95 	struct sighand_struct *sighand;  in __exit_signal()  local
99 	sighand = rcu_dereference_check(tsk->sighand,  in __exit_signal()
101 	spin_lock(&sighand->siglock);  in __exit_signal()
164 	tsk->sighand = NULL;  in __exit_signal()
165 	spin_unlock(&sighand->siglock);  in __exit_signal()
167 	__cleanup_sighand(sighand);  in __exit_signal()
236 	struct sighand_struct *sighand;  in task_rcu_dereference()  local
250 	probe_kernel_address(&task->sighand, sighand);  in task_rcu_dereference()
287 	if (!sighand)  in task_rcu_dereference()
956 		struct sighand_struct *const sighand = current->sighand;  in do_group_exit()  local
958 		spin_lock_irq(&sighand->siglock);  in do_group_exit()
967 		spin_unlock_irq(&sighand->siglock);  in do_group_exit()
1108 		spin_lock_irq(&current->sighand->siglock);  in wait_task_zombie()
1133 		spin_unlock_irq(&current->sighand->siglock);  in wait_task_zombie()
1222 	spin_lock_irq(&p->sighand->siglock);  in wait_task_stopped()
1237 	spin_unlock_irq(&p->sighand->siglock);  in wait_task_stopped()
1288 	spin_lock_irq(&p->sighand->siglock);  in wait_task_continued()
1291 		spin_unlock_irq(&p->sighand->siglock);  in wait_task_continued()
1297 	spin_unlock_irq(&p->sighand->siglock);  in wait_task_continued()