linux-kernel - Re: [PATCH v3 09/14] sched: Split scheduler execution context

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Message-ID: <20230422101325.GC1214746@hirez.programming.kicks-ass.net>
Date:   Sat, 22 Apr 2023 12:13:25 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     John Stultz <jstultz@...gle.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Joel Fernandes <joelaf@...gle.com>,
        Qais Yousef <qyousef@...gle.com>,
        Ingo Molnar <mingo@...hat.com>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Valentin Schneider <vschneid@...hat.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>,
        Zimuzo Ezeozue <zezeozue@...gle.com>,
        Mel Gorman <mgorman@...e.de>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Connor O'Brien <connoro@...gle.com>
Subject: Re: [PATCH v3 09/14] sched: Split scheduler execution context

On Tue, Apr 11, 2023 at 04:25:06AM +0000, John Stultz wrote:
> +	/*
> +	 * XXX how does (proxy exec) mutexes and RT_mutexes work together?!
> +	 */

They don't, if PE works we can delete all of rt-mutex.