Commit | Line | Data |
---|---|---|
eb60ceac CM |
1 | #ifndef __DISKIO__ |
2 | #define __DISKIO__ | |
3 | ||
e20d96d6 | 4 | #include <linux/buffer_head.h> |
eb60ceac | 5 | |
e20d96d6 CM |
6 | #define BTRFS_SUPER_INFO_OFFSET (16 * 1024) |
7 | ||
8 | static inline struct btrfs_node *btrfs_buffer_node(struct buffer_head *bh) | |
9 | { | |
10 | return (struct btrfs_node *)bh->b_data; | |
11 | } | |
12 | ||
13 | static inline struct btrfs_leaf *btrfs_buffer_leaf(struct buffer_head *bh) | |
14 | { | |
15 | return (struct btrfs_leaf *)bh->b_data; | |
16 | } | |
17 | ||
18 | static inline struct btrfs_header *btrfs_buffer_header(struct buffer_head *bh) | |
19 | { | |
20 | return &((struct btrfs_node *)bh->b_data)->header; | |
21 | } | |
22 | ||
23 | struct buffer_head *read_tree_block(struct btrfs_root *root, u64 blocknr); | |
24 | struct buffer_head *find_tree_block(struct btrfs_root *root, u64 blocknr); | |
e089f05c | 25 | int write_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, |
e20d96d6 | 26 | struct buffer_head *buf); |
e089f05c | 27 | int dirty_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, |
e20d96d6 | 28 | struct buffer_head *buf); |
e089f05c | 29 | int clean_tree_block(struct btrfs_trans_handle *trans, |
e20d96d6 | 30 | struct btrfs_root *root, struct buffer_head *buf); |
e089f05c CM |
31 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, struct btrfs_root |
32 | *root, struct btrfs_super_block *s); | |
e20d96d6 CM |
33 | struct btrfs_root *open_ctree(struct super_block *sb, |
34 | struct buffer_head *sb_buffer, | |
35 | struct btrfs_super_block *disk_super); | |
36 | int close_ctree(struct btrfs_root *root); | |
37 | void btrfs_block_release(struct btrfs_root *root, struct buffer_head *buf); | |
e089f05c CM |
38 | int write_ctree_super(struct btrfs_trans_handle *trans, struct btrfs_root *root, |
39 | struct btrfs_super_block *s); | |
123abc88 | 40 | int mkfs(int fd, u64 num_blocks, u32 blocksize); |
eb60ceac | 41 | #endif |