linux-kernel - Re: [PATCH] io_uring/sqpoll: Do not set PF_NO

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Date:   Wed, 15 Mar 2023 06:51:11 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     io-uring@...r.kernel.org,
        Michal Koutný <mkoutny@...e.com>
Cc:     linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
        Pavel Begunkov <asml.silence@...il.com>,
        Daniel Dao <dqminh@...udflare.com>,
        Waiman Long <longman@...hat.com>
Subject: Re: [PATCH] io_uring/sqpoll: Do not set PF_NO_SETAFFINITY on
 sqpoll threads


On Tue, 14 Mar 2023 19:33:32 +0100, Michal Koutný wrote:
> Users may specify a CPU where the sqpoll thread would run. This may
> conflict with cpuset operations because of strict PF_NO_SETAFFINITY
> requirement. That flag is unnecessary for polling "kernel" threads, see
> the reasoning in commit 01e68ce08a30 ("io_uring/io-wq: stop setting
> PF_NO_SETAFFINITY on io-wq workers"). Drop the flag on poll threads too.
> 
> 
> [...]

Applied, thanks!

[1/1] io_uring/sqpoll: Do not set PF_NO_SETAFFINITY on sqpoll threads
      commit: a5fc1441af7719e93dc7a638a960befb694ade89

Best regards,
-- 
Jens Axboe