|  | /* | 
|  | * Copyright (C) 2009 Oracle.  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_CACHE | 
|  | #define __BTRFS_FREE_SPACE_CACHE | 
|  |  | 
|  | int btrfs_add_free_space(struct btrfs_block_group_cache *block_group, | 
|  | u64 bytenr, u64 size); | 
|  | int btrfs_remove_free_space(struct btrfs_block_group_cache *block_group, | 
|  | u64 bytenr, u64 size); | 
|  | void btrfs_remove_free_space_cache(struct btrfs_block_group_cache | 
|  | *block_group); | 
|  | u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group, | 
|  | u64 offset, u64 bytes, u64 empty_size); | 
|  | void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group, | 
|  | u64 bytes); | 
|  | u64 btrfs_block_group_free_space(struct btrfs_block_group_cache *block_group); | 
|  | int btrfs_find_space_cluster(struct btrfs_trans_handle *trans, | 
|  | struct btrfs_root *root, | 
|  | struct btrfs_block_group_cache *block_group, | 
|  | struct btrfs_free_cluster *cluster, | 
|  | u64 offset, u64 bytes, u64 empty_size); | 
|  | void btrfs_init_free_cluster(struct btrfs_free_cluster *cluster); | 
|  | u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group, | 
|  | struct btrfs_free_cluster *cluster, u64 bytes, | 
|  | u64 min_start); | 
|  | int btrfs_return_cluster_to_free_space( | 
|  | struct btrfs_block_group_cache *block_group, | 
|  | struct btrfs_free_cluster *cluster); | 
|  | #endif |