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Diffstat (limited to 'fs/btrfs/transaction.h')
-rw-r--r-- | fs/btrfs/transaction.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h new file mode 100644 index 000000000000..ea292117f882 --- /dev/null +++ b/fs/btrfs/transaction.h | |||
@@ -0,0 +1,106 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2007 Oracle. All rights reserved. | ||
3 | * | ||
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. | ||
7 | * | ||
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. | ||
12 | * | ||
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. | ||
17 | */ | ||
18 | |||
19 | #ifndef __BTRFS_TRANSACTION__ | ||
20 | #define __BTRFS_TRANSACTION__ | ||
21 | #include "btrfs_inode.h" | ||
22 | |||
23 | struct btrfs_transaction { | ||
24 | u64 transid; | ||
25 | unsigned long num_writers; | ||
26 | unsigned long num_joined; | ||
27 | int in_commit; | ||
28 | int use_count; | ||
29 | int commit_done; | ||
30 | int blocked; | ||
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; | ||
37 | }; | ||
38 | |||
39 | struct btrfs_trans_handle { | ||
40 | u64 transid; | ||
41 | unsigned long blocks_reserved; | ||
42 | unsigned long blocks_used; | ||
43 | struct btrfs_transaction *transaction; | ||
44 | u64 block_group; | ||
45 | u64 alloc_exclude_start; | ||
46 | u64 alloc_exclude_nr; | ||
47 | }; | ||
48 | |||
49 | struct btrfs_pending_snapshot { | ||
50 | struct dentry *dentry; | ||
51 | struct btrfs_root *root; | ||
52 | char *name; | ||
53 | struct btrfs_key root_key; | ||
54 | struct list_head list; | ||
55 | }; | ||
56 | |||
57 | struct btrfs_dirty_root { | ||
58 | struct list_head list; | ||
59 | struct btrfs_root *root; | ||
60 | struct btrfs_root *latest_root; | ||
61 | }; | ||
62 | |||
63 | static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans, | ||
64 | struct inode *inode) | ||
65 | { | ||
66 | trans->block_group = BTRFS_I(inode)->block_group; | ||
67 | } | ||
68 | |||
69 | static inline void btrfs_update_inode_block_group( | ||
70 | struct btrfs_trans_handle *trans, | ||
71 | struct inode *inode) | ||
72 | { | ||
73 | BTRFS_I(inode)->block_group = trans->block_group; | ||
74 | } | ||
75 | |||
76 | static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans, | ||
77 | struct inode *inode) | ||
78 | { | ||
79 | BTRFS_I(inode)->last_trans = trans->transaction->transid; | ||
80 | } | ||
81 | |||
82 | int btrfs_end_transaction(struct btrfs_trans_handle *trans, | ||
83 | struct btrfs_root *root); | ||
84 | struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root, | ||
85 | int num_blocks); | ||
86 | struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root, | ||
87 | int num_blocks); | ||
88 | struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *r, | ||
89 | int num_blocks); | ||
90 | int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans, | ||
91 | struct btrfs_root *root); | ||
92 | int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans, | ||
93 | struct btrfs_root *root); | ||
94 | |||
95 | int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest); | ||
96 | int btrfs_defrag_root(struct btrfs_root *root, int cacheonly); | ||
97 | int btrfs_clean_old_snapshots(struct btrfs_root *root); | ||
98 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, | ||
99 | struct btrfs_root *root); | ||
100 | int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans, | ||
101 | struct btrfs_root *root); | ||
102 | void btrfs_throttle(struct btrfs_root *root); | ||
103 | int btrfs_record_root_in_trans(struct btrfs_root *root); | ||
104 | int btrfs_write_and_wait_marked_extents(struct btrfs_root *root, | ||
105 | struct extent_io_tree *dirty_pages); | ||
106 | #endif | ||