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6cbd5570 CM |
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 | ||
e089f05c CM |
19 | #ifndef __TRANSACTION__ |
20 | #define __TRANSACTION__ | |
31f3c99b | 21 | #include "btrfs_inode.h" |
e089f05c | 22 | |
79154b1b CM |
23 | struct btrfs_transaction { |
24 | u64 transid; | |
25 | unsigned long num_writers; | |
15ee9bc7 | 26 | unsigned long num_joined; |
79154b1b CM |
27 | int in_commit; |
28 | int use_count; | |
29 | int commit_done; | |
8fd17795 | 30 | struct list_head list; |
5f39d397 | 31 | struct extent_map_tree dirty_pages; |
08607c1b | 32 | unsigned long start_time; |
79154b1b CM |
33 | wait_queue_head_t writer_wait; |
34 | wait_queue_head_t commit_wait; | |
35 | }; | |
36 | ||
e089f05c CM |
37 | struct btrfs_trans_handle { |
38 | u64 transid; | |
39 | unsigned long blocks_reserved; | |
40 | unsigned long blocks_used; | |
79154b1b | 41 | struct btrfs_transaction *transaction; |
31f3c99b | 42 | struct btrfs_block_group_cache *block_group; |
26b8003f CM |
43 | u64 alloc_exclude_start; |
44 | u64 alloc_exclude_nr; | |
e089f05c CM |
45 | }; |
46 | ||
e089f05c | 47 | |
31f3c99b CM |
48 | static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans, |
49 | struct inode *inode) | |
50 | { | |
51 | trans->block_group = BTRFS_I(inode)->block_group; | |
52 | } | |
53 | ||
54 | static inline void btrfs_update_inode_block_group(struct | |
55 | btrfs_trans_handle *trans, | |
56 | struct inode *inode) | |
57 | { | |
58 | BTRFS_I(inode)->block_group = trans->block_group; | |
59 | } | |
60 | ||
15ee9bc7 JB |
61 | static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans, |
62 | struct inode *inode) | |
63 | { | |
64 | BTRFS_I(inode)->last_trans = trans->transaction->transid; | |
65 | } | |
66 | ||
79154b1b CM |
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, | |
70 | int num_blocks); | |
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); | |
08607c1b | 75 | |
6da6abae CM |
76 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18) |
77 | void btrfs_transaction_cleaner(void *p); | |
78 | #else | |
08607c1b | 79 | void btrfs_transaction_cleaner(struct work_struct *work); |
6da6abae CM |
80 | #endif |
81 | ||
08607c1b CM |
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); | |
5ce14bbc CM |
86 | int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest, |
87 | struct list_head *dead_list); | |
6702ed49 | 88 | int btrfs_defrag_dirty_roots(struct btrfs_fs_info *info); |
e9d0b13b CM |
89 | int btrfs_defrag_root(struct btrfs_root *root, int cacheonly); |
90 | int btrfs_clean_old_snapshots(struct btrfs_root *root); | |
5f39d397 CM |
91 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, |
92 | struct btrfs_root *root); | |
e089f05c | 93 | #endif |