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__
21 #include "btrfs_inode.h"
23 struct btrfs_transaction {
25 unsigned long num_writers;
29 struct list_head list;
30 struct radix_tree_root dirty_pages;
31 unsigned long start_time;
32 wait_queue_head_t writer_wait;
33 wait_queue_head_t commit_wait;
36 struct btrfs_trans_handle {
38 unsigned long blocks_reserved;
39 unsigned long blocks_used;
40 struct btrfs_transaction *transaction;
41 struct btrfs_block_group_cache *block_group;
42 u64 alloc_exclude_start;
47 static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans,
50 trans->block_group = BTRFS_I(inode)->block_group;
53 static inline void btrfs_update_inode_block_group(struct
54 btrfs_trans_handle *trans,
57 BTRFS_I(inode)->block_group = trans->block_group;
60 int btrfs_end_transaction(struct btrfs_trans_handle *trans,
61 struct btrfs_root *root);
62 struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,
64 int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans,
65 struct btrfs_root *root);
66 int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans,
67 struct btrfs_root *root);
69 void btrfs_transaction_cleaner(struct work_struct *work);
70 void btrfs_transaction_flush_work(struct btrfs_root *root);
71 void btrfs_transaction_queue_work(struct btrfs_root *root, int delay);
72 void btrfs_init_transaction_sys(void);
73 void btrfs_exit_transaction_sys(void);
74 int btrfs_add_dead_root(struct btrfs_root *root, struct list_head *dead_list);
75 int btrfs_defrag_dirty_roots(struct btrfs_fs_info *info);
76 int btrfs_defrag_root(struct btrfs_root *root, int cacheonly);
77 int btrfs_clean_old_snapshots(struct btrfs_root *root);