linux-kernel - Re: [RFC PATCH 07/11] sched: Add proxy execution

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Message-ID: <Y0rWCvz69XT+Vx/l@hirez.programming.kicks-ass.net>
Date:   Sat, 15 Oct 2022 17:47:22 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Connor O'Brien <connoro@...gle.com>
Cc:     linux-kernel@...r.kernel.org, kernel-team@...roid.com,
        John Stultz <jstultz@...gle.com>,
        Joel Fernandes <joelaf@...gle.com>,
        Qais Yousef <qais.yousef@....com>,
        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>,
        Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        "Paul E . McKenney" <paulmck@...nel.org>
Subject: Re: [RFC PATCH 07/11] sched: Add proxy execution

On Mon, Oct 03, 2022 at 09:44:57PM +0000, Connor O'Brien wrote:
> diff --git a/init/Kconfig b/init/Kconfig
> index 532362fcfe31..a341b9755a57 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -922,6 +922,13 @@ config NUMA_BALANCING_DEFAULT_ENABLED
>  	  If set, automatic NUMA balancing will be enabled if running on a NUMA
>  	  machine.
>  
> +config PROXY_EXEC
> +	bool "Proxy Execution"
> +	default n
> +	help
> +	  This option enables proxy execution, a mechanism for mutex owning
> +	  tasks to inherit the scheduling context of higher priority waiters.
> +

I tihnk the way you have it here you should add something like:

	depends on !SCHED_CORE