diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 645537e..c234693 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -152,9 +152,9 @@
 
 	/* the following fields are protected by nfs_client->cl_lock */
 	struct rb_root		state_owners;
-	struct rb_root		lockowner_id;
 #endif
 	struct ida		openowner_id;
+	struct ida		lockowner_id;
 	struct list_head	state_owners_lru;
 	struct list_head	layouts;
 	struct list_head	delegations;