- mds scrubbing
kclient
-- replace radix tree in monc with rbtree on statfs requests
- ENOMEM
- message pools
- sockets? (this can actual generates a lockdep warning :/)
- statlite
- audit/combine/rework/whatever invalidate, writeback threads and associated invariants
- add cap to release if we get fouled up in fill_inode et al?
-- make caps reservations per-client
- fix up ESTALE handling
- don't retry on ENOMEM on non-nofail requests in kick_requests
- make cap import/export more efficient?