linux-kernel - Re: [PATCH] cgroup/cpuset: avoid unneeded cpuset

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Message-ID: <ZKxpfFeUVc3IKL74@slm.duckdns.org>
Date:   Mon, 10 Jul 2023 10:26:36 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Miaohe Lin <linmiaohe@...wei.com>
Cc:     longman@...hat.com, hannes@...xchg.org, lizefan.x@...edance.com,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cgroup/cpuset: avoid unneeded cpuset_mutex re-lock

On Tue, Jul 04, 2023 at 08:03:52PM +0800, Miaohe Lin wrote:
> cpuset_mutex unlock and lock pair is only needed when transferring tasks
> out of empty cpuset. Avoid unneeded cpuset_mutex re-lock when !is_empty
> to save cpu cycles.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>

Applied to cgroup/for-6.6.

Thanks.

-- 
tejun