EXT_CLUSTER
type = EXT_CLUSTER;
case EXT_CLUSTER:
KASSERT(type != EXT_CLUSTER, ("%s: EXT_CLUSTER not allowed", __func__));
(n->m_ext.ext_type == EXT_CLUSTER && M_WRITABLE(n)))
memoryBuffer->m_ext.ext_type = EXT_CLUSTER;
if (memoryBuffer->m_ext.ext_type == EXT_CLUSTER)
extType = EXT_CLUSTER;