1 files changed, 50 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
new file mode 100644
index 0000000000..a347912078
--- /dev/null
+++ b/fs/btrfs/disk-io.h
@@ -0,0 +1,50 @@
+// 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