Commit 0f72e37e authored by Steven Rostedt (Red Hat)'s avatar Steven Rostedt (Red Hat) Committed by Steven Rostedt
Browse files

tracing: Add sched_wakeup_new and sched_waking tracepoints for pid filter 



The set_event_pid filter relies on attaching to the sched_switch and
sched_wakeup tracepoints to see if it should filter the tracing on schedule
tracepoints. By adding the callbacks to sched_wakeup, pids in the
set_event_pid file will trace the wakeups of those tasks with those pids.

But sched_wakeup_new and sched_waking were missed. These two should also be
traced. Luckily, these tracepoints share the same class as sched_wakeup
which means they can use the same pre and post callbacks as sched_wakeup
does.

Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent bd1b7cd3

kernel/trace/trace_events.c

+16 −0
Original line number Diff line number Diff line
@@ -582,6 +582,12 @@ static void __ftrace_clear_event_pids(struct trace_array *tr) 
	unregister_trace_sched_wakeup(event_filter_pid_sched_wakeup_probe_pre, tr);

	unregister_trace_sched_wakeup(event_filter_pid_sched_wakeup_probe_post, tr);



	unregister_trace_sched_wakeup_new(event_filter_pid_sched_wakeup_probe_pre, tr);

	unregister_trace_sched_wakeup_new(event_filter_pid_sched_wakeup_probe_post, tr);



	unregister_trace_sched_waking(event_filter_pid_sched_wakeup_probe_pre, tr);

	unregister_trace_sched_waking(event_filter_pid_sched_wakeup_probe_post, tr);



	list_for_each_entry(file, &tr->events, list) {

		clear_bit(EVENT_FILE_FL_PID_FILTER_BIT, &file->flags);

	}
@@ -1729,6 +1735,16 @@ ftrace_event_pid_write(struct file *filp, const char __user *ubuf, 
						 tr, INT_MAX);

		register_trace_prio_sched_wakeup(event_filter_pid_sched_wakeup_probe_post,

						 tr, 0);



		register_trace_prio_sched_wakeup_new(event_filter_pid_sched_wakeup_probe_pre,

						     tr, INT_MAX);

		register_trace_prio_sched_wakeup_new(event_filter_pid_sched_wakeup_probe_post,

						     tr, 0);



		register_trace_prio_sched_waking(event_filter_pid_sched_wakeup_probe_pre,

						 tr, INT_MAX);

		register_trace_prio_sched_waking(event_filter_pid_sched_wakeup_probe_post,

						 tr, 0);

	}



	/*

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