trace_event_enable_disable
extern int trace_event_enable_disable(struct trace_event_file *file,
if (trace_event_enable_disable(file, 1, 0) < 0)
trace_event_enable_disable(enable_data->file, 0, 1);
ret = trace_event_enable_disable(event_enable_file, 1, 1);
trace_event_enable_disable(event_enable_file, 0, 1);
ret = trace_event_enable_disable(file, 1, 1);
ret = trace_event_enable_disable(file, 0, 1);
trace_event_enable_disable(file, 1, 0);