72 static void __prepare_to_swait(struct swait_queue_head *q, struct swait_queue *wait)  in __prepare_to_swait()  argument
74 	wait->task = current;  in __prepare_to_swait()
75 	if (list_empty(&wait->task_list))  in __prepare_to_swait()
76 		list_add_tail(&wait->task_list, &q->task_list);  in __prepare_to_swait()
79 void prepare_to_swait_exclusive(struct swait_queue_head *q, struct swait_queue *wait, int state)  in prepare_to_swait_exclusive()  argument
84 	__prepare_to_swait(q, wait);  in prepare_to_swait_exclusive()
90 long prepare_to_swait_event(struct swait_queue_head *q, struct swait_queue *wait, int state)  in prepare_to_swait_event()  argument
101 		list_del_init(&wait->task_list);  in prepare_to_swait_event()
104 		__prepare_to_swait(q, wait);  in prepare_to_swait_event()
113 void __finish_swait(struct swait_queue_head *q, struct swait_queue *wait)  in __finish_swait()  argument
116 	if (!list_empty(&wait->task_list))  in __finish_swait()
117 		list_del_init(&wait->task_list);  in __finish_swait()
120 void finish_swait(struct swait_queue_head *q, struct swait_queue *wait)  in finish_swait()  argument
126 	if (!list_empty_careful(&wait->task_list)) {  in finish_swait()
128 		list_del_init(&wait->task_list);  in finish_swait()