109 	 * Blocked signals are never ignored, since the  in sig_ignored()
113 	if (sigismember(&t->blocked, sig) || sigismember(&t->real_blocked, sig))  in sig_ignored()
129  * signals, globally pending signals, and blocked signals.
131 static inline bool has_pending_signals(sigset_t *signal, sigset_t *blocked)  in has_pending_signals()  argument
139 			ready |= signal->sig[i] &~ blocked->sig[i];  in has_pending_signals()
142 	case 4: ready  = signal->sig[3] &~ blocked->sig[3];  in has_pending_signals()
143 		ready |= signal->sig[2] &~ blocked->sig[2];  in has_pending_signals()
144 		ready |= signal->sig[1] &~ blocked->sig[1];  in has_pending_signals()
145 		ready |= signal->sig[0] &~ blocked->sig[0];  in has_pending_signals()
148 	case 2: ready  = signal->sig[1] &~ blocked->sig[1];  in has_pending_signals()
149 		ready |= signal->sig[0] &~ blocked->sig[0];  in has_pending_signals()
152 	case 1: ready  = signal->sig[0] &~ blocked->sig[0];  in has_pending_signals()
162 	    PENDING(&t->pending, &t->blocked) ||  in recalc_sigpending_tsk()
163 	    PENDING(&t->signal->shared_pending, &t->blocked) ||  in recalc_sigpending_tsk()
676 	if (!((pending->signal.sig[0] & ~tsk->blocked.sig[0]) & SYNCHRONOUS_MASK))  in dequeue_synchronous_signal()
718  * goes through ->blocked
947 	if (sigismember(&p->blocked, sig))  in wants_signal()
1286  * since we do not want to have a signal handler that was blocked
1287  * be invoked when user space had explicitly blocked it.
1297 	int ret, blocked, ignored;  in force_sig_info_to_task()  local
1304 	blocked = sigismember(&t->blocked, sig);  in force_sig_info_to_task()
1305 	if (blocked || ignored || (handler != HANDLER_CURRENT)) {  in force_sig_info_to_task()
1309 		if (blocked)  in force_sig_info_to_task()
1310 			sigdelset(&t->blocked, sig);  in force_sig_info_to_task()
1320 	/* This can happen if the signal was already pending and blocked */  in force_sig_info_to_task()
1790 	 * process if SIGTRAP is blocked, however, delivering the signal  in send_sig_perf()
1795 	info.si_perf_flags = sigismember(&current->blocked, info.si_signo) ?  in send_sig_perf()
2010 			 * The signal was ignored and blocked. The timer  in posixtimer_send_sigqueue()
2011 			 * expiry queued it because blocked signals are  in posixtimer_send_sigqueue()
2067 	 * If the signal is on the ignore list, it got blocked after it was  in posixtimer_send_sigqueue()
2246 		 * blocked sys_wait4 might now return -ECHILD.  in do_notify_parent()
2769 	/* If the (new) signal is now blocked, requeue it.  */  in ptrace_signal()
2770 	if (sigismember(&current->blocked, signr) ||  in ptrace_signal()
2916 			signr = dequeue_signal(&current->blocked, &ksig->info, &type);  in get_signal()
3050  * signal_delivered - called after signal delivery to update blocked signals
3055  * delivered. It updates the blocked signals accordingly (@ksig->ka.sa.sa_mask
3056  * is always blocked), and the signal itself is blocked unless %SA_NODEFER
3061 	sigset_t blocked;  in signal_delivered()  local
3069 	sigorsets(&blocked, &current->blocked, &ksig->ka.sa.sa_mask);  in signal_delivered()
3071 		sigaddset(&blocked, ksig->sig);  in signal_delivered()
3072 	set_current_blocked(&blocked);  in signal_delivered()
3105 		if (!has_pending_signals(&retarget, &t->blocked))  in retarget_shared_pending()
3108 		sigandsets(&retarget, &retarget, &t->blocked);  in retarget_shared_pending()
3149 	unblocked = tsk->blocked;  in exit_signals()
3192 		/* A set of now blocked but previously unblocked signals. */  in __set_task_blocked()
3193 		sigandnsets(&newblocked, newset, &current->blocked);  in __set_task_blocked()
3196 	tsk->blocked = *newset;  in __set_task_blocked()
3201  * set_current_blocked - change current->blocked mask
3204  * It is wrong to change ->blocked directly, this helper should be used
3219 	 * to do. The current->blocked shouldn't be modified by other task.  in __set_current_blocked()
3221 	if (sigequalsets(&tsk->blocked, newset))  in __set_current_blocked()
3242 	/* Lockless, only current can change ->blocked, never from irq */  in sigprocmask()
3244 		*oldset = tsk->blocked;  in sigprocmask()
3248 		sigorsets(&newset, &tsk->blocked, set);  in sigprocmask()
3251 		sigandnsets(&newset, &tsk->blocked, set);  in sigprocmask()
3286 	current->saved_sigmask = current->blocked;  in set_user_sigmask()
3306 	current->saved_sigmask = current->blocked;  in set_compat_user_sigmask()
3314  *  sys_rt_sigprocmask - change the list of currently blocked signals
3330 	old_set = current->blocked;  in SYSCALL_DEFINE4()
3354 	sigset_t old_set = current->blocked;  in COMPAT_SYSCALL_DEFINE4()
3383 	sigandsets(set, &current->blocked, set);  in do_sigpending()
3388  *			while blocked
3778 		tsk->real_blocked = tsk->blocked;  in do_sigtimedwait()
3779 		sigandsets(&tsk->blocked, &tsk->blocked, &mask);  in do_sigtimedwait()
4326 		 *   whether or not it is blocked."  in do_sigaction()
4331 		 *   be discarded, whether or not it is blocked"  in do_sigaction()
4549  *  sys_sigprocmask - examine and change blocked signals
4564 	old_set = current->blocked.sig[0];  in SYSCALL_DEFINE3()
4570 		new_blocked = current->blocked;  in SYSCALL_DEFINE3()
4763 	return current->blocked.sig[0];  in SYSCALL_DEFINE0()
4768 	int old = current->blocked.sig[0];  in SYSCALL_DEFINE1()
4812 	current->saved_sigmask = current->blocked;  in sigsuspend()
4860 	sigset_t blocked;  in SYSCALL_DEFINE1()  local
4861 	siginitset(&blocked, mask);  in SYSCALL_DEFINE1()
4862 	return sigsuspend(&blocked);  in SYSCALL_DEFINE1()
4868 	sigset_t blocked;  in SYSCALL_DEFINE3()  local
4869 	siginitset(&blocked, mask);  in SYSCALL_DEFINE3()
4870 	return sigsuspend(&blocked);  in SYSCALL_DEFINE3()