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Commit 3f1140bf authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "trace: Add trace points for tasklet entry/exit"

parents e4ab9297 e9fa599d

include/trace/events/irq.h

+45 −0
Original line number Diff line number Diff line
@@ -160,6 +160,51 @@ DEFINE_EVENT(softirq, softirq_raise, 
	TP_ARGS(vec_nr)

);



DECLARE_EVENT_CLASS(tasklet,



	TP_PROTO(void *func),



	TP_ARGS(func),



	TP_STRUCT__entry(

		__field( void *,	func)

	),



	TP_fast_assign(

		__entry->func = func;

	),



	TP_printk("function=%ps", __entry->func)

);



DEFINE_EVENT(tasklet, tasklet_entry,



	TP_PROTO(void *func),



	TP_ARGS(func)

);



DEFINE_EVENT(tasklet, tasklet_exit,



	TP_PROTO(void *func),



	TP_ARGS(func)

);



DEFINE_EVENT(tasklet, tasklet_hi_entry,



	TP_PROTO(void *func),



	TP_ARGS(func)

);



DEFINE_EVENT(tasklet, tasklet_hi_exit,



	TP_PROTO(void *func),



	TP_ARGS(func)

);



#endif /*  _TRACE_IRQ_H */



/* This part must be outside protection */

kernel/softirq.c

+2 −0
Original line number Diff line number Diff line
@@ -523,7 +523,9 @@ static void tasklet_action_common(struct softirq_action *a, 
				if (!test_and_clear_bit(TASKLET_STATE_SCHED,

							&t->state))

					BUG();

				trace_tasklet_entry(t->func);

				t->func(t->data);

				trace_tasklet_exit(t->func);

				tasklet_unlock(t);

				continue;

			}