From: Emanuele Giuseppe Esposito <eesposit@redhat.com>
To: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>,
qemu-block@nongnu.org, Kevin Wolf <kwolf@redhat.com>
Cc: Hanna Reitz <hreitz@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>, John Snow <jsnow@redhat.com>,
Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
Wen Congyang <wencongyang2@huawei.com>,
Xie Changlong <xiechanglong.d@gmail.com>,
Markus Armbruster <armbru@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>, Fam Zheng <fam@euphon.net>,
qemu-devel@nongnu.org
Subject: Re: [PATCH v7 10/18] jobs: rename static functions called with job_mutex held
Date: Tue, 28 Jun 2022 19:28:41 +0200 [thread overview]
Message-ID: <0a2914ed-2976-1e6e-ca90-73bffb92d361@redhat.com> (raw)
In-Reply-To: <97ebf37c-1e86-7627-18de-d5d740dd0a6f@yandex-team.ru>
Am 28/06/2022 um 17:26 schrieb Vladimir Sementsov-Ogievskiy:
> On 6/28/22 18:22, Vladimir Sementsov-Ogievskiy wrote:
>> On 6/28/22 16:04, Emanuele Giuseppe Esposito wrote:
>>>>> Ok so far I did the following:
>>>>>
>>>>> - duplicated each public function as static {function}_locked()
>>>> They shouldn't be duplicates: function without _locked suffix should
>>>> take the mutex.
>>> By "duplicate" I mean same function name, with just _locked suffix.
>>> Maybe a better definition?
>>>
>>> Almost done preparing the patches!
>>
>> Why not just add _locked version and rework the version without suffix
>> to call _locked under mutex one in one patch, to just keep it all
>> meaningful?
>>
>
> I mean, instead of:
>
> patch 1: add a _locked() duplicate
>
> At this point we have a duplicated function that's just bad practice.
>
> patch 2: remake version without prefix to call _locked() under mutex
>
> Now everything is correct. But we have to track the moment when
> something strange becomes something correct.
>
>
> do just
>
> patch 1: rename function to _locked() and add a wrapper without suffix,
> that calls _locked() under mutex
>
>
That's what I always intended to do. As I said, I just used the wrong word.
Emanuele
next prev parent reply other threads:[~2022-06-28 17:30 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-16 13:18 [PATCH v7 00/18] job: replace AioContext lock with job_mutex Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 01/18] job.c: make job_mutex and job_lock/unlock() public Emanuele Giuseppe Esposito
2022-06-21 13:47 ` Vladimir Sementsov-Ogievskiy
2022-06-24 18:22 ` Vladimir Sementsov-Ogievskiy
2022-06-28 13:08 ` Emanuele Giuseppe Esposito
2022-06-28 15:20 ` Vladimir Sementsov-Ogievskiy
2022-06-16 13:18 ` [PATCH v7 02/18] job.h: categorize fields in struct Job Emanuele Giuseppe Esposito
2022-06-21 14:29 ` Vladimir Sementsov-Ogievskiy
2022-06-16 13:18 ` [PATCH v7 03/18] job.c: API functions not used outside should be static Emanuele Giuseppe Esposito
2022-06-21 14:34 ` Vladimir Sementsov-Ogievskiy
2022-06-16 13:18 ` [PATCH v7 04/18] aio-wait.h: introduce AIO_WAIT_WHILE_UNLOCKED Emanuele Giuseppe Esposito
2022-06-21 14:40 ` Vladimir Sementsov-Ogievskiy
2022-06-16 13:18 ` [PATCH v7 05/18] job.h: add _locked duplicates for job API functions called with and without job_mutex Emanuele Giuseppe Esposito
2022-06-21 15:03 ` Vladimir Sementsov-Ogievskiy
2022-06-22 14:26 ` Emanuele Giuseppe Esposito
2022-06-22 18:12 ` Vladimir Sementsov-Ogievskiy
2022-06-16 13:18 ` [PATCH v7 06/18] jobs: protect jobs with job_lock/unlock Emanuele Giuseppe Esposito
2022-06-21 16:47 ` Vladimir Sementsov-Ogievskiy
2022-06-21 17:09 ` Vladimir Sementsov-Ogievskiy
2022-06-16 13:18 ` [PATCH v7 07/18] jobs: add job lock in find_* functions Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 08/18] jobs: use job locks also in the unit tests Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 09/18] block/mirror.c: use of job helpers in drivers to avoid TOC/TOU Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 10/18] jobs: rename static functions called with job_mutex held Emanuele Giuseppe Esposito
2022-06-21 17:26 ` Vladimir Sementsov-Ogievskiy
2022-06-22 14:26 ` Emanuele Giuseppe Esposito
2022-06-22 18:38 ` Vladimir Sementsov-Ogievskiy
2022-06-23 9:08 ` Emanuele Giuseppe Esposito
2022-06-23 11:10 ` Vladimir Sementsov-Ogievskiy
2022-06-23 11:19 ` Emanuele Giuseppe Esposito
2022-06-23 11:58 ` Vladimir Sementsov-Ogievskiy
2022-06-24 14:29 ` Kevin Wolf
2022-06-24 15:28 ` Paolo Bonzini
2022-06-24 17:20 ` Emanuele Giuseppe Esposito
2022-06-28 7:40 ` Emanuele Giuseppe Esposito
2022-06-28 10:47 ` Vladimir Sementsov-Ogievskiy
2022-06-28 13:04 ` Emanuele Giuseppe Esposito
2022-06-28 15:22 ` Vladimir Sementsov-Ogievskiy
2022-06-28 15:26 ` Vladimir Sementsov-Ogievskiy
2022-06-28 17:28 ` Emanuele Giuseppe Esposito [this message]
2022-06-28 19:42 ` Vladimir Sementsov-Ogievskiy
2022-06-16 13:18 ` [PATCH v7 11/18] job.h: rename job API " Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 12/18] block_job: rename block_job " Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 13/18] job.h: define unlocked functions Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 14/18] commit and mirror: create new nodes using bdrv_get_aio_context, and not the job aiocontext Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 15/18] job: detect change of aiocontext within job coroutine Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 16/18] jobs: protect job.aio_context with BQL and job_mutex Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 17/18] job.c: enable job lock/unlock and remove Aiocontext locks Emanuele Giuseppe Esposito
2022-06-16 13:18 ` [PATCH v7 18/18] block_job_query: remove atomic read Emanuele Giuseppe Esposito
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