kernel/locking/rtmutex_api.c

163  * @wqh:	The wake queue head from which to get the next lock waiter
276  * @waiter:		the pre-initialized rt_mutex_waiter
279  * Starts the rt_mutex acquire; it enqueues the @waiter and does deadlock
282  * NOTE: does _NOT_ remove the @waiter on failure; must either call
293 					struct rt_mutex_waiter *waiter,
304 	ret = task_blocks_on_rt_mutex(lock, waiter, task, NULL,
312 		 * pi chain.  Let the waiter sort it out.
323  * @waiter:		the pre-initialized rt_mutex_waiter
326  * Starts the rt_mutex acquire; it enqueues the @waiter and does deadlock
329  * NOTE: unlike __rt_mutex_start_proxy_lock this _DOES_ remove the @waiter
340 				      struct rt_mutex_waiter *waiter,
346 	ret = __rt_mutex_start_proxy_lock(lock, waiter, task);
348 		remove_waiter(lock, waiter);
359  * @waiter:		the pre-initialized rt_mutex_waiter
373 				     struct rt_mutex_waiter *waiter)
380 	ret = rt_mutex_slowlock_block(lock, NULL, TASK_INTERRUPTIBLE, to, waiter);
382 	 * try_to_take_rt_mutex() sets the waiter bit unconditionally. We might
394  * @waiter:		the pre-initialized rt_mutex_waiter
412 					 struct rt_mutex_waiter *waiter)
424 	 * we will own the lock and it will have removed the waiter. If we
428 	try_to_take_rt_mutex(lock, current, waiter);
434 		remove_waiter(lock, waiter);
438 	 * try_to_take_rt_mutex() sets the waiter bit unconditionally. We might
455 	struct rt_mutex_waiter *waiter;
461 	waiter = task->pi_blocked_on;
462 	if (!waiter || rt_waiter_node_equal(&waiter->tree, task_to_waiter_node(task))) {
466 	next_lock = waiter->lock;
477  * Performs the wakeup of the top-waiter and re-enables preemption.