From: Fam Zheng <famz@redhat.com>
Date: Thu, 26 Sep 2013 11:55:33 +0000 (+0800)
Subject: block: use DIV_ROUND_UP in bdrv_co_do_readv
X-Git-Tag: v1.7.0-rc0~84^2~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d055a1fec37ec84fd3e87d48a0e766a9ff8369c4;p=thirdparty%2Fqemu.git

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>
---

diff --git a/block.c b/block.c
index 4833b37ab80..93e113ad7c0 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,