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

[Mike Galbraith <efault@gmx.de>]

On Thu, 2021-11-11 at 04:16 +0100, Mike Galbraith wrote:
> On Wed, 2021-11-10 at 20:24 +0000, Valentin Schneider wrote:
> >
> > diff --git a/include/linux/sched.h b/include/linux/sched.h
> > index 5f8db54226af..0640d5622496 100644
> > --- a/include/linux/sched.h
> > +++ b/include/linux/sched.h
> > @@ -2073,6 +2073,22 @@ static inline void cond_resched_rcu(void)
> >  #endif
> >  }
> >  
> > +#ifdef CONFIG_PREEMPT_DYNAMIC
> > +
> > +extern bool is_preempt_none(void);
> > +extern bool is_preempt_voluntary(void);
> > +extern bool is_preempt_full(void);
> > +
> > +#else
> > +
> > +#define is_preempt_none() IS_ENABLED(CONFIG_PREEMPT_NONE)
> > +#define is_preempt_voluntary()
> > IS_ENABLED(CONFIG_PREEMPT_VOLUNTARY)
> > +#define is_preempt_full() IS_ENABLED(CONFIG_PREEMPT)
>
> I think that should be IS_ENABLED(CONFIG_PREEMPTION), see
> c1a280b68d4e.
>
> Noticed while applying the series to an RT tree, where tglx
> has done that replacement to the powerpc spot your next patch
> diddles.

Damn, then comes patch 5 properly differentiating PREEMPT/PREEMPT_RT.

	-Mike