diff --git a/[refs] b/[refs]
index 3a0d43fd3070..c699bf37b196 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b8a420952336ed81ef5c9bf8bad90d3deaee5521
+refs/heads/master: d4afcba95fca4dd0f831fe72c1fa4f0638f23765
diff --git a/trunk/arch/um/drivers/ubd_kern.c b/trunk/arch/um/drivers/ubd_kern.c
index 20505cafa299..0643e5bc9f41 100644
--- a/trunk/arch/um/drivers/ubd_kern.c
+++ b/trunk/arch/um/drivers/ubd_kern.c
@@ -514,7 +514,7 @@ static inline int ubd_file_size(struct ubd *ubd_dev, __u64 *size_out)
 		goto out;
 	}
 
-	fd = os_open_file(ubd_dev->file, global_openflags, 0);
+	fd = os_open_file(ubd_dev->file, of_read(OPENFLAGS()), 0);
 	if (fd < 0)
 		return fd;