walk_up_tree     5318 fs/btrfs/extent-tree.c 		ret = walk_up_tree(trans, root, path, wc, BTRFS_MAX_LEVEL);
walk_up_tree     5484 fs/btrfs/extent-tree.c 		wret = walk_up_tree(trans, root, path, wc, parent_level);
walk_up_tree     1009 fs/btrfs/ref-verify.c 		ret = walk_up_tree(path, &level);