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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: "Josef Bacik" <jbacik@fb.com>,
	"James Smart" <james.smart@broadcom.com>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
	"Roger Pau Monné" <roger.pau@citrix.com>,
	linux-scsi@vger.kernel.org, linux-nvme@lists.infradead.org,
	linux-block@vger.kernel.org, dm-devel@redhat.com
Subject: [PATCH 14/23] mtip32xx: add a status field to struct mtip_cmd
Date: Thu, 20 Apr 2017 16:03:07 +0200	[thread overview]
Message-ID: <20170420140316.6546-15-hch@lst.de> (raw)
In-Reply-To: <20170420140316.6546-1-hch@lst.de>

Instead of using req->errors, which will go away.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/block/mtip32xx/mtip32xx.c | 16 +++++++++-------
 drivers/block/mtip32xx/mtip32xx.h |  1 +
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 05e3e664ea1b..7406de29db58 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -241,7 +241,8 @@ static void mtip_async_complete(struct mtip_port *port,
 
 	rq = mtip_rq_from_tag(dd, tag);
 
-	blk_mq_complete_request(rq, status);
+	cmd->status = status;
+	blk_mq_complete_request(rq, 0);
 }
 
 /*
@@ -2910,18 +2911,19 @@ static void mtip_softirq_done_fn(struct request *rq)
 	if (unlikely(cmd->unaligned))
 		up(&dd->port->cmd_slot_unal);
 
-	blk_mq_end_request(rq, rq->errors);
+	blk_mq_end_request(rq, cmd->status);
 }
 
 static void mtip_abort_cmd(struct request *req, void *data,
 							bool reserved)
 {
+	struct mtip_cmd *cmd = blk_mq_rq_to_pdu(req);
 	struct driver_data *dd = data;
 
 	dbg_printk(MTIP_DRV_NAME " Aborting request, tag = %d\n", req->tag);
 
 	clear_bit(req->tag, dd->port->cmds_to_issue);
-	req->errors = -EIO;
+	cmd->status = -EIO;
 	mtip_softirq_done_fn(req);
 }
 
@@ -3816,7 +3818,6 @@ static int mtip_queue_rq(struct blk_mq_hw_ctx *hctx,
 	if (likely(!ret))
 		return BLK_MQ_RQ_QUEUE_OK;
 
-	rq->errors = ret;
 	return BLK_MQ_RQ_QUEUE_ERROR;
 }
 
@@ -4106,9 +4107,10 @@ static void mtip_no_dev_cleanup(struct request *rq, void *data, bool reserv)
 	struct driver_data *dd = (struct driver_data *)data;
 	struct mtip_cmd *cmd;
 
-	if (likely(!reserv))
-		blk_mq_complete_request(rq, -ENODEV);
-	else if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &dd->port->flags)) {
+	if (likely(!reserv)) {
+		cmd->status = -ENODEV;
+		blk_mq_complete_request(rq, 0);
+	} else if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &dd->port->flags)) {
 
 		cmd = mtip_cmd_from_tag(dd, MTIP_TAG_INTERNAL);
 		if (cmd->comp_func)
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index 7617888f7944..57b41528a824 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -352,6 +352,7 @@ struct mtip_cmd {
 	int retries; /* The number of retries left for this command. */
 
 	int direction; /* Data transfer direction */
+	int status;
 };
 
 /* Structure used to describe a port. */
-- 
2.11.0

  parent reply	other threads:[~2017-04-20 14:04 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-20 14:02 kill req->errors V4 Christoph Hellwig
2017-04-20 14:02 ` [PATCH 01/23] pd: don't check blk_execute_rq return value Christoph Hellwig
2017-04-20 14:59   ` Johannes Thumshirn
2017-04-20 14:02 ` [PATCH 02/23] block: remove the " Christoph Hellwig
2017-04-20 15:19   ` Bart Van Assche
2017-04-20 14:02 ` [PATCH 03/23] nvme-fc: fix status code handling in nvme_fc_fcpio_done Christoph Hellwig
2017-04-20 14:02 ` [PATCH 04/23] nvme: split nvme status from block req->errors Christoph Hellwig
2017-04-20 14:02 ` [PATCH 05/23] nvme: make nvme_error_status private Christoph Hellwig
2017-04-20 14:02 ` [PATCH 06/23] virtio: fix spelling of virtblk_scsi_request_done Christoph Hellwig
2017-04-20 14:03 ` [PATCH 07/23] virtio_blk: don't use req->errors Christoph Hellwig
2017-04-20 14:03 ` [PATCH 08/23] scsi: introduce a result field in struct scsi_request Christoph Hellwig
2017-04-20 15:25   ` Bart Van Assche
2017-04-20 14:03 ` [PATCH 09/23] loop: zero-fill bio on the submitting cpu Christoph Hellwig
2017-04-20 14:03 ` [PATCH 10/23] null_blk: don't pass always-0 req->errors to blk_mq_complete_request Christoph Hellwig
2017-04-20 15:02   ` Johannes Thumshirn
2017-04-20 14:03 ` [PATCH 11/23] dm rq: don't pass irrelevant error code " Christoph Hellwig
2017-04-20 15:04   ` Johannes Thumshirn
2017-04-20 15:25   ` Bart Van Assche
2017-04-20 14:03 ` [PATCH 12/23] dm mpath: don't check for req->errors Christoph Hellwig
2017-04-20 15:04   ` Johannes Thumshirn
2017-04-20 15:25   ` Bart Van Assche
2017-04-20 14:03 ` [PATCH 13/23] nbd: don't use req->errors Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig [this message]
2017-04-20 15:13   ` [PATCH 14/23] mtip32xx: add a status field to struct mtip_cmd Johannes Thumshirn
2017-04-20 14:03 ` [PATCH 15/23] xen-blkfront: don't use req->errors Christoph Hellwig
2017-04-20 14:03 ` [PATCH 16/23] blk-mq: remove the error argument to blk_mq_complete_request Christoph Hellwig
2017-04-20 15:14   ` Johannes Thumshirn
2017-04-20 15:28   ` Bart Van Assche
2017-04-20 14:03 ` [PATCH 17/23] blk-mq: simplify __blk_mq_complete_request Christoph Hellwig
2017-04-20 14:03 ` [PATCH 18/23] block: add a error_count field to struct request Christoph Hellwig
2017-04-20 14:03 ` [PATCH 19/23] floppy: switch from req->errors to req->error_count Christoph Hellwig
2017-04-20 14:03 ` [PATCH 20/23] ataflop: " Christoph Hellwig
2017-04-20 14:03 ` [PATCH 21/23] swim3: remove (commented out) printing of req->errors Christoph Hellwig
2017-04-20 15:19   ` Johannes Thumshirn
2017-04-20 14:03 ` [PATCH 22/23] blktrace: remove the unused block_rq_abort tracepoint Christoph Hellwig
2017-04-20 15:20   ` Johannes Thumshirn
2017-04-20 15:25     ` Christoph Hellwig
2017-04-20 15:38       ` Johannes Thumshirn
2017-04-20 18:13     ` Jens Axboe
2017-04-20 14:03 ` [PATCH 23/23] block: remove the errors field from struct request Christoph Hellwig
2017-04-20 15:21   ` Johannes Thumshirn
2017-04-20 18:16 ` kill req->errors V4 Jens Axboe
  -- strict thread matches above, loose matches on Subject: below --
2017-04-19 19:26 kill req->errors V3 Christoph Hellwig
2017-04-19 19:26 ` [PATCH 14/23] mtip32xx: add a status field to struct mtip_cmd Christoph Hellwig

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