X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=block%2Fblk-core.c;h=f84a9b7b6f5aa167c5559079f095e3d3dff28f0d;hb=bf1cafa18be3b73ad30a3bbf2c3dae5ef333189a;hp=cf0ee764b908b384f69be9efbb9d7a1352eb7a52;hpb=dbb2816fc78abb0282a803bea1119e2f31354b20;p=linux-2.6-block.git

diff --git a/block/blk-core.c b/block/blk-core.c
index cf0ee764b908..f84a9b7b6f5a 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -273,10 +273,6 @@ static void req_bio_endio(struct request *rq, struct bio *bio,
 	bio_advance(bio, nbytes);
 
 	/* don't actually finish bio if it's part of flush sequence */
-	/*
-	 * XXX this code looks suspicious - it's not consistent with advancing
-	 * req->bio in caller
-	 */
 	if (bio->bi_iter.bi_size == 0 && !(rq->rq_flags & RQF_FLUSH_SEQ))
 		bio_endio(bio);
 }
@@ -3081,10 +3077,8 @@ bool blk_update_request(struct request *req, blk_status_t error,
 		struct bio *bio = req->bio;
 		unsigned bio_bytes = min(bio->bi_iter.bi_size, nr_bytes);
 
-		if (bio_bytes == bio->bi_iter.bi_size) {
+		if (bio_bytes == bio->bi_iter.bi_size)
 			req->bio = bio->bi_next;
-			bio->bi_next = NULL;
-		}
 
 		/* Completion has already been traced */
 		bio_clear_flag(bio, BIO_TRACE_COMPLETION);
@@ -3479,6 +3473,10 @@ static void __blk_rq_prep_clone(struct request *dst, struct request *src)
 	dst->cpu = src->cpu;
 	dst->__sector = blk_rq_pos(src);
 	dst->__data_len = blk_rq_bytes(src);
+	if (src->rq_flags & RQF_SPECIAL_PAYLOAD) {
+		dst->rq_flags |= RQF_SPECIAL_PAYLOAD;
+		dst->special_vec = src->special_vec;
+	}
 	dst->nr_phys_segments = src->nr_phys_segments;
 	dst->ioprio = src->ioprio;
 	dst->extra_len = src->extra_len;