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Diffstat (limited to 'fs/btrfs/transaction.h')
| -rw-r--r-- | fs/btrfs/transaction.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h new file mode 100644 index 000000000000..eef2cb7d7e78 --- /dev/null +++ b/fs/btrfs/transaction.h | |||
| @@ -0,0 +1,104 @@ | |||
| 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 | struct btrfs_block_group_cache *block_group; | ||
| 45 | u64 alloc_exclude_start; | ||
| 46 | u64 alloc_exclude_nr; | ||
| 47 | }; | ||
| 48 | |||
| 49 | struct btrfs_pending_snapshot { | ||
| 50 | struct btrfs_root *root; | ||
| 51 | char *name; | ||
| 52 | struct list_head list; | ||
| 53 | }; | ||
| 54 | |||
| 55 | struct btrfs_dirty_root { | ||
| 56 | struct list_head list; | ||
| 57 | struct btrfs_root *root; | ||
| 58 | struct btrfs_root *latest_root; | ||
| 59 | }; | ||
| 60 | |||
| 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 | |||
| 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 | |||
| 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); | ||
| 84 | struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root, | ||
| 85 | int num_blocks); | ||
| 86 | struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *r, | ||
| 87 | int num_blocks); | ||
| 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); | ||
| 92 | |||
| 93 | int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest); | ||
| 94 | int btrfs_defrag_root(struct btrfs_root *root, int cacheonly); | ||
| 95 | int btrfs_clean_old_snapshots(struct btrfs_root *root); | ||
| 96 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, | ||
| 97 | struct btrfs_root *root); | ||
| 98 | int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans, | ||
| 99 | struct btrfs_root *root); | ||
| 100 | void btrfs_throttle(struct btrfs_root *root); | ||
| 101 | int btrfs_record_root_in_trans(struct btrfs_root *root); | ||
| 102 | int btrfs_write_and_wait_marked_extents(struct btrfs_root *root, | ||
| 103 | struct extent_io_tree *dirty_pages); | ||
| 104 | #endif | ||