small CMB cleanups

[Logan Gunthorpe]

Hey,

I've reviewed both these patches and tested them on my p2p setup.

Reviewed-by: Logan Gunthorpe <logang at deltatee.com>

Logan

On 15/01/18 08:33 AM, Christoph Hellwig wrote:
> Hi all,
> 
> these two CMB cleanups were part of the p2p support series, but really
> are nvme specific.  Given that we're running out of time for the 4.16
> merge window, what about pulling them in through the nvme tree?
>