# Process this file with autoconf to produce a configure script.
-AC_INIT([Lustre ldiskfs], 3.0.8, [https://bugzilla.lustre.org/])
+AC_INIT([Lustre ldiskfs], 3.0.9, [https://bugzilla.lustre.org/])
AC_CONFIG_SRCDIR([lustre-ldiskfs.spec.in])
# Don't look for install-sh, etc. in ..
esac
])
+AC_DEFUN([LC_KERNEL_WITH_EXT4],
+[if test -f $LINUX/fs/ext4/ext4.h ; then
+$1
+else
+$2
+fi
+])
AC_MSG_CHECKING([whether to build kernel modules])
AC_ARG_ENABLE([modules],
LB_DEFINE_LDISKFS_OPTIONS
+AC_MSG_CHECKING([whether to build ldiskfs based on ext4])
+if test x$RHEL_KERNEL = xyes; then
+ AC_ARG_ENABLE([ext4],
+ AC_HELP_STRING([--enable-ext4],
+ [enable building of ldiskfs based on ext4]),
+ [], [enable_ext4='no'])
+else
+ case $LINUXRELEASE in
+ # ext4 was in 2.6.22-2.6.26 but not stable enough to use
+ 2.6.2[0-6]*) enable_ext4='no' ;;
+ *) LC_KERNEL_WITH_EXT4([enable_ext4='yes'],
+ [enable_ext4='no']) ;;
+ esac
+fi
+AC_MSG_RESULT([$enable_ext4])
+
+if test x$enable_ext4 = xyes ; then
+ AC_DEFINE(HAVE_EXT4_LDISKFS, 1, [ldiskfs based on ext4])
+ BACKFS=ext4
+else
+ BACKFS=ext3
+fi
+
+AC_SUBST(BACKFS)
+BACKFSU=${BACKFS/ext/EXT}
+AC_SUBST(BACKFSU) # We need a Upper string
+
+AM_CONDITIONAL(USE_EXT4, test x$enable_ext4 = xyes)
+
AC_MSG_CHECKING([which ldiskfs series to use])
case $LINUXRELEASE in
2.6.5*) LDISKFS_SERIES="2.6-suse.series" ;;
2.6.16*) LDISKFS_SERIES="2.6-sles10.series";;
2.6.18*)
if test x$RHEL_KENEL = xyes; then
- LDISKFS_SERIES="2.6-rhel5.series"
+ if test x$enable_ext4 = xyes; then
+ LDISKFS_SERIES="2.6-rhel5-ext4.series"
+ else
+ LDISKFS_SERIES="2.6-rhel5.series"
+ fi
else
LDISKFS_SERIES="2.6.18-vanilla.series"
fi
;;
2.6.22*) LDISKFS_SERIES="2.6.22-vanilla.series";;
+2.6.27*) LDISKFS_SERIES="2.6-sles11.series";;
*) AC_MSG_WARN([Unknown kernel version $LINUXRELEASE, fix ldiskfs/configure.ac])
esac
AC_MSG_RESULT([$LDISKFS_SERIES])