On Thu, Sep 15, 2016 at 01:39:11PM +0100, Alex Bligh wrote: > That's probably right in the case of file-based back ends that > are running on a Linux OS. But gonbdserver for instance supports > (e.g.) Ceph based backends, where each connection might be talking > to a completely separate ceph node, and there may be no cache > consistency between connections.
Yes, if you don't have a cache coherent backend you are generally screwed with a multiqueue protocol.