diff options
Diffstat (limited to 'fs/btrfs/disk-io.h')
| -rw-r--r-- | fs/btrfs/disk-io.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h new file mode 100644 index 00000000000..ee95fa05c4a --- /dev/null +++ b/fs/btrfs/disk-io.h @@ -0,0 +1,21 @@ +#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); +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 update_root_block(struct ctree_root *root); + +#endif |