scsi: remove ordered_tags scsi_device field

Remove the ordered_tags field, we haven't been issuing ordered tags based
on it since the big barrier rework in 2010.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 2 insertions, 11 deletions

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 9baeff03dd9b..22c449e926fa 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -789,19 +789,13 @@ void scsi_adjust_queue_depth(struct scsi_device *sdev, int tagged, int tags)
         sdev->queue_depth = tags;
         switch (tagged) {
                 case 0:
-                        sdev->ordered_tags = 0;
                         sdev->simple_tags = 0;
                         break;
                 case MSG_ORDERED_TAG:
-                        sdev->ordered_tags = 1;
-                        sdev->simple_tags = 1;
-                        break;
                 case MSG_SIMPLE_TAG:
-                        sdev->ordered_tags = 0;
                         sdev->simple_tags = 1;
                         break;
                 default:
-                        sdev->ordered_tags = 0;
                         sdev->simple_tags = 0;
                         sdev_printk(KERN_WARNING, sdev,
                                     "scsi_adjust_queue_depth, bad queue type, "
@@ -857,11 +851,8 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth)
                 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
                 return -1;
         }
-        
-        if (sdev->ordered_tags)
-                scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth);
-        else
-                scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth);
+
+        scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth);
         return depth;
 }
 EXPORT_SYMBOL(scsi_track_queue_full);