From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/kernel/sched/rt.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/kernel/kernel/sched/rt.c b/kernel/kernel/sched/rt.c
index 651f578..de4a16e 100644
--- a/kernel/kernel/sched/rt.c
+++ b/kernel/kernel/sched/rt.c
@@ -1696,8 +1696,7 @@
rt_queue_push_tasks(rq);
}
-static struct sched_rt_entity *pick_next_rt_entity(struct rq *rq,
- struct rt_rq *rt_rq)
+static struct sched_rt_entity *pick_next_rt_entity(struct rt_rq *rt_rq)
{
struct rt_prio_array *array = &rt_rq->active;
struct sched_rt_entity *next = NULL;
@@ -1708,6 +1707,8 @@
BUG_ON(idx >= MAX_RT_PRIO);
queue = array->queue + idx;
+ if (SCHED_WARN_ON(list_empty(queue)))
+ return NULL;
next = list_entry(queue->next, struct sched_rt_entity, run_list);
return next;
@@ -1719,8 +1720,9 @@
struct rt_rq *rt_rq = &rq->rt;
do {
- rt_se = pick_next_rt_entity(rq, rt_rq);
- BUG_ON(!rt_se);
+ rt_se = pick_next_rt_entity(rt_rq);
+ if (unlikely(!rt_se))
+ return NULL;
rt_rq = group_rt_rq(rt_se);
} while (rt_rq);
--
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