/* pdcs_size_read - Stable Storage size output. @buf: The output buffer to write to.  */
static ssize_t pdcs_size_read(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
/* pdcs_size_read - Stable Storage size output. @buf: The output buffer to write to.  */
static ssize_t pdcs_size_read(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	char *out = buf;
	if (!buf)
		return -EINVAL;
	out += sprintf(out, "%ld\n", pdcs_size);
	return out - buf;
}