[PULL 38/50] block/mirror.c: use of job helpers in drivers

Kevin Wolf posted 50 patches 2 years, 5 months ago
Maintainers: Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, John Snow <jsnow@redhat.com>, Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>, Fam Zheng <fam@euphon.net>, Ronnie Sahlberg <ronniesahlberg@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>, Peter Lieven <pl@kamp.de>, Eric Blake <eblake@redhat.com>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, "Denis V. Lunev" <den@openvz.org>, Alberto Garcia <berto@igalia.com>, Wen Congyang <wencongyang2@huawei.com>, Xie Changlong <xiechanglong.d@gmail.com>, Markus Armbruster <armbru@redhat.com>, Greg Kurz <groug@kaod.org>, Christian Schoenebeck <qemu_oss@crudebyte.com>, Juan Quintela <quintela@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>
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[PULL 38/50] block/mirror.c: use of job helpers in drivers
Posted by Kevin Wolf 2 years, 5 months ago
From: Emanuele Giuseppe Esposito <eesposit@redhat.com>

Once job lock is used and aiocontext is removed, mirror has
to perform job operations under the same critical section,
Note: at this stage, job_{lock/unlock} and job lock guard macros
are *nop*.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20220926093214.506243-11-eesposit@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/mirror.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/block/mirror.c b/block/mirror.c
index 3c4ab1159d..c6bf7f40ce 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1152,8 +1152,10 @@ static void mirror_complete(Job *job, Error **errp)
     s->should_complete = true;
 
     /* If the job is paused, it will be re-entered when it is resumed */
-    if (!job->paused) {
-        job_enter(job);
+    WITH_JOB_LOCK_GUARD() {
+        if (!job->paused) {
+            job_enter_cond_locked(job, NULL);
+        }
     }
 }
 
@@ -1173,8 +1175,11 @@ static bool mirror_drained_poll(BlockJob *job)
      * from one of our own drain sections, to avoid a deadlock waiting for
      * ourselves.
      */
-    if (!s->common.job.paused && !job_is_cancelled(&job->job) && !s->in_drain) {
-        return true;
+    WITH_JOB_LOCK_GUARD() {
+        if (!s->common.job.paused && !job_is_cancelled_locked(&job->job)
+            && !s->in_drain) {
+            return true;
+        }
     }
 
     return !!s->in_flight;
-- 
2.37.3