Messages in this thread | | | Date | Tue, 8 Jun 2021 15:55:59 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH 1/2] sched: Add default dynamic preempt mode Kconfig |
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On Tue, Jun 08, 2021 at 02:04:41PM +0200, Frederic Weisbecker wrote: > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index 9e9a5be35cde..df47a8275c37 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -6238,6 +6238,14 @@ enum { > > int preempt_dynamic_mode = preempt_dynamic_full; > > +#if defined(CONFIG_PREEMPT_DYNAMIC_FULL) > +static __initdata int preempt_dynamic_mode_init = preempt_dynamic_full; > +#elif defined(CONFIG_PREEMPT_DYNAMIC_VOLUNTARY) > +static __initdata int preempt_dynamic_mode_init = preempt_dynamic_voluntary; > +#elif defined(CONFIG_PREEMPT_DYNAMIC_NONE) > +static __initdata int preempt_dynamic_mode_init = preempt_dynamic_none; > +#endif
Why does preempt_dynamic_mode_init exist? Why can't we simply set preempt_dynamic_mode?
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