X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=build%2Fautoconf%2Flustre-build-ldiskfs.m4;h=60924187a7e6123e476f2ed1239609a3b940bdd0;hp=ccb85c9d62cfa1d07998f8d40743d19af866e143;hb=19223651ed250966c0445c91dc91a5b9131dec35;hpb=97941a4de15d8b2939a7b8c8460dbe39e4dff0d8

diff --git a/build/autoconf/lustre-build-ldiskfs.m4 b/build/autoconf/lustre-build-ldiskfs.m4
index ccb85c9..6092418 100644
--- a/build/autoconf/lustre-build-ldiskfs.m4
+++ b/build/autoconf/lustre-build-ldiskfs.m4
@@ -236,8 +236,16 @@ AC_DEFUN([LB_LDISKFS_DEFINE_OPTIONS],
 [
 AC_DEFINE(HAVE_LDISKFS_OSD, 1, Enable ldiskfs osd)
 
+with_ldiskfs_pdo=no
 if test $LDISKFS_BACKFS = 'ext4'; then
 	AC_DEFINE(HAVE_EXT4_LDISKFS, 1, [build ext4 based ldiskfs])
+	case $LINUXRELEASE in
+	2.6.32*)
+		if test x$RHEL_KERNEL = xyes; then
+			with_ldiskfs_pdo=yes
+			AC_DEFINE(HAVE_LDISKFS_PDO, 1, [have ldiskfs PDO patch])
+		fi
+	esac
 fi
 
 LB_LDISKFS_JBD2_JOURNAL_CALLBACK_SET