159 			struct list_head *head;  member
209 			struct stable_node *head;  member
345 	return dup->head == STABLE_NODE_DUP_HEAD;  in is_stable_node_dup()
352 	dup->head = STABLE_NODE_DUP_HEAD;  in stable_node_chain_add_dup()
373 	dup->head = NULL;  in stable_node_dup_del()
662 	if (stable_node->head == &migrate_nodes)  in remove_node_from_stable_tree()
779 		stable_node = rmap_item->head;  in remove_rmap_item_from_tree()
1561 	if (page_node && page_node->head != &migrate_nodes) {  in stable_tree_search()
1641 				VM_BUG_ON(page_node->head != &migrate_nodes);  in stable_tree_search()
1726 			VM_BUG_ON(page_node->head != &migrate_nodes);  in stable_tree_search()
1744 			VM_BUG_ON(page_node->head != &migrate_nodes);  in stable_tree_search()
1756 	stable_node_dup->head = &migrate_nodes;  in stable_tree_search()
1757 	list_add(&stable_node_dup->list, stable_node_dup->head);  in stable_tree_search()
1789 	VM_BUG_ON(page_node->head != &migrate_nodes);  in stable_tree_search()
2016 	rmap_item->head = stable_node;  in stable_tree_append()
2048 		if (stable_node->head != &migrate_nodes &&  in cmp_and_merge_page()
2052 			stable_node->head = &migrate_nodes;  in cmp_and_merge_page()
2053 			list_add(&stable_node->list, stable_node->head);  in cmp_and_merge_page()
2055 		if (stable_node->head != &migrate_nodes &&  in cmp_and_merge_page()
2056 		    rmap_item->head == stable_node)  in cmp_and_merge_page()
2068 	if (kpage == page && rmap_item->head == stable_node) {  in cmp_and_merge_page()