__send_signal    1241 kernel/signal.c 	return __send_signal(sig, info, t, type, force);
__send_signal    1538 kernel/signal.c 			ret = __send_signal(sig, &info, p, PIDTYPE_TGID, false);
__send_signal    2001 kernel/signal.c 		__send_signal(sig, &info, tsk->parent, PIDTYPE_TGID, false);