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

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Message-ID: <871rhi1z7j.fsf@nanos.tec.linutronix.de>
Date:   Wed, 28 Oct 2020 10:23:12 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     "Zhang\, Qiang" <Qiang.Zhang@...driver.com>,
        "pmladek\@suse.com" <pmladek@...e.com>,
        "tj\@kernel.org" <tj@...nel.org>
Cc:     "akpm\@linux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-mm\@kvack.org" <linux-mm@...ck.org>,
        "linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: 回复: [PATCH v2] kthread_worker: re-set CPU
 affinities if CPU come online

Quiang,

On Wed, Oct 28 2020 at 08:45, Qiang Zhang wrote:
> ________________________________________
> 发件人: Thomas Gleixner <tglx@...utronix.de>
> 发送时间: 2020年10月28日 16:30
> 收件人: Zhang, Qiang; pmladek@...e.com; tj@...nel.org
> 抄送: akpm@...ux-foundation.org; linux-mm@...ck.org; linux-kernel@...r.kernel.org
> 主题: Re: [PATCH v2] kthread_worker: re-set CPU affinities if CPU come online

Can you please teach your mail client not to copy the mail headers into
the reply?

> [Please note this e-mail is from an EXTERNAL e-mail address]

And delete this non-information please.

> On Wed, Oct 28 2020 at 15:30, qiang zhang wrote:
>
>>How is that addressing any of the comments I made on V1 of this?
>
> Do you mean the following problem:
>  
> "The dynamic hotplug states run late. What's preventing work to be queued
> on such a worker before it is bound to the CPU again?"

This is one problem, but there are more and I explained them in great
length. If there is anything unclear, then please ask.

Thanks,

        tglx