22 			tail = &a->next;  in merge()
23 			a = a->next;  in merge()
30 			tail = &b->next;  in merge()
31 			b = b->next;  in merge()
58 			tail->next = a;  in merge_final()
61 			a = a->next;  in merge_final()
65 			tail->next = b;  in merge_final()
68 			b = b->next;  in merge_final()
77 	tail->next = b;  in merge_final()
90 		b = b->next;  in merge_final()
94 	tail->next = head;  in merge_final()
191 	struct list_head *list = head->next, *pending = NULL;  in list_sort()
198 	head->prev->next = NULL;  in list_sort()
238 		list = list->next;  in list_sort()
239 		pending->next = NULL;  in list_sort()
247 		struct list_head *next = pending->prev;  in list_sort()  local
249 		if (!next)  in list_sort()
252 		pending = next;  in list_sort()