2.6.12*) LDISKFS_SERIES="2.6.12-vanilla.series" ;;
2.6.15*) LDISKFS_SERIES="2.6-fc5.series";;
2.6.16*) LDISKFS_SERIES="2.6-sles10.series";;
+2.6.18-*el5*) LDISKFS_SERIES="2.6-rhel5.series";;
2.6.18*) LDISKFS_SERIES="2.6.18-vanilla.series";;
*) AC_MSG_WARN([Unknown kernel version $LINUXRELEASE, fix ldiskfs/configure.ac])
esac