UMA_ZFLAG_CTORDTOR
zone->uz_flags |= UMA_ZFLAG_TRASH | UMA_ZFLAG_CTORDTOR;
zone->uz_flags |= UMA_ZFLAG_CTORDTOR;
if (__predict_false((uz_flags & UMA_ZFLAG_CTORDTOR) != 0) &&
__predict_false((uz_flags & UMA_ZFLAG_CTORDTOR) != 0))