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

Mike Galbraith efault at gmx.de
Thu Nov 11 14:16:58 AEDT 2021


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.

	-Mike


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