1 files changed, 24 insertions, 5 deletions

diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index c39b089d4f09..1cb7a3d70e65 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -452,9 +452,11 @@ static void wakeup_preempt_idle(struct rq *rq, struct task_struct *p, int flags)
 	resched_curr(rq);
 }
 
+static void update_curr_idle(struct rq *rq);
+
 static void put_prev_task_idle(struct rq *rq, struct task_struct *prev, struct task_struct *next)
 {
-	dl_server_update_idle_time(rq, prev);
+	update_curr_idle(rq);
 	scx_update_idle(rq, false, true);
 }
 
@@ -466,7 +468,7 @@ static void set_next_task_idle(struct rq *rq, struct task_struct *next, bool fir
 	next->se.exec_start = rq_clock_task(rq);
 }
 
-struct task_struct *pick_task_idle(struct rq *rq)
+struct task_struct *pick_task_idle(struct rq *rq, struct rq_flags *rf)
 {
 	scx_update_idle(rq, true, false);
 	return rq->idle;
@@ -496,21 +498,36 @@ dequeue_task_idle(struct rq *rq, struct task_struct *p, int flags)
  */
 static void task_tick_idle(struct rq *rq, struct task_struct *curr, int queued)
 {
+	update_curr_idle(rq);
 }
 
-static void switched_to_idle(struct rq *rq, struct task_struct *p)
+static void switching_to_idle(struct rq *rq, struct task_struct *p)
 {
 	BUG();
 }
 
 static void
-prio_changed_idle(struct rq *rq, struct task_struct *p, int oldprio)
+prio_changed_idle(struct rq *rq, struct task_struct *p, u64 oldprio)
 {
+	if (p->prio == oldprio)
+		return;
+
 	BUG();
 }
 
 static void update_curr_idle(struct rq *rq)
 {
+	struct sched_entity *se = &rq->idle->se;
+	u64 now = rq_clock_task(rq);
+	s64 delta_exec;
+
+	delta_exec = now - se->exec_start;
+	if (unlikely(delta_exec <= 0))
+		return;
+
+	se->exec_start = now;
+
+	dl_server_update_idle(&rq->fair_server, delta_exec);
 }
 
 /*
@@ -518,6 +535,8 @@ static void update_curr_idle(struct rq *rq)
  */
 DEFINE_SCHED_CLASS(idle) = {
 
+	.queue_mask		= 0,
+
 	/* no enqueue/yield_task for idle tasks */
 
 	/* dequeue is not valid, we print a debug message there: */
@@ -536,6 +555,6 @@ DEFINE_SCHED_CLASS(idle) = {
 	.task_tick		= task_tick_idle,
 
 	.prio_changed		= prio_changed_idle,
-	.switched_to		= switched_to_idle,
+	.switching_to		= switching_to_idle,
 	.update_curr		= update_curr_idle,
 };