linux-kernel - Re: [PATCH v2 2/5] preempt/dynamic: Introduce preempt mode accessors

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Date:   Thu, 11 Nov 2021 04:55:30 +0100
From:   Mike Galbraith <efault@....de>
To:     Valentin Schneider <valentin.schneider@....com>,
        linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com,
        linuxppc-dev@...ts.ozlabs.org, linux-kbuild@...r.kernel.org
Cc:     Marco Elver <elver@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: Re: [PATCH v2 2/5] preempt/dynamic: Introduce preempt mode accessors

On Thu, 2021-11-11 at 04:47 +0100, Mike Galbraith wrote:
>
> So I suppose the powerpc spot should remain CONFIG_PREEMPT and become
> CONFIG_PREEMPTION when the RT change gets merged, because that spot is
> about full preemptibility, not a distinct preemption model.

KCSAN needs a little help to be usable by RT, but ditto that spot.

	-Mike