99 	struct sighand_struct *sighand;  in __exit_signal()  local
103 	sighand = rcu_dereference_check(tsk->sighand,  in __exit_signal()
105 	spin_lock(&sighand->siglock);  in __exit_signal()
159 	tsk->sighand = NULL;  in __exit_signal()
160 	spin_unlock(&sighand->siglock);  in __exit_signal()
162 	__cleanup_sighand(sighand);  in __exit_signal()
362 	spin_lock_irq(&tsk->sighand->siglock);  in coredump_task_exit()
365 	spin_unlock_irq(&tsk->sighand->siglock);  in coredump_task_exit()
744 	struct sighand_struct *sighand = tsk->sighand;  in synchronize_group_exit()  local
747 	spin_lock_irq(&sighand->siglock);  in synchronize_group_exit()
755 	spin_unlock_irq(&sighand->siglock);  in synchronize_group_exit()
934 		struct sighand_struct *const sighand = current->sighand;  in do_group_exit()  local
936 		spin_lock_irq(&sighand->siglock);  in do_group_exit()
947 		spin_unlock_irq(&sighand->siglock);  in do_group_exit()
1089 		spin_lock_irq(&current->sighand->siglock);  in wait_task_zombie()
1114 		spin_unlock_irq(&current->sighand->siglock);  in wait_task_zombie()
1203 	spin_lock_irq(&p->sighand->siglock);  in wait_task_stopped()
1218 	spin_unlock_irq(&p->sighand->siglock);  in wait_task_stopped()
1269 	spin_lock_irq(&p->sighand->siglock);  in wait_task_continued()
1272 		spin_unlock_irq(&p->sighand->siglock);  in wait_task_continued()
1278 	spin_unlock_irq(&p->sighand->siglock);  in wait_task_continued()