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"
23 struct btrfs_transaction
{
25 unsigned long num_writers
;
26 unsigned long num_joined
;
31 struct list_head list
;
32 struct extent_io_tree dirty_pages
;
33 unsigned long start_time
;
34 wait_queue_head_t writer_wait
;
35 wait_queue_head_t commit_wait
;
36 struct list_head pending_snapshots
;
39 struct btrfs_trans_handle
{
41 unsigned long blocks_reserved
;
42 unsigned long blocks_used
;
43 struct btrfs_transaction
*transaction
;
44 struct btrfs_block_group_cache
*block_group
;
45 u64 alloc_exclude_start
;
49 struct btrfs_pending_snapshot
{
50 struct btrfs_root
*root
;
52 struct list_head list
;
55 struct btrfs_dirty_root
{
56 struct list_head list
;
57 struct btrfs_root
*root
;
58 struct btrfs_root
*latest_root
;
61 static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle
*trans
,
64 trans
->block_group
= BTRFS_I(inode
)->block_group
;
67 static inline void btrfs_update_inode_block_group(struct
68 btrfs_trans_handle
*trans
,
71 BTRFS_I(inode
)->block_group
= trans
->block_group
;
74 static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle
*trans
,
77 BTRFS_I(inode
)->last_trans
= trans
->transaction
->transid
;
80 int btrfs_end_transaction(struct btrfs_trans_handle
*trans
,
81 struct btrfs_root
*root
);
82 struct btrfs_trans_handle
*btrfs_start_transaction(struct btrfs_root
*root
,
84 struct btrfs_trans_handle
*btrfs_join_transaction(struct btrfs_root
*root
,
86 struct btrfs_trans_handle
*btrfs_start_ioctl_transaction(struct btrfs_root
*r
,
88 int btrfs_write_and_wait_transaction(struct btrfs_trans_handle
*trans
,
89 struct btrfs_root
*root
);
90 int btrfs_commit_tree_roots(struct btrfs_trans_handle
*trans
,
91 struct btrfs_root
*root
);
93 int btrfs_add_dead_root(struct btrfs_root
*root
, struct btrfs_root
*latest
);
94 int btrfs_defrag_root(struct btrfs_root
*root
, int cacheonly
);
95 int btrfs_clean_old_snapshots(struct btrfs_root
*root
);
96 int btrfs_commit_transaction(struct btrfs_trans_handle
*trans
,
97 struct btrfs_root
*root
);
98 int btrfs_end_transaction_throttle(struct btrfs_trans_handle
*trans
,
99 struct btrfs_root
*root
);
100 void btrfs_throttle(struct btrfs_root
*root
);
101 int btrfs_record_root_in_trans(struct btrfs_root
*root
);
102 int btrfs_write_and_wait_marked_extents(struct btrfs_root
*root
,
103 struct extent_io_tree
*dirty_pages
);