diff options
| author | Chris Mason <chris.mason@oracle.com> | 2007-02-02 09:18:22 -0500 |
|---|---|---|
| committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-02-02 09:18:22 -0500 |
| commit | 215ad20a9b077d44ea1cf58b1bac64a7f42d058a (patch) | |
| tree | 6f1ed85ebf6bd133cb8c7089100963f45cdf341c /disk-io.h | |
| parent | 5622872d31e6f19bab5e5896ed6272872e0a980c (diff) | |
Add backing store, memory management
Diffstat (limited to 'disk-io.h')
| -rw-r--r-- | disk-io.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/disk-io.h b/disk-io.h new file mode 100644 index 00000000..ee95fa05 --- /dev/null +++ b/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 |