linux-kernel - Re: [PATCH] tick/nohz_full: don't abuse smp_call_function_single() in tick_setup

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Message-ID: <20240603154133.GC388@redhat.com>
Date: Mon, 3 Jun 2024 17:41:33 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Frederic Weisbecker <frederic@...nel.org>
Cc: Ingo Molnar <mingo@...hat.com>, Nicholas Piggin <npiggin@...il.com>,
	Peter Zijlstra <peterz@...radead.org>, Phil Auld <pauld@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Chris von Recklinghausen <crecklin@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tick/nohz_full: don't abuse smp_call_function_single()
 in tick_setup_device()

On 06/02, Frederic Weisbecker wrote:
>
> I guess the static version above should work to remove the ifdef. And yes on top is fine.

OK, I've sent v2.

But again, I won't argue if you prefer to keep tick_do_timer_boot_cpu and add
WARN_ON_ONCE(tick_cpu != tick_do_timer_boot_cpu) before WRITE_ONCE(tick_do_timer_cpu).
In this case another patch makes no sense, I'll update this one.

Just tell me what you like more. Sorry for the chaotic emails.

Oleg.