linux-kernel - Re: [PATCH 08/15] tick: Move tick cancellation up to CPUHP_AP_TICK

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Date: Thu, 25 Jan 2024 10:37:50 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: Frederic Weisbecker <frederic@...nel.org>, LKML
 <linux-kernel@...r.kernel.org>
Cc: Frederic Weisbecker <frederic@...nel.org>, Ingo Molnar
 <mingo@...nel.org>, Anna-Maria Behnsen <anna-maria@...utronix.de>, Peng
 Liu <liupeng17@...ovo.com>, Joel Fernandes <joel@...lfernandes.org>
Subject: Re: [PATCH 08/15] tick: Move tick cancellation up to
 CPUHP_AP_TICK_DYING

On Wed, Jan 24 2024 at 18:04, Frederic Weisbecker wrote:

> The tick hrtimer is cancelled right before hrtimers are migrated. This
> is done from the hrtimer subsystem even though it shouldn't know about
> its actual users.
>
> Move instead the tick hrtimer cancellation to the relevant CPU hotplug
> state that aims at centralizing high level tick shutdown operations so
> that the related flow is easy to follow.
>
> Signed-off-by: Frederic Weisbecker <frederic@...nel.org>

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>