diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index bee092727cad..fc714ef402a6 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -593,7 +593,7 @@ static void blkcg_iolatency_done_bio(struct rq_qos *rqos, struct bio *bio)
 	bool enabled = false;
 
 	blkg = bio->bi_blkg;
-	if (!blkg)
+	if (!blkg || !bio_flagged(bio, BIO_TRACKED))
 		return;
 
 	iolat = blkg_to_lat(bio->bi_blkg);
diff --git a/block/blk-rq-qos.h b/block/blk-rq-qos.h
index 3c85f26d3846..564851889550 100644
--- a/block/blk-rq-qos.h
+++ b/block/blk-rq-qos.h
@@ -168,6 +168,11 @@ static inline void rq_qos_done_bio(struct request_queue *q, struct bio *bio)
 
 static inline void rq_qos_throttle(struct request_queue *q, struct bio *bio)
 {
+	/*
+	 * BIO_TRACKED lets controllers know that a bio went through the
+	 * normal rq_qos path.
+	 */
+	bio_set_flag(bio, BIO_TRACKED);
 	if (q->rq_qos)
 		__rq_qos_throttle(q->rq_qos, bio);
 }
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 46c005d601ac..fc99474ac968 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -228,6 +228,7 @@ struct bio {
 #define BIO_TRACE_COMPLETION 10	/* bio_endio() should trace the final completion
 				 * of this bio. */
 #define BIO_QUEUE_ENTERED 11	/* can use blk_queue_enter_live() */
+#define BIO_TRACKED 12		/* set if bio goes through the rq_qos path */
 
 /* See BVEC_POOL_OFFSET below before adding new flags */