On 16.07.19 16:12, David Hildenbrand wrote: > On 16.07.19 16:00, Dave Hansen wrote: >> On 7/16/19 2:55 AM, Michael S. Tsirkin wrote: >>> The approach here is very close to what on-demand hinting that is >>> already upstream does. >> >> Are you referring to the s390 (and powerpc) stuff that is hidden behind >> arch_free_page()? >> > > I assume Michael meant "free page reporting". > (https://lwn.net/Articles/759413/) -- Thanks, David / dhildenb