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mirror_qemu
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mirror: Stop active mirroring after force-cancel 

Once the mirror job is force-cancelled (job_is_cancelled() is true), we
should not generate new I/O requests.  This applies to active mirroring,
too, so stop it once the job is cancelled.

(We must still forward all I/O requests to the source, though, of
course, but those are not really I/O requests generated by the job, so
this is fine.)

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-12-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
master
Hanna Reitz 2021-10-06 17:19:38 +02:00 committed by Vladimir Sementsov-Ogievskiy
parent 4feeec7e23
commit 9b230ef93e
1 changed files with 2 additions and 0 deletions
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2
block/mirror.c
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@ -1425,6 +1425,7 @@ static int coroutine_fn bdrv_mirror_top_do_write(BlockDriverState *bs,
bool copy_to_target;
copy_to_target = s->job->ret >= 0 &&
!job_is_cancelled(&s->job->common.job) &&
s->job->copy_mode == MIRROR_COPY_MODE_WRITE_BLOCKING;
if (copy_to_target) {
@ -1473,6 +1474,7 @@ static int coroutine_fn bdrv_mirror_top_pwritev(BlockDriverState *bs,
bool copy_to_target;
copy_to_target = s->job->ret >= 0 &&
!job_is_cancelled(&s->job->common.job) &&
s->job->copy_mode == MIRROR_COPY_MODE_WRITE_BLOCKING;
if (copy_to_target) {