Re: [RFC 1/2] vfio/pci: keep the prefetchable attribute of a BAR region in VMA

[Christoph Hellwig]

On Wed, May 05, 2021 at 07:02:31PM +0100, Catalin Marinas wrote:
> > Furthermore, ioremap() already gives you a Device memory type, and we're
> > tight on MAIR space.
> 
> We have MT_DEVICE_GRE currently reserved though no in-kernel user, we
> might as well remove it.

Please do.  The more we can cut down on different memory types, the
better.