Lines Matching refs:lower
352 /* List of lower level edges, which link this node to its children */
353 struct list_head lower;
390 * Represent an edge connecting upper and lower backref nodes.
394 * list[LOWER] is linked to btrfs_backref_node::upper of lower level
395 * node, and list[UPPER] is linked to btrfs_backref_node::lower of
456 struct btrfs_backref_node *lower,
460 ASSERT(upper && lower && upper->level == lower->level + 1);
461 edge->node[LOWER] = lower;
464 list_add_tail(&edge->list[LOWER], &lower->upper);
466 list_add_tail(&edge->list[UPPER], &upper->lower);
474 ASSERT(list_empty(&node->lower));
524 list_del_init(&node->lower);