SIGIO_MASK         75 arch/um/os-Linux/signal.c 		signals_pending |= SIGIO_MASK;
SIGIO_MASK        298 arch/um/os-Linux/signal.c 		if (save_pending & SIGIO_MASK)
SIGIO_MASK        308 arch/um/os-Linux/signal.c 		if (!(signals_pending & SIGIO_MASK) && (signals_active & SIGALRM_MASK))