ch_unbind_dvma_handle
void ch_unbind_dvma_handle(ch_t *, free_dh_t *);
ch_unbind_dvma_handle(sa, cmp->ce_dh);
ch_unbind_dvma_handle(sge->obj, ce->ce_dh);
ch_unbind_dvma_handle(sge->obj, ce->ce_dh);