tracing: do not update tracing_max_latency when tracer is stopped

[pandora-kernel.git] / kernel / trace / trace_irqsoff.c

diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index 06f8ea9..3aa7eaa 100644 (file)
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -157,8 +157,10 @@ check_critical_timing(struct trace_array *tr,
 
        data->critical_end = parent_ip;
 
-       tracing_max_latency = delta;
-       update_max_tr_single(tr, current, cpu);
+       if (likely(!is_tracing_stopped())) {
+               tracing_max_latency = delta;
+               update_max_tr_single(tr, current, cpu);
+       }
 
        max_sequence++;