diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2019-08-29 12:09:53 +0300 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2019-09-10 08:58:43 +0200 |
| commit | bb0c94099382b52734a4a4f3c060e90c9a2ac6cf (patch) | |
| tree | ac02b2959676479a50414ee2144fc433681526b1 /block/mirror.c | |
| parent | b70d08205b2e4044c529eefc21df2c8ab61b473b (diff) | |
job: drop job_drain
In job_finish_sync job_enter should be enough for a job to make some
progress and draining is a wrong tool for it. So use job_enter directly
here and drop job_drain with all related staff not used more.
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: John Snow <jsnow@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/mirror.c')
| -rw-r--r-- | block/mirror.c | 28 |
1 files changed, 3 insertions, 25 deletions
diff --git a/block/mirror.c b/block/mirror.c index 853e2c7510..fe984efb90 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -646,14 +646,11 @@ static int mirror_exit_common(Job *job) bdrv_ref(mirror_top_bs); bdrv_ref(target_bs); - /* Remove target parent that still uses BLK_PERM_WRITE/RESIZE before + /* + * Remove target parent that still uses BLK_PERM_WRITE/RESIZE before * inserting target_bs at s->to_replace, where we might not be able to get * these permissions. - * - * Note that blk_unref() alone doesn't necessarily drop permissions because - * we might be running nested inside mirror_drain(), which takes an extra - * reference, so use an explicit blk_set_perm() first. */ - blk_set_perm(s->target, 0, BLK_PERM_ALL, &error_abort); + */ blk_unref(s->target); s->target = NULL; @@ -1149,28 +1146,12 @@ static bool mirror_drained_poll(BlockJob *job) return !!s->in_flight; } -static void mirror_drain(BlockJob *job) -{ - MirrorBlockJob *s = container_of(job, MirrorBlockJob, common); - - /* Need to keep a reference in case blk_drain triggers execution - * of mirror_complete... - */ - if (s->target) { - BlockBackend *target = s->target; - blk_ref(target); - blk_drain(target); - blk_unref(target); - } -} - static const BlockJobDriver mirror_job_driver = { .job_driver = { .instance_size = sizeof(MirrorBlockJob), .job_type = JOB_TYPE_MIRROR, .free = block_job_free, .user_resume = block_job_user_resume, - .drain = block_job_drain, .run = mirror_run, .prepare = mirror_prepare, .abort = mirror_abort, @@ -1178,7 +1159,6 @@ static const BlockJobDriver mirror_job_driver = { .complete = mirror_complete, }, .drained_poll = mirror_drained_poll, - .drain = mirror_drain, }; static const BlockJobDriver commit_active_job_driver = { @@ -1187,7 +1167,6 @@ static const BlockJobDriver commit_active_job_driver = { .job_type = JOB_TYPE_COMMIT, .free = block_job_free, .user_resume = block_job_user_resume, - .drain = block_job_drain, .run = mirror_run, .prepare = mirror_prepare, .abort = mirror_abort, @@ -1195,7 +1174,6 @@ static const BlockJobDriver commit_active_job_driver = { .complete = mirror_complete, }, .drained_poll = mirror_drained_poll, - .drain = mirror_drain, }; static void coroutine_fn |