From 9e59d091b0eb04f223ed037348e3d9e36f30e72b Mon Sep 17 00:00:00 2001
From: Keith Busch <keith.busch@intel.com>
Date: Thu, 8 Aug 2013 10:25:38 -0600
Subject: NVMe: Disk stats for read/write commands only

Flush and discard requests would previously mess up the accounting.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>

diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 8cfa457..360ac5d 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -342,11 +342,11 @@ static void bio_completion(struct nvme_dev *dev, void *ctx,
 	struct bio *bio = iod->private;
 	u16 status = le16_to_cpup(&cqe->status) >> 1;
 
-	if (iod->nents)
+	if (iod->nents) {
 		dma_unmap_sg(&dev->pci_dev->dev, iod->sg, iod->nents,
 			bio_data_dir(bio) ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
-
-	nvme_end_io_acct(bio, iod->start_time);
+		nvme_end_io_acct(bio, iod->start_time);
+	}
 	nvme_free_iod(dev, iod);
 	if (status)
 		bio_endio(bio, -EIO);
-- 
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