10         struct list_head *prev, *next;  member
13 #define INIT_LIST_HEAD(l) do {  (l)->prev = (l)->next = (l); } while (0)
16 __list_add(struct list_head *o, struct list_head *prev,  in __list_add()  argument
19         next->prev = o;  in __list_add()
21         o->prev = prev;  in __list_add()
22         prev->next = o;  in __list_add()
28         __list_add(o, head->prev, head);  in list_add_tail()
35 __list_del(struct list_head *prev, struct list_head *next)  in __list_del()  argument
37         next->prev = prev;  in __list_del()
38         prev->next = next;  in __list_del()
45         __list_del(entry->prev, entry->next);  in list_del()
46         entry->next = entry->prev = NULL;  in list_del()