Core: call IPI notifier from generic scheduler IPI handler

Instead of replicating this code across all supported architectures,
hook into the IPI code only once.

1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a17bd1a9be77..98ad911a0c58 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1816,6 +1816,9 @@ void scheduler_ipi(void)
          */
         preempt_fold_need_resched();
 
+        /* Let LITMUS^RT preemption state machine know about this IPI. */
+        sched_state_ipi();
+
         if (llist_empty(&this_rq()->wake_list) && !got_nohz_idle_kick())
         {
 #ifndef CONFIG_ARCH_CALLS_IRQ_ENTER_ON_RESCHED_IPI