VisionFive2 Linux kernel

author: Thomas Gleixner <tglx@linutronix.de> 2021-09-28 14:24:27 +0200 committer: Minda Chen <minda.chen@starfivetech.com> 2023-11-06 19:24:43 +0800 commit: f31e6fa87734a8d38230bbb49574bb510e019b32 parent: 87c9b160ff77705f4bc00b477b145732d156920c

Commit Summary:

sched: Disable TTWU_QUEUE on RT

Diffstat:

1 file changed, 5 insertions, 0 deletions

diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index 7f8dace0964c..1cf435bbcd9c 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -46,11 +46,16 @@ SCHED_FEAT(DOUBLE_TICK, false)
  */
 SCHED_FEAT(NONTASK_CAPACITY, true)
 
+#ifdef CONFIG_PREEMPT_RT
+SCHED_FEAT(TTWU_QUEUE, false)
+#else
+
 /*
  * Queue remote wakeups on the target CPU and process them
  * using the scheduler IPI. Reduces rq->lock contention/bounces.
  */
 SCHED_FEAT(TTWU_QUEUE, true)
+#endif
 
 /*
  * When doing wakeups, attempt to limit superfluous scans of the LLC domain.