1 files changed, 7 insertions, 18 deletions

diff --git a/kernel/sched/idle_task.c b/kernel/sched/idle_task.c
index 516c3d9ceea1..879f2b75266a 100644
--- a/kernel/sched/idle_task.c
+++ b/kernel/sched/idle_task.c
@@ -13,18 +13,8 @@ select_task_rq_idle(struct task_struct *p, int cpu, int sd_flag, int flags)
 {
         return task_cpu(p); /* IDLE tasks as never migrated */
 }
-
-static void pre_schedule_idle(struct rq *rq, struct task_struct *prev)
-{
-        idle_exit_fair(rq);
-        rq_last_tick_reset(rq);
-}
-
-static void post_schedule_idle(struct rq *rq)
-{
-        idle_enter_fair(rq);
-}
 #endif /* CONFIG_SMP */
+
 /*
  * Idle tasks are unconditionally rescheduled:
  */
@@ -33,13 +23,12 @@ static void check_preempt_curr_idle(struct rq *rq, struct task_struct *p, int fl
         resched_task(rq->idle);
 }
 
-static struct task_struct *pick_next_task_idle(struct rq *rq)
+static struct task_struct *
+pick_next_task_idle(struct rq *rq, struct task_struct *prev)
 {
+        put_prev_task(rq, prev);
+
         schedstat_inc(rq, sched_goidle);
-#ifdef CONFIG_SMP
-        /* Trigger the post schedule to do an idle_enter for CFS */
-        rq->post_schedule = 1;
-#endif
         return rq->idle;
 }
 
@@ -58,6 +47,8 @@ dequeue_task_idle(struct rq *rq, struct task_struct *p, int flags)
 
 static void put_prev_task_idle(struct rq *rq, struct task_struct *prev)
 {
+        idle_exit_fair(rq);
+        rq_last_tick_reset(rq);
 }
 
 static void task_tick_idle(struct rq *rq, struct task_struct *curr, int queued)
@@ -101,8 +92,6 @@ const struct sched_class idle_sched_class = {
 
 #ifdef CONFIG_SMP
         .select_task_rq         = select_task_rq_idle,
-        .pre_schedule           = pre_schedule_idle,
-        .post_schedule          = post_schedule_idle,
 #endif
 
         .set_curr_task          = set_curr_task_idle,