ksm_get_folio
folio = ksm_get_folio(stable_node, KSM_GET_FOLIO_LOCK);
folio = ksm_get_folio(stable_node, KSM_GET_FOLIO_LOCK);
folio = ksm_get_folio(dup, KSM_GET_FOLIO_NOLOCK);
return ksm_get_folio(stable_node, KSM_GET_FOLIO_NOLOCK);
tree_folio = ksm_get_folio(stable_node_dup,
folio = ksm_get_folio(stable_node,