diff --git a/init/main.c b/init/main.c
index 44b2433334c..737ab05f4ad 100644
--- a/init/main.c
+++ b/init/main.c
@@ -359,6 +359,7 @@ static __initdata DECLARE_COMPLETION(kthreadd_done);
 static noinline void __init_refok rest_init(void)
 {
 	int pid;
+	const struct sched_param param = { .sched_priority = 1 };
 
 	rcu_scheduler_starting();
 	/*
@@ -372,6 +373,7 @@ static noinline void __init_refok rest_init(void)
 	rcu_read_lock();
 	kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns);
 	rcu_read_unlock();
+	sched_setscheduler_nocheck(kthreadd_task, SCHED_FIFO, &param);
 	complete(&kthreadd_done);
 
 	/*