hammer_uuid_compare
if (hammer_uuid_compare(&didpfs->uuid,
if (hammer_uuid_compare(&mrec->pfs.pfsd.shared_uuid, &pfsd.shared_uuid)) {
int hammer_uuid_compare(const hammer_uuid_t *uuid1, const hammer_uuid_t *uuid2);
if (hammer_uuid_compare(&Hammer_FSType, &ondisk->vol_fstype)) {
if (hammer_uuid_compare(&Hammer_FSId, &ondisk->vol_fsid)) {