sched: Convert rq->lock to raw_spinlock

Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 7 insertions, 7 deletions

diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index aecbd9c6b20c..a8325a7ff94c 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -454,9 +454,9 @@ static void disable_runtime(struct rq *rq)
 {
         unsigned long flags;
 
-        spin_lock_irqsave(&rq->lock, flags);
+        raw_spin_lock_irqsave(&rq->lock, flags);
         __disable_runtime(rq);
-        spin_unlock_irqrestore(&rq->lock, flags);
+        raw_spin_unlock_irqrestore(&rq->lock, flags);
 }
 
 static void __enable_runtime(struct rq *rq)
@@ -486,9 +486,9 @@ static void enable_runtime(struct rq *rq)
 {
         unsigned long flags;
 
-        spin_lock_irqsave(&rq->lock, flags);
+        raw_spin_lock_irqsave(&rq->lock, flags);
         __enable_runtime(rq);
-        spin_unlock_irqrestore(&rq->lock, flags);
+        raw_spin_unlock_irqrestore(&rq->lock, flags);
 }
 
 static int balance_runtime(struct rt_rq *rt_rq)
@@ -524,7 +524,7 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun)
                 struct rt_rq *rt_rq = sched_rt_period_rt_rq(rt_b, i);
                 struct rq *rq = rq_of_rt_rq(rt_rq);
 
-                spin_lock(&rq->lock);
+                raw_spin_lock(&rq->lock);
                 if (rt_rq->rt_time) {
                         u64 runtime;
 
@@ -545,7 +545,7 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun)
 
                 if (enqueue)
                         sched_rt_rq_enqueue(rt_rq);
-                spin_unlock(&rq->lock);
+                raw_spin_unlock(&rq->lock);
         }
 
         return idle;
@@ -1246,7 +1246,7 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq)
                                      task_running(rq, task) ||
                                      !task->se.on_rq)) {
 
-                                spin_unlock(&lowest_rq->lock);
+                                raw_spin_unlock(&lowest_rq->lock);
                                 lowest_rq = NULL;
                                 break;
                         }