X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fautoconf%2Flustre-core.m4;h=97f1a2d473a12c4567152cbf2986a5b28d7e55c5;hp=6c18234bb89f432bb8dcb300cfb53b6ae5d2895a;hb=ab8b977f77e44c3f4d57be2244e9df898fd15316;hpb=b567f5066b7ca2d15d4f492ec205651c9a63ef98

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 6c18234..97f1a2d 100644
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -1890,6 +1890,28 @@ new_cancel_dirty_page, [
 ]) # LC_NEW_CANCEL_DIRTY_PAGE
 
 #
+# LC_SYMLINK_OPS_USE_NAMEIDATA
+#
+# For the 4.2+ kernels the file system internal symlink api no
+# longer uses struct nameidata as a argument
+#
+AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
+LB_CHECK_COMPILE([if symlink inode operations have struct nameidata argument],
+symlink_use_nameidata, [
+	#include <linux/namei.h>
+	#include <linux/fs.h>
+],[
+	struct nameidata *nd = NULL;
+
+	((struct inode_operations *)0)->follow_link(NULL, nd);
+	((struct inode_operations *)0)->put_link(NULL, nd, NULL);
+],[
+	AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
+		[symlink inode operations need struct nameidata argument])
+])
+]) # LC_SYMLINK_OPS_USE_NAMEIDATA
+
+#
 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks
@@ -2046,6 +2068,7 @@ AC_DEFUN([LC_PROG_LINUX], [
 
 	# 4.2
 	LC_NEW_CANCEL_DIRTY_PAGE
+	LC_SYMLINK_OPS_USE_NAMEIDATA
 
 	#
 	AS_IF([test "x$enable_server" != xno], [