[PATCH 15/25] mtip32xx: add a status field to struct mtip_cmd

Christoph Hellwig
2017-04-06T15:39:34Z

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 30076e7753bc..ec998e80cfaf 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;
}

@@ -4107,9 +4108,10 @@ 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