diff --git a/fs/bio.c b/fs/bio.c
index ca8f7a850fe30aa27cb6e3b524464197bd76f3c8..249dd6bb66c843ee9e487f124dbe37afab095581 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -261,6 +261,7 @@ inline void __bio_clone(struct bio *bio, struct bio *bio_src)
 	 */
 	bio->bi_vcnt = bio_src->bi_vcnt;
 	bio->bi_size = bio_src->bi_size;
+	bio->bi_idx = bio_src->bi_idx;
 	bio_phys_segments(q, bio);
 	bio_hw_segments(q, bio);
 }