347 					    struct backref_edge *edges[],  in walk_up_backref()  argument
356 		edges[idx++] = edge;  in walk_up_backref()
367 static struct backref_node *walk_down_backref(struct backref_edge *edges[],  in walk_down_backref()  argument
375 		edge = edges[idx - 1];  in walk_down_backref()
383 		edges[idx - 1] = edge;  in walk_down_backref()
2464 				     struct backref_edge *edges[])  argument
2473 		next = walk_up_backref(next, edges, &index);
2499 		next = walk_down_backref(edges, &index);
2512 		next = edges[index]->node[UPPER];
2529 	struct backref_edge *edges[BTRFS_MAX_LEVEL - 1];  local
2535 		next = walk_up_backref(next, edges, &index);
2549 		next = walk_down_backref(edges, &index);
2565 	struct backref_edge *edges[BTRFS_MAX_LEVEL - 1];  local
2584 			edges[index++] = edge;
2587 		next = walk_down_backref(edges, &index);
2644 	struct backref_edge *edges[BTRFS_MAX_LEVEL - 1];  local
2662 		root = select_reloc_root(trans, rc, upper, edges);
2839 	struct backref_edge *edges[BTRFS_MAX_LEVEL - 1];  local
2855 			edges[index++] = edge;
2858 		next = walk_down_backref(edges, &index);