147 	struct sighand_struct *sighand;  in __exit_signal()  local
151 	sighand = rcu_dereference_check(tsk->sighand,  in __exit_signal()
153 	spin_lock(&sighand->siglock);  in __exit_signal()
207 	tsk->sighand = NULL;  in __exit_signal()
208 	spin_unlock(&sighand->siglock);  in __exit_signal()
210 	__cleanup_sighand(sighand);  in __exit_signal()
410 	spin_lock_irq(&tsk->sighand->siglock);  in coredump_task_exit()
413 	spin_unlock_irq(&tsk->sighand->siglock);  in coredump_task_exit()
795 	struct sighand_struct *sighand = tsk->sighand;  in synchronize_group_exit()  local
798 	spin_lock_irq(&sighand->siglock);  in synchronize_group_exit()
806 	spin_unlock_irq(&sighand->siglock);  in synchronize_group_exit()
1005 		struct sighand_struct *const sighand = current->sighand;  in do_group_exit()  local
1007 		spin_lock_irq(&sighand->siglock);  in do_group_exit()
1018 		spin_unlock_irq(&sighand->siglock);  in do_group_exit()
1160 		spin_lock_irq(&current->sighand->siglock);  in wait_task_zombie()
1185 		spin_unlock_irq(&current->sighand->siglock);  in wait_task_zombie()
1274 	spin_lock_irq(&p->sighand->siglock);  in wait_task_stopped()
1289 	spin_unlock_irq(&p->sighand->siglock);  in wait_task_stopped()
1340 	spin_lock_irq(&p->sighand->siglock);  in wait_task_continued()
1343 		spin_unlock_irq(&p->sighand->siglock);  in wait_task_continued()
1349 	spin_unlock_irq(&p->sighand->siglock);  in wait_task_continued()