X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fautoconf%2Flustre-core.m4;h=4cc4bbf653fe0020ee80fa4bea8b69cc6134aec4;hp=109d5285b492090d95d6840440523208f8926ad0;hb=784cd144103871bd421c139c09bfbf4d5d29ca08;hpb=1f773208a4eee2088dc4707ebb904162978043de

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 109d528..4cc4bbf 100644
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2176,6 +2176,25 @@ EXTRA_KCFLAGS="$tmp_flags"
 ])
 
 #
+# 3.6 vfs adds iop->atomic_open
+#
+AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
+[AC_MSG_CHECKING([if iop has atomic_open])
+LB_LINUX_TRY_COMPILE([
+	#include <linux/fs.h>
+],[
+	struct inode_operations iop;
+	iop.atomic_open = NULL;
+],[
+	AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
+		  [have iop atomic_open])
+	AC_MSG_RESULT([yes])
+],[
+	AC_MSG_RESULT([no])
+])
+])
+
+#
 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks
@@ -2348,6 +2367,7 @@ AC_DEFUN([LC_PROG_LINUX],
 	 # 3.6
 	 LC_HAVE_DENTRY_D_ALIAS_HLIST
 	 LC_DENTRY_OPEN_USE_PATH
+	 LC_HAVE_IOP_ATOMIC_OPEN
 
 	 #
 	 if test x$enable_server = xyes ; then