diff --git a/block/blk.h b/block/blk.h
index ab0aaf958553bca8f257ef7b7c4f3d71e46c88d6..0198335c58388108f5b776e6d3a0646df0ffc5fb 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -55,6 +55,10 @@ void blk_free_flush_queue(struct blk_flush_queue *q);
 
 void blk_freeze_queue(struct request_queue *q);
 
+struct bio_vec *bvec_alloc(gfp_t, int, unsigned long *, mempool_t *);
+void bvec_free(mempool_t *, struct bio_vec *, unsigned int);
+unsigned int bvec_nr_vecs(unsigned short idx);
+
 static inline bool biovec_phys_mergeable(struct request_queue *q,
 		struct bio_vec *vec1, struct bio_vec *vec2)
 {
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 5d8977aafa199e4ee38f17d6b45ec3867f22b9e5..e135b500df5da1d7dbbd3019055533e7c3df7684 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -478,9 +478,6 @@ static inline void zero_fill_bio(struct bio *bio)
 	zero_fill_bio_iter(bio, bio->bi_iter);
 }
 
-extern struct bio_vec *bvec_alloc(gfp_t, int, unsigned long *, mempool_t *);
-extern void bvec_free(mempool_t *, struct bio_vec *, unsigned int);
-extern unsigned int bvec_nr_vecs(unsigned short idx);
 extern const char *bio_devname(struct bio *bio, char *buffer);
 
 #define bio_set_dev(bio, bdev) 				\