PG_MARKER
KASSERT((m->flags & PG_MARKER) == 0,
KASSERT((m->flags & (PG_FICTITIOUS | PG_MARKER)) == 0,
marker->flags = PG_MARKER;
if (__predict_false((m->flags & PG_MARKER) != 0))
KASSERT((m->flags & PG_MARKER) == 0,
if ((m->flags & PG_MARKER) == 0) {
if (__predict_false((m->flags & PG_MARKER) != 0))