static ssize_t wq_cpumask_show(struct device *dev,
			       struct device_attribute *attr, char *buf)
{
	struct workqueue_struct *wq = dev_to_wq(dev);
	int written;

	mutex_lock(&wq->mutex);
	written = scnprintf(buf, PAGE_SIZE, "%*pb\n",
			    cpumask_pr_args(wq->unbound_attrs->cpumask));
	mutex_unlock(&wq->mutex);
	return written;
}
Unknown