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- #ifndef __DISKIO__
- #define __DISKIO__
- #include <linux/buffer_head.h>
- #define BTRFS_SUPER_INFO_OFFSET (16 * 1024)
- static inline struct btrfs_node *btrfs_buffer_node(struct buffer_head *bh)
- {
- return (struct btrfs_node *)bh->b_data;
- }
- static inline struct btrfs_leaf *btrfs_buffer_leaf(struct buffer_head *bh)
- {
- return (struct btrfs_leaf *)bh->b_data;
- }
- static inline struct btrfs_header *btrfs_buffer_header(struct buffer_head *bh)
- {
- return &((struct btrfs_node *)bh->b_data)->header;
- }
- struct buffer_head *read_tree_block(struct btrfs_root *root, u64 blocknr);
- struct buffer_head *btrfs_find_create_tree_block(struct btrfs_root *root,
- u64 blocknr);
- int write_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct buffer_head *buf);
- int dirty_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct buffer_head *buf);
- int clean_tree_block(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct buffer_head *buf);
- int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
- struct btrfs_root *root);
- struct btrfs_root *open_ctree(struct super_block *sb);
- int close_ctree(struct btrfs_root *root);
- void btrfs_block_release(struct btrfs_root *root, struct buffer_head *buf);
- int write_ctree_super(struct btrfs_trans_handle *trans,
- struct btrfs_root *root);
- struct buffer_head *btrfs_find_tree_block(struct btrfs_root *root, u64 blocknr);
- int btrfs_csum_data(struct btrfs_root * root, char *data, size_t len,
- char *result);
- struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info,
- struct btrfs_key *location);
- u64 bh_blocknr(struct buffer_head *bh);
- #endif
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