Symbol: dasd_devmap_set_copy_relation
drivers/s390/block/dasd_devmap.c
2282
rc = dasd_devmap_set_copy_relation(prim_devmap, copy, prim_busid, true);
drivers/s390/block/dasd_devmap.c
2287
rc = dasd_devmap_set_copy_relation(sec_devmap, copy, sec_busid, false);