On Wed 12-01-22 22:35:17, sxwjean@xxxxxx wrote: > From: Xiongwei Song <sxwjean@xxxxxxxxx> > > When requesting pages info by /proc/kpage*, the pages in ZONE_DEVICE were > ignored. > > The pfn_to_devmap_page() function can help to get page that belongs to > ZONE_DEVICE. Why is this needed? Who would consume that information and what for? -- Michal Hocko SUSE Labs