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From: Emanuele Giuseppe Esposito <eesposit@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Fam Zheng <fam@euphon.net>,
	Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
	qemu-block@nongnu.org, Wen Congyang <wencongyang2@huawei.com>,
	Xie Changlong <xiechanglong.d@gmail.com>,
	Markus Armbruster <armbru@redhat.com>,
	qemu-devel@nongnu.org, Hanna Reitz <hreitz@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>, John Snow <jsnow@redhat.com>
Subject: Re: [PATCH v5 02/20] job.h: categorize fields in struct Job
Date: Thu, 10 Feb 2022 17:26:52 +0100	[thread overview]
Message-ID: <8607b985-22a9-c256-af1f-ff3ba250701f@redhat.com> (raw)
In-Reply-To: <YgUx60M7dB+VLi3p@stefanha-x1.localdomain>



On 10/02/2022 16:40, Stefan Hajnoczi wrote:
> On Tue, Feb 08, 2022 at 09:34:55AM -0500, Emanuele Giuseppe Esposito wrote:
>> Categorize the fields in struct Job to understand which ones
>> need to be protected by the job mutex and which don't.
>>
>> Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
>> ---
>>  include/qemu/job.h | 59 ++++++++++++++++++++++++++--------------------
>>  1 file changed, 34 insertions(+), 25 deletions(-)
>>
>> diff --git a/include/qemu/job.h b/include/qemu/job.h
>> index d1192ffd61..86ec46c09e 100644
>> --- a/include/qemu/job.h
>> +++ b/include/qemu/job.h
>> @@ -40,27 +40,50 @@ typedef struct JobTxn JobTxn;
>>   * Long-running operation.
>>   */
>>  typedef struct Job {
>> +
>> +    /* Fields set at initialization (job_create), and never modified */
> 
> Is there a corresponding "Field protected by job_mutex" comment that
> separates fields that need locking?
> 

That would be the comment

    /** Protected by job_mutex */

situated right after the field "ProgressMeter progress;".

Do you want me to change it in "Fields protected by job_mutex"?

Thank you,
Emanuele



  reply	other threads:[~2022-02-10 18:23 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-08 14:34 [PATCH v5 00/20] job: replace AioContext lock with job_mutex Emanuele Giuseppe Esposito
2022-02-08 14:34 ` [PATCH v5 01/20] job.c: make job_mutex and job_lock/unlock() public Emanuele Giuseppe Esposito
2022-02-10 15:38   ` Stefan Hajnoczi
2022-02-08 14:34 ` [PATCH v5 02/20] job.h: categorize fields in struct Job Emanuele Giuseppe Esposito
2022-02-10 15:40   ` Stefan Hajnoczi
2022-02-10 16:26     ` Emanuele Giuseppe Esposito [this message]
2022-02-10 17:35       ` Stefan Hajnoczi
2022-02-11  9:00         ` Emanuele Giuseppe Esposito
2022-02-08 14:34 ` [PATCH v5 03/20] job.c: API functions not used outside should be static Emanuele Giuseppe Esposito
2022-02-10 15:43   ` Stefan Hajnoczi
2022-02-08 14:34 ` [PATCH v5 04/20] job.c: move inner aiocontext lock in callbacks Emanuele Giuseppe Esposito
2022-02-17 13:45   ` Stefan Hajnoczi
2022-02-24  9:20     ` Emanuele Giuseppe Esposito
2022-02-24  9:29     ` Emanuele Giuseppe Esposito
2022-02-08 14:34 ` [PATCH v5 05/20] aio-wait.h: introduce AIO_WAIT_WHILE_UNLOCKED Emanuele Giuseppe Esposito
2022-02-17 13:56   ` Stefan Hajnoczi
2022-02-08 14:34 ` [PATCH v5 06/20] jobs: remove aiocontext locks since the functions are under BQL Emanuele Giuseppe Esposito
2022-02-17 14:12   ` Stefan Hajnoczi
2022-02-24  9:27     ` Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 07/20] job.h: add _locked duplicates for job API functions called with and without job_mutex Emanuele Giuseppe Esposito
2022-02-17 14:20   ` Stefan Hajnoczi
2022-02-24  9:52     ` Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 08/20] jobs: protect jobs with job_lock/unlock Emanuele Giuseppe Esposito
2022-02-17 14:48   ` Stefan Hajnoczi
2022-02-24 12:45     ` Emanuele Giuseppe Esposito
2022-02-24 16:48       ` Stefan Hajnoczi
2022-02-24 16:55         ` Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 09/20] jobs: add job lock in find_* functions Emanuele Giuseppe Esposito
2022-02-17 15:00   ` Stefan Hajnoczi
2022-02-24 12:36     ` Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 10/20] jobs: use job locks also in the unit tests Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 11/20] block/mirror.c: use of job helpers in drivers to avoid TOC/TOU Emanuele Giuseppe Esposito
2022-02-17 16:53   ` Stefan Hajnoczi
2022-02-08 14:35 ` [PATCH v5 12/20] jobs: rename static functions called with job_mutex held Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 13/20] job.h: rename job API " Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 14/20] block_job: rename block_job " Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 15/20] job.h: define unlocked functions Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 16/20] commit and mirror: create new nodes using bdrv_get_aio_context, and not the job aiocontext Emanuele Giuseppe Esposito
2022-03-08 11:13   ` Stefan Hajnoczi
2022-02-08 14:35 ` [PATCH v5 17/20] job: detect change of aiocontext within job coroutine Emanuele Giuseppe Esposito
2022-03-08 11:19   ` Stefan Hajnoczi
2022-02-08 14:35 ` [PATCH v5 18/20] jobs: protect job.aio_context with BQL and job_mutex Emanuele Giuseppe Esposito
2022-03-08 13:41   ` Stefan Hajnoczi
2022-03-10 10:09     ` Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 19/20] job.c: enable job lock/unlock and remove Aiocontext locks Emanuele Giuseppe Esposito
2022-03-08 14:04   ` Stefan Hajnoczi
2022-03-10 10:25     ` Emanuele Giuseppe Esposito
2022-02-08 14:35 ` [PATCH v5 20/20] block_job_query: remove atomic read Emanuele Giuseppe Esposito
2022-03-08 14:06   ` Stefan Hajnoczi

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