From: Fam Zheng <f...@redhat.com> Signed-off-by: Fam Zheng <f...@redhat.com> Reviewed-by: Eric Blake <ebl...@redhat.com> Signed-off-by: Kevin Wolf <kw...@redhat.com> --- block.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block.c b/block.c index 4833b37..93e113a 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, -- 1.8.1.4