62 #define do_for_each_event_file(tr, file)			\  argument
63 	list_for_each_entry(tr, &ftrace_trace_arrays, list) {	\
64 		list_for_each_entry(file, &tr->events, list)
66 #define do_for_each_event_file_safe(tr, file)			\  argument
67 	list_for_each_entry(tr, &ftrace_trace_arrays, list) {	\
69 		list_for_each_entry_safe(file, ___n, &tr->events, list)
232 	struct trace_array *tr = trace_file->tr;  in trace_event_ignore_this_pid()  local
236 	pid_list = rcu_dereference_raw(tr->filtered_pids);  in trace_event_ignore_this_pid()
240 	data = this_cpu_ptr(tr->trace_buffer.data);  in trace_event_ignore_this_pid()
321 	struct trace_array *tr;  in trace_event_enable_cmd_record()  local
324 	do_for_each_event_file(tr, file) {  in trace_event_enable_cmd_record()
343 	struct trace_array *tr;  in trace_event_enable_tgid_record()  local
346 	do_for_each_event_file(tr, file) {  in trace_event_enable_tgid_record()
366 	struct trace_array *tr = file->tr;  in __ftrace_event_enable_disable()  local
438 			if (tr->trace_flags & TRACE_ITER_RECORD_CMD) {  in __ftrace_event_enable_disable()
444 			if (tr->trace_flags & TRACE_ITER_RECORD_TGID) {  in __ftrace_event_enable_disable()
492 static void ftrace_clear_events(struct trace_array *tr)  in ftrace_clear_events()  argument
497 	list_for_each_entry(file, &tr->events, list) {  in ftrace_clear_events()
507 	struct trace_array *tr = data;  in event_filter_pid_sched_process_exit()  local
509 	pid_list = rcu_dereference_raw(tr->filtered_pids);  in event_filter_pid_sched_process_exit()
519 	struct trace_array *tr = data;  in event_filter_pid_sched_process_fork()  local
521 	pid_list = rcu_dereference_sched(tr->filtered_pids);  in event_filter_pid_sched_process_fork()
525 void trace_event_follow_fork(struct trace_array *tr, bool enable)  in trace_event_follow_fork()  argument
529 						       tr, INT_MIN);  in trace_event_follow_fork()
531 						       tr, INT_MAX);  in trace_event_follow_fork()
534 						    tr);  in trace_event_follow_fork()
536 						    tr);  in trace_event_follow_fork()
544 	struct trace_array *tr = data;  in event_filter_pid_sched_switch_probe_pre()  local
547 	pid_list = rcu_dereference_sched(tr->filtered_pids);  in event_filter_pid_sched_switch_probe_pre()
549 	this_cpu_write(tr->trace_buffer.data->ignore_pid,  in event_filter_pid_sched_switch_probe_pre()
558 	struct trace_array *tr = data;  in event_filter_pid_sched_switch_probe_post()  local
561 	pid_list = rcu_dereference_sched(tr->filtered_pids);  in event_filter_pid_sched_switch_probe_post()
563 	this_cpu_write(tr->trace_buffer.data->ignore_pid,  in event_filter_pid_sched_switch_probe_post()
570 	struct trace_array *tr = data;  in event_filter_pid_sched_wakeup_probe_pre()  local
574 	if (!this_cpu_read(tr->trace_buffer.data->ignore_pid))  in event_filter_pid_sched_wakeup_probe_pre()
577 	pid_list = rcu_dereference_sched(tr->filtered_pids);  in event_filter_pid_sched_wakeup_probe_pre()
579 	this_cpu_write(tr->trace_buffer.data->ignore_pid,  in event_filter_pid_sched_wakeup_probe_pre()
586 	struct trace_array *tr = data;  in event_filter_pid_sched_wakeup_probe_post()  local
590 	if (this_cpu_read(tr->trace_buffer.data->ignore_pid))  in event_filter_pid_sched_wakeup_probe_post()
593 	pid_list = rcu_dereference_sched(tr->filtered_pids);  in event_filter_pid_sched_wakeup_probe_post()
596 	this_cpu_write(tr->trace_buffer.data->ignore_pid,  in event_filter_pid_sched_wakeup_probe_post()
600 static void __ftrace_clear_event_pids(struct trace_array *tr)  in __ftrace_clear_event_pids()  argument
606 	pid_list = rcu_dereference_protected(tr->filtered_pids,  in __ftrace_clear_event_pids()
611 	unregister_trace_sched_switch(event_filter_pid_sched_switch_probe_pre, tr);  in __ftrace_clear_event_pids()
612 	unregister_trace_sched_switch(event_filter_pid_sched_switch_probe_post, tr);  in __ftrace_clear_event_pids()
614 	unregister_trace_sched_wakeup(event_filter_pid_sched_wakeup_probe_pre, tr);  in __ftrace_clear_event_pids()
615 	unregister_trace_sched_wakeup(event_filter_pid_sched_wakeup_probe_post, tr);  in __ftrace_clear_event_pids()
617 	unregister_trace_sched_wakeup_new(event_filter_pid_sched_wakeup_probe_pre, tr);  in __ftrace_clear_event_pids()
618 	unregister_trace_sched_wakeup_new(event_filter_pid_sched_wakeup_probe_post, tr);  in __ftrace_clear_event_pids()
620 	unregister_trace_sched_waking(event_filter_pid_sched_wakeup_probe_pre, tr);  in __ftrace_clear_event_pids()
621 	unregister_trace_sched_waking(event_filter_pid_sched_wakeup_probe_post, tr);  in __ftrace_clear_event_pids()
623 	list_for_each_entry(file, &tr->events, list) {  in __ftrace_clear_event_pids()
628 		per_cpu_ptr(tr->trace_buffer.data, cpu)->ignore_pid = false;  in __ftrace_clear_event_pids()
630 	rcu_assign_pointer(tr->filtered_pids, NULL);  in __ftrace_clear_event_pids()
638 static void ftrace_clear_event_pids(struct trace_array *tr)  in ftrace_clear_event_pids()  argument
641 	__ftrace_clear_event_pids(tr);  in ftrace_clear_event_pids()
732 __ftrace_set_clr_event_nolock(struct trace_array *tr, const char *match,  in __ftrace_set_clr_event_nolock()  argument
741 	list_for_each_entry(file, &tr->events, list) {  in __ftrace_set_clr_event_nolock()
779 static int __ftrace_set_clr_event(struct trace_array *tr, const char *match,  in __ftrace_set_clr_event()  argument
785 	ret = __ftrace_set_clr_event_nolock(tr, match, sub, event, set);  in __ftrace_set_clr_event()
791 int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set)  in ftrace_set_clr_event()  argument
820 	ret = __ftrace_set_clr_event(tr, match, sub, event, set);  in ftrace_set_clr_event()
844 	struct trace_array *tr = top_trace_array();  in trace_set_clr_event()  local
846 	if (!tr)  in trace_set_clr_event()
849 	return __ftrace_set_clr_event(tr, NULL, system, event, set);  in trace_set_clr_event()
862 	struct trace_array *tr = m->private;  in ftrace_event_write()  local
883 		ret = ftrace_set_clr_event(tr, parser.buffer + !set, set);  in ftrace_event_write()
901 	struct trace_array *tr = m->private;  in t_next()  local
905 	list_for_each_entry_continue(file, &tr->events, list) {  in t_next()
922 	struct trace_array *tr = m->private;  in t_start()  local
927 	file = list_entry(&tr->events, struct trace_event_file, list);  in t_start()
940 	struct trace_array *tr = m->private;  in s_next()  local
944 	list_for_each_entry_continue(file, &tr->events, list) {  in s_next()
955 	struct trace_array *tr = m->private;  in s_start()  local
960 	file = list_entry(&tr->events, struct trace_event_file, list);  in s_start()
989 	struct trace_array *tr = m->private;  in p_next()  local
990 	struct trace_pid_list *pid_list = rcu_dereference_sched(tr->filtered_pids);  in p_next()
999 	struct trace_array *tr = m->private;  in p_start()  local
1010 	pid_list = rcu_dereference_sched(tr->filtered_pids);  in p_start()
1100 	struct trace_array *tr = dir->tr;  in system_enable_read()  local
1106 	list_for_each_entry(file, &tr->events, list) {  in system_enable_read()
1165 	ret = __ftrace_set_clr_event(dir->tr, NULL, name, NULL, val);  in system_enable_write()
1394 	struct trace_array *tr;  in subsystem_open()  local
1403 	list_for_each_entry(tr, &ftrace_trace_arrays, list) {  in subsystem_open()
1404 		list_for_each_entry(dir, &tr->systems, list) {  in subsystem_open()
1426 	if (trace_array_get(tr) < 0) {  in subsystem_open()
1433 		trace_array_put(tr);  in subsystem_open()
1443 	struct trace_array *tr = inode->i_private;  in system_tr_open()  local
1456 	dir->tr = tr;  in system_tr_open()
1466 	trace_array_put(dir->tr);  in subsystem_release()
1560 	struct trace_array *tr = data;  in ignore_task_cpu()  local
1567 	pid_list = rcu_dereference_protected(tr->filtered_pids,  in ignore_task_cpu()
1570 	this_cpu_write(tr->trace_buffer.data->ignore_pid,  in ignore_task_cpu()
1579 	struct trace_array *tr = m->private;  in ftrace_event_pid_write()  local
1594 	filtered_pids = rcu_dereference_protected(tr->filtered_pids,  in ftrace_event_pid_write()
1601 	rcu_assign_pointer(tr->filtered_pids, pid_list);  in ftrace_event_pid_write()
1603 	list_for_each_entry(file, &tr->events, list) {  in ftrace_event_pid_write()
1618 						 tr, INT_MAX);  in ftrace_event_pid_write()
1620 						 tr, 0);  in ftrace_event_pid_write()
1623 						 tr, INT_MAX);  in ftrace_event_pid_write()
1625 						 tr, 0);  in ftrace_event_pid_write()
1628 						     tr, INT_MAX);  in ftrace_event_pid_write()
1630 						     tr, 0);  in ftrace_event_pid_write()
1633 						 tr, INT_MAX);  in ftrace_event_pid_write()
1635 						 tr, 0);  in ftrace_event_pid_write()
1643 	on_each_cpu(ignore_task_cpu, tr, 1);  in ftrace_event_pid_write()
1782 	struct trace_array *tr = inode->i_private;  in ftrace_event_release()  local
1784 	trace_array_put(tr);  in ftrace_event_release()
1802 	struct trace_array *tr = inode->i_private;  in ftrace_event_set_open()  local
1805 	ret = tracing_check_open_get_tr(tr);  in ftrace_event_set_open()
1811 		ftrace_clear_events(tr);  in ftrace_event_set_open()
1815 		trace_array_put(tr);  in ftrace_event_set_open()
1823 	struct trace_array *tr = inode->i_private;  in ftrace_event_set_pid_open()  local
1826 	ret = tracing_check_open_get_tr(tr);  in ftrace_event_set_pid_open()
1832 		ftrace_clear_event_pids(tr);  in ftrace_event_set_pid_open()
1836 		trace_array_put(tr);  in ftrace_event_set_pid_open()
1874 event_subsystem_dir(struct trace_array *tr, const char *name,  in event_subsystem_dir()  argument
1882 	list_for_each_entry(dir, &tr->systems, list) {  in event_subsystem_dir()
1918 	dir->tr = tr;  in event_subsystem_dir()
1935 	list_add(&dir->list, &tr->systems);  in event_subsystem_dir()
1952 	struct trace_array *tr = file->tr;  in event_create_dir()  local
1963 		d_events = event_subsystem_dir(tr, call->class->system, file, parent);  in event_create_dir()
2026 	struct trace_array *tr;  in remove_event_from_tracers()  local
2028 	do_for_each_event_file_safe(tr, file) {  in remove_event_from_tracers()
2045 	struct trace_array *tr;  in event_remove()  local
2048 	do_for_each_event_file(tr, file) {  in event_remove()
2053 			tr->clear_trace = true;  in event_remove()
2245 		       struct trace_array *tr)  in trace_create_new_event()  argument
2254 	file->tr = tr;  in trace_create_new_event()
2258 	list_add(&file->list, &tr->events);  in trace_create_new_event()
2265 __trace_add_new_event(struct trace_event_call *call, struct trace_array *tr)  in __trace_add_new_event()  argument
2269 	file = trace_create_new_event(call, tr);  in __trace_add_new_event()
2273 	return event_create_dir(tr->event_dir, file);  in __trace_add_new_event()
2283 			    struct trace_array *tr)  in __trace_early_add_new_event()  argument
2287 	file = trace_create_new_event(call, tr);  in __trace_early_add_new_event()
2327 	struct trace_array *tr;  in probe_remove_event_call()  local
2334 	do_for_each_event_file(tr, file) {  in probe_remove_event_call()
2455 __trace_add_event_dirs(struct trace_array *tr)  in __trace_add_event_dirs()  argument
2461 		ret = __trace_add_new_event(call, tr);  in __trace_add_event_dirs()
2470 __find_event_file(struct trace_array *tr, const char *system, const char *event)  in __find_event_file()  argument
2476 	list_for_each_entry(file, &tr->events, list) {  in __find_event_file()
2493 find_event_file(struct trace_array *tr, const char *system, const char *event)  in find_event_file()  argument
2497 	file = __find_event_file(tr, system, event);  in find_event_file()
2528 		   struct trace_array *tr, struct ftrace_probe_ops *ops,  in event_enable_probe()  argument
2545 			 struct trace_array *tr, struct ftrace_probe_ops *ops,  in event_enable_count_probe()  argument
2602 event_enable_init(struct ftrace_probe_ops *ops, struct trace_array *tr,  in event_enable_init()  argument
2640 event_enable_free(struct ftrace_probe_ops *ops, struct trace_array *tr,  in event_enable_free()  argument
2693 event_enable_func(struct trace_array *tr, struct ftrace_hash *hash,  in event_enable_func()  argument
2705 	if (!tr)  in event_enable_func()
2721 	file = find_event_file(tr, system, event);  in event_enable_func()
2733 		ret = unregister_ftrace_function_probe_func(glob+1, tr, ops);  in event_enable_func()
2776 	ret = register_ftrace_function_probe(glob, tr, ops, data);  in event_enable_func()
2836 __trace_early_add_event_dirs(struct trace_array *tr)  in __trace_early_add_event_dirs()  argument
2842 	list_for_each_entry(file, &tr->events, list) {  in __trace_early_add_event_dirs()
2843 		ret = event_create_dir(tr->event_dir, file);  in __trace_early_add_event_dirs()
2857 __trace_early_add_events(struct trace_array *tr)  in __trace_early_add_events()  argument
2867 		ret = __trace_early_add_new_event(call, tr);  in __trace_early_add_events()
2876 __trace_remove_event_dirs(struct trace_array *tr)  in __trace_remove_event_dirs()  argument
2880 	list_for_each_entry_safe(file, next, &tr->events, list)  in __trace_remove_event_dirs()
2886 	struct trace_array *tr;  in __add_event_to_tracers()  local
2888 	list_for_each_entry(tr, &ftrace_trace_arrays, list)  in __add_event_to_tracers()
2889 		__trace_add_new_event(call, tr);  in __add_event_to_tracers()
2909 create_event_toplevel_files(struct dentry *parent, struct trace_array *tr)  in create_event_toplevel_files()  argument
2915 				    tr, &ftrace_set_event_fops);  in create_event_toplevel_files()
2928 				  tr, &ftrace_tr_enable_fops);  in create_event_toplevel_files()
2937 				    tr, &ftrace_set_event_pid_fops);  in create_event_toplevel_files()
2954 	tr->event_dir = d_events;  in create_event_toplevel_files()
2972 int event_trace_add_tracer(struct dentry *parent, struct trace_array *tr)  in event_trace_add_tracer()  argument
2978 	ret = create_event_toplevel_files(parent, tr);  in event_trace_add_tracer()
2983 	__trace_add_event_dirs(tr);  in event_trace_add_tracer()
2995 early_event_add_tracer(struct dentry *parent, struct trace_array *tr)  in early_event_add_tracer()  argument
3001 	ret = create_event_toplevel_files(parent, tr);  in early_event_add_tracer()
3006 	__trace_early_add_event_dirs(tr);  in early_event_add_tracer()
3016 int event_trace_del_tracer(struct trace_array *tr)  in event_trace_del_tracer()  argument
3021 	clear_event_triggers(tr);  in event_trace_del_tracer()
3024 	__ftrace_clear_event_pids(tr);  in event_trace_del_tracer()
3027 	__ftrace_set_clr_event_nolock(tr, NULL, NULL, NULL, 0);  in event_trace_del_tracer()
3033 	__trace_remove_event_dirs(tr);  in event_trace_del_tracer()
3034 	tracefs_remove_recursive(tr->event_dir);  in event_trace_del_tracer()
3037 	tr->event_dir = NULL;  in event_trace_del_tracer()
3050 early_enable_events(struct trace_array *tr, bool disable_first)  in early_enable_events()  argument
3065 				ftrace_set_clr_event(tr, token, 0);  in early_enable_events()
3067 			ret = ftrace_set_clr_event(tr, token, 1);  in early_enable_events()
3080 	struct trace_array *tr = top_trace_array();  in event_trace_enable()  local
3084 	if (!tr)  in event_trace_enable()
3101 	__trace_early_add_events(tr);  in event_trace_enable()
3103 	early_enable_events(tr, false);  in event_trace_enable()
3126 	struct trace_array *tr;  in event_trace_enable_again()  local
3128 	tr = top_trace_array();  in event_trace_enable_again()
3129 	if (!tr)  in event_trace_enable_again()
3132 	early_enable_events(tr, true);  in event_trace_enable_again()
3141 	struct trace_array *tr;  in event_trace_init()  local
3146 	tr = top_trace_array();  in event_trace_init()
3147 	if (!tr)  in event_trace_init()
3155 				    tr, &ftrace_avail_fops);  in event_trace_init()
3165 	ret = early_event_add_tracer(d_tracer, tr);  in event_trace_init()
3247 	struct trace_array *tr;  in event_trace_self_tests()  local
3250 	tr = top_trace_array();  in event_trace_self_tests()
3251 	if (!tr)  in event_trace_self_tests()
3256 	list_for_each_entry(file, &tr->events, list) {  in event_trace_self_tests()
3299 	list_for_each_entry(dir, &tr->systems, list) {  in event_trace_self_tests()
3309 		ret = __ftrace_set_clr_event(tr, NULL, system->name, NULL, 1);  in event_trace_self_tests()
3318 		ret = __ftrace_set_clr_event(tr, NULL, system->name, NULL, 0);  in event_trace_self_tests()
3333 	ret = __ftrace_set_clr_event(tr, NULL, NULL, NULL, 1);  in event_trace_self_tests()
3342 	ret = __ftrace_set_clr_event(tr, NULL, NULL, NULL, 0);  in event_trace_self_tests()
3405 	event_trace_file.tr = top_trace_array();  in event_trace_self_test_with_function()
3406 	if (WARN_ON(!event_trace_file.tr))  in event_trace_self_test_with_function()