linux-kernel - Re: [PATCH] sched_ext: idle: small CPU iteration refactoring

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Message-ID: <Z3wlobGFs29P5Fr3@slm.duckdns.org>
Date: Mon, 6 Jan 2025 08:49:05 -1000
From: Tejun Heo <tj@...nel.org>
To: Andrea Righi <arighi@...dia.com>
Cc: David Vernet <void@...ifault.com>, Changwoo Min <changwoo@...lia.com>,
	Yury Norov <yury.norov@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched_ext: idle: small CPU iteration refactoring

On Sat, Jan 04, 2025 at 10:00:09AM +0100, Andrea Righi wrote:
> Replace the loop to check if all SMT CPUs are idle with
> cpumask_subset(). This simplifies the code and slightly improves
> efficiency, while preserving the original behavior.
> 
> Note that idle_masks.smt handling remains racy, which is acceptable as
> it serves as an optimization and is self-correcting.
> 
> Suggested-by: Yury Norov <yury.norov@...il.com>
> Signed-off-by: Andrea Righi <arighi@...dia.com>

Applied to sched_ext/for-6.14.

Thanks.

-- 
tejun