event_filter_pid_sched_switch_probe_post 612 kernel/trace/trace_events.c unregister_trace_sched_switch(event_filter_pid_sched_switch_probe_post, tr); event_filter_pid_sched_switch_probe_post 1619 kernel/trace/trace_events.c register_trace_prio_sched_switch(event_filter_pid_sched_switch_probe_post,