65 	return t->sighand->action[sig - 1].sa.sa_handler;  in sig_handler()
181 	spin_lock_irq(&current->sighand->siglock);  in calculate_sigpending()
184 	spin_unlock_irq(&current->sighand->siglock);  in calculate_sigpending()
459 	spin_lock_irqsave(&t->sighand->siglock, flags);  in flush_signals()
463 	spin_unlock_irqrestore(&t->sighand->siglock, flags);  in flush_signals()
495 	spin_lock_irqsave(&tsk->sighand->siglock, flags);  in flush_itimer_signals()
498 	spin_unlock_irqrestore(&tsk->sighand->siglock, flags);  in flush_itimer_signals()
507 		t->sighand->action[i].sa.sa_handler = SIG_IGN;  in ignore_signals()
520 	struct k_sigaction *ka = &t->sighand->action[0];  in flush_signal_handlers()
535 	void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler;  in unhandled_signal()
673 		spin_unlock(&tsk->sighand->siglock);  in dequeue_signal()
675 		spin_lock(&tsk->sighand->siglock);  in dequeue_signal()
818 	assert_spin_locked(&t->sighand->siglock);  in ptrace_trap_notify()
1034 	assert_spin_locked(&t->sighand->siglock);  in __send_signal()
1236 	spin_lock_irqsave(&t->sighand->siglock, flags);  in force_sig_info()
1237 	action = &t->sighand->action[sig-1];  in force_sig_info()
1254 	spin_unlock_irqrestore(&t->sighand->siglock, flags);  in force_sig_info()
1286 	struct sighand_struct *sighand;  in __lock_task_sighand()  local
1290 		sighand = rcu_dereference(tsk->sighand);  in __lock_task_sighand()
1291 		if (unlikely(sighand == NULL))  in __lock_task_sighand()
1305 		spin_lock_irqsave(&sighand->siglock, *flags);  in __lock_task_sighand()
1306 		if (likely(sighand == tsk->sighand))  in __lock_task_sighand()
1308 		spin_unlock_irqrestore(&sighand->siglock, *flags);  in __lock_task_sighand()
1312 	return sighand;  in __lock_task_sighand()
1520 		spin_lock_irqsave(&p->sighand->siglock, flags);  in force_sigsegv()
1521 		p->sighand->action[sig - 1].sa.sa_handler = SIG_DFL;  in force_sigsegv()
1522 		spin_unlock_irqrestore(&p->sighand->siglock, flags);  in force_sigsegv()
1686 	spinlock_t *lock = &current->sighand->siglock;  in sigqueue_free()
1822 	psig = tsk->parent->sighand;  in do_notify_parent()
1873 	struct sighand_struct *sighand;  in do_notify_parent_cldstop()  local
1913 	sighand = parent->sighand;  in do_notify_parent_cldstop()
1914 	spin_lock_irqsave(&sighand->siglock, flags);  in do_notify_parent_cldstop()
1915 	if (sighand->action[SIGCHLD-1].sa.sa_handler != SIG_IGN &&  in do_notify_parent_cldstop()
1916 	    !(sighand->action[SIGCHLD-1].sa.sa_flags & SA_NOCLDSTOP))  in do_notify_parent_cldstop()
1922 	spin_unlock_irqrestore(&sighand->siglock, flags);  in do_notify_parent_cldstop()
1971 	__releases(&current->sighand->siglock)  in ptrace_stop()
1972 	__acquires(&current->sighand->siglock)  in ptrace_stop()
1988 		spin_unlock_irq(&current->sighand->siglock);  in ptrace_stop()
1990 		spin_lock_irq(&current->sighand->siglock);  in ptrace_stop()
2038 	spin_unlock_irq(&current->sighand->siglock);  in ptrace_stop()
2091 	spin_lock_irq(&current->sighand->siglock);  in ptrace_stop()
2125 	spin_lock_irq(&current->sighand->siglock);  in ptrace_notify()
2127 	spin_unlock_irq(&current->sighand->siglock);  in ptrace_notify()
2153 	__releases(&current->sighand->siglock)  in do_signal_stop()
2224 		spin_unlock_irq(&current->sighand->siglock);  in do_signal_stop()
2338 	struct sighand_struct *sighand = current->sighand;  in get_signal()  local
2356 	spin_lock_irq(&sighand->siglock);  in get_signal()
2372 		spin_unlock_irq(&sighand->siglock);  in get_signal()
2402 			spin_unlock_irq(&sighand->siglock);  in get_signal()
2417 		ka = &sighand->action[signr-1];  in get_signal()
2466 				spin_unlock_irq(&sighand->siglock);  in get_signal()
2473 				spin_lock_irq(&sighand->siglock);  in get_signal()
2488 		spin_unlock_irq(&sighand->siglock);  in get_signal()
2516 	spin_unlock_irq(&sighand->siglock);  in get_signal()
2606 	spin_lock_irq(&tsk->sighand->siglock);  in exit_signals()
2626 	spin_unlock_irq(&tsk->sighand->siglock);  in exit_signals()
2701 	spin_lock_irq(&tsk->sighand->siglock);  in __set_current_blocked()
2703 	spin_unlock_irq(&tsk->sighand->siglock);  in __set_current_blocked()
2805 	spin_lock_irq(&current->sighand->siglock);  in do_sigpending()
2808 	spin_unlock_irq(&current->sighand->siglock);  in do_sigpending()
3105 	spin_lock_irq(&tsk->sighand->siglock);  in do_sigtimedwait()
3117 		spin_unlock_irq(&tsk->sighand->siglock);  in do_sigtimedwait()
3122 		spin_lock_irq(&tsk->sighand->siglock);  in do_sigtimedwait()
3127 	spin_unlock_irq(&tsk->sighand->siglock);  in do_sigtimedwait()
3396 	spin_lock_irq(&current->sighand->siglock);  in kernel_sigaction()
3397 	current->sighand->action[sig - 1].sa.sa_handler = action;  in kernel_sigaction()
3408 	spin_unlock_irq(&current->sighand->siglock);  in kernel_sigaction()
3426 	k = &p->sighand->action[sig-1];  in do_sigaction()
3428 	spin_lock_irq(&p->sighand->siglock);  in do_sigaction()
3458 	spin_unlock_irq(&p->sighand->siglock);  in do_sigaction()
3987 	if (!spin_trylock(&t->sighand->siglock)) {  in kdb_send_sig()
3996 		spin_unlock(&t->sighand->siglock);  in kdb_send_sig()
4006 	spin_unlock(&t->sighand->siglock);  in kdb_send_sig()