DM tries to copy a few fields around for BLOCK_PC requests, but given
that no dm-target ever wires up scsi_cmd_ioctl BLOCK_PC can't actually
be sent to dm.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/md/dm-rq.c | 16 ----------------
1 file changed, 16 deletions(-)
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 93f6e9f..3f12916 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -270,19 +270,6 @@ static void dm_end_request(struct request *clone, int error)
struct mapped_device *md = tio->md;
struct request *rq = tio->orig;
- if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
- rq->errors = clone->errors;
- rq->resid_len = clone->resid_len;
-
- if (rq->sense)
- /*
- * We are using the sense buffer of the original
- * request.
- * So setting the length of the sense data is enough.
- */
- rq->sense_len = clone->sense_len;
- }
-
free_rq_clone(clone);
rq_end_stats(md, rq);
if (!rq->q->mq_ops)
@@ -511,9 +498,6 @@ static int setup_clone(struct request *clone, struct request *rq,
if (r)
return r;
- clone->cmd = rq->cmd;
- clone->cmd_len = rq->cmd_len;
- clone->sense = rq->sense;
clone->end_io = end_clone_request;
clone->end_io_data = tio;
--
2.1.4
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