linux-kernel - Re: [PATCH] sched: Add a new version sysctl to control child runs first

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Date:   Mon, 13 Sep 2021 10:13:54 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     cgel.zte@...il.com
Cc:     yzaikin@...gle.com, liu.hailong6@....com.cn, mingo@...hat.com,
        juri.lelli@...hat.com, vincent.guittot@...aro.org,
        dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
        mgorman@...e.de, bristot@...hat.com, mcgrof@...nel.org,
        keescook@...omium.org, pjt@...gle.com, yang.yang29@....com.cn,
        joshdon@...gle.com, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, Zeal Robot <zealci@....com.cm>
Subject: Re: [PATCH] sched: Add a new version sysctl to control child runs
 first

On Sun, Sep 12, 2021 at 04:12:23AM +0000, cgel.zte@...il.com wrote:
> From: Yang Yang <yang.yang29@....com.cn>
> 
> The old version sysctl has some problems. First, it allows set value
> bigger than 1, which is unnecessary. Second, it didn't follow the
> rule of capabilities. Thirdly, it didn't use static key. This new
> version fixes all the problems.

Does any of that actually matter?