212 	struct semaphore_waiter waiter;  in ___down_common()  local
214 	list_add_tail(&waiter.list, &sem->wait_list);  in ___down_common()
215 	waiter.task = current;  in ___down_common()
216 	waiter.up = false;  in ___down_common()
227 		if (waiter.up)  in ___down_common()
232 	list_del(&waiter.list);  in ___down_common()
236 	list_del(&waiter.list);  in ___down_common()
274 	struct semaphore_waiter *waiter = list_first_entry(&sem->wait_list,  in __up()  local
276 	list_del(&waiter->list);  in __up()
277 	waiter->up = true;  in __up()
278 	wake_up_process(waiter->task);  in __up()