Lock rq in do_set_cpus_allowed before resched_task.

1 files changed, 4 insertions, 0 deletions

diff --git a/kernel/sched/MuQSS.c b/kernel/sched/MuQSS.c
index 7cd516a8fb4c..781ce7baa95a 100644
--- a/kernel/sched/MuQSS.c
+++ b/kernel/sched/MuQSS.c
@@ -5641,8 +5641,12 @@ void do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask)
 {
 	__do_set_cpus_allowed(p, new_mask);
 	if (needs_other_cpu(p, task_cpu(p))) {
+		struct rq *rq;
+
 		set_task_cpu(p, valid_task_cpu(p));
+		rq = __task_rq_lock(p);
 		resched_task(p);
+		__task_rq_unlock(rq);
 	}
 }