b=16893

[fs/lustre-release.git] / ldiskfs / configure.ac

diff --git a/ldiskfs/configure.ac b/ldiskfs/configure.ac
index e7b19c1..1102b81 100644 (file)
--- a/ldiskfs/configure.ac
+++ b/ldiskfs/configure.ac
@@ -1,6 +1,6 @@
 # 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 ..
@@ -33,6 +33,13 @@ $2
 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],
@@ -83,6 +90,34 @@ AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
 
 LB_DEFINE_LDISKFS_OPTIONS
 
+AC_MSG_CHECKING([whether to build ldisk based on ext4])
+AC_ARG_ENABLE([ext4],
+             AC_HELP_STRING([--disable-ext4],
+                            [enable building of ldiskfs based on ext4]),[],
+                            [LC_KERNEL_WITH_EXT4([enable_ext4='yes'],
+                            [enable_ext4='no'])])
+AC_MSG_RESULT([$enable_ext4])
+
+# Remove this part when RHEL5 ext4 patches landed.
+case $LINUXRELEASE in
+2.6.18*) if test x$RHEL_KENEL = xyes; then
+        enable_ext4=no
+        fi
+;;
+esac
+
+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" ;;
@@ -94,12 +129,17 @@ case $LINUXRELEASE in
 2.6.16*) LDISKFS_SERIES="2.6-sles10.series";;
 2.6.18*)
        if test x$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])