Re: [PATCH] sched: Split preemption model selection between DYNAMIC & !DYNAMIC

From: Frederic Weisbecker
Date: Wed Nov 10 2021 - 11:56:43 EST


On Wed, Nov 10, 2021 at 02:45:45PM +0000, Valentin Schneider wrote:
> diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
> index 7896d30d90f7..3b3226ffbafa 100644
> --- a/kernel/trace/trace.c
> +++ b/kernel/trace/trace.c
> @@ -4271,11 +4271,11 @@ print_trace_header(struct seq_file *m, struct trace_iterator *iter)
> entries,
> total,
> buf->cpu,
> -#if defined(CONFIG_PREEMPT_NONE)
> +#if defined(CONFIG_PREEMPT_NONE_BUILD)
> "server",
> -#elif defined(CONFIG_PREEMPT_VOLUNTARY)
> +#elif defined(CONFIG_PREEMPT_VOLUNTARY_BUILD)
> "desktop",
> -#elif defined(CONFIG_PREEMPT)
> +#elif defined(CONFIG_PREEMPT_BUILD)
> "preempt",
> #elif defined(CONFIG_PREEMPT_RT)
> "preempt_rt",

I also found those:

arch/powerpc/kernel/interrupt.c: if (IS_ENABLED(CONFIG_PREEMPT)) {
arch/powerpc/kernel/traps.c: IS_ENABLED(CONFIG_PREEMPT) ? " PREEMPT" : "",