LU-1994 kernel: 3.6 dentry_open uses struct path as first arg

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

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 0412c16..4bf9a02 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2141,6 +2141,30 @@ EXTRA_KCFLAGS="$tmp_flags"
 ])
 
 #
+# 3.6 dentry_open uses struct path as first argument
+# see kernel commit 765927b2
+#
+AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
+[AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_LINUX_TRY_COMPILE([
+       #include <linux/fs.h>
+       #include <linux/path.h>
+],[
+       struct path path;
+       dentry_open(&path, 0, NULL);
+],[
+       AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
+                 [dentry_open uses struct path as first argument])
+       AC_MSG_RESULT([yes])
+],[
+       AC_MSG_RESULT([no])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+])
+
+#
 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks
@@ -2311,6 +2335,7 @@ AC_DEFUN([LC_PROG_LINUX],
 
         # 3.6
         LC_HAVE_DENTRY_D_ALIAS_HLIST
+        LC_DENTRY_OPEN_USE_PATH
 
         #
         if test x$enable_server = xyes ; then