48 static inline int system_refcount(struct event_subsystem *system)  in system_refcount()  argument
50 	return system->ref_count;  in system_refcount()
53 static int system_refcount_inc(struct event_subsystem *system)  in system_refcount_inc()  argument
55 	return system->ref_count++;  in system_refcount_inc()
58 static int system_refcount_dec(struct event_subsystem *system)  in system_refcount_dec()  argument
60 	return --system->ref_count;  in system_refcount_dec()
693 static void __put_system(struct event_subsystem *system)  in __put_system()  argument
695 	struct event_filter *filter = system->filter;  in __put_system()
697 	WARN_ON_ONCE(system_refcount(system) == 0);  in __put_system()
698 	if (system_refcount_dec(system))  in __put_system()
701 	list_del(&system->list);  in __put_system()
707 	kfree_const(system->name);  in __put_system()
708 	kfree(system);  in __put_system()
711 static void __get_system(struct event_subsystem *system)  in __get_system()  argument
713 	WARN_ON_ONCE(system_refcount(system) == 0);  in __get_system()
714 	system_refcount_inc(system);  in __get_system()
771 	remove_subsystem(file->system);  in remove_event_file_dir()
802 		    strcmp(match, call->class->system) != 0)  in __ftrace_set_clr_event_nolock()
805 		if (sub && strcmp(sub, call->class->system) != 0)  in __ftrace_set_clr_event_nolock()
891 int trace_set_clr_event(const char *system, const char *event, int set)  in trace_set_clr_event()  argument
898 	return __ftrace_set_clr_event(tr, NULL, system, event, set);  in trace_set_clr_event()
915 int trace_array_set_clr_event(struct trace_array *tr, const char *system,  in trace_array_set_clr_event()  argument
924 	return __ftrace_set_clr_event(tr, NULL, system, event, set);  in trace_array_set_clr_event()
1049 	if (strcmp(call->class->system, TRACE_SYSTEM) != 0)  in t_show()
1050 		seq_printf(m, "%s:", call->class->system);  in t_show()
1204 	struct event_subsystem *system = dir->subsystem;  in system_enable_read()  local
1218 		if (system && strcmp(call->class->system, system->name) != 0)  in system_enable_read()
1249 	struct event_subsystem *system = dir->subsystem;  in system_enable_write()  local
1269 	if (system)  in system_enable_write()
1270 		name = system->name;  in system_enable_write()
1499 	struct event_subsystem *system = NULL;  in subsystem_open()  local
1516 					system = dir->subsystem;  in subsystem_open()
1526 	if (!system)  in subsystem_open()
1593 	struct event_subsystem *system = dir->subsystem;  in subsystem_filter_read()  local
1606 	print_subsystem_event_filter(system, s);  in subsystem_filter_read()
2022 	struct event_subsystem *system;  in create_new_subsystem()  local
2025 	system = kmalloc(sizeof(*system), GFP_KERNEL);  in create_new_subsystem()
2026 	if (!system)  in create_new_subsystem()
2029 	system->ref_count = 1;  in create_new_subsystem()
2032 	system->name = kstrdup_const(name, GFP_KERNEL);  in create_new_subsystem()
2033 	if (!system->name)  in create_new_subsystem()
2036 	system->filter = NULL;  in create_new_subsystem()
2038 	system->filter = kzalloc(sizeof(struct event_filter), GFP_KERNEL);  in create_new_subsystem()
2039 	if (!system->filter)  in create_new_subsystem()
2042 	list_add(&system->list, &event_subsystems);  in create_new_subsystem()
2044 	return system;  in create_new_subsystem()
2047 	kfree_const(system->name);  in create_new_subsystem()
2048 	kfree(system);  in create_new_subsystem()
2057 	struct event_subsystem *system;  in event_subsystem_dir()  local
2062 		system = dir->subsystem;  in event_subsystem_dir()
2063 		if (strcmp(system->name, name) == 0) {  in event_subsystem_dir()
2065 			file->system = dir;  in event_subsystem_dir()
2071 	list_for_each_entry(system, &event_subsystems, list) {  in event_subsystem_dir()
2072 		if (strcmp(system->name, name) == 0)  in event_subsystem_dir()
2076 	if (&system->list == &event_subsystems)  in event_subsystem_dir()
2077 		system = NULL;  in event_subsystem_dir()
2083 	if (!system) {  in event_subsystem_dir()
2084 		system = create_new_subsystem(name);  in event_subsystem_dir()
2085 		if (!system)  in event_subsystem_dir()
2088 		__get_system(system);  in event_subsystem_dir()
2093 		__put_system(system);  in event_subsystem_dir()
2100 	dir->subsystem = system;  in event_subsystem_dir()
2101 	file->system = dir;  in event_subsystem_dir()
2106 		kfree(system->filter);  in event_subsystem_dir()
2107 		system->filter = NULL;  in event_subsystem_dir()
2122 	if (!dir || !system)  in event_subsystem_dir()
2177 	if (strcmp(call->class->system, TRACE_SYSTEM) != 0) {  in event_create_dir()
2178 		d_events = event_subsystem_dir(tr, call->class->system, file, parent);  in event_create_dir()
2430 		if (!last_system || call->class->system != last_system) {  in trace_event_eval_update()
2433 			last_system = call->class->system;  in trace_event_eval_update()
2447 			if (call->class->system == map[i]->system) {  in trace_event_eval_update()
2690 __find_event_file(struct trace_array *tr, const char *system, const char *event)  in __find_event_file()  argument
2705 		    strcmp(system, call->class->system) == 0)  in __find_event_file()
2713 find_event_file(struct trace_array *tr, const char *system, const char *event)  in find_event_file()  argument
2717 	file = __find_event_file(tr, system, event);  in find_event_file()
2746 					      const char *system,  in trace_get_event_file()  argument
2765 	file = find_event_file(tr, system, event);  in trace_get_event_file()
2895 		   edata->file->event_call->class->system,  in event_enable_print()
3004 	const char *system;  in event_enable_func()  local
3017 	system = strsep(&param, ":");  in event_enable_func()
3026 	file = find_event_file(tr, system, event);  in event_enable_func()
3563 	struct event_subsystem *system;  in event_trace_self_tests()  local
3588 		if (call->class->system &&  in event_trace_self_tests()
3589 		    strcmp(call->class->system, "syscalls") == 0)  in event_trace_self_tests()
3618 		system = dir->subsystem;  in event_trace_self_tests()
3621 		if (strcmp(system->name, "ftrace") == 0)  in event_trace_self_tests()
3624 		pr_info("Testing event system %s: ", system->name);  in event_trace_self_tests()
3626 		ret = __ftrace_set_clr_event(tr, NULL, system->name, NULL, 1);  in event_trace_self_tests()
3629 				system->name);  in event_trace_self_tests()
3635 		ret = __ftrace_set_clr_event(tr, NULL, system->name, NULL, 0);  in event_trace_self_tests()
3638 				system->name);  in event_trace_self_tests()