PG_NOTMETA
vm_page_flag_set(m, PG_NOTMETA);
if (m->flags & PG_NOTMETA) {
if (m->flags & PG_NOTMETA) {
if (isblkdev && (m->flags & PG_NOTMETA)) {
if (isblkdev && (m->flags & PG_NOTMETA)) {