+big items
+- quotas
+ - accounting
+ - enforcement
+- rados cow/snapshot infrastructure
+- mds snapshots
+- mds security enforcement
+- client, user authentication
+- cas
+
+- meta vs data crush rules
+- ip-less startup for userspace items
+- use libuuid
userspace client
- rm -rf on fragmented directory
- should we be using debugfs?
- a dir for each client instance (client###)?
- hooks to get mds, osd, monmap epoch #s
-- nfs exporting
- - build fat fh's with multiple ancestors.. filenames..?
- vfs
- can we use dentry_path(), if it gets merged into mainline?
- io / osd client