linux-kernel - Re: [PATCH 13/23] sched,ion: Convert to sched_set

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Message-ID: <20200422154223.GO20730@hirez.programming.kicks-ass.net>
Date:   Wed, 22 Apr 2020 17:42:23 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Juri Lelli <juri.lelli@...hat.com>
Cc:     Vincent Guittot <vincent.guittot@...aro.org>,
        Ingo Molnar <mingo@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Steven Rostedt <rostedt@...dmis.org>,
        Qais Yousef <qais.yousef@....com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        John Stultz <john.stultz@...aro.org>
Subject: Re: [PATCH 13/23] sched,ion: Convert to sched_set_normal()

On Wed, Apr 22, 2020 at 05:38:20PM +0200, Juri Lelli wrote:
> On 22/04/20 15:59, Peter Zijlstra wrote:

> > I should get back to proxy execution I suppose...
> 
> Huh, so you really think proxy exec should be default on for kernel
> mutexes...

We'll see, ideally yes, but even if not, then you have something to give
to people who run into trouble.

It would also allow a true idle time class, although I'm not sure we'd
actually want to go there.