taglinefilesource code
WNOHANG246arch/alpha/kernel/signal.cwhile (sys_waitpid(-1,NULL,WNOHANG) > 0)
WNOHANG181arch/i386/kernel/signal.cwhile (sys_waitpid(-1,NULL,WNOHANG) > 0)
WNOHANG228arch/mips/kernel/signal.cwhile (sys_waitpid(-1,NULL,WNOHANG) > 0)
WNOHANG554kernel/exit.cif (options & WNOHANG)