155 static void *pack_shadow(unsigned long eviction, struct zone *zone)  in pack_shadow()  argument
157 	eviction = (eviction << NODES_SHIFT) | zone_to_nid(zone);  in pack_shadow()
158 	eviction = (eviction << ZONES_SHIFT) | zone_idx(zone);  in pack_shadow()
165 			  struct zone **zone,  in unpack_shadow()  argument
181 	*zone = NODE_DATA(nid)->node_zones + zid;  in unpack_shadow()
183 	refault = atomic_long_read(&(*zone)->inactive_age);  in unpack_shadow()
215 	struct zone *zone = page_zone(page);  in workingset_eviction()  local
218 	eviction = atomic_long_inc_return(&zone->inactive_age);  in workingset_eviction()
219 	return pack_shadow(eviction, zone);  in workingset_eviction()
234 	struct zone *zone;  in workingset_refault()  local
236 	unpack_shadow(shadow, &zone, &refault_distance);  in workingset_refault()
237 	inc_zone_state(zone, WORKINGSET_REFAULT);  in workingset_refault()
239 	if (refault_distance <= zone_page_state(zone, NR_ACTIVE_FILE)) {  in workingset_refault()
240 		inc_zone_state(zone, WORKINGSET_ACTIVATE);  in workingset_refault()