2 * Copyright (C) 2008 Oracle. All rights reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
21 struct btrfs_extent_info {
22 /* bytenr and num_bytes find the extent in the extent allocation tree */
26 /* objectid and offset find the back reference for the file */
31 struct btrfs_leaf_ref {
32 struct rb_node rb_node;
33 struct btrfs_leaf_ref_tree *tree;
43 struct list_head list;
44 struct btrfs_extent_info extents[];
47 static inline size_t btrfs_leaf_ref_size(int nr_extents)
49 return sizeof(struct btrfs_leaf_ref) +
50 sizeof(struct btrfs_extent_info) * nr_extents;