diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 0a4a2ab93ff4..27bda52b8da9 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -1358,6 +1358,7 @@ struct readahead_control {
 	unsigned int _batch_count;
 	bool _workingset;
 	unsigned long _pflags;
+	ANDROID_OEM_DATA(1);
 };
 
 #define DEFINE_READAHEAD(ractl, f, r, m, i)				\