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block: use DIV_ROUND_UP in bdrv_co_do_readv

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Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Fam Zheng 2013-09-26 19:55:33 +08:00 committed by Kevin Wolf
parent c01dbccbad
commit d055a1fec3
1 changed files with 1 additions and 1 deletions
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2
block.c
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@ -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,