b=17569 add check in ext3-based ldiskfs for >8TB filesystems

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

diff --git a/ldiskfs/configure.ac b/ldiskfs/configure.ac
index 1102b81..82b0951 100644 (file)
--- a/ldiskfs/configure.ac
+++ b/ldiskfs/configure.ac
@@ -33,13 +33,6 @@ $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],
@@ -90,28 +83,15 @@ 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
+LB_HAVE_EXT4_ENABLED
 
 if test x$enable_ext4 = xyes ; then
-        AC_DEFINE(HAVE_EXT4_LDISKFS, 1, [ldiskfs based on ext4])
-        BACKFS=ext4
+       AC_DEFINE(HAVE_EXT4_LDISKFS, 1, [ldiskfs based on ext4])
+       BACKFS=ext4
 else
-        BACKFS=ext3
+       BACKFS=ext3
 fi
+
 AC_SUBST(BACKFS)
 BACKFSU=${BACKFS/ext/EXT}
 AC_SUBST(BACKFSU) # We need a Upper string