SIGNAL_CLD_MASK 246 include/linux/sched/signal.h #define SIGNAL_STOP_MASK (SIGNAL_CLD_MASK | SIGNAL_STOP_STOPPED | \ SIGNAL_CLD_MASK 2556 kernel/signal.c if (unlikely(signal->flags & SIGNAL_CLD_MASK)) { SIGNAL_CLD_MASK 2564 kernel/signal.c signal->flags &= ~SIGNAL_CLD_MASK;