1 files changed, 11 insertions, 0 deletions

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 889904dd6d77..eb363aa5d83c 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -5,6 +5,7 @@
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
 #include <linux/stop_machine.h>
+#include <linux/tick.h>
 
 #include "cpupri.h"
 
@@ -1106,6 +1107,16 @@ static inline u64 steal_ticks(u64 steal)
 static inline void inc_nr_running(struct rq *rq)
 {
         rq->nr_running++;
+
+#ifdef CONFIG_NO_HZ_FULL
+        if (rq->nr_running == 2) {
+                if (tick_nohz_full_cpu(rq->cpu)) {
+                        /* Order rq->nr_running write against the IPI */
+                        smp_wmb();
+                        smp_send_reschedule(rq->cpu);
+                }
+       }
+#endif
 }
 
 static inline void dec_nr_running(struct rq *rq)