diff mbox

[1/5] nvme: move ->retries setup to nvme_setup_cmd

Message ID 20170405141856.1862-2-hch@lst.de (mailing list archive)
State New, archived
Headers show

Commit Message

Christoph Hellwig April 5, 2017, 2:18 p.m. UTC 
This way we get the behavior right for the non-PCIe transports.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/nvme/host/core.c | 5 +++++
 drivers/nvme/host/pci.c  | 4 ----
 2 files changed, 5 insertions(+), 4 deletions(-)

Comments

Johannes Thumshirn April 5, 2017, 2:43 p.m. UTC | #1 
On Wed, Apr 05, 2017 at 04:18:52PM +0200, Christoph Hellwig wrote:
> This way we get the behavior right for the non-PCIe transports.

Could you please share a bit of your minds inner workings for us mere mortals?

Thanks,
	Johannes
Christoph Hellwig April 5, 2017, 2:50 p.m. UTC | #2 
On Wed, Apr 05, 2017 at 04:43:34PM +0200, Johannes Thumshirn wrote:
> On Wed, Apr 05, 2017 at 04:18:52PM +0200, Christoph Hellwig wrote:
> > This way we get the behavior right for the non-PCIe transports.
> 
> Could you please share a bit of your minds inner workings for us mere mortals?

It's initialized to zero the first time the command is submitted
and will then be incremented when queueing a retry.
diff mbox

Patch

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 3c908e1bc903..0437f44d00f9 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -350,6 +350,11 @@  int nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
 {
 	int ret = BLK_MQ_RQ_QUEUE_OK;
 
+	if (!(req->rq_flags & RQF_DONTPREP)) {
+		req->retries = 0;
+		req->rq_flags |= RQF_DONTPREP;
+	}
+
 	switch (req_op(req)) {
 	case REQ_OP_DRV_IN:
 	case REQ_OP_DRV_OUT:
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 9e686a67d93b..3818ab15a26e 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -326,10 +326,6 @@  static int nvme_init_iod(struct request *rq, struct nvme_dev *dev)
 	iod->nents = 0;
 	iod->length = size;
 
-	if (!(rq->rq_flags & RQF_DONTPREP)) {
-		rq->retries = 0;
-		rq->rq_flags |= RQF_DONTPREP;
-	}
 	return BLK_MQ_RQ_QUEUE_OK;
 }