LU-1994 kernel: 3.5 kernel encode_fh passes in parent inode

[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index c47dbc4..7745767 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2085,6 +2085,35 @@ LB_LINUX_TRY_COMPILE([
 ])
 
 #
 ])
 
 #

+# 3.5 encode_fh has parent inode passed in directly
+# see kernel commit b0b0382b
+#
+AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
+[AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_LINUX_TRY_COMPILE([
+       #include <linux/exportfs.h>
+       #include <linux/fs.h>
+       #include <linux/types.h>
+       int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
+       {
+               return 0;
+       }
+],[
+       struct export_operations exp_op;
+       exp_op.encode_fh = ll_encode_fh;
+],[
+       AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
+                 [have parent inode as parameter])
+       AC_MSG_RESULT([yes])
+],[
+       AC_MSG_RESULT([no])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+])
+
+#

 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks
 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks


@@ -2251,6 +2280,7 @@ AC_DEFUN([LC_PROG_LINUX],
 
         # 3.5
         LC_HAVE_CLEAR_INODE
 
         # 3.5
         LC_HAVE_CLEAR_INODE

+        LC_HAVE_ENCODE_FH_PARENT

 
         #
         if test x$enable_server = xyes ; then
 
         #
         if test x$enable_server = xyes ; then