ftrace: don't use raw_local_irq_save/restore

Using raw_local_irq_save/restore confuses lockdep.
It's fine to use the normal ones.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index 3e4771d..2715267 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -29,7 +29,7 @@
 	if (!tracer_enabled)
 		return;
 
-	raw_local_irq_save(flags);
+	local_irq_save(flags);
 	cpu = raw_smp_processor_id();
 	data = tr->data[cpu];
 	disabled = atomic_inc_return(&data->disabled);
@@ -38,7 +38,7 @@
 		tracing_sched_switch_trace(tr, data, prev, next, flags);
 
 	atomic_dec(&data->disabled);
-	raw_local_irq_restore(flags);
+	local_irq_restore(flags);
 }
 
 void ftrace_ctx_switch(struct task_struct *prev, struct task_struct *next)