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 __BTRFS_TRANSACTION__
20 #define __BTRFS_TRANSACTION__
21 #include "btrfs_inode.h"
22 #include "ordered-data.h"
24 struct btrfs_transaction {
26 unsigned long num_writers;
27 unsigned long num_joined;
31 struct list_head list;
32 struct extent_io_tree dirty_pages;
33 unsigned long start_time;
34 struct btrfs_ordered_inode_tree ordered_inode_tree;
35 wait_queue_head_t writer_wait;
36 wait_queue_head_t commit_wait;
37 struct list_head pending_snapshots;
40 struct btrfs_trans_handle {
42 unsigned long blocks_reserved;
43 unsigned long blocks_used;
44 struct btrfs_transaction *transaction;
45 struct btrfs_block_group_cache *block_group;
46 u64 alloc_exclude_start;
50 struct btrfs_pending_snapshot {
51 struct btrfs_root *root;
53 struct list_head list;
57 static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans,
60 trans->block_group = BTRFS_I(inode)->block_group;
63 static inline void btrfs_update_inode_block_group(struct
64 btrfs_trans_handle *trans,
67 BTRFS_I(inode)->block_group = trans->block_group;
70 static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans,
73 BTRFS_I(inode)->last_trans = trans->transaction->transid;
76 int btrfs_end_transaction(struct btrfs_trans_handle *trans,
77 struct btrfs_root *root);
78 struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,
80 int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans,
81 struct btrfs_root *root);
82 int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans,
83 struct btrfs_root *root);
85 int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest,
86 struct list_head *dead_list);
87 int btrfs_defrag_dirty_roots(struct btrfs_fs_info *info);
88 int btrfs_defrag_root(struct btrfs_root *root, int cacheonly);
89 int btrfs_clean_old_snapshots(struct btrfs_root *root);
90 int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
91 struct btrfs_root *root);
92 int btrfs_write_ordered_inodes(struct btrfs_trans_handle *trans,
93 struct btrfs_root *root);
94 int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans,
95 struct btrfs_root *root);