1135  * @exiting:	Pointer to the exiting task
1137  * Caller must hold a refcount on @exiting.
1139 static void wait_for_owner_exiting(int ret, struct task_struct *exiting)  in wait_for_owner_exiting()  argument
1142 		WARN_ON_ONCE(exiting);  in wait_for_owner_exiting()
1146 	if (WARN_ON_ONCE(ret == -EBUSY && !exiting))  in wait_for_owner_exiting()
1149 	mutex_lock(&exiting->futex_exit_mutex);  in wait_for_owner_exiting()
1154 	 * mutex. OK, if running, EXITING or DEAD if it reached exit()  in wait_for_owner_exiting()
1158 	mutex_unlock(&exiting->futex_exit_mutex);  in wait_for_owner_exiting()
1160 	put_task_struct(exiting);  in wait_for_owner_exiting()
1199 	 * user space value has been changed by the exiting task.  in handle_exit_race()
1201 	 * The same logic applies to the case where the exiting task is  in handle_exit_race()
1212 	 * The exiting task did not have a robust list, the robust list was  in handle_exit_race()
1225 			      struct task_struct **exiting)  in attach_to_pi_owner()  argument
1251 	 * task is exiting. To protect against the change of the task state  in attach_to_pi_owner()
1271 		 * preempted the exiting task between the two states.  in attach_to_pi_owner()
1274 			*exiting = p;  in attach_to_pi_owner()
1316 			   struct task_struct **exiting)  in lookup_pi_state()  argument
1331 	return attach_to_pi_owner(uaddr, uval, key, ps, exiting);  in lookup_pi_state()
1359  * @exiting:		Pointer to store the task pointer of the owner task
1360  *			which is in the middle of exiting
1370  * @exiting is only set when the return value is -EBUSY. If so, this holds
1371  * a refcount on the exiting task on return and the caller needs to drop it
1378 				struct task_struct **exiting,  in futex_lock_pi_atomic()  argument
1449 	return attach_to_pi_owner(uaddr, newval, key, ps, exiting);  in futex_lock_pi_atomic()
1845  * @exiting:		Pointer to store the task pointer of the owner task
1846  *			which is in the middle of exiting
1854  * @exiting is only set when the return value is -EBUSY. If so, this holds
1855  * a refcount on the exiting task on return and the caller needs to drop it
1867 			   struct task_struct **exiting, int set_waiters)  in futex_proxy_trylock_atomic()  argument
1904 				   exiting, set_waiters);  in futex_proxy_trylock_atomic()
2029 		struct task_struct *exiting = NULL;  in futex_requeue()  local
2039 						 &exiting, nr_requeue);  in futex_requeue()
2066 					      &pi_state, &exiting);  in futex_requeue()
2086 			 * - EBUSY: Owner is exiting and we just wait for the  in futex_requeue()
2094 			 * exiting. Wait for the exit to complete otherwise  in futex_requeue()
2097 			wait_for_owner_exiting(ret, exiting);  in futex_requeue()
2788 	struct task_struct *exiting = NULL;  in futex_lock_pi()  local
2811 				   &exiting, 0);  in futex_lock_pi()
2828 			 * - EBUSY: Task is exiting and we just wait for the  in futex_lock_pi()
2835 			 * exiting. Wait for the exit to complete otherwise  in futex_lock_pi()
2838 			wait_for_owner_exiting(ret, exiting);  in futex_lock_pi()
3638  * observes that state when a task is exiting and loops until the task has