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block: split flags in copy_range

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Pass read flags and write flags separately. This is needed to handle
coming BDRV_REQ_NO_SERIALISING clearly in following patches.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2018-07-09 19:37:17 +03:00 • committed by Kevin Wolf
parent 999658a05e
commit 67b51fb998
11 changed files with 90 additions and 59 deletions
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2
block/backup.c
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@ -163,7 +163,7 @@ static int coroutine_fn backup_cow_with_offload(BackupBlockJob *job,
hbitmap_reset(job->copy_bitmap, start / job->cluster_size,
nr_clusters);
ret = blk_co_copy_range(blk, start, job->target, start, nbytes,
is_write_notifier ? BDRV_REQ_NO_SERIALISING : 0);
is_write_notifier ? BDRV_REQ_NO_SERIALISING : 0, 0);
if (ret < 0) {
trace_backup_do_cow_copy_range_fail(job, start, ret);
hbitmap_set(job->copy_bitmap, start / job->cluster_size,