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
;
26 unsigned long num_joined
;
30 struct list_head list
;
31 struct extent_map_tree dirty_pages
;
32 unsigned long start_time
;
33 wait_queue_head_t writer_wait
;
34 wait_queue_head_t commit_wait
;
37 struct btrfs_trans_handle
{
39 unsigned long blocks_reserved
;
40 unsigned long blocks_used
;
41 struct btrfs_transaction
*transaction
;
42 struct btrfs_block_group_cache
*block_group
;
43 u64 alloc_exclude_start
;
48 static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle
*trans
,
51 trans
->block_group
= BTRFS_I(inode
)->block_group
;
54 static inline void btrfs_update_inode_block_group(struct
55 btrfs_trans_handle
*trans
,
58 BTRFS_I(inode
)->block_group
= trans
->block_group
;
61 static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle
*trans
,
64 BTRFS_I(inode
)->last_trans
= trans
->transaction
->transid
;
67 int btrfs_end_transaction(struct btrfs_trans_handle
*trans
,
68 struct btrfs_root
*root
);
69 struct btrfs_trans_handle
*btrfs_start_transaction(struct btrfs_root
*root
,
71 int btrfs_write_and_wait_transaction(struct btrfs_trans_handle
*trans
,
72 struct btrfs_root
*root
);
73 int btrfs_commit_tree_roots(struct btrfs_trans_handle
*trans
,
74 struct btrfs_root
*root
);
76 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
77 void btrfs_transaction_cleaner(void *p
);
79 void btrfs_transaction_cleaner(struct work_struct
*work
);
82 void btrfs_transaction_flush_work(struct btrfs_root
*root
);
83 void btrfs_transaction_queue_work(struct btrfs_root
*root
, int delay
);
84 void btrfs_init_transaction_sys(void);
85 void btrfs_exit_transaction_sys(void);
86 int btrfs_add_dead_root(struct btrfs_root
*root
, struct btrfs_root
*latest
,
87 struct list_head
*dead_list
);
88 int btrfs_defrag_dirty_roots(struct btrfs_fs_info
*info
);
89 int btrfs_defrag_root(struct btrfs_root
*root
, int cacheonly
);
90 int btrfs_clean_old_snapshots(struct btrfs_root
*root
);
91 int btrfs_commit_transaction(struct btrfs_trans_handle
*trans
,
92 struct btrfs_root
*root
);