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Diffstat (limited to 'fs/btrfs/free-space-cache.h')
-rw-r--r-- | fs/btrfs/free-space-cache.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h new file mode 100644 index 000000000000..ab0bdc0a63ce --- /dev/null +++ b/fs/btrfs/free-space-cache.h | |||
@@ -0,0 +1,44 @@ | |||
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 | ||