ZONE_DEVICE 970 include/linux/mm.h return page_zonenum(page) == ZONE_DEVICE; ZONE_DEVICE 481 mm/memory_hotplug.c if (zone_idx(zone) == ZONE_DEVICE) ZONE_DEVICE 290 mm/memremap.c zone = &NODE_DATA(nid)->node_zones[ZONE_DEVICE]; ZONE_DEVICE 303 mm/memremap.c memmap_init_zone_device(&NODE_DATA(nid)->node_zones[ZONE_DEVICE], ZONE_DEVICE 5895 mm/page_alloc.c if (zone == ZONE_DEVICE) { ZONE_DEVICE 5958 mm/page_alloc.c if (WARN_ON_ONCE(!pgmap || zone_idx(zone) != ZONE_DEVICE))