504 		clust = m->m_ext.ext_buf;  in dn_pack_release()
699 	KASSERT(m->m_ext.ext_buf != NULL, ("%s: ext_buf == NULL", __func__));  in mb_dtor_pack()
700 	KASSERT(m->m_ext.ext_free == NULL, ("%s: ext_free != NULL", __func__));  in mb_dtor_pack()
701 	KASSERT(m->m_ext.ext_arg1 == NULL, ("%s: ext_arg1 != NULL", __func__));  in mb_dtor_pack()
702 	KASSERT(m->m_ext.ext_arg2 == NULL, ("%s: ext_arg2 != NULL", __func__));  in mb_dtor_pack()
703 	KASSERT(m->m_ext.ext_size == MCLBYTES, ("%s: ext_size != MCLBYTES", __func__));  in mb_dtor_pack()
704 	KASSERT(m->m_ext.ext_type == EXT_PACKET, ("%s: ext_type != EXT_PACKET", __func__));  in mb_dtor_pack()
706 	trash_dtor(m->m_ext.ext_buf, MCLBYTES, zone_clust);  in mb_dtor_pack()
735 		m->m_ext.ext_buf = (char *)mem;  in mb_ctor_clust()
736 		m->m_data = m->m_ext.ext_buf;  in mb_ctor_clust()
738 		m->m_ext.ext_free = NULL;  in mb_ctor_clust()
739 		m->m_ext.ext_arg1 = NULL;  in mb_ctor_clust()
740 		m->m_ext.ext_arg2 = NULL;  in mb_ctor_clust()
741 		m->m_ext.ext_size = size;  in mb_ctor_clust()
742 		m->m_ext.ext_type = m_gettype(size);  in mb_ctor_clust()
743 		m->m_ext.ext_flags = EXT_FLAG_EMBREF;  in mb_ctor_clust()
744 		m->m_ext.ext_count = 1;  in mb_ctor_clust()
761 	    m->m_ext.ext_buf == NULL)  in mb_zinit_pack()
763 	m->m_ext.ext_type = EXT_PACKET;	/* Override. */  in mb_zinit_pack()
765 	trash_init(m->m_ext.ext_buf, MCLBYTES, how);  in mb_zinit_pack()
781 	trash_fini(m->m_ext.ext_buf, MCLBYTES);  in mb_zfini_pack()
783 	uma_zfree_arg(zone_clust, m->m_ext.ext_buf, NULL);  in mb_zfini_pack()
807 	trash_ctor(m->m_ext.ext_buf, MCLBYTES, zone_clust, how);  in mb_ctor_pack()
813 	m->m_data = m->m_ext.ext_buf;  in mb_ctor_pack()
873 	if (m->m_ext.ext_flags & EXT_FLAG_EMBREF) {  in mb_unmapped_compress()
874 		refcnt = &m->m_ext.ext_count;  in mb_unmapped_compress()
876 		KASSERT(m->m_ext.ext_cnt != NULL,  in mb_unmapped_compress()
878 		refcnt = m->m_ext.ext_cnt;  in mb_unmapped_compress()
887 	m->m_ext.ext_free(m);  in mb_unmapped_compress()
931 	sf = m->m_ext.ext_arg1;  in mb_unmapped_free_mext()
935 	old_m = m->m_ext.ext_arg2;  in mb_unmapped_free_mext()
961 	if (m->m_ext.ext_flags & EXT_FLAG_EMBREF) {  in _mb_unmapped_to_ext()
962 		refcnt = &m->m_ext.ext_count;  in _mb_unmapped_to_ext()
965 		KASSERT(m->m_ext.ext_cnt != NULL,  in _mb_unmapped_to_ext()
967 		refcnt = m->m_ext.ext_cnt;  in _mb_unmapped_to_ext()
968 		mref = __containerof(refcnt, struct mbuf, m_ext.ext_count);  in _mb_unmapped_to_ext()
1155 	m->m_ext.ext_flags = EXT_FLAG_EMBREF;  in mb_alloc_ext_pgs()
1156 	m->m_ext.ext_count = 1;  in mb_alloc_ext_pgs()
1157 	m->m_ext.ext_size = 0;  in mb_alloc_ext_pgs()
1158 	m->m_ext.ext_free = ext_free;  in mb_alloc_ext_pgs()
1176 	if (m->m_ext.ext_flags & EXT_FLAG_EMBREF) {  in mb_free_ext()
1177 		refcnt = &m->m_ext.ext_count;  in mb_free_ext()
1180 		KASSERT(m->m_ext.ext_cnt != NULL,  in mb_free_ext()
1182 		refcnt = m->m_ext.ext_cnt;  in mb_free_ext()
1183 		mref = __containerof(refcnt, struct mbuf, m_ext.ext_count);  in mb_free_ext()
1196 		KASSERT(m->m_ext.ext_type == EXT_EXTREF ||  in mb_free_ext()
1197 		    m->m_ext.ext_type == EXT_RXRING,  in mb_free_ext()
1204 		switch (m->m_ext.ext_type) {  in mb_free_ext()
1212 			uma_zfree(zone_clust, m->m_ext.ext_buf);  in mb_free_ext()
1216 			uma_zfree(zone_jumbop, m->m_ext.ext_buf);  in mb_free_ext()
1220 			uma_zfree(zone_jumbo9, m->m_ext.ext_buf);  in mb_free_ext()
1224 			uma_zfree(zone_jumbo16, m->m_ext.ext_buf);  in mb_free_ext()
1232 			KASSERT(mref->m_ext.ext_free != NULL,  in mb_free_ext()
1234 			mref->m_ext.ext_free(mref);  in mb_free_ext()
1238 			KASSERT(m->m_ext.ext_free != NULL,  in mb_free_ext()
1240 			m->m_ext.ext_free(m);  in mb_free_ext()
1243 			KASSERT(m->m_ext.ext_free == NULL,  in mb_free_ext()
1247 			KASSERT(m->m_ext.ext_type == 0,  in mb_free_ext()
1269 	if (m->m_ext.ext_flags & EXT_FLAG_EMBREF) {  in mb_free_extpg()
1270 		refcnt = &m->m_ext.ext_count;  in mb_free_extpg()
1273 		KASSERT(m->m_ext.ext_cnt != NULL,  in mb_free_extpg()
1275 		refcnt = m->m_ext.ext_cnt;  in mb_free_extpg()
1276 		mref = __containerof(refcnt, struct mbuf, m_ext.ext_count);  in mb_free_extpg()
1281 		KASSERT(mref->m_ext.ext_free != NULL,  in mb_free_extpg()
1284 		mref->m_ext.ext_free(mref);  in mb_free_extpg()
1320 	m->m_ext.ext_buf = (char *)NULL;  in m_clget()
1326 	if ((how & M_NOWAIT) && (m->m_ext.ext_buf == NULL)) {  in m_clget()
1350 		m->m_ext.ext_buf = NULL;  in m_cljget()
1580 	mb->m_ext.ext_buf = buf;  in m_extadd()
1581 	mb->m_data = mb->m_ext.ext_buf;  in m_extadd()
1582 	mb->m_ext.ext_size = size;  in m_extadd()
1583 	mb->m_ext.ext_free = freef;  in m_extadd()
1584 	mb->m_ext.ext_arg1 = arg1;  in m_extadd()
1585 	mb->m_ext.ext_arg2 = arg2;  in m_extadd()
1586 	mb->m_ext.ext_type = type;  in m_extadd()
1589 		mb->m_ext.ext_count = 1;  in m_extadd()
1590 		mb->m_ext.ext_flags = EXT_FLAG_EMBREF;  in m_extadd()
1592 		mb->m_ext.ext_flags = 0;  in m_extadd()