- addr=?
userspace client
+- per-mds session struct.. and put the cap_ttl in there!
- move the size check(s) on read from _read() into FileCache
- validate dn leases
- clean up ll_ interface, now that we have leases!
- should we be using debugfs?
- a dir for each client instance (client###)?
- hooks to get mds, osd, monmap epoch #s
-- convert rest of ceph_fs.h to le32/le64 notation, cleaning up userspace appropriately
- nfs exporting
- fill_trace needs to use d_splice_alias
- lookup needs to return last_dentry if it gets swapped by fill_trace/d_splice_alias