#ifndef __DISKIO__
#define __DISKIO__
-struct tree_buffer {
- u64 blocknr;
- int count;
- union {
- struct node node;
- struct leaf leaf;
- };
-};
+#include <linux/buffer_head.h>
-struct tree_buffer *read_tree_block(struct ctree_root *root, u64 blocknr);
-struct tree_buffer *find_tree_block(struct ctree_root *root, u64 blocknr);
-int write_tree_block(struct ctree_root *root, struct tree_buffer *buf);
-struct ctree_root *open_ctree(char *filename, struct ctree_super_block *s);
-int close_ctree(struct ctree_root *root);
-void tree_block_release(struct ctree_root *root, struct tree_buffer *buf);
-int write_ctree_super(struct ctree_root *root, struct ctree_super_block *s);
-int mkfs(int fd);
+#define BTRFS_SUPER_INFO_OFFSET (16 * 1024)
-#define CTREE_SUPER_INFO_OFFSET(bs) (16 * (bs))
+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,
+ struct buffer_head *sb_buffer,
+ struct btrfs_super_block *disk_super);
+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);
#endif