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Commit e8dc6371 authored by Steven Rostedt (Red Hat)'s avatar Steven Rostedt (Red Hat) Committed by Steven Rostedt
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tracing: Fix counter for traceon/off event triggers 

The counters for the traceon and traceoff are only suppose to decrement
when the trigger enables or disables tracing. It is not suppose to decrement
every time the event is hit.

Only decrement the counter if the trigger actually did something.

Link: http://lkml.kernel.org/r/20140106223124.0e5fd0b4@gandalf.local.home



Acked-by: default avatarTom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 4bf0566d

kernel/trace/trace_events_trigger.c

+8 −2
Original line number Diff line number Diff line
@@ -742,13 +742,16 @@ traceon_trigger(struct event_trigger_data *data) 
static void

traceon_count_trigger(struct event_trigger_data *data)

{

	if (tracing_is_on())

		return;



	if (!data->count)

		return;



	if (data->count != -1)

		(data->count)--;



	traceon_trigger(data);

	tracing_on();

}



static void
@@ -763,13 +766,16 @@ traceoff_trigger(struct event_trigger_data *data) 
static void

traceoff_count_trigger(struct event_trigger_data *data)

{

	if (!tracing_is_on())

		return;



	if (!data->count)

		return;



	if (data->count != -1)

		(data->count)--;



	traceoff_trigger(data);

	tracing_off();

}



static int