linux-kernel - Re: [PATCH v2] kthread_worker: re-set CPU affinities if CPU come online

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Message-ID: <874kme21nv.fsf@nanos.tec.linutronix.de>
Date:   Wed, 28 Oct 2020 09:30:12 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     qiang.zhang@...driver.com, pmladek@...e.com, tj@...nel.org
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] kthread_worker: re-set CPU affinities if CPU come online

On Wed, Oct 28 2020 at 15:30, qiang zhang wrote:
> From: Zqiang <qiang.zhang@...driver.com>
>
> When someone CPU offlined, the 'kthread_worker' which bind this CPU,
> will run anywhere, if this CPU online, recovery of 'kthread_worker'
> affinity by cpuhp notifiers.
>
> Signed-off-by: Zqiang <qiang.zhang@...driver.com>
> ---
>  v1->v2:
>  rename variable kworker_online to kthread_worker_online.
>  add 'cpuhp_node' and 'bind_cpu' init in KTHREAD_WORKER_INIT.
>  add a comment explaining for WARN_ON_ONCE.

How is that addressing any of the comments I made on V1 of this?

Thanks,

        tglx