24 static int perf_trace_event_perm(struct ftrace_event_call *tp_event,  in perf_trace_event_perm()  argument
28 	if (ftrace_event_is_function(tp_event) &&  in perf_trace_event_perm()
38 		if (tp_event->flags & TRACE_EVENT_FL_CAP_ANY)  in perf_trace_event_perm()
52 static int perf_trace_event_reg(struct ftrace_event_call *tp_event,  in perf_trace_event_reg()  argument
59 	p_event->tp_event = tp_event;  in perf_trace_event_reg()
60 	if (tp_event->perf_refcount++ > 0)  in perf_trace_event_reg()
70 	tp_event->perf_events = list;  in perf_trace_event_reg()
85 	ret = tp_event->class->reg(tp_event, TRACE_REG_PERF_REGISTER, NULL);  in perf_trace_event_reg()
102 	if (!--tp_event->perf_refcount) {  in perf_trace_event_reg()
103 		free_percpu(tp_event->perf_events);  in perf_trace_event_reg()
104 		tp_event->perf_events = NULL;  in perf_trace_event_reg()
112 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_event_unreg()  local
115 	if (--tp_event->perf_refcount > 0)  in perf_trace_event_unreg()
118 	tp_event->class->reg(tp_event, TRACE_REG_PERF_UNREGISTER, NULL);  in perf_trace_event_unreg()
126 	free_percpu(tp_event->perf_events);  in perf_trace_event_unreg()
127 	tp_event->perf_events = NULL;  in perf_trace_event_unreg()
136 	module_put(tp_event->mod);  in perf_trace_event_unreg()
141 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_event_open()  local
142 	return tp_event->class->reg(tp_event, TRACE_REG_PERF_OPEN, p_event);  in perf_trace_event_open()
147 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_event_close()  local
148 	tp_event->class->reg(tp_event, TRACE_REG_PERF_CLOSE, p_event);  in perf_trace_event_close()
151 static int perf_trace_event_init(struct ftrace_event_call *tp_event,  in perf_trace_event_init()  argument
156 	ret = perf_trace_event_perm(tp_event, p_event);  in perf_trace_event_init()
160 	ret = perf_trace_event_reg(tp_event, p_event);  in perf_trace_event_init()
175 	struct ftrace_event_call *tp_event;  in perf_trace_init()  local
180 	list_for_each_entry(tp_event, &ftrace_events, list) {  in perf_trace_init()
181 		if (tp_event->event.type == event_id &&  in perf_trace_init()
182 		    tp_event->class && tp_event->class->reg &&  in perf_trace_init()
183 		    try_module_get(tp_event->mod)) {  in perf_trace_init()
184 			ret = perf_trace_event_init(tp_event, p_event);  in perf_trace_init()
186 				module_put(tp_event->mod);  in perf_trace_init()
205 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_add()  local
209 	pcpu_list = tp_event->perf_events;  in perf_trace_add()
219 	return tp_event->class->reg(tp_event, TRACE_REG_PERF_ADD, p_event);  in perf_trace_add()
224 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_del()  local
226 	tp_event->class->reg(tp_event, TRACE_REG_PERF_DEL, p_event);  in perf_trace_del()