On 21/09/2018 20:17, Dan Williams wrote: > On Fri, Sep 21, 2018 at 7:24 AM David Hildenbrand <david@xxxxxxxxxx> wrote: > [..] >>> Remove the PageReserved flag sounds more reasonable. >>> And Could we still have a flag to identify it is a device private memory, or >>> where these pages coming from? >> >> We could use a page type for that or what you proposed. (as I said, we >> might have to change hibernation code to skip the pages once we drop the >> reserved flag). > > I think it would be reasonable to reject all ZONE_DEVICE pages in > saveable_page(). > Indeed, that sounds like the easiest solution - guess that answer was too easy for me to figure out :) . -- Thanks, David / dhildenb