Blob Blame Raw
diff --git a/kernel/sched.c b/kernel/sched.c
index 6d0dbeb..3640c20 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5155,9 +5155,11 @@ void __cpuinit init_idle_bootup_task(struct task_struct *idle)
 void __cpuinit init_idle(struct task_struct *idle, int cpu)
 {
 	struct rq *rq = cpu_rq(cpu);
+	struct rq *oldrq = task_rq(idle);
 	unsigned long flags;
 
-	raw_spin_lock_irqsave(&rq->lock, flags);
+	local_irq_save(flags);
+	double_rq_lock(oldrq, rq);
 
 	__sched_fork(idle);
 	idle->state = TASK_RUNNING;
@@ -5170,7 +5172,8 @@ void __cpuinit init_idle(struct task_struct *idle, int cpu)
 #if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW)
 	idle->oncpu = 1;
 #endif
-	raw_spin_unlock_irqrestore(&rq->lock, flags);
+	double_rq_unlock(oldrq, rq);
+	local_irq_restore(flags);
 
 	/* Set the preempt count _outside_ the spinlocks! */
 #if defined(CONFIG_PREEMPT)