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-rw-r--r--kernel/sched_rt.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index f54792b175b2..0a6d2e516420 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -393,8 +393,6 @@ static void enqueue_task_rt(struct rq *rq, struct task_struct *p, int wakeup)
*/
for_each_sched_rt_entity(rt_se)
enqueue_rt_entity(rt_se);
-
- inc_cpu_load(rq, p->se.load.weight);
}
static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep)
@@ -414,8 +412,6 @@ static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep)
if (rt_rq && rt_rq->rt_nr_running)
enqueue_rt_entity(rt_se);
}
-
- dec_cpu_load(rq, p->se.load.weight);
}
/*
@@ -1111,9 +1107,11 @@ static void prio_changed_rt(struct rq *rq, struct task_struct *p,
pull_rt_task(rq);
/*
* If there's a higher priority task waiting to run
- * then reschedule.
+ * then reschedule. Note, the above pull_rt_task
+ * can release the rq lock and p could migrate.
+ * Only reschedule if p is still on the same runqueue.
*/
- if (p->prio > rq->rt.highest_prio)
+ if (p->prio > rq->rt.highest_prio && rq->curr == p)
resched_task(p);
#else
/* For UP simply resched on drop of prio */