linux-kernel - Re: [PATCH] sched/fair: avoid redundant hrtimer check

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Message-ID: <YqHnr8SA2gbf45ok@worktop.programming.kicks-ass.net>
Date:   Thu, 9 Jun 2022 14:29:35 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Huichun Feng <foxhoundsk.tw@...il.com>
Cc:     Ingo Molnar <mingo@...hat.com>, Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Valentin Schneider <vschneid@...hat.com>,
        "open list:SCHEDULER" <linux-kernel@...r.kernel.org>,
        jserv@...s.ncku.edu.tw, Chin-En Lin <shiyn.lin@...il.com>
Subject: Re: [PATCH] sched/fair: avoid redundant hrtimer check

On Mon, Jun 06, 2022 at 08:26:12PM +0800, Huichun Feng wrote:
> The check is required iff HRTICK is enabled and DOUBLE_TICK is disabled,
> avoid the redundant check by adding corresponding sched_feat() .

How about: 'don't do that then'?