return cio_start_key(sch, cpa, lpm, default_storage_key);
return cio_start_key(sch, cpa, lpm, PAGE_DEFAULT_KEY);
cio_start (struct subchannel *sch, struct ccw1 *cpa, __u8 lpm){	return cio_start_key(sch, cpa, lpm, default_storage_key);}