Chris Mason | 6cbd557 | 2007-06-12 09:07:21 -0400 | [diff] [blame] | 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 | |
Chris Mason | dc17ff8 | 2008-01-08 15:46:30 -0500 | [diff] [blame] | 19 | #ifndef __BTRFS_TRANSACTION__ |
| 20 | #define __BTRFS_TRANSACTION__ |
Chris Mason | 31f3c99 | 2007-04-30 15:25:45 -0400 | [diff] [blame] | 21 | #include "btrfs_inode.h" |
Chris Mason | e089f05 | 2007-03-16 16:20:31 -0400 | [diff] [blame] | 22 | |
Chris Mason | 79154b1 | 2007-03-22 15:59:16 -0400 | [diff] [blame] | 23 | struct btrfs_transaction { |
| 24 | u64 transid; |
| 25 | unsigned long num_writers; |
Josef Bacik | 15ee9bc | 2007-08-10 16:22:09 -0400 | [diff] [blame] | 26 | unsigned long num_joined; |
Chris Mason | 79154b1 | 2007-03-22 15:59:16 -0400 | [diff] [blame] | 27 | int in_commit; |
| 28 | int use_count; |
| 29 | int commit_done; |
Chris Mason | f929574 | 2008-07-17 12:54:14 -0400 | [diff] [blame] | 30 | int blocked; |
Chris Mason | 8fd1779 | 2007-04-19 21:01:03 -0400 | [diff] [blame] | 31 | struct list_head list; |
Chris Mason | d1310b2 | 2008-01-24 16:13:08 -0500 | [diff] [blame] | 32 | struct extent_io_tree dirty_pages; |
Chris Mason | 08607c1 | 2007-06-08 15:33:54 -0400 | [diff] [blame] | 33 | unsigned long start_time; |
Chris Mason | 79154b1 | 2007-03-22 15:59:16 -0400 | [diff] [blame] | 34 | wait_queue_head_t writer_wait; |
| 35 | wait_queue_head_t commit_wait; |
Chris Mason | 3063d29 | 2008-01-08 15:46:30 -0500 | [diff] [blame] | 36 | struct list_head pending_snapshots; |
Chris Mason | 79154b1 | 2007-03-22 15:59:16 -0400 | [diff] [blame] | 37 | }; |
| 38 | |
Chris Mason | e089f05 | 2007-03-16 16:20:31 -0400 | [diff] [blame] | 39 | struct btrfs_trans_handle { |
| 40 | u64 transid; |
| 41 | unsigned long blocks_reserved; |
| 42 | unsigned long blocks_used; |
Chris Mason | 79154b1 | 2007-03-22 15:59:16 -0400 | [diff] [blame] | 43 | struct btrfs_transaction *transaction; |
Chris Mason | 31f3c99 | 2007-04-30 15:25:45 -0400 | [diff] [blame] | 44 | struct btrfs_block_group_cache *block_group; |
Chris Mason | 26b8003 | 2007-08-08 20:17:12 -0400 | [diff] [blame] | 45 | u64 alloc_exclude_start; |
| 46 | u64 alloc_exclude_nr; |
Chris Mason | e089f05 | 2007-03-16 16:20:31 -0400 | [diff] [blame] | 47 | }; |
| 48 | |
Chris Mason | 3063d29 | 2008-01-08 15:46:30 -0500 | [diff] [blame] | 49 | struct btrfs_pending_snapshot { |
| 50 | struct btrfs_root *root; |
| 51 | char *name; |
| 52 | struct list_head list; |
| 53 | }; |
| 54 | |
Yan Zheng | f321e49 | 2008-07-30 09:26:11 -0400 | [diff] [blame] | 55 | struct btrfs_dirty_root { |
| 56 | struct list_head list; |
| 57 | struct btrfs_root *root; |
| 58 | struct btrfs_root *latest_root; |
| 59 | }; |
Chris Mason | e089f05 | 2007-03-16 16:20:31 -0400 | [diff] [blame] | 60 | |
Chris Mason | 31f3c99 | 2007-04-30 15:25:45 -0400 | [diff] [blame] | 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 | |
Josef Bacik | 15ee9bc | 2007-08-10 16:22:09 -0400 | [diff] [blame] | 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 | |
Chris Mason | 79154b1 | 2007-03-22 15:59:16 -0400 | [diff] [blame] | 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); |
Chris Mason | f929574 | 2008-07-17 12:54:14 -0400 | [diff] [blame] | 84 | struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root, |
| 85 | int num_blocks); |
Sage Weil | 9ca9ee0 | 2008-08-04 10:41:27 -0400 | [diff] [blame] | 86 | struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *r, |
| 87 | int num_blocks); |
Chris Mason | 79154b1 | 2007-03-22 15:59:16 -0400 | [diff] [blame] | 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); |
Chris Mason | 08607c1 | 2007-06-08 15:33:54 -0400 | [diff] [blame] | 92 | |
Yan Zheng | b48652c | 2008-08-04 23:23:47 -0400 | [diff] [blame] | 93 | int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest); |
Chris Mason | e9d0b13 | 2007-08-10 14:06:19 -0400 | [diff] [blame] | 94 | int btrfs_defrag_root(struct btrfs_root *root, int cacheonly); |
| 95 | int btrfs_clean_old_snapshots(struct btrfs_root *root); |
Chris Mason | 5f39d39 | 2007-10-15 16:14:19 -0400 | [diff] [blame] | 96 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, |
| 97 | struct btrfs_root *root); |
Chris Mason | 89ce8a6 | 2008-06-25 16:01:31 -0400 | [diff] [blame] | 98 | int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans, |
| 99 | struct btrfs_root *root); |
Chris Mason | ab78c84 | 2008-07-29 16:15:18 -0400 | [diff] [blame] | 100 | void btrfs_throttle(struct btrfs_root *root); |
Chris Mason | e089f05 | 2007-03-16 16:20:31 -0400 | [diff] [blame] | 101 | #endif |