45 static inline int system_refcount(struct event_subsystem *system)  in system_refcount()  argument
47 	return system->ref_count;  in system_refcount()
50 static int system_refcount_inc(struct event_subsystem *system)  in system_refcount_inc()  argument
52 	return system->ref_count++;  in system_refcount_inc()
55 static int system_refcount_dec(struct event_subsystem *system)  in system_refcount_dec()  argument
57 	return --system->ref_count;  in system_refcount_dec()
616 static void __put_system(struct event_subsystem *system)  in __put_system()  argument
618 	struct event_filter *filter = system->filter;  in __put_system()
620 	WARN_ON_ONCE(system_refcount(system) == 0);  in __put_system()
621 	if (system_refcount_dec(system))  in __put_system()
624 	list_del(&system->list);  in __put_system()
630 	kfree_const(system->name);  in __put_system()
631 	kfree(system);  in __put_system()
634 static void __get_system(struct event_subsystem *system)  in __get_system()  argument
636 	WARN_ON_ONCE(system_refcount(system) == 0);  in __get_system()
637 	system_refcount_inc(system);  in __get_system()
694 	remove_subsystem(file->system);  in remove_event_file_dir()
724 		    strcmp(match, call->class->system) != 0)  in __ftrace_set_clr_event_nolock()
727 		if (sub && strcmp(sub, call->class->system) != 0)  in __ftrace_set_clr_event_nolock()
803 int trace_set_clr_event(const char *system, const char *event, int set)  in trace_set_clr_event()  argument
810 	return __ftrace_set_clr_event(tr, NULL, system, event, set);  in trace_set_clr_event()
937 	if (strcmp(call->class->system, TRACE_SYSTEM) != 0)  in t_show()
938 		seq_printf(m, "%s:", call->class->system);  in t_show()
1073 	struct event_subsystem *system = dir->subsystem;  in system_enable_read()  local
1087 		if (system && strcmp(call->class->system, system->name) != 0)  in system_enable_read()
1118 	struct event_subsystem *system = dir->subsystem;  in system_enable_write()  local
1138 	if (system)  in system_enable_write()
1139 		name = system->name;  in system_enable_write()
1375 	struct event_subsystem *system = NULL;  in subsystem_open()  local
1392 					system = dir->subsystem;  in subsystem_open()
1402 	if (!system)  in subsystem_open()
1480 	struct event_subsystem *system = dir->subsystem;  in subsystem_filter_read()  local
1493 	print_subsystem_event_filter(system, s);  in subsystem_filter_read()
1950 	struct event_subsystem *system;  in create_new_subsystem()  local
1953 	system = kmalloc(sizeof(*system), GFP_KERNEL);  in create_new_subsystem()
1954 	if (!system)  in create_new_subsystem()
1957 	system->ref_count = 1;  in create_new_subsystem()
1960 	system->name = kstrdup_const(name, GFP_KERNEL);  in create_new_subsystem()
1961 	if (!system->name)  in create_new_subsystem()
1964 	system->filter = NULL;  in create_new_subsystem()
1966 	system->filter = kzalloc(sizeof(struct event_filter), GFP_KERNEL);  in create_new_subsystem()
1967 	if (!system->filter)  in create_new_subsystem()
1970 	list_add(&system->list, &event_subsystems);  in create_new_subsystem()
1972 	return system;  in create_new_subsystem()
1975 	kfree_const(system->name);  in create_new_subsystem()
1976 	kfree(system);  in create_new_subsystem()
1985 	struct event_subsystem *system;  in event_subsystem_dir()  local
1990 		system = dir->subsystem;  in event_subsystem_dir()
1991 		if (strcmp(system->name, name) == 0) {  in event_subsystem_dir()
1993 			file->system = dir;  in event_subsystem_dir()
1999 	list_for_each_entry(system, &event_subsystems, list) {  in event_subsystem_dir()
2000 		if (strcmp(system->name, name) == 0)  in event_subsystem_dir()
2004 	if (&system->list == &event_subsystems)  in event_subsystem_dir()
2005 		system = NULL;  in event_subsystem_dir()
2011 	if (!system) {  in event_subsystem_dir()
2012 		system = create_new_subsystem(name);  in event_subsystem_dir()
2013 		if (!system)  in event_subsystem_dir()
2016 		__get_system(system);  in event_subsystem_dir()
2021 		__put_system(system);  in event_subsystem_dir()
2028 	dir->subsystem = system;  in event_subsystem_dir()
2029 	file->system = dir;  in event_subsystem_dir()
2034 		kfree(system->filter);  in event_subsystem_dir()
2035 		system->filter = NULL;  in event_subsystem_dir()
2050 	if (!dir || !system)  in event_subsystem_dir()
2069 	if (strcmp(call->class->system, TRACE_SYSTEM) != 0) {  in event_create_dir()
2070 		d_events = event_subsystem_dir(tr, call->class->system, file, parent);  in event_create_dir()
2309 		if (!last_system || call->class->system != last_system) {  in trace_event_enum_update()
2311 			last_system = call->class->system;  in trace_event_enum_update()
2315 			if (call->class->system == map[i]->system) {  in trace_event_enum_update()
2557 find_event_file(struct trace_array *tr, const char *system,  const char *event)  in find_event_file()  argument
2575 		    strcmp(system, call->class->system) == 0)  in find_event_file()
2641 		   data->file->event_call->class->system,  in event_enable_print()
2719 	const char *system;  in event_enable_func()  local
2732 	system = strsep(&param, ":");  in event_enable_func()
2741 	file = find_event_file(tr, system, event);  in event_enable_func()
3256 	struct event_subsystem *system;  in event_trace_self_tests()  local
3281 		if (call->class->system &&  in event_trace_self_tests()
3282 		    strcmp(call->class->system, "syscalls") == 0)  in event_trace_self_tests()
3311 		system = dir->subsystem;  in event_trace_self_tests()
3314 		if (strcmp(system->name, "ftrace") == 0)  in event_trace_self_tests()
3317 		pr_info("Testing event system %s: ", system->name);  in event_trace_self_tests()
3319 		ret = __ftrace_set_clr_event(tr, NULL, system->name, NULL, 1);  in event_trace_self_tests()
3322 				system->name);  in event_trace_self_tests()
3328 		ret = __ftrace_set_clr_event(tr, NULL, system->name, NULL, 0);  in event_trace_self_tests()
3331 				system->name);  in event_trace_self_tests()