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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 | ||
f321e491 YZ |
55 | struct btrfs_dirty_root { |
56 | struct list_head list; | |
57 | struct btrfs_root *root; | |
58 | struct btrfs_root *latest_root; | |
59 | }; | |
e089f05c | 60 | |
31f3c99b CM |
61 | static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans, |
62 | struct inode *inode) | |
63 | { | |
64 | trans->block_group = BTRFS_I(inode)->block_group; | |
65 | } | |
66 | ||
67 | static inline void btrfs_update_inode_block_group(struct | |
68 | btrfs_trans_handle *trans, | |
69 | struct inode *inode) | |
70 | { | |
71 | BTRFS_I(inode)->block_group = trans->block_group; | |
72 | } | |
73 | ||
15ee9bc7 JB |
74 | static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans, |
75 | struct inode *inode) | |
76 | { | |
77 | BTRFS_I(inode)->last_trans = trans->transaction->transid; | |
78 | } | |
79 | ||
79154b1b CM |
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, | |
83 | int num_blocks); | |
f9295749 CM |
84 | struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root, |
85 | int num_blocks); | |
9ca9ee09 SW |
86 | struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *r, |
87 | int num_blocks); | |
79154b1b CM |
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); | |
08607c1b | 92 | |
b48652c1 | 93 | int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest); |
e9d0b13b CM |
94 | int btrfs_defrag_root(struct btrfs_root *root, int cacheonly); |
95 | int btrfs_clean_old_snapshots(struct btrfs_root *root); | |
5f39d397 CM |
96 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, |
97 | struct btrfs_root *root); | |
89ce8a63 CM |
98 | int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans, |
99 | struct btrfs_root *root); | |
ab78c84d | 100 | void btrfs_throttle(struct btrfs_root *root); |
e02119d5 | 101 | int btrfs_record_root_in_trans(struct btrfs_root *root); |
d0c803c4 CM |
102 | int btrfs_write_and_wait_marked_extents(struct btrfs_root *root, |
103 | struct extent_io_tree *dirty_pages); | |
e089f05c | 104 | #endif |