diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 8ca481c..d17032c 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -607,6 +607,7 @@
 extern void blk_unregister_queue(struct gendisk *disk);
 extern void register_disk(struct gendisk *dev);
 extern void generic_make_request(struct bio *bio);
+extern void blk_rq_init(struct request_queue *q, struct request *rq);
 extern void blk_put_request(struct request *);
 extern void __blk_put_request(struct request_queue *, struct request *);
 extern void blk_end_sync_rq(struct request *rq, int error);