From d055a1fec37ec84fd3e87d48a0e766a9ff8369c4 Mon Sep 17 00:00:00 2001
From: Fam Zheng <famz@redhat.com>
Date: Thu, 26 Sep 2013 19:55:33 +0800
Subject: [PATCH] block: use DIV_ROUND_UP in bdrv_co_do_readv

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block.c b/block.c
index 4833b37ab8..93e113ad7c 100644
--- a/block.c
+++ b/block.c
@@ -2653,7 +2653,7 @@ static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs,
             goto out;
         }
 
-        total_sectors = (len + BDRV_SECTOR_SIZE - 1) >> BDRV_SECTOR_BITS;
+        total_sectors = DIV_ROUND_UP(len, BDRV_SECTOR_SIZE);
         max_nb_sectors = MAX(0, total_sectors - sector_num);
         if (max_nb_sectors > 0) {
             ret = drv->bdrv_co_readv(bs, sector_num,