39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
#ifndef __DISKIO__
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#define __DISKIO__
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#include "list.h"
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struct btrfs_buffer {
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u64 blocknr;
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u64 dev_blocknr;
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int count;
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int fd;
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struct list_head dirty;
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struct list_head cache;
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union {
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struct btrfs_node node;
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struct btrfs_leaf leaf;
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};
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};
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struct btrfs_buffer *read_tree_block(struct btrfs_root *root, u64 blocknr);
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struct btrfs_buffer *find_tree_block(struct btrfs_root *root, u64 blocknr);
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int write_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
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struct btrfs_buffer *buf);
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int dirty_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
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struct btrfs_buffer *buf);
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int clean_tree_block(struct btrfs_trans_handle *trans,
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struct btrfs_root *root, struct btrfs_buffer *buf);
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int btrfs_commit_transaction(struct btrfs_trans_handle *trans, struct btrfs_root
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*root, struct btrfs_super_block *s);
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struct btrfs_root *open_ctree(char *filename, struct btrfs_super_block *s);
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struct btrfs_root *open_ctree_fd(int fp, struct btrfs_super_block *super);
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int close_ctree(struct btrfs_root *root, struct btrfs_super_block *s);
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void btrfs_block_release(struct btrfs_root *root, struct btrfs_buffer *buf);
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int write_ctree_super(struct btrfs_trans_handle *trans, struct btrfs_root *root,
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struct btrfs_super_block *s);
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int btrfs_map_bh_to_logical(struct btrfs_root *root, struct btrfs_buffer *bh,
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u64 logical);
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#define BTRFS_SUPER_INFO_OFFSET (16 * 1024)
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#endif
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