1 files changed, 12 insertions, 0 deletions

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index dc0f435a2779..c2c0d7bd5027 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -6,6 +6,7 @@
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
 #include <linux/stop_machine.h>
+#include <linux/irq_work.h>
 #include <linux/tick.h>
 #include <linux/slab.h>
 
@@ -418,6 +419,11 @@ static inline int rt_bandwidth_enabled(void)
         return sysctl_sched_rt_runtime >= 0;
 }
 
+/* RT IPI pull logic requires IRQ_WORK */
+#ifdef CONFIG_IRQ_WORK
+# define HAVE_RT_PUSH_IPI
+#endif
+
 /* Real-Time classes' related field in a runqueue: */
 struct rt_rq {
         struct rt_prio_array active;
@@ -435,7 +441,13 @@ struct rt_rq {
         unsigned long rt_nr_total;
         int overloaded;
         struct plist_head pushable_tasks;
+#ifdef HAVE_RT_PUSH_IPI
+        int push_flags;
+        int push_cpu;
+        struct irq_work push_work;
+        raw_spinlock_t push_lock;
 #endif
+#endif /* CONFIG_SMP */
         int rt_queued;
 
         int rt_throttled;