Merge branch 'linus' into cpus4096

1 files changed, 16 insertions, 11 deletions

diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 3c8d61df4474..e303ccb62cdf 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -26,7 +26,8 @@ static struct task_struct	*wakeup_task;
 static int                      wakeup_cpu;
 static unsigned                 wakeup_prio = -1;
 
-static DEFINE_SPINLOCK(wakeup_lock);
+static raw_spinlock_t wakeup_lock =
+        (raw_spinlock_t)__RAW_SPIN_LOCK_UNLOCKED;
 
 static void __wakeup_reset(struct trace_array *tr);
 
@@ -56,7 +57,8 @@ wakeup_tracer_call(unsigned long ip, unsigned long parent_ip)
         if (unlikely(disabled != 1))
                 goto out;
 
-        spin_lock_irqsave(&wakeup_lock, flags);
+        local_irq_save(flags);
+        __raw_spin_lock(&wakeup_lock);
 
         if (unlikely(!wakeup_task))
                 goto unlock;
@@ -71,7 +73,8 @@ wakeup_tracer_call(unsigned long ip, unsigned long parent_ip)
         trace_function(tr, data, ip, parent_ip, flags);
 
  unlock:
-        spin_unlock_irqrestore(&wakeup_lock, flags);
+        __raw_spin_unlock(&wakeup_lock);
+        local_irq_restore(flags);
 
  out:
         atomic_dec(&data->disabled);
@@ -145,7 +148,8 @@ wakeup_sched_switch(void *private, void *rq, struct task_struct *prev,
         if (likely(disabled != 1))
                 goto out;
 
-        spin_lock_irqsave(&wakeup_lock, flags);
+        local_irq_save(flags);
+        __raw_spin_lock(&wakeup_lock);
 
         /* We could race with grabbing wakeup_lock */
         if (unlikely(!tracer_enabled || next != wakeup_task))
@@ -174,7 +178,8 @@ wakeup_sched_switch(void *private, void *rq, struct task_struct *prev,
 
 out_unlock:
         __wakeup_reset(tr);
-        spin_unlock_irqrestore(&wakeup_lock, flags);
+        __raw_spin_unlock(&wakeup_lock);
+        local_irq_restore(flags);
 out:
         atomic_dec(&tr->data[cpu]->disabled);
 }
@@ -209,8 +214,6 @@ static void __wakeup_reset(struct trace_array *tr)
         struct trace_array_cpu *data;
         int cpu;
 
-        assert_spin_locked(&wakeup_lock);
-
         for_each_possible_cpu(cpu) {
                 data = tr->data[cpu];
                 tracing_reset(data);
@@ -229,9 +232,11 @@ static void wakeup_reset(struct trace_array *tr)
 {
         unsigned long flags;
 
-        spin_lock_irqsave(&wakeup_lock, flags);
+        local_irq_save(flags);
+        __raw_spin_lock(&wakeup_lock);
         __wakeup_reset(tr);
-        spin_unlock_irqrestore(&wakeup_lock, flags);
+        __raw_spin_unlock(&wakeup_lock);
+        local_irq_restore(flags);
 }
 
 static void
@@ -252,7 +257,7 @@ wakeup_check_start(struct trace_array *tr, struct task_struct *p,
                 goto out;
 
         /* interrupts should be off from try_to_wake_up */
-        spin_lock(&wakeup_lock);
+        __raw_spin_lock(&wakeup_lock);
 
         /* check for races. */
         if (!tracer_enabled || p->prio >= wakeup_prio)
@@ -274,7 +279,7 @@ wakeup_check_start(struct trace_array *tr, struct task_struct *p,
                        CALLER_ADDR1, CALLER_ADDR2, flags);
 
 out_locked:
-        spin_unlock(&wakeup_lock);
+        __raw_spin_unlock(&wakeup_lock);
 out:
         atomic_dec(&tr->data[cpu]->disabled);
 }