Use the node name of the storage access driver to identify the block job
volumes. This will prepare the blockjob code for the possibility that the
format layer may be missing. Our lookup code can find either of them,
thus we can safely switch.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
