Re: [PATCH] scsi_debug: Use scsi-mq if it has been enabled

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On 2018-01-23 07:39 PM, Bart Van Assche wrote:
Since we want to remove the single queue code from the SCSI core
at the appropriate time and since scsi-mq performs better than
scsi-sq even when using only a single hardware queue, use scsi-mq
if it has been enabled.

Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx>
Cc: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Cc: Hannes Reinecke <hare@xxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>

Acked: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>

---
  drivers/scsi/scsi_debug.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index a5986dae9020..40df3eea72c8 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -5782,7 +5782,7 @@ static int sdebug_driver_probe(struct device * dev)
  	}
  	/* Decide whether to tell scsi subsystem that we want mq */
  	/* Following should give the same answer for each host */
-	sdebug_mq_active = shost_use_blk_mq(hpnt) && (submit_queues > 1);
+	sdebug_mq_active = shost_use_blk_mq(hpnt);
  	if (sdebug_mq_active)
  		hpnt->nr_hw_queues = submit_queues;




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