david@l8s.co.uk (David Laight) writes:

>You really do need (at least the ability to) leave the synchronisation
>to the driver itself.  Allowing the driver to do series of tranfsers
>before any synchronisation operation.

What about doing the opposite? Making all accesses synchronized
by default and allowing the driver an exception to postpone
the synchronization until after the last access.

-- 
-- 
                                Michael van Elst
Internet: mlelstv@serpens.de
                                "A potential Snark may lurk in every tree."