quoted

2) Could be provide a mmu variant to ordinary users that's just good
enough but maybe not as fast as what we have today? And limit
FOLL_LONGTERM to special, privileged users?

rdma has never been privileged

Feel free to correct me if I'm wrong: it requires special networking
hardware and the admin/kernel has to prepare the system in a way such
that it can be used.

-- 
Thanks,

David / dhildenb