projects / deliverable / linux.git / blame
| 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); | |
| d98237b3 CM |
24 | struct buffer_head *btrfs_find_create_tree_block(struct btrfs_root *root, |
| 25 | u64 blocknr); | |
| e089f05c | 26 | int write_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, |
| e20d96d6 | 27 | struct buffer_head *buf); |
| e089f05c | 28 | int dirty_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, |
| e20d96d6 | 29 | struct buffer_head *buf); |
| e089f05c | 30 | int clean_tree_block(struct btrfs_trans_handle *trans, |
| e20d96d6 | 31 | struct btrfs_root *root, struct buffer_head *buf); |
| 79154b1b CM |
32 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, |
| 33 | struct btrfs_root *root); | |
| 2c90e5d6 | 34 | struct btrfs_root *open_ctree(struct super_block *sb); |
| e20d96d6 CM |
35 | int close_ctree(struct btrfs_root *root); |
| 36 | void btrfs_block_release(struct btrfs_root *root, struct buffer_head *buf); | |
| 79154b1b CM |
37 | int write_ctree_super(struct btrfs_trans_handle *trans, |
| 38 | struct btrfs_root *root); | |
| d98237b3 | 39 | struct buffer_head *btrfs_find_tree_block(struct btrfs_root *root, u64 blocknr); |
| f254e52c CM |
40 | int btrfs_csum_data(struct btrfs_root * root, char *data, size_t len, |
| 41 | char *result); | |
| 0f7d52f4 CM |
42 | struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info, |
| 43 | struct btrfs_key *location); | |
| 7eccb903 | 44 | u64 bh_blocknr(struct buffer_head *bh); |
| eb60ceac | 45 | #endif |