X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fautoconf%2Flustre-core.m4;h=f47bc5f7e63781b46d327d99f6ad3cbe192ed7ab;hb=1e60ce443bdb4d1211758b0e53aea597bbdbc22d;hp=0732b9b6dfb7df73a87a78cae0f56932265010a6;hpb=9bd7e40d2934cd0162eeff5388f054444a982ac9;p=fs%2Flustre-release.git

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 0732b9b..f47bc5f 100644
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -1258,13 +1258,12 @@ AC_DEFUN([LC_HAVE_ONLY_PROCFS_SEQ],
 LB_LINUX_TRY_COMPILE([
 	#include <linux/proc_fs.h>
 ],[
-	struct inode *inode = NULL;
-	PDE_DATA(inode);
+	((struct proc_dir_entry *)0)->write_proc(NULL, NULL, 0, NULL);
+],[
+	AC_MSG_RESULT([no])
 ],[
 	AC_DEFINE(HAVE_ONLY_PROCFS_SEQ, 1, [only seq_files supported])
 	AC_MSG_RESULT([yes])
-],[
-	AC_MSG_RESULT([no])
 ])
 ])
 
@@ -1288,6 +1287,25 @@ LB_LINUX_TRY_COMPILE([
 ])
 
 #
+# 3.11 need to access d_count to get dentry reference count
+#
+AC_DEFUN([LC_HAVE_DCOUNT],
+[AC_MSG_CHECKING([if d_count exist])
+LB_LINUX_TRY_COMPILE([
+	#include <linux/dcache.h>
+],[
+	struct dentry de;
+
+	d_count(&de);
+],[
+	AC_DEFINE(HAVE_D_COUNT, 1, [d_count exist])
+	AC_MSG_RESULT([yes])
+],[
+	AC_MSG_RESULT([no])
+])
+])
+
+#
 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks
@@ -1386,6 +1404,9 @@ AC_DEFUN([LC_PROG_LINUX],
 	 LC_HAVE_ONLY_PROCFS_SEQ
 	 LC_BLKDEV_RELEASE_RETURN_INT
 
+	 # 3.11
+	 LC_HAVE_DCOUNT
+
 	 #
 	 if test x$enable_server != xno ; then
 		LC_FUNC_DEV_SET_RDONLY