linux-kernel - Re: stec skd block driver needs updating for immutable biovec

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Date:	Mon, 04 Nov 2013 12:25:28 +0100
From:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	Mike Snitzer <snitzer@...hat.com>,
	Christoph Hellwig <hch@...radead.org>,
	Kent Overstreet <kmo@...erainc.com>,
	linux-kernel@...r.kernel.org
Subject: Re: stec skd block driver needs updating for immutable biovec


Hi,

On Friday, November 01, 2013 10:34:23 AM Jens Axboe wrote:
> On 11/01/2013 10:28 AM, Mike Snitzer wrote:
> > On Fri, Nov 01 2013 at 12:02pm -0400,
> > Jens Axboe <axboe@...nel.dk> wrote:
> > 
> >> On 11/01/2013 09:50 AM, Christoph Hellwig wrote:
> >>> On Fri, Nov 01, 2013 at 11:43:39AM -0400, Mike Snitzer wrote:
> >>>> All the bi_sector ones are low hanging fruit, but the conversion for
> >>>> skd_preop_sg_list_bio()'s bio_vec code is more involved.
> >>>>
> >>>> Kent, any chance you could crank through it?
> >>>>
> >>>> If not I can come back to trying to fix this later.. but I'm working
> >>>> through a test merge of linux-dm.git's 'for-next' with linux-block.git's
> >>>> 'for-next'.
> >>>
> >>> The right thing for 3.13 is to rip out the bio base code path, and
> >>> for 3.14 to convert it to blk-mq.
> >>
> >> It is. I will kill it.
> > 
> > I just cranked through it.. hope this helps (think I got everything but
> > may have missed something):
> 
> You lost out, I committed it 20 min ago :-0
> 
> http://git.kernel.dk/?p=linux-block.git;a=commit;h=1d36f7a5fb577afaaead6c5e2fc8e01e0c95235d

I did the complete bio path removal a month ago in my skd patchset:

	https://lkml.org/lkml/2013/9/30/279

and the change has been agreed on by Ramprasad C from STEC:

	https://lkml.org/lkml/2013/10/3/339

> Looks like you missed some of the skd_device removal, while I neglected
> killing bio/start_time in the skd_request_context.

Could you please apply my patchset before doing new work on skd driver?

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

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