linux-kernel - Re: [PATCH 03/11] smp: Remove get_cpu from smp_call_function

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Message-Id: <B3E4B524-FACB-4457-AA5A-3670CB78F298@linux.dev>
Date: Thu, 5 Feb 2026 14:03:00 +0800
From: Muchun Song <muchun.song@...ux.dev>
To: Chuyi Zhou <zhouchuyi@...edance.com>
Cc: tglx@...utronix.de,
 mingo@...hat.com,
 luto@...nel.org,
 peterz@...radead.org,
 paulmck@...nel.org,
 bp@...en8.de,
 dave.hansen@...ux.intel.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/11] smp: Remove get_cpu from smp_call_function_any



> On Feb 3, 2026, at 19:23, Chuyi Zhou <zhouchuyi@...edance.com> wrote:
> 
> Now smp_call_function_single() would enable preemption before
> csd_lock_wait() to reduce the critical section. To allow callers of
> smp_call_function_any() to also benefit from this optimization, remove
> get_cpu()/put_cpu() from smp_call_function_any().
> 
> Signed-off-by: Chuyi Zhou <zhouchuyi@...edance.com>

Reviewed-by: Muchun Song <muchun.song@...ux.dev>

Thanks.