motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-04 08:13:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

block/qcow2: implement .bdrv_co_preadv_part

Browse source 
Implement and use new interface to get rid of hd_qiov.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190604161514.262241-12-vsementsov@virtuozzo.com
Message-Id: <20190604161514.262241-12-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-06-04 19:15:13 +03:00 • committed by Stefan Hajnoczi
parent 00721a3529
commit df893d25ce
2 changed files with 25 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

5
block/qcow2-cluster.c
View file

@ -452,8 +452,9 @@ static int coroutine_fn do_perform_cow_read(BlockDriverState *bs,
* interface. This avoids double I/O throttling and request tracking,
* which can lead to deadlock when block layer copy-on-read is enabled.
*/
ret = bs->drv->bdrv_co_preadv(bs, src_cluster_offset + offset_in_cluster,
qiov->size, qiov, 0);
ret = bs->drv->bdrv_co_preadv_part(bs,
src_cluster_offset + offset_in_cluster,
qiov->size, qiov, 0, 0);
if (ret < 0) {
return ret;
}