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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" |
56bec294 | 22 | #include "delayed-ref.h" |
e089f05c | 23 | |
79154b1b CM |
24 | struct btrfs_transaction { |
25 | u64 transid; | |
b7ec40d7 CM |
26 | /* |
27 | * total writers in this transaction, it must be zero before the | |
28 | * transaction can end | |
29 | */ | |
79154b1b | 30 | unsigned long num_writers; |
b7ec40d7 | 31 | |
15ee9bc7 | 32 | unsigned long num_joined; |
79154b1b CM |
33 | int in_commit; |
34 | int use_count; | |
35 | int commit_done; | |
f9295749 | 36 | int blocked; |
8fd17795 | 37 | struct list_head list; |
d1310b2e | 38 | struct extent_io_tree dirty_pages; |
08607c1b | 39 | unsigned long start_time; |
79154b1b CM |
40 | wait_queue_head_t writer_wait; |
41 | wait_queue_head_t commit_wait; | |
3063d29f | 42 | struct list_head pending_snapshots; |
56bec294 | 43 | struct btrfs_delayed_ref_root delayed_refs; |
79154b1b CM |
44 | }; |
45 | ||
e089f05c CM |
46 | struct btrfs_trans_handle { |
47 | u64 transid; | |
48 | unsigned long blocks_reserved; | |
49 | unsigned long blocks_used; | |
79154b1b | 50 | struct btrfs_transaction *transaction; |
d2fb3437 | 51 | u64 block_group; |
26b8003f CM |
52 | u64 alloc_exclude_start; |
53 | u64 alloc_exclude_nr; | |
56bec294 | 54 | unsigned long delayed_ref_updates; |
e089f05c CM |
55 | }; |
56 | ||
3063d29f | 57 | struct btrfs_pending_snapshot { |
3de4586c | 58 | struct dentry *dentry; |
3063d29f CM |
59 | struct btrfs_root *root; |
60 | char *name; | |
3de4586c | 61 | struct btrfs_key root_key; |
3063d29f CM |
62 | struct list_head list; |
63 | }; | |
64 | ||
31f3c99b CM |
65 | static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans, |
66 | struct inode *inode) | |
67 | { | |
68 | trans->block_group = BTRFS_I(inode)->block_group; | |
69 | } | |
70 | ||
d397712b CM |
71 | static inline void btrfs_update_inode_block_group( |
72 | struct btrfs_trans_handle *trans, | |
73 | struct inode *inode) | |
31f3c99b CM |
74 | { |
75 | BTRFS_I(inode)->block_group = trans->block_group; | |
76 | } | |
77 | ||
15ee9bc7 JB |
78 | static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans, |
79 | struct inode *inode) | |
80 | { | |
81 | BTRFS_I(inode)->last_trans = trans->transaction->transid; | |
257c62e1 | 82 | BTRFS_I(inode)->last_sub_trans = BTRFS_I(inode)->root->log_transid; |
15ee9bc7 JB |
83 | } |
84 | ||
79154b1b CM |
85 | int btrfs_end_transaction(struct btrfs_trans_handle *trans, |
86 | struct btrfs_root *root); | |
87 | struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root, | |
88 | int num_blocks); | |
f9295749 CM |
89 | struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root, |
90 | int num_blocks); | |
9ca9ee09 SW |
91 | struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *r, |
92 | int num_blocks); | |
79154b1b CM |
93 | int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans, |
94 | struct btrfs_root *root); | |
95 | int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans, | |
96 | struct btrfs_root *root); | |
08607c1b | 97 | |
5d4f98a2 YZ |
98 | int btrfs_add_dead_root(struct btrfs_root *root); |
99 | int btrfs_drop_dead_root(struct btrfs_root *root); | |
e9d0b13b CM |
100 | int btrfs_defrag_root(struct btrfs_root *root, int cacheonly); |
101 | int btrfs_clean_old_snapshots(struct btrfs_root *root); | |
5f39d397 CM |
102 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, |
103 | struct btrfs_root *root); | |
89ce8a63 CM |
104 | int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans, |
105 | struct btrfs_root *root); | |
ab78c84d | 106 | void btrfs_throttle(struct btrfs_root *root); |
5d4f98a2 YZ |
107 | int btrfs_record_root_in_trans(struct btrfs_trans_handle *trans, |
108 | struct btrfs_root *root); | |
d0c803c4 | 109 | int btrfs_write_and_wait_marked_extents(struct btrfs_root *root, |
8cef4e16 | 110 | struct extent_io_tree *dirty_pages, int mark); |
690587d1 | 111 | int btrfs_write_marked_extents(struct btrfs_root *root, |
8cef4e16 | 112 | struct extent_io_tree *dirty_pages, int mark); |
690587d1 | 113 | int btrfs_wait_marked_extents(struct btrfs_root *root, |
8cef4e16 | 114 | struct extent_io_tree *dirty_pages, int mark); |
f36f3042 | 115 | int btrfs_transaction_in_commit(struct btrfs_fs_info *info); |
e089f05c | 116 | #endif |