- general cache lookup with correct locking
- supporting 'NEGATIVE' as well as positive entries
- allowing an EXPIRED time on cache items, and removing
- items after they expire, and are no longe in-use.
+ items after they expire, and are no longer in-use.
- making requests to user-space to fill in cache entries
- allowing user-space to directly set entries in the cache
- delaying RPC requests that depend on as-yet incomplete