transaction.h

   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_H__
  20 #define __BTRFS_TRANSACTION_H__
  21
  22 #include "kerncompat.h"
  23 #include "ctree.h"
  24
  25 struct btrfs_trans_handle {
  26         struct btrfs_fs_info *fs_info;
  27         u64 transid;
  28         u64 alloc_exclude_start;
  29         u64 alloc_exclude_nr;
  30         bool reinit_extent_tree;
  31         unsigned long blocks_reserved;
  32         unsigned long blocks_used;
  33         struct btrfs_block_group_cache *block_group;
  34 };
  35
  36 struct btrfs_trans_handle* btrfs_start_transaction(struct btrfs_root *root,
  37                 int num_blocks);
  38 int __commit_transaction(struct btrfs_trans_handle *trans,
  39                                 struct btrfs_root *root);
  40 int commit_tree_roots(struct btrfs_trans_handle *trans,
  41                              struct btrfs_fs_info *fs_info);
  42 int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
  43                              struct btrfs_root *root);
  44 void btrfs_abort_transaction(struct btrfs_trans_handle *trans, int error);
  45
  46 #endif