From: Emanuele Giuseppe Esposito <eesposit@redhat.com>
To: qemu-block@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>, Fam Zheng <fam@euphon.net>,
Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
Wen Congyang <wencongyang2@huawei.com>,
Xie Changlong <xiechanglong.d@gmail.com>,
Emanuele Giuseppe Esposito <eesposit@redhat.com>,
Markus Armbruster <armbru@redhat.com>,
qemu-devel@nongnu.org, Hanna Reitz <hreitz@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>, John Snow <jsnow@redhat.com>
Subject: [RFC PATCH v2 11/14] block_job_query: remove atomic read
Date: Thu, 4 Nov 2021 10:53:31 -0400 [thread overview]
Message-ID: <20211104145334.1346363-12-eesposit@redhat.com> (raw)
In-Reply-To: <20211104145334.1346363-1-eesposit@redhat.com>
Not sure what the atomic here was supposed to do, since job.busy
is protected by the job lock. Since the whole function will
be called under job_mutex, just remove the atomic.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
---
blockjob.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/blockjob.c b/blockjob.c
index dcc13dc336..426dcddcc1 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -314,6 +314,7 @@ int64_t block_job_ratelimit_get_delay(BlockJob *job, uint64_t n)
return ratelimit_calculate_delay(&job->limit, n);
}
+/* Called with job_mutex held */
BlockJobInfo *block_job_query(BlockJob *job, Error **errp)
{
BlockJobInfo *info;
@@ -332,13 +333,13 @@ BlockJobInfo *block_job_query(BlockJob *job, Error **errp)
info = g_new0(BlockJobInfo, 1);
info->type = g_strdup(job_type_str(&job->job));
info->device = g_strdup(job->job.id);
- info->busy = qatomic_read(&job->job.busy);
+ info->busy = job->job.busy;
info->paused = job->job.pause_count > 0;
info->offset = progress_current;
info->len = progress_total;
info->speed = job->speed;
info->io_status = job->iostatus;
- info->ready = job_is_ready(&job->job),
+ info->ready = job_is_ready_locked(&job->job),
info->status = job->job.status;
info->auto_finalize = job->job.auto_finalize;
info->auto_dismiss = job->job.auto_dismiss;
--
2.27.0
next prev parent reply other threads:[~2021-11-04 15:03 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-04 14:53 [RFC PATCH v2 00/14] job: replace AioContext lock with job_mutex Emanuele Giuseppe Esposito
2021-11-04 14:53 ` [RFC PATCH v2 01/14] job.c: make job_lock/unlock public Emanuele Giuseppe Esposito
2021-12-16 16:18 ` Stefan Hajnoczi
2021-11-04 14:53 ` [RFC PATCH v2 02/14] job.h: categorize fields in struct Job Emanuele Giuseppe Esposito
2021-12-16 16:21 ` Stefan Hajnoczi
2021-12-21 14:23 ` Emanuele Giuseppe Esposito
2021-11-04 14:53 ` [RFC PATCH v2 03/14] job.h: define locked functions Emanuele Giuseppe Esposito
2021-12-16 16:48 ` Stefan Hajnoczi
2021-12-16 17:11 ` Vladimir Sementsov-Ogievskiy
2021-12-20 10:15 ` Emanuele Giuseppe Esposito
2021-11-04 14:53 ` [RFC PATCH v2 04/14] job.h: define unlocked functions Emanuele Giuseppe Esposito
2021-12-16 16:51 ` Stefan Hajnoczi
2021-11-04 14:53 ` [RFC PATCH v2 05/14] block/mirror.c: use of job helpers in drivers to avoid TOC/TOU Emanuele Giuseppe Esposito
2021-12-18 11:53 ` Vladimir Sementsov-Ogievskiy
2021-12-20 10:34 ` Emanuele Giuseppe Esposito
2021-12-20 10:47 ` Vladimir Sementsov-Ogievskiy
2021-12-23 11:37 ` Emanuele Giuseppe Esposito
2021-11-04 14:53 ` [RFC PATCH v2 06/14] job.c: make job_event_* functions static Emanuele Giuseppe Esposito
2021-12-16 16:54 ` Stefan Hajnoczi
2021-11-04 14:53 ` [RFC PATCH v2 07/14] job.c: move inner aiocontext lock in callbacks Emanuele Giuseppe Esposito
2021-11-04 14:53 ` [RFC PATCH v2 08/14] aio-wait.h: introduce AIO_WAIT_WHILE_UNLOCKED Emanuele Giuseppe Esposito
2021-11-04 14:53 ` [RFC PATCH v2 09/14] jobs: remove aiocontext locks since the functions are under BQL Emanuele Giuseppe Esposito
2021-11-04 14:53 ` [RFC PATCH v2 10/14] jobs: protect jobs with job_lock/unlock Emanuele Giuseppe Esposito
2021-12-18 11:57 ` Vladimir Sementsov-Ogievskiy
2021-11-04 14:53 ` Emanuele Giuseppe Esposito [this message]
2021-12-18 12:07 ` [RFC PATCH v2 11/14] block_job_query: remove atomic read Vladimir Sementsov-Ogievskiy
2021-12-23 11:37 ` Emanuele Giuseppe Esposito
2021-11-04 14:53 ` [RFC PATCH v2 12/14] jobs: use job locks and helpers also in the unit tests Emanuele Giuseppe Esposito
2021-11-04 14:53 ` [RFC PATCH v2 13/14] jobs: add job lock in find_* functions Emanuele Giuseppe Esposito
2021-12-18 12:11 ` Vladimir Sementsov-Ogievskiy
2021-12-18 12:22 ` Vladimir Sementsov-Ogievskiy
2021-11-04 14:53 ` [RFC PATCH v2 14/14] job.c: enable job lock/unlock and remove Aiocontext locks Emanuele Giuseppe Esposito
2021-12-18 12:24 ` Vladimir Sementsov-Ogievskiy
2021-12-23 14:59 ` Emanuele Giuseppe Esposito
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