| /* |
| * Copyright (C) 2015 Facebook. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public |
| * License v2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public |
| * License along with this program; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 021110-1307, USA. |
| */ |
| |
| #ifndef __BTRFS_FREE_SPACE_TREE_H__ |
| #define __BTRFS_FREE_SPACE_TREE_H__ |
| |
| #define BTRFS_FREE_SPACE_BITMAP_SIZE 256 |
| #define BTRFS_FREE_SPACE_BITMAP_BITS (BTRFS_FREE_SPACE_BITMAP_SIZE * BITS_PER_BYTE) |
| |
| int btrfs_clear_free_space_tree(struct btrfs_fs_info *fs_info); |
| int load_free_space_tree(struct btrfs_fs_info *fs_info, |
| struct btrfs_block_group_cache *block_group); |
| int populate_free_space_tree(struct btrfs_trans_handle *trans, |
| struct btrfs_block_group_cache *block_group); |
| int remove_block_group_free_space(struct btrfs_trans_handle *trans, |
| struct btrfs_block_group_cache *block_group); |
| int add_to_free_space_tree(struct btrfs_trans_handle *trans, u64 start, |
| u64 size); |
| int remove_from_free_space_tree(struct btrfs_trans_handle *trans, u64 start, |
| u64 size); |
| int btrfs_create_free_space_tree(struct btrfs_fs_info *info); |
| |
| #endif |