linux-kernel - Re: [PATCH 22/27] blk_end_request: changing xsysace (take 2)

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Date:	Tue, 11 Sep 2007 13:15:13 -0600
From:	"Grant Likely" <grant.likely@...retlab.ca>
To:	"Kiyoshi Ueda" <k-ueda@...jp.nec.com>
Cc:	jens.axboe@...cle.com, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org, linux-ide@...r.kernel.org,
	mike.miller@...com, dm-devel@...hat.com, j-nomura@...jp.nec.com
Subject: Re: [PATCH 22/27] blk_end_request: changing xsysace (take 2)

On 9/11/07, Kiyoshi Ueda <k-ueda@...jp.nec.com> wrote:
> This patch converts xsysace to use blk_end_request().
>
> xsysace is a little bit different from "normal" drivers.
> xsysace driver has a state machine in it.
> It calls end_that_request_first() and end_that_request_last()
> from different states. (ACE_FSM_STATE_REQ_TRANSFER and
> ACE_FSM_STATE_REQ_COMPLETE, respectively.)
>
> However, those states are consecutive and without any interruption
> inbetween.
> So we can just follow the standard conversion rule (b) mentioned in
> the patch subject "[PATCH 01/27] blk_end_request: add new request
> completion interface".
>
> Signed-off-by: Kiyoshi Ueda <k-ueda@...jp.nec.com>
> Signed-off-by: Jun'ichi Nomura <j-nomura@...jp.nec.com>
Acked-by: Grant Likely <grant.likely@...retlab.ca>

> ---
>  drivers/block/xsysace.c |    5 +----
>  1 files changed, 1 insertion(+), 4 deletions(-)
>
> diff -rupN 21-ide-scsi-caller-change/drivers/block/xsysace.c 22-xsysace-caller-change/drivers/block/xsysace.c
> --- 21-ide-scsi-caller-change/drivers/block/xsysace.c   2007-09-10 17:32:11.000000000 -0400
> +++ 22-xsysace-caller-change/drivers/block/xsysace.c    2007-09-10 18:14:20.000000000 -0400
> @@ -696,7 +696,7 @@ static void ace_fsm_dostate(struct ace_d
>
>                 /* bio finished; is there another one? */
>                 i = ace->req->current_nr_sectors;
> -               if (end_that_request_first(ace->req, 1, i)) {
> +               if (__blk_end_request(ace->req, 1, i)) {
>                         /* dev_dbg(ace->dev, "next block; h=%li c=%i\n",
>                          *      ace->req->hard_nr_sectors,
>                          *      ace->req->current_nr_sectors);
> @@ -711,9 +711,6 @@ static void ace_fsm_dostate(struct ace_d
>                 break;
>
>         case ACE_FSM_STATE_REQ_COMPLETE:
> -               /* Complete the block request */
> -               blkdev_dequeue_request(ace->req);
> -               end_that_request_last(ace->req, 1);
>                 ace->req = NULL;
>
>                 /* Finished request; go to idle state */
>


-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely@...retlab.ca
(403) 399-0195
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