WNOWAIT          1272 kernel/exit.c  	if (unlikely(options & WNOWAIT)) {
WNOWAIT          1452 kernel/exit.c  	if (!unlikely(options & WNOWAIT))
WNOWAIT          1473 kernel/exit.c  	if (unlikely(options & WNOWAIT))
WNOWAIT          1527 kernel/exit.c  	if (!unlikely(options & WNOWAIT))
WNOWAIT          1760 kernel/exit.c  	if (options & ~(WNOHANG|WNOWAIT|WEXITED|WSTOPPED|WCONTINUED))