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Date:   Tue, 15 Dec 2020 08:50:44 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Lai Jiangshan <jiangshanlai@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Lai Jiangshan <laijs@...ux.alibaba.com>,
        Hillf Danton <hdanton@...a.com>,
        Valentin Schneider <valentin.schneider@....com>,
        Qian Cai <cai@...hat.com>,
        Vincent Donnefort <vincent.donnefort@....com>,
        Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH 00/10] workqueue: break affinity initiatively

On Tue, Dec 15, 2020 at 01:44:53PM +0800, Lai Jiangshan wrote:
> I don't know how the scheduler distinguishes all these
> different cases under the "new assumption".

The special case is:

  (p->flags & PF_KTHREAD) && p->nr_cpus_allowed == 1


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