On Wed, Sep 12, 2018 at 07:22:22PM -0700, Dan Williams wrote: > In preparation for consolidating all ZONE_DEVICE enabling via > devm_memremap_pages(), teach it how to handle the constraints of > MEMORY_DEVICE_PRIVATE ranges. MEMORY_DEVICE_PRIVATE still somehow boggles my mind, but otherwise this looks sensible to me: Acked-by: Christoph Hellwig <hch@xxxxxx>