
static ssize_t bfq_low_latency_store(struct elevator_queue *e,
				     const char *page, size_t count)
{
	struct bfq_data *bfqd = e->elevator_data;
	unsigned long __data;
	int ret;

	ret = bfq_var_store(&__data, (page));
	if (ret)
		return ret;

	if (__data > 1)
		__data = 1;
	if (__data == 0 && bfqd->low_latency != 0)
		bfq_end_wr(bfqd);
	bfqd->low_latency = __data;

	return count;