linux-kernel - Re: [PATCH v3] sched: Provide Kconfig support for default dynamic preempt mode

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Message-ID: <YUCtMWgWCckBOYM1@hirez.programming.kicks-ass.net>
Date:   Tue, 14 Sep 2021 16:09:53 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Frederic Weisbecker <frederic@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH v3] sched: Provide Kconfig support for default dynamic
 preempt mode

On Tue, Sep 14, 2021 at 12:31:34PM +0200, Frederic Weisbecker wrote:
> Currently the boot defined preempt behaviour (aka dynamic preempt)
> selects full preemption by default when the "preempt=" boot parameter
> is omitted. However distros may rather want to default to either
> no preemption or voluntary preemption.
> 
> To provide with this flexibility, make dynamic preemption a visible
> Kconfig option and adapt the preemption behaviour selected by the user
> to either static or dynamic preemption.
> 
> Signed-off-by: Frederic Weisbecker <frederic@...nel.org>

Thanks!