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9888c340 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
a5ed9182 OS |
2 | /* |
3 | * Copyright (C) 2015 Facebook. All rights reserved. | |
a5ed9182 OS |
4 | */ |
5 | ||
9888c340 DS |
6 | #ifndef BTRFS_FREE_SPACE_TREE_H |
7 | #define BTRFS_FREE_SPACE_TREE_H | |
a5ed9182 | 8 | |
aac0023c JB |
9 | struct btrfs_caching_control; |
10 | ||
a5ed9182 OS |
11 | /* |
12 | * The default size for new free space bitmap items. The last bitmap in a block | |
13 | * group may be truncated, and none of the free space tree code assumes that | |
14 | * existing bitmaps are this size. | |
15 | */ | |
16 | #define BTRFS_FREE_SPACE_BITMAP_SIZE 256 | |
17 | #define BTRFS_FREE_SPACE_BITMAP_BITS (BTRFS_FREE_SPACE_BITMAP_SIZE * BITS_PER_BYTE) | |
18 | ||
32da5386 | 19 | void set_free_space_tree_thresholds(struct btrfs_block_group *block_group); |
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20 | int btrfs_create_free_space_tree(struct btrfs_fs_info *fs_info); |
21 | int btrfs_clear_free_space_tree(struct btrfs_fs_info *fs_info); | |
22 | int load_free_space_tree(struct btrfs_caching_control *caching_ctl); | |
23 | int add_block_group_free_space(struct btrfs_trans_handle *trans, | |
32da5386 | 24 | struct btrfs_block_group *block_group); |
a5ed9182 | 25 | int remove_block_group_free_space(struct btrfs_trans_handle *trans, |
32da5386 | 26 | struct btrfs_block_group *block_group); |
a5ed9182 | 27 | int add_to_free_space_tree(struct btrfs_trans_handle *trans, |
a5ed9182 OS |
28 | u64 start, u64 size); |
29 | int remove_from_free_space_tree(struct btrfs_trans_handle *trans, | |
a5ed9182 OS |
30 | u64 start, u64 size); |
31 | ||
2d77ab3c | 32 | #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS |
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33 | struct btrfs_free_space_info * |
34 | search_free_space_info(struct btrfs_trans_handle *trans, | |
32da5386 | 35 | struct btrfs_block_group *block_group, |
a5ed9182 OS |
36 | struct btrfs_path *path, int cow); |
37 | int __add_to_free_space_tree(struct btrfs_trans_handle *trans, | |
32da5386 | 38 | struct btrfs_block_group *block_group, |
a5ed9182 OS |
39 | struct btrfs_path *path, u64 start, u64 size); |
40 | int __remove_from_free_space_tree(struct btrfs_trans_handle *trans, | |
32da5386 | 41 | struct btrfs_block_group *block_group, |
a5ed9182 OS |
42 | struct btrfs_path *path, u64 start, u64 size); |
43 | int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans, | |
32da5386 | 44 | struct btrfs_block_group *block_group, |
a5ed9182 OS |
45 | struct btrfs_path *path); |
46 | int convert_free_space_to_extents(struct btrfs_trans_handle *trans, | |
32da5386 | 47 | struct btrfs_block_group *block_group, |
a5ed9182 | 48 | struct btrfs_path *path); |
32da5386 | 49 | int free_space_test_bit(struct btrfs_block_group *block_group, |
a5ed9182 | 50 | struct btrfs_path *path, u64 offset); |
2d77ab3c | 51 | #endif |
a5ed9182 OS |
52 | |
53 | #endif |