759 		struct mbuf *m0, *mtail;  in vn_sendfile()  local
1005 					m0 = mb_alloc_ext_pgs(M_WAITOK,  in vn_sendfile()
1009 						m0->m_ext.ext_flags |=  in vn_sendfile()
1020 							m0->m_ext.ext_flags |=  in vn_sendfile()
1024 						m0->m_ext.ext_flags |=  in vn_sendfile()
1026 						m0->m_ext.ext_arg1 = sfs;  in vn_sendfile()
1035 						mtail->m_next = m0;  in vn_sendfile()
1037 						m = m0;  in vn_sendfile()
1038 					mtail = m0;  in vn_sendfile()
1039 					m0->m_epg_1st_off =  in vn_sendfile()
1044 					m0->m_epg_nrdy++;  in vn_sendfile()
1047 				m0->m_epg_pa[ext_pgs_idx] = VM_PAGE_TO_PHYS(pga);  in vn_sendfile()
1048 				m0->m_epg_npgs++;  in vn_sendfile()
1050 				m0->m_epg_last_len = xfs;  in vn_sendfile()
1051 				MBUF_EXT_PGS_ASSERT_SANITY(m0);  in vn_sendfile()
1082 			m0 = m_get(M_WAITOK, MT_DATA);  in vn_sendfile()
1083 			m0->m_ext.ext_buf = (char *)sf_buf_kva(sf);  in vn_sendfile()
1084 			m0->m_ext.ext_size = PAGE_SIZE;  in vn_sendfile()
1085 			m0->m_ext.ext_arg1 = sf;  in vn_sendfile()
1086 			m0->m_ext.ext_type = EXT_SFBUF;  in vn_sendfile()
1087 			m0->m_ext.ext_flags = EXT_FLAG_EMBREF;  in vn_sendfile()
1088 			m0->m_ext.ext_free = sendfile_free_mext;  in vn_sendfile()
1100 				m0->m_ext.ext_flags |= EXT_FLAG_NOCACHE;  in vn_sendfile()
1102 				m0->m_ext.ext_flags |= EXT_FLAG_SYNC;  in vn_sendfile()
1103 				m0->m_ext.ext_arg2 = sfs;  in vn_sendfile()
1108 			m0->m_ext.ext_count = 1;  in vn_sendfile()
1109 			m0->m_flags |= (M_EXT | M_RDONLY);  in vn_sendfile()
1111 				m0->m_flags |= M_NOTREADY;  in vn_sendfile()
1112 			m0->m_data = (char *)sf_buf_kva(sf) +  in vn_sendfile()
1114 			m0->m_len = xfsize(i, npages, off, space);  in vn_sendfile()
1118 				mtail->m_next = m0;  in vn_sendfile()
1120 				m = m0;  in vn_sendfile()
1121 			mtail = m0;  in vn_sendfile()
1137 			m0 = mhtail->m_next = m;  in vn_sendfile()
1141 			m0 = m;  in vn_sendfile()
1186 			sfio->m = m0;  in vn_sendfile()