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, 12 deletions

diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index f0cfba9a1fc8..535085cd27ec 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -130,17 +130,6 @@ static void sas_scsi_task_done(struct sas_task *task)
         sc->scsi_done(sc);
 }
 
-static enum task_attribute sas_scsi_get_task_attr(struct scsi_cmnd *cmd)
-{
-        enum task_attribute ta = TASK_ATTR_SIMPLE;
-        if (cmd->request && blk_rq_tagged(cmd->request)) {
-                if (cmd->device->ordered_tags &&
-                    (cmd->request->cmd_flags & REQ_HARDBARRIER))
-                        ta = TASK_ATTR_ORDERED;
-        }
-        return ta;
-}
-
 static struct sas_task *sas_create_task(struct scsi_cmnd *cmd,
                                                struct domain_device *dev,
                                                gfp_t gfp_flags)
@@ -160,7 +149,7 @@ static struct sas_task *sas_create_task(struct scsi_cmnd *cmd,
         task->ssp_task.retry_count = 1;
         int_to_scsilun(cmd->device->lun, &lun);
         memcpy(task->ssp_task.LUN, &lun.scsi_lun, 8);
-        task->ssp_task.task_attr = sas_scsi_get_task_attr(cmd);
+        task->ssp_task.task_attr = TASK_ATTR_SIMPLE;
         memcpy(task->ssp_task.cdb, cmd->cmnd, 16);
 
         task->scatter = scsi_sglist(cmd);