From: Frederic Weisbecker <frederic@kernel.org>
To: Costa Shulyupin <costa.shul@redhat.com>
Cc: Waiman Long <longman@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] hrtimer: select housekeeping CPU during migration
Date: Mon, 12 Feb 2024 16:23:48 +0100 [thread overview]
Message-ID: <Zco4BKuwYYI3NRIA@localhost.localdomain> (raw)
In-Reply-To: <20240211135213.2518068-1-costa.shul@redhat.com>
Le Sun, Feb 11, 2024 at 03:52:13PM +0200, Costa Shulyupin a écrit :
> because during CPU deactivation a timer can migrate
> to isolated CPU and break CPU isolation.
>
> For reference see function get_nohz_timer_target,
> which selects CPU for new timers from housekeeping_cpumask(HK_TYPE_TIMER)
>
> Inspired by Waiman Long <longman@redhat.com>
>
> Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
next prev parent reply other threads:[~2024-02-12 15:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-11 13:52 [PATCH] hrtimer: select housekeeping CPU during migration Costa Shulyupin
2024-02-11 16:37 ` Waiman Long
2024-02-12 15:23 ` Frederic Weisbecker [this message]
2024-02-13 12:36 ` Thomas Gleixner
2024-02-13 16:46 ` [PATCH v2] " Costa Shulyupin
2024-02-13 19:41 ` Thomas Gleixner
2024-02-13 19:49 ` [tip: timers/core] hrtimer: Select " tip-bot2 for Costa Shulyupin
2024-02-14 9:01 ` [PATCH v2] hrtimer: select " Borislav Petkov
2024-02-14 9:10 ` Thomas Gleixner
2024-02-19 14:33 ` [PATCH v3] " Costa Shulyupin
2024-02-19 16:27 ` Thomas Gleixner
2024-02-22 20:08 ` [PATCH v4] " Costa Shulyupin
2024-02-22 21:24 ` [tip: timers/core] hrtimer: Select " tip-bot2 for Costa Shulyupin
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