| Chris Mason | eb60cea | 2007-02-02 09:18:22 -0500 | [diff] [blame] | 1 | #ifndef __DISKIO__ |
| 2 | #define __DISKIO__ |
| 3 | |
| Chris Mason | e20d96d | 2007-03-22 12:13:20 -0400 | [diff] [blame] | 4 | #include <linux/buffer_head.h> |
| Chris Mason | 3768f36 | 2007-03-13 16:47:54 -0400 | [diff] [blame] | 5 | |
| Chris Mason | 123abc8 | 2007-03-14 14:14:43 -0400 | [diff] [blame] | 6 | #define BTRFS_SUPER_INFO_OFFSET (16 * 1024) |
| Chris Mason | eb60cea | 2007-02-02 09:18:22 -0500 | [diff] [blame] | 7 | |
| Chris Mason | e20d96d | 2007-03-22 12:13:20 -0400 | [diff] [blame] | 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); |
| Chris Mason | d98237b | 2007-03-28 13:57:48 -0400 | [diff] [blame] | 24 | struct buffer_head *btrfs_find_create_tree_block(struct btrfs_root *root, |
| 25 | u64 blocknr); |
| Chris Mason | e20d96d | 2007-03-22 12:13:20 -0400 | [diff] [blame] | 26 | int write_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, |
| 27 | struct buffer_head *buf); |
| 28 | int dirty_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, |
| 29 | struct buffer_head *buf); |
| 30 | int clean_tree_block(struct btrfs_trans_handle *trans, |
| 31 | struct btrfs_root *root, struct buffer_head *buf); |
| Chris Mason | 79154b1 | 2007-03-22 15:59:16 -0400 | [diff] [blame] | 32 | int btrfs_commit_transaction(struct btrfs_trans_handle *trans, |
| 33 | struct btrfs_root *root); |
| Chris Mason | 2c90e5d | 2007-04-02 10:50:19 -0400 | [diff] [blame] | 34 | struct btrfs_root *open_ctree(struct super_block *sb); |
| Chris Mason | e20d96d | 2007-03-22 12:13:20 -0400 | [diff] [blame] | 35 | int close_ctree(struct btrfs_root *root); |
| 36 | void btrfs_block_release(struct btrfs_root *root, struct buffer_head *buf); |
| Chris Mason | 79154b1 | 2007-03-22 15:59:16 -0400 | [diff] [blame] | 37 | int write_ctree_super(struct btrfs_trans_handle *trans, |
| 38 | struct btrfs_root *root); |
| Chris Mason | d98237b | 2007-03-28 13:57:48 -0400 | [diff] [blame] | 39 | struct buffer_head *btrfs_find_tree_block(struct btrfs_root *root, u64 blocknr); |
| Chris Mason | f254e52 | 2007-03-29 15:15:27 -0400 | [diff] [blame] | 40 | int btrfs_csum_data(struct btrfs_root * root, char *data, size_t len, |
| 41 | char *result); |
| Chris Mason | 0f7d52f | 2007-04-09 10:42:37 -0400 | [diff] [blame] | 42 | struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info, |
| 43 | struct btrfs_key *location); |
| Chris Mason | 7eccb90 | 2007-04-11 15:53:25 -0400 | [diff] [blame] | 44 | u64 bh_blocknr(struct buffer_head *bh); |
| Chris Mason | 8352d8a | 2007-04-12 10:43:05 -0400 | [diff] [blame] | 45 | int btrfs_insert_dev_radix(struct btrfs_root *root, |
| 46 | struct block_device *bdev, |
| Chris Mason | b4100d6 | 2007-04-12 12:14:00 -0400 | [diff] [blame^] | 47 | u64 device_id, |
| Chris Mason | 8352d8a | 2007-04-12 10:43:05 -0400 | [diff] [blame] | 48 | u64 block_start, |
| 49 | u64 num_blocks); |
| 50 | int btrfs_map_bh_to_logical(struct btrfs_root *root, struct buffer_head *bh, |
| 51 | u64 logical); |
| Chris Mason | eb60cea | 2007-02-02 09:18:22 -0500 | [diff] [blame] | 52 | #endif |