linux-kernel - Re: [PATCH v3] hrtimer: select housekeeping CPU during migration

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Message-ID: <875xykju6r.ffs@tglx>
Date: Mon, 19 Feb 2024 17:27:24 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: Costa Shulyupin <costa.shul@...hat.com>, linux-kernel@...r.kernel.org
Cc: Costa Shulyupin <costa.shul@...hat.com>, Waiman Long
 <longman@...hat.com>, Frederic Weisbecker <frederic@...nel.org>
Subject: Re: [PATCH v3] hrtimer: select housekeeping CPU during migration

Costa!

On Mon, Feb 19 2024 at 16:33, Costa Shulyupin wrote:
> During CPU-down hotplug, hrtimers may migrate to isolated CPUs,
> compromising CPU isolation. This commit addresses this issue by
> masking valid CPUs for hrtimers using housekeeping_cpumask(HK_TYPE_TIMER).

Review feedback is meant to be addressed. I fixed it up for you in V2
and told you what needs to be changed and you got the fixed up version
in your inbox. Feel free to ignore me, but don't expect me to mop up
your stuff.

Thanks,

        tglx