On Wed 09-10-19 15:24:05, David Hildenbrand wrote: > On 09.10.19 15:22, Michal Hocko wrote: > > On Wed 09-10-19 14:58:24, David Hildenbrand wrote: > > [...] > >> I would be fine with this, but it means that - for now - the three > >> /proc/ files won't be able to deal with ZONE_DEVICE memory. > > > > Thanks for the clarification. Is this an actual problem though? Do we > > have any consumers of the functionality? > > > > I don't know, that's why I was being careful in not changing its behavior.
Can we simply go with pfn_to_online_page. I would be quite surprised if anybody was really examining zone device memory ranges as they are static IIUC. If there is some usecase I am pretty sure we will learn that and can address it accordingly. -- Michal Hocko SUSE Labs
