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#ifndef __DISKIO__
#define __DISKIO__
struct tree_buffer {
u64 blocknr;
int count;
union {
struct node node;
struct leaf leaf;
};
};
struct tree_buffer *read_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);
struct tree_buffer *alloc_free_block(struct ctree_root *root);
int write_ctree_super(struct ctree_root *root, struct ctree_super_block *s);
int mkfs(int fd);
#define CTREE_SUPER_INFO_OFFSET(bs) (16 * (bs))
#endif
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