104 	 * Blocked signals are never ignored, since the  in sig_ignored()
108 	if (sigismember(&t->blocked, sig) || sigismember(&t->real_blocked, sig))  in sig_ignored()
124  * signals, globally pending signals, and blocked signals.
126 static inline bool has_pending_signals(sigset_t *signal, sigset_t *blocked)  in has_pending_signals()  argument
134 			ready |= signal->sig[i] &~ blocked->sig[i];  in has_pending_signals()
137 	case 4: ready  = signal->sig[3] &~ blocked->sig[3];  in has_pending_signals()
138 		ready |= signal->sig[2] &~ blocked->sig[2];  in has_pending_signals()
139 		ready |= signal->sig[1] &~ blocked->sig[1];  in has_pending_signals()
140 		ready |= signal->sig[0] &~ blocked->sig[0];  in has_pending_signals()
143 	case 2: ready  = signal->sig[1] &~ blocked->sig[1];  in has_pending_signals()
144 		ready |= signal->sig[0] &~ blocked->sig[0];  in has_pending_signals()
147 	case 1: ready  = signal->sig[0] &~ blocked->sig[0];  in has_pending_signals()
157 	    PENDING(&t->pending, &t->blocked) ||  in recalc_sigpending_tsk()
158 	    PENDING(&t->signal->shared_pending, &t->blocked) ||  in recalc_sigpending_tsk()
716 	if (!((pending->signal.sig[0] & ~tsk->blocked.sig[0]) & SYNCHRONOUS_MASK))  in dequeue_synchronous_signal()
758  * goes through ->blocked
975 	if (sigismember(&p->blocked, sig))  in wants_signal()
1303  * since we do not want to have a signal handler that was blocked
1304  * be invoked when user space had explicitly blocked it.
1313 	int ret, blocked, ignored;  in force_sig_info_to_task()  local
1320 	blocked = sigismember(&t->blocked, sig);  in force_sig_info_to_task()
1321 	if (blocked || ignored) {  in force_sig_info_to_task()
1323 		if (blocked) {  in force_sig_info_to_task()
1324 			sigdelset(&t->blocked, sig);  in force_sig_info_to_task()
1983 		 * blocked sys_wait4 might now return -ECHILD.  in do_notify_parent()
2518 	/* If the (new) signal is now blocked, requeue it.  */  in ptrace_signal()
2519 	if (sigismember(&current->blocked, signr)) {  in ptrace_signal()
2648 			signr = dequeue_signal(current, &current->blocked, &ksig->info);  in get_signal()
2773  * delivered. It updates the blocked signals accordingly (@ksig->ka.sa.sa_mask
2774  * is always blocked, and the signal itself is blocked unless %SA_NODEFER
2779 	sigset_t blocked;  in signal_delivered()  local
2787 	sigorsets(&blocked, &current->blocked, &ksig->ka.sa.sa_mask);  in signal_delivered()
2789 		sigaddset(&blocked, ksig->sig);  in signal_delivered()
2790 	set_current_blocked(&blocked);  in signal_delivered()
2821 		if (!has_pending_signals(&retarget, &t->blocked))  in retarget_shared_pending()
2824 		sigandsets(&retarget, &retarget, &t->blocked);  in retarget_shared_pending()
2863 	unblocked = tsk->blocked;  in exit_signals()
2906 		/* A set of now blocked but previously unblocked signals. */  in __set_task_blocked()
2907 		sigandnsets(&newblocked, newset, &current->blocked);  in __set_task_blocked()
2910 	tsk->blocked = *newset;  in __set_task_blocked()
2915  * set_current_blocked - change current->blocked mask
2918  * It is wrong to change ->blocked directly, this helper should be used
2933 	 * to do. The current->blocked shouldn't be modified by other task.  in __set_current_blocked()
2935 	if (sigequalsets(&tsk->blocked, newset))  in __set_current_blocked()
2956 	/* Lockless, only current can change ->blocked, never from irq */  in sigprocmask()
2958 		*oldset = tsk->blocked;  in sigprocmask()
2962 		sigorsets(&newset, &tsk->blocked, set);  in sigprocmask()
2965 		sigandnsets(&newset, &tsk->blocked, set);  in sigprocmask()
3000 	current->saved_sigmask = current->blocked;  in set_user_sigmask()
3020 	current->saved_sigmask = current->blocked;  in set_compat_user_sigmask()
3028  *  sys_rt_sigprocmask - change the list of currently blocked signals
3044 	old_set = current->blocked;  in SYSCALL_DEFINE4()
3068 	sigset_t old_set = current->blocked;  in COMPAT_SYSCALL_DEFINE4()
3097 	sigandsets(set, &current->blocked, set);  in do_sigpending()
3102  *			while blocked
3486 		tsk->real_blocked = tsk->blocked;  in do_sigtimedwait()
3487 		sigandsets(&tsk->blocked, &tsk->blocked, &mask);  in do_sigtimedwait()
3998 		 *   whether or not it is blocked."  in do_sigaction()
4003 		 *   be discarded, whether or not it is blocked"  in do_sigaction()
4195  *  sys_sigprocmask - examine and change blocked signals
4210 	old_set = current->blocked.sig[0];  in SYSCALL_DEFINE3()
4216 		new_blocked = current->blocked;  in SYSCALL_DEFINE3()
4409 	return current->blocked.sig[0];  in SYSCALL_DEFINE0()
4414 	int old = current->blocked.sig[0];  in SYSCALL_DEFINE1()
4458 	current->saved_sigmask = current->blocked;  in sigsuspend()
4506 	sigset_t blocked;  in SYSCALL_DEFINE1()  local
4507 	siginitset(&blocked, mask);  in SYSCALL_DEFINE1()
4508 	return sigsuspend(&blocked);  in SYSCALL_DEFINE1()
4514 	sigset_t blocked;  in SYSCALL_DEFINE3()  local
4515 	siginitset(&blocked, mask);  in SYSCALL_DEFINE3()
4516 	return sigsuspend(&blocked);  in SYSCALL_DEFINE3()