1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 |
- // SPDX-License-Identifier: GPL-2.0+
- #ifndef __BTRFS_DISK_IO_H__
- #define __BTRFS_DISK_IO_H__
- #include <linux/sizes.h>
- #include <fs_internal.h>
- #include "ctree.h"
- #include "disk-io.h"
- #define BTRFS_SUPER_INFO_OFFSET SZ_64K
- #define BTRFS_SUPER_INFO_SIZE SZ_4K
- /* From btrfs-progs */
- int read_whole_eb(struct btrfs_fs_info *info, struct extent_buffer *eb, int mirror);
- struct extent_buffer* read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
- u64 parent_transid);
- int read_extent_data(struct btrfs_fs_info *fs_info, char *data, u64 logical,
- u64 *len, int mirror);
- struct extent_buffer* btrfs_find_create_tree_block(
- struct btrfs_fs_info *fs_info, u64 bytenr);
- struct extent_buffer *btrfs_find_tree_block(struct btrfs_fs_info *fs_info,
- u64 bytenr, u32 blocksize);
- struct btrfs_root *btrfs_read_fs_root_no_cache(struct btrfs_fs_info *fs_info,
- struct btrfs_key *location);
- struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info,
- struct btrfs_key *location);
- void btrfs_setup_root(struct btrfs_root *root, struct btrfs_fs_info *fs_info,
- u64 objectid);
- void btrfs_free_fs_info(struct btrfs_fs_info *fs_info);
- struct btrfs_fs_info *btrfs_new_fs_info(void);
- int btrfs_check_fs_compatibility(struct btrfs_super_block *sb);
- int btrfs_setup_all_roots(struct btrfs_fs_info *fs_info);
- void btrfs_release_all_roots(struct btrfs_fs_info *fs_info);
- void btrfs_cleanup_all_caches(struct btrfs_fs_info *fs_info);
- struct btrfs_fs_info *open_ctree_fs_info(struct blk_desc *desc,
- struct disk_partition *part);
- int close_ctree_fs_info(struct btrfs_fs_info *fs_info);
- int btrfs_read_dev_super(struct blk_desc *desc, struct disk_partition *part,
- struct btrfs_super_block *sb);
- int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid);
- int btrfs_set_buffer_uptodate(struct extent_buffer *buf);
- int btrfs_csum_data(u16 csum_type, const u8 *data, u8 *out, size_t len);
- int csum_tree_block_size(struct extent_buffer *buf, u16 csum_sectorsize,
- int verify, u16 csum_type);
- #endif
|