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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 | ||
dc17ff8f CM |
19 | #ifndef __BTRFS_TRANSACTION__ |
20 | #define __BTRFS_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; | |
f9295749 | 30 | int blocked; |
8fd17795 | 31 | struct list_head list; |
d1310b2e | 32 | struct extent_io_tree dirty_pages; |
08607c1b | 33 | unsigned long start_time; |
79154b1b CM |
34 | wait_queue_head_t writer_wait; |
35 | wait_queue_head_t commit_wait; | |
3063d29f | 36 | struct list_head pending_snapshots; |
79154b1b CM |
37 | }; |
38 | ||
e089f05c CM |
39 | struct btrfs_trans_handle { |
40 | u64 transid; | |
41 | unsigned long blocks_reserved; | |
42 | unsigned long blocks_used; | |
79154b1b | 43 | struct btrfs_transaction *transaction; |
31f3c99b | 44 | struct btrfs_block_group_cache *block_group; |
26b8003f CM |
45 | u64 alloc_exclude_start; |
46 | u64 alloc_exclude_nr; | |
e089f05c CM |
47 | }; |
48 | ||
3063d29f CM |
49 | struct btrfs_pending_snapshot { |
50 | struct btrfs_root *root; | |
51 | char *name; | |
52 | struct list_head list; | |
53 | }; | |
54 | ||
e089f05c | 55 | |
31f3c99b CM |
56 | static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans, |
57 | struct inode *inode) | |
58 | { | |
59 | trans->block_group = BTRFS_I(inode)->block_group; | |
60 | } | |
61 | ||
62 | static inline void btrfs_update_inode_block_group(struct | |
63 | btrfs_trans_handle *trans, | |
64 | struct inode *inode) | |
65 | { | |
66 | BTRFS_I(inode)->block_group = trans->block_group; | |
67 | } | |
68 | ||
15ee9bc7 JB |
69 | static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans, |
70 | struct inode *inode) | |
71 | { | |
72 | BTRFS_I(inode)->last_trans = trans->transaction->transid; | |
73 | } | |
74 | ||
79154b1b CM |
75 | int btrfs_end_transaction(struct btrfs_trans_handle *trans, |
76 | struct btrfs_root *root); | |
77 | struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root, | |
78 | int num_blocks); | |
f9295749 CM |
79 | struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root, |
80 | int num_blocks); | |
79154b1b CM |
81 | int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans, |
82 | struct btrfs_root *root); | |
83 | int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans, | |
84 | struct btrfs_root *root); | |
08607c1b | 85 | |
5ce14bbc CM |
86 | int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest, |
87 | struct list_head *dead_list); | |
e9d0b13b CM |
88 | int btrfs_defrag_root(struct btrfs_root *root, int cacheonly); |
89 | int btrfs_clean_old_snapshots(struct btrfs_root *root); | |
5f39d397 CM |
90 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, |
91 | struct btrfs_root *root); | |
89ce8a63 CM |
92 | int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans, |
93 | struct btrfs_root *root); | |
ab78c84d | 94 | void btrfs_throttle(struct btrfs_root *root); |
e089f05c | 95 | #endif |