NVMe: Allow request merges

Keith Busch · axboe · commit ef2d4615c59e · 2016-02-11T13:14:03.000-07:00
It is generally more efficient to submit larger IO.

Signed-off-by: Keith Busch &lt;keith.busch@intel.com&gt;
Reviewed-by: Johannes Thumshirn &lt;jthumshirn@suse.de&gt;
Reviewed-by: Sagi Grimberg &lt;sagig@mellanox.com&gt;
Signed-off-by: Jens Axboe &lt;axboe@fb.com&gt;
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
@@ -1121,7 +1121,6 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
 	ns->queue = blk_mq_init_queue(ctrl->tagset);
 	if (IS_ERR(ns->queue))
 		goto out_free_ns;
-	queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, ns->queue);
 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, ns->queue);
 	ns->queue->queuedata = ns;
 	ns->ctrl = ctrl;
