155 	else if (!recalc_sigpending_tsk(current) && !freezing(current))  in recalc_sigpending()
223 				current->comm, current->pid, sig);  in print_dropped_signal()
331 	struct task_struct *tsk = current;  in flush_itimer_signals()
392 	spin_lock_irqsave(&current->sighand->siglock, flags);  in block_all_signals()
393 	current->notifier_mask = mask;  in block_all_signals()
394 	current->notifier_data = priv;  in block_all_signals()
395 	current->notifier = notifier;  in block_all_signals()
396 	spin_unlock_irqrestore(&current->sighand->siglock, flags);  in block_all_signals()
406 	spin_lock_irqsave(&current->sighand->siglock, flags);  in unblock_all_signals()
407 	current->notifier = NULL;  in unblock_all_signals()
408 	current->notifier_data = NULL;  in unblock_all_signals()
410 	spin_unlock_irqrestore(&current->sighand->siglock, flags);  in unblock_all_signals()
456 		if (current->notifier) {  in __dequeue_signal()
457 			if (sigismember(current->notifier_mask, sig)) {  in __dequeue_signal()
458 				if (!(current->notifier)(current->notifier_data)) {  in __dequeue_signal()
680 	if (!same_thread_group(current, t) &&  in check_kill_permission()
689 			if (!sid || sid == task_session(current))  in check_kill_permission()
950 			q->info.si_pid = task_tgid_nr_ns(current,  in __send_signal()
999 			   !task_pid_nr_ns(current, task_active_pid_ns(t));  in send_signal()
1008 		current->comm, task_pid_nr(current), signr);  in print_fatal_signal()
1278 				pid ? find_vpid(-pid) : task_pgrp(current));  in kill_something_info()
1285 					!same_thread_group(p, current)) {  in kill_something_info()
1378 	struct sigqueue *q = __sigqueue_alloc(-1, current, GFP_KERNEL, 0);  in sigqueue_alloc()
1389 	spinlock_t *lock = &current->sighand->siglock;  in sigqueue_free()
1595 	if (!likely(task_ptrace(current)))  in may_ptrace_stop()
1606 	if (unlikely(current->mm->core_state) &&  in may_ptrace_stop()
1607 	    unlikely(current->mm == current->parent->mm))  in may_ptrace_stop()
1635 	__releases(&current->sighand->siglock)  in ptrace_stop()
1636 	__acquires(&current->sighand->siglock)  in ptrace_stop()
1650 		spin_unlock_irq(&current->sighand->siglock);  in ptrace_stop()
1652 		spin_lock_irq(&current->sighand->siglock);  in ptrace_stop()
1653 		if (sigkill_pending(current))  in ptrace_stop()
1661 	if (current->signal->group_stop_count > 0)  in ptrace_stop()
1662 		--current->signal->group_stop_count;  in ptrace_stop()
1664 	current->last_siginfo = info;  in ptrace_stop()
1665 	current->exit_code = exit_code;  in ptrace_stop()
1669 	spin_unlock_irq(&current->sighand->siglock);  in ptrace_stop()
1672 		do_notify_parent_cldstop(current, CLD_TRAPPED);  in ptrace_stop()
1690 			current->exit_code = 0;  in ptrace_stop()
1706 	spin_lock_irq(&current->sighand->siglock);  in ptrace_stop()
1707 	current->last_siginfo = NULL;  in ptrace_stop()
1714 	recalc_sigpending_tsk(current);  in ptrace_stop()
1726 	info.si_pid = task_pid_vnr(current);  in ptrace_notify()
1730 	spin_lock_irq(&current->sighand->siglock);  in ptrace_notify()
1732 	spin_unlock_irq(&current->sighand->siglock);  in ptrace_notify()
1743 	struct signal_struct *sig = current->signal;  in do_signal_stop()
1759 		for (t = next_thread(current); t != current; t = next_thread(t))  in do_signal_stop()
1786 		current->exit_code = sig->group_exit_code;  in do_signal_stop()
1789 	spin_unlock_irq(&current->sighand->siglock);  in do_signal_stop()
1793 		do_notify_parent_cldstop(current, notify);  in do_signal_stop()
1803 	current->exit_code = 0;  in do_signal_stop()
1811 	if (!task_ptrace(current))  in ptrace_signal()
1820 	signr = current->exit_code;  in ptrace_signal()
1824 	current->exit_code = 0;  in ptrace_signal()
1836 		info->si_pid = task_pid_vnr(current->parent);  in ptrace_signal()
1837 		info->si_uid = task_uid(current->parent);  in ptrace_signal()
1841 	if (sigismember(&current->blocked, signr)) {  in ptrace_signal()
1842 		specific_send_sig_info(signr, info, current);  in ptrace_signal()
1852 	struct sighand_struct *sighand = current->sighand;  in get_signal_to_deliver()
1853 	struct signal_struct *signal = current->signal;  in get_signal_to_deliver()
1881 			do_notify_parent_cldstop(current->group_leader, why);  in get_signal_to_deliver()
1894 		signr = tracehook_get_signal(current, regs, info, return_ka);  in get_signal_to_deliver()
1904 			signr = dequeue_signal(current, &current->blocked,  in get_signal_to_deliver()
1994 		current->flags |= PF_SIGNALED;  in get_signal_to_deliver()
2110 	spin_lock_irq(&current->sighand->siglock);  in sigprocmask()
2112 		*oldset = current->blocked;  in sigprocmask()
2117 		sigorsets(&current->blocked, &current->blocked, set);  in sigprocmask()
2120 		signandsets(&current->blocked, &current->blocked, set);  in sigprocmask()
2123 		current->blocked = *set;  in sigprocmask()
2129 	spin_unlock_irq(&current->sighand->siglock);  in sigprocmask()
2163 		spin_lock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE4()
2164 		old_set = current->blocked;  in SYSCALL_DEFINE4()
2165 		spin_unlock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE4()
2185 	spin_lock_irq(&current->sighand->siglock);  in do_sigpending()
2186 	sigorsets(&pending, &current->pending.signal,  in do_sigpending()
2187 		  &current->signal->shared_pending.signal);  in do_sigpending()
2188 	spin_unlock_irq(&current->sighand->siglock);  in do_sigpending()
2191 	sigandsets(&pending, &current->blocked, &pending);  in do_sigpending()
2326 	spin_lock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE4()
2327 	sig = dequeue_signal(current, &these, &info);  in SYSCALL_DEFINE4()
2340 			current->real_blocked = current->blocked;  in SYSCALL_DEFINE4()
2341 			sigandsets(&current->blocked, &current->blocked, &these);  in SYSCALL_DEFINE4()
2343 			spin_unlock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE4()
2347 			spin_lock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE4()
2348 			sig = dequeue_signal(current, &these, &info);  in SYSCALL_DEFINE4()
2349 			current->blocked = current->real_blocked;  in SYSCALL_DEFINE4()
2350 			siginitset(&current->real_blocked, 0);  in SYSCALL_DEFINE4()
2354 	spin_unlock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE4()
2383 	info.si_pid = task_tgid_vnr(current);  in SYSCALL_DEFINE2()
2426 	info.si_pid = task_tgid_vnr(current);  in do_tkill()
2527 	struct task_struct *t = current;  in do_sigaction()
2536 	spin_lock_irq(&current->sighand->siglock);  in do_sigaction()
2562 			} while (t != current);  in do_sigaction()
2566 	spin_unlock_irq(&current->sighand->siglock);  in do_sigaction()
2576 	oss.ss_sp = (void __user *) current->sas_ss_sp;  in do_sigaltstack()
2577 	oss.ss_size = current->sas_ss_size;  in do_sigaltstack()
2618 		current->sas_ss_sp = (unsigned long) ss_sp;  in do_sigaltstack()
2619 		current->sas_ss_size = ss_size;  in do_sigaltstack()
2672 		spin_lock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE3()
2673 		old_set = current->blocked.sig[0];  in SYSCALL_DEFINE3()
2681 			sigaddsetmask(&current->blocked, new_set);  in SYSCALL_DEFINE3()
2684 			sigdelsetmask(&current->blocked, new_set);  in SYSCALL_DEFINE3()
2687 			current->blocked.sig[0] = new_set;  in SYSCALL_DEFINE3()
2692 		spin_unlock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE3()
2698 		old_set = current->blocked.sig[0];  in SYSCALL_DEFINE3()
2754 	return current->blocked.sig[0];  in SYSCALL_DEFINE0()
2761 	spin_lock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE1()
2762 	old = current->blocked.sig[0];  in SYSCALL_DEFINE1()
2764 	siginitset(&current->blocked, newmask & ~(sigmask(SIGKILL)|  in SYSCALL_DEFINE1()
2767 	spin_unlock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE1()
2796 	current->state = TASK_INTERRUPTIBLE;  in SYSCALL_DEFINE0()
2822 	spin_lock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE2()
2823 	current->saved_sigmask = current->blocked;  in SYSCALL_DEFINE2()
2824 	current->blocked = newset;  in SYSCALL_DEFINE2()
2826 	spin_unlock_irq(&current->sighand->siglock);  in SYSCALL_DEFINE2()
2828 	current->state = TASK_INTERRUPTIBLE;  in SYSCALL_DEFINE2()