2 * Copyright (C) 2007 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.
19 #include <linux/module.h>
22 #include "transaction.h"
24 int btrfs_insert_inode(struct btrfs_trans_handle *trans, struct btrfs_root
25 *root, u64 objectid, struct btrfs_inode_item
28 struct btrfs_path *path;
31 key.objectid = objectid;
33 btrfs_set_key_type(&key, BTRFS_INODE_ITEM_KEY);
36 path = btrfs_alloc_path();
38 btrfs_init_path(path);
39 ret = btrfs_insert_item(trans, root, &key, inode_item,
41 btrfs_release_path(root, path);
42 btrfs_free_path(path);
43 if (ret == 0 && objectid > root->highest_inode)
44 root->highest_inode = objectid;
48 int btrfs_lookup_inode(struct btrfs_trans_handle *trans, struct btrfs_root
49 *root, struct btrfs_path *path,
50 struct btrfs_key *location, int mod)
52 int ins_len = mod < 0 ? -1 : 0;
56 struct btrfs_leaf *leaf;
57 struct btrfs_key found_key;
59 ret = btrfs_search_slot(trans, root, location, path, ins_len, cow);
60 if (ret > 0 && btrfs_key_type(location) == BTRFS_ROOT_ITEM_KEY &&
61 location->offset == (u64)-1 && path->slots[0] != 0) {
62 slot = path->slots[0] - 1;
63 leaf = btrfs_buffer_leaf(path->nodes[0]);
64 btrfs_disk_key_to_cpu(&found_key, &leaf->items[slot].key);
65 if (found_key.objectid == location->objectid &&
66 btrfs_key_type(&found_key) == btrfs_key_type(location)) {