linux-kernel - Re: [PATCH v2] net: Destroy previously created kthreads after failing to set napi threaded mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20230630083209.05efaeaf@kernel.org>
Date:   Fri, 30 Jun 2023 08:32:09 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Zqiang <qiang.zhang1211@...il.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: Destroy previously created kthreads after
 failing to set napi threaded mode

On Fri, 30 Jun 2023 13:43:53 +0800 Zqiang wrote:
> When setting 1 to enable napi threaded mode, will traverse dev->napi_list
> and create kthread for napi->thread, if creation fails, the dev->threaded
> will be set to false and we will clear NAPI_STATE_THREADED bit for all
> napi->state in dev->napi_list, even if some napi that has successfully
> created the kthread before. as a result, for successfully created napi
> kthread, they will never be used.
> 
> This commit therefore destroy previously created napi->thread if setting
> napi threaded mode fails.

Please don't send two patches in less than 24h, unless someone asks you
to on the list. A lot of people read the list from the oldest postings,
won't notice the newer one, and it will split the discussion.
-- 
pw-bot: cr