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 #ifndef __TRANSACTION__
20 #define __TRANSACTION__
22 struct btrfs_trans_handle {
24 unsigned long blocks_reserved;
25 unsigned long blocks_used;
28 static inline struct btrfs_trans_handle *
29 btrfs_start_transaction(struct btrfs_root *root, int num_blocks)
31 struct btrfs_fs_info *fs_info = root->fs_info;
32 struct btrfs_trans_handle *h = malloc(sizeof(*h));
33 fs_info->running_transaction = h;
34 fs_info->generation++;
35 h->transid = fs_info->generation;
36 h->blocks_reserved = num_blocks;
41 static inline void btrfs_free_transaction(struct btrfs_root *root,
42 struct btrfs_trans_handle *handle)
44 memset(handle, 0, sizeof(*handle));