From e133e1f631a0673dc64e13ac87f377bf8750c878 Mon Sep 17 00:00:00 2001
From: Zelin Tong <ztong@ludwig.cs.unc.edu>
Date: Mon, 16 Nov 2020 08:51:55 -0500
Subject: Changed Ordering of sched classes to stop->dl->rt->litmus->fair->idle

---
 kernel/sched/litmus.c | 2 +-
 kernel/sched/rt.c     | 2 +-
 kernel/sched/sched.h  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/litmus.c b/kernel/sched/litmus.c
index d9c59998155b..2c6576ad7f6c 100644
--- a/kernel/sched/litmus.c
+++ b/kernel/sched/litmus.c
@@ -360,7 +360,7 @@ const struct sched_class litmus_sched_class = {
 	 * cpu-hotplug or cpu throttling. Allows Litmus to use up to 1.0
 	 * CPU capacity.
 	 */
-	.next			= &stop_sched_class,
+	.next			= &fair_sched_class,
 	.enqueue_task		= enqueue_task_litmus,
 	.dequeue_task		= dequeue_task_litmus,
 	.yield_task		= yield_task_litmus,
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index ec2cdd9e347f..ccb4318246b5 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -2326,7 +2326,7 @@ static unsigned int get_rr_interval_rt(struct rq *rq, struct task_struct *task)
 }
 
 const struct sched_class rt_sched_class = {
-	.next			= &fair_sched_class,
+	.next			= &litmus_sched_class,
 	.enqueue_task		= enqueue_task_rt,
 	.dequeue_task		= dequeue_task_rt,
 	.yield_task		= yield_task_rt,
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 34e2f3bd7875..98205294958b 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1304,7 +1304,7 @@ static inline void set_curr_task(struct rq *rq, struct task_struct *curr)
  * but existing plugins (that predate the stop-machine class) depend on the
  * assumption that LITMUS^RT plugins are the top scheduling class (FIXME).
  */
-#define sched_class_highest (&litmus_sched_class)
+#define sched_class_highest (&stop_sched_class)
 #define for_each_class(class) \
    for (class = sched_class_highest; class; class = class->next)
 
-- 
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