block: require blk_rq_prep_clone() be given an initialized clone request

Prepare to allow blk_rq_prep_clone() to accept clone requests that were
allocated from blk-mq request queues.  As such the blk_rq_prep_clone()
caller must first initialize the clone request.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/block/blk-core.c b/block/blk-core.c
index 3ad405571dcc..1b5fa214efa3 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2945,8 +2945,6 @@ int blk_rq_prep_clone(struct request *rq, struct request *rq_src,
         if (!bs)
                 bs = fs_bio_set;
 
-        blk_rq_init(NULL, rq);
-
         __rq_for_each_bio(bio_src, rq_src) {
                 bio = bio_clone_fast(bio_src, gfp_mask, bs);
                 if (!bio)