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>

2 files changed, 1 insertions, 3 deletions

diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c
index 72d62462433d..87311ebac0db 100644
--- a/drivers/block/osdblk.c
+++ b/drivers/block/osdblk.c
@@ -310,8 +310,7 @@ static void osdblk_rq_fn(struct request_queue *q)
                         break;
 
                 /* filter out block requests we don't understand */
-                if (rq->cmd_type != REQ_TYPE_FS &&
-                    !(rq->cmd_flags & REQ_HARDBARRIER)) {
+                if (rq->cmd_type != REQ_TYPE_FS) {
                         blk_end_request_all(rq, 0);
                         continue;
                 }
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index b1cbeb59bb76..0166ea136045 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -753,7 +753,6 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *
 
         rq->timeout = 60*HZ;
         rq->cmd_type = REQ_TYPE_BLOCK_PC;
-        rq->cmd_flags |= REQ_HARDBARRIER;
         if (cgc->quiet)
                 rq->cmd_flags |= REQ_QUIET;