+# 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])
+])
+])
+
+#