send_signal_locked
send_signal_locked(SIGHUP, SEND_SIG_PRIV, p, PIDTYPE_TGID);
send_signal_locked(SIGCONT, SEND_SIG_PRIV, p, PIDTYPE_TGID);
extern int send_signal_locked(int sig, struct kernel_siginfo *info,
send_signal_locked(SIGSTOP, SEND_SIG_PRIV, task, PIDTYPE_PID);
ret = send_signal_locked(sig, info, p, type);
ret = send_signal_locked(sig, info, t, PIDTYPE_PID);
send_signal_locked(SIGCHLD, &info, parent, PIDTYPE_TGID);
send_signal_locked(signr, info, current, type);
ret = send_signal_locked(sig, SEND_SIG_PRIV, t, PIDTYPE_PID);
send_signal_locked(SIGXCPU, SEND_SIG_PRIV, tsk, PIDTYPE_TGID);
send_signal_locked(signo, SEND_SIG_PRIV, current, PIDTYPE_TGID);
send_signal_locked(signo, SEND_SIG_PRIV, tsk, PIDTYPE_TGID);