linux-kernel - Re: [PATCH 1/3] cpuset: Don't always flush cpuset_migrate_mm_wq in cpuset_write

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Message-ID: <aLnJJ8n0opa86ePs@slm.duckdns.org>
Date: Thu, 4 Sep 2025 07:15:19 -1000
From: Tejun Heo <tj@...nel.org>
To: Chuyi Zhou <zhouchuyi@...edance.com>
Cc: mkoutny@...e.com, hannes@...xchg.org, longman@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] cpuset: Don't always flush cpuset_migrate_mm_wq in
 cpuset_write_resmask

On Thu, Sep 04, 2025 at 03:45:03PM +0800, Chuyi Zhou wrote:
> It is unnecessary to always wait for the flush operation of
> cpuset_migrate_mm_wq to complete in cpuset_write_resmask, as modifying
> cpuset.cpus or cpuset.exclusive does not trigger mm migrations. The
> flush_workqueue can be executed only when cpuset.mems is modified.
> 
> Signed-off-by: Chuyi Zhou <zhouchuyi@...edance.com>

Applied cgroup/for-6.18.

Thanks.

-- 
tejun