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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /fs/btrfs/free-space-tree.h | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'fs/btrfs/free-space-tree.h')
| -rw-r--r-- | fs/btrfs/free-space-tree.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-tree.h b/fs/btrfs/free-space-tree.h new file mode 100644 index 000000000..dc2463e4c --- /dev/null +++ b/fs/btrfs/free-space-tree.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2015 Facebook. All rights reserved. + */ + +#ifndef BTRFS_FREE_SPACE_TREE_H +#define BTRFS_FREE_SPACE_TREE_H + +struct btrfs_caching_control; + +/* + * The default size for new free space bitmap items. The last bitmap in a block + * group may be truncated, and none of the free space tree code assumes that + * existing bitmaps are this size. + */ +#define BTRFS_FREE_SPACE_BITMAP_SIZE 256 +#define BTRFS_FREE_SPACE_BITMAP_BITS (BTRFS_FREE_SPACE_BITMAP_SIZE * BITS_PER_BYTE) + +void set_free_space_tree_thresholds(struct btrfs_block_group *block_group); +int btrfs_create_free_space_tree(struct btrfs_fs_info *fs_info); +int btrfs_clear_free_space_tree(struct btrfs_fs_info *fs_info); +int load_free_space_tree(struct btrfs_caching_control *caching_ctl); +int add_block_group_free_space(struct btrfs_trans_handle *trans, + struct btrfs_block_group *block_group); +int remove_block_group_free_space(struct btrfs_trans_handle *trans, + struct btrfs_block_group *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); + +#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS +struct btrfs_free_space_info * +search_free_space_info(struct btrfs_trans_handle *trans, + struct btrfs_block_group *block_group, + struct btrfs_path *path, int cow); +int __add_to_free_space_tree(struct btrfs_trans_handle *trans, + struct btrfs_block_group *block_group, + struct btrfs_path *path, u64 start, u64 size); +int __remove_from_free_space_tree(struct btrfs_trans_handle *trans, + struct btrfs_block_group *block_group, + struct btrfs_path *path, u64 start, u64 size); +int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans, + struct btrfs_block_group *block_group, + struct btrfs_path *path); +int convert_free_space_to_extents(struct btrfs_trans_handle *trans, + struct btrfs_block_group *block_group, + struct btrfs_path *path); +int free_space_test_bit(struct btrfs_block_group *block_group, + struct btrfs_path *path, u64 offset); +#endif + +#endif |