md:Add judgement bb->unacked_exist in function

["kedacomkernel" <kedacomkernel@xxxxxxxxx>]

>From 7054a9dcd23a721e3c3dd2ceb8f1243187ea5cc4 Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@xxxxxxxxx>
Date: Thu, 8 Mar 2012 17:31:32 +0800
Subject: [PATCH] md:Add judgement bb->unacked_exist in function
 md_ack_all_badblocks().


Signed-off-by: majianpeng <majianpeng@xxxxxxxxx>
---
 drivers/md/md.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index ce88755..7c57d0f 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -8040,7 +8040,7 @@ void md_ack_all_badblocks(struct badblocks *bb)
 		return;
 	write_seqlock_irq(&bb->lock);
 
-	if (bb->changed == 0) {
+	if (bb->changed == 0 && bb->unacked_exist) {
 		u64 *p = bb->page;
 		int i;
 		for (i = 0; i < bb->count ; i++) {
-- 
1.7.5.4

 				
--------------
kedacomkernel
2012-03-08

--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html