1 /* 2 * Copyright (C) 2009 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_FREE_SPACE_CACHE 20 #define __BTRFS_FREE_SPACE_CACHE 21 22 int btrfs_add_free_space(struct btrfs_block_group_cache *block_group, 23 u64 bytenr, u64 size); 24 int btrfs_remove_free_space(struct btrfs_block_group_cache *block_group, 25 u64 bytenr, u64 size); 26 void btrfs_remove_free_space_cache(struct btrfs_block_group_cache 27 *block_group); 28 u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group, 29 u64 offset, u64 bytes, u64 empty_size); 30 void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group, 31 u64 bytes); 32 u64 btrfs_block_group_free_space(struct btrfs_block_group_cache *block_group); 33 int btrfs_find_space_cluster(struct btrfs_trans_handle *trans, 34 struct btrfs_block_group_cache *block_group, 35 struct btrfs_free_cluster *cluster, 36 u64 offset, u64 bytes, u64 empty_size); 37 void btrfs_init_free_cluster(struct btrfs_free_cluster *cluster); 38 u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group, 39 struct btrfs_free_cluster *cluster, u64 bytes, 40 u64 min_start); 41 int btrfs_return_cluster_to_free_space( 42 struct btrfs_block_group_cache *block_group, 43 struct btrfs_free_cluster *cluster); 44 #endif 45