event_filter_pid_sched_switch_probe_pre  611 kernel/trace/trace_events.c 	unregister_trace_sched_switch(event_filter_pid_sched_switch_probe_pre, tr);
event_filter_pid_sched_switch_probe_pre 1617 kernel/trace/trace_events.c 		register_trace_prio_sched_switch(event_filter_pid_sched_switch_probe_pre,