390     item **head, **tail;  in do_item_link_fixup()  local
396     tail = &tails[it->slabs_clsid];  in do_item_link_fixup()
398     if (it->next == 0 && *tail == 0) *tail = it;  in do_item_link_fixup()
414     item **head, **tail;  in do_item_link_q()  local
418     tail = &tails[it->slabs_clsid];  in do_item_link_q()
420     assert((*head && *tail) || (*head == 0 && *tail == 0));  in do_item_link_q()
425     if (*tail == 0) *tail = it;  in do_item_link_q()
454     item **head, **tail;  in do_item_unlink_q()  local
456     tail = &tails[it->slabs_clsid];  in do_item_unlink_q()
462     if (*tail == it) {  in do_item_unlink_q()
464         *tail = it->prev;  in do_item_unlink_q()
1752     item **head, **tail;  in do_item_linktail_q()  local
1757     tail = &tails[it->slabs_clsid];  in do_item_linktail_q()
1759     assert(it != *tail);  in do_item_linktail_q()
1760     assert((*head && *tail) || (*head == 0 && *tail == 0));  in do_item_linktail_q()
1761     it->prev = *tail;  in do_item_linktail_q()
1767     *tail = it;  in do_item_linktail_q()
1773     item **head, **tail;  in do_item_unlinktail_q()  local
1775     tail = &tails[it->slabs_clsid];  in do_item_unlinktail_q()
1781     if (*tail == it) {  in do_item_unlinktail_q()
1783         *tail = it->prev;  in do_item_unlinktail_q()
1796     item **head, **tail;  in do_item_crawl_q()  local
1800     tail = &tails[it->slabs_clsid];  in do_item_crawl_q()
1821         if (*tail == it) {  in do_item_crawl_q()
1823             *tail = it->prev;  in do_item_crawl_q()