block: remove spurious uses of REQ_HARDBARRIER

REQ_HARDBARRIER is deprecated.  Remove spurious uses in the following
users.  Please note that other than osdblk, all other uses were
already spurious before deprecation.

* osdblk: osdblk_rq_fn() won't receive any request with
  REQ_HARDBARRIER set.  Remove the test for it.

* pktcdvd: use of REQ_HARDBARRIER in pkt_generic_packet() doesn't mean
  anything.  Removed.

* aic7xxx_old: Setting MSG_ORDERED_Q_TAG on REQ_HARDBARRIER is
  spurious.  Removed.

* sas_scsi_host: Setting TASK_ATTR_ORDERED on REQ_HARDBARRIER is
  spurious.  Removed.

* scsi_tcq: The ordered tag path wasn't being used anyway.  Removed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Cc: James Bottomley <James.Bottomley@suse.de>
Cc: Peter Osterlund <petero2@telia.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 1 insertions, 5 deletions

diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 17231385cb37..d6e7994aa634 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -97,13 +97,9 @@ static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth)
 static inline int scsi_populate_tag_msg(struct scsi_cmnd *cmd, char *msg)
 {
         struct request *req = cmd->request;
-        struct scsi_device *sdev = cmd->device;
 
         if (blk_rq_tagged(req)) {
-                if (sdev->ordered_tags && req->cmd_flags & REQ_HARDBARRIER)
-                        *msg++ = MSG_ORDERED_TAG;
-                else
-                        *msg++ = MSG_SIMPLE_TAG;
+                *msg++ = MSG_SIMPLE_TAG;
                 *msg++ = req->tag;
                 return 2;
         }