[PATCH] md/raid10:using conf->chunk_mask instead "chunk_secotrs - 1"

["majianpeng" <majianpeng@xxxxxxxxx>]

>From 2c637bca4e50e87f7b4e6b3abce27f8cd935fd92 Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@xxxxxxxxx>
Date: Tue, 17 Apr 2012 16:47:07 +0800
Subject: [PATCH] md/raid10:using conf->chunk_mask instead "chunk_secotrs -
 1".


Signed-off-by: majianpeng <majianpeng@xxxxxxxxx>
---
 drivers/md/raid10.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index c8dbb84..5734d92 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -601,7 +601,7 @@ static int raid10_mergeable_bvec(struct request_queue *q,
 	unsigned int bio_sectors = bvm->bi_size >> 9;
 
 	if (conf->near_copies < conf->raid_disks) {
-		max = (chunk_sectors - ((sector & (chunk_sectors - 1))
+		max = (chunk_sectors - ((sector & conf->chunk_mask)
 					+ bio_sectors)) << 9;
 		if (max < 0)
 			/* bio_add cannot handle a negative return */
-- 
1.7.5.4

 				
--------------
majianpeng
2012-04-17

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