diff --git a/block/bio.c b/block/bio.c
index 807d25e466ec2ab7ae8c319e62a5621dc4fc29a7..0e4aa42bc30dc7919a58b5c93b4470d43cf01f85 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -311,17 +311,6 @@ static void bio_chain_endio(struct bio *bio)
 	bio_endio(__bio_chain_endio(bio));
 }
 
-/*
- * Increment chain count for the bio. Make sure the CHAIN flag update
- * is visible before the raised count.
- */
-static inline void bio_inc_remaining(struct bio *bio)
-{
-	bio_set_flag(bio, BIO_CHAIN);
-	smp_mb__before_atomic();
-	atomic_inc(&bio->__bi_remaining);
-}
-
 /**
  * bio_chain - chain bio completions
  * @bio: the target bio
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 6b7481f62218895945ba6dcd1b7df2e49268d552..9faebf7f9a33c04a73506e7e379432ce1cce93bf 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -702,6 +702,17 @@ static inline struct bio *bio_list_get(struct bio_list *bl)
 	return bio;
 }
 
+/*
+ * Increment chain count for the bio. Make sure the CHAIN flag update
+ * is visible before the raised count.
+ */
+static inline void bio_inc_remaining(struct bio *bio)
+{
+	bio_set_flag(bio, BIO_CHAIN);
+	smp_mb__before_atomic();
+	atomic_inc(&bio->__bi_remaining);
+}
+
 /*
  * bio_set is used to allow other portions of the IO system to
  * allocate their own private memory pools for bio and iovec structures.