linux-kernel - Re: [PATCH 1/2] blktrace: treat flush as barrier

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Message-ID: <1306509182.1351.1.camel@leonhard>
Date:	Sat, 28 May 2011 00:13:02 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	Mike Snitzer <snitzer@...hat.com>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Jens Axboe <jaxboe@...ionio.com>, linux-kernel@...r.kernel.org,
	Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH 1/2] blktrace: treat flush as barrier

2011-05-27 (금), 09:57 -0400, Mike Snitzer:
> On Fri, May 27, 2011 at 9:12 AM, Christoph Hellwig <hch@...radead.org> wrote:
> > On Fri, May 27, 2011 at 10:11:22PM +0900, Namhyung Kim wrote:
> >> Since BARRIER requests have been converted to FLUSH/FUA, it would be
> >> better for blktrace to recognize FLUSH requests as BARRIER for the
> >> backward-compatibility IMHO.
> >
> > I'd rather see new flags for them.  F and U maybe?
> 
> Somehow I'm not surprised by your F and U suggestion -- appropriate on
> multiple levels :)

OK. I'll work on that direction.
Thanks.


-- 
Regards,
Namhyung Kim


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