static void binder_wakeup_thread_ilocked(struct binder_proc *proc,
					 struct binder_thread *thread,
					 bool sync)
{
	assert_spin_locked(&proc->inner_lock);

	if (thread) {
		if (sync)
			wake_up_interruptible_sync(&thread->wait);
		else
			wake_up_interruptible(&thread->wait);
		return;
	}

	/* Didn't find a thread waiting for proc work; this can happen
	 * in two scenarios:
	 * 1. All threads are busy handling transactions
	 *    In that case, one of those threads should call back into
	 *    the kernel driver soon and pick up this work.
	 * 2. Threads are using the (e)poll interface, in which case
	 *    they may be blocked on the waitqueue without having been
	 *    added to waiting_threads. For this case, we just iterate
	 *    over all threads not handling transaction work, and
	 *    wake them all up. We wake all because we don't know whether
	 *    a thread that called into (e)poll is handling non-binder
	 *    work currently.
	 */
	binder_wakeup_poll_threads_ilocked(proc, sync);
}
Unknown