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

On Thu, 2021-11-11 at 04:16 +0100, Mike Galbraith wrote:

On Wed, 2021-11-10 at 20:24 +0000, Valentin Schneider wrote:

quoted

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