4a44e81834f3a9 Mon Sep 17 00:00:00 2001
From: Shaohua Li <shaohua.li@intel.com>
Date: Thu, 11 Nov 2010 14:05:17 -0800
Subject: [PATCH] --- yaml --- r: 221723 b: refs/heads/master c:
 1dce071e18b7264457d17c0dec4c7e430bfaee7d h: refs/heads/master i:   221721:
 4d45d87beaca930503d2466c143598440e192f4e   221719:
 51a2fc3071ef5ed8c392d954c7ec81a6b36e2377 v: v3

---
 [refs]            | 2 +-
 trunk/mm/vmscan.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 7dc896160a74..dbb1036c74c1 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 38715258aa2e8cd94bd4aafadc544e5104efd551
+refs/heads/master: 1dce071e18b7264457d17c0dec4c7e430bfaee7d
diff --git a/trunk/mm/vmscan.c b/trunk/mm/vmscan.c
index b8a6fdc21312..d31d7ce52c0e 100644
--- a/trunk/mm/vmscan.c
+++ b/trunk/mm/vmscan.c
@@ -913,7 +913,7 @@ static unsigned long shrink_page_list(struct list_head *page_list,
 	 * back off and wait for congestion to clear because further reclaim
 	 * will encounter the same problem
 	 */
-	if (nr_dirty == nr_congested)
+	if (nr_dirty == nr_congested && nr_dirty != 0)
 		zone_set_flag(zone, ZONE_CONGESTED);
 
 	free_page_list(&free_pages);