diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h
index 8ed55af08427..c0c95ceb454c 100644
--- a/block/blk-mq-tag.h
+++ b/block/blk-mq-tag.h
@@ -26,6 +26,8 @@ struct blk_mq_tags {
 	 * request pool
 	 */
 	spinlock_t lock;
+
+	ANDROID_OEM_DATA(1);
 };
 
 extern struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags,