LU-11071 build: Add server build support for Ubuntu 18.04

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

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index ce53272..cb27144 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2537,6 +2537,24 @@ generic_write_sync_2args, [
 ]) # LC_GENERIC_WRITE_SYNC_2ARGS
 
 #
+# LC_FOP_ITERATE_SHARED
+#
+# Kernel version 4.7 adds iterate_shared method to file_operations
+#
+AC_DEFUN([LC_FOP_ITERATE_SHARED], [
+LB_CHECK_COMPILE([if 'file_operations' has 'iterate_shared'],
+fop_iterate_shared, [
+       #include <linux/fs.h>
+],[
+       struct file_operations fop;
+       fop.iterate_shared = NULL;
+],[
+       AC_DEFINE(HAVE_FOP_ITERATE_SHARED, 1,
+               [file_operations has iterate_shared])
+])
+]) # LC_FOP_ITERATE_SHARED
+
+#
 # LC_FOPS_ITERATE_SHARED
 #
 # 4.7 commit ae05327a00fd47c34dfe25294b359a3f3fef96e8