[PATCH] nvmet-rdma: Fix missing dma sync to nvme data structures

[Sagi Grimberg]

> Hi Sagi,

> If we keep the patch as it is in 4.10-rc, than I think IB/rxe will
> break with plays with virtual addresses.

I've been seeing reports that nvme-rdma is not
useable with rxe as it crashes pretty consistently.

In any event, we can either add this with 'ib_' prefix
into 4.10-rc and add a patch to Bart's series or
we can send a dedicated patch for stable.

Christoph, whats your preference?