reclaim_pages
err = reclaim_pages(dev, req->func_id, -1 * req->npages, NULL,
err = reclaim_pages(dev, function_id, optimal_reclaimed_pages(),
applied = reclaim_pages(&folio_list);
unsigned long reclaim_pages(struct list_head *folio_list);
reclaim_pages(&folio_list);
reclaim_pages(&folio_list);