87 	struct sighand_struct *sighand;  in __exit_signal()  local
91 	sighand = rcu_dereference_check(tsk->sighand,  in __exit_signal()
93 	spin_lock(&sighand->siglock);  in __exit_signal()
148 	tsk->sighand = NULL;  in __exit_signal()
149 	spin_unlock(&sighand->siglock);  in __exit_signal()
151 	__cleanup_sighand(sighand);  in __exit_signal()
864 		struct sighand_struct *const sighand = current->sighand;  in do_group_exit()  local
866 		spin_lock_irq(&sighand->siglock);  in do_group_exit()
875 		spin_unlock_irq(&sighand->siglock);  in do_group_exit()
1052 		spin_lock_irq(&current->sighand->siglock);  in wait_task_zombie()
1077 		spin_unlock_irq(&current->sighand->siglock);  in wait_task_zombie()
1180 	spin_lock_irq(&p->sighand->siglock);  in wait_task_stopped()
1195 	spin_unlock_irq(&p->sighand->siglock);  in wait_task_stopped()
1259 	spin_lock_irq(&p->sighand->siglock);  in wait_task_continued()
1262 		spin_unlock_irq(&p->sighand->siglock);  in wait_task_continued()
1268 	spin_unlock_irq(&p->sighand->siglock);  in wait_task_continued()