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Date:	Wed, 3 Apr 2013 16:42:44 +0200
From:	Jan Kara <jack@...e.cz>
To:	Mel Gorman <mgorman@...e.de>
Cc:	"Darrick J. Wong" <darrick.wong@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jan Kara <jack@...e.cz>, Shuge <shugelinux@...il.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-ext4@...r.kernel.org, Kevin <kevin@...winnertech.com>,
	Theodore Ts'o <tytso@....edu>, Jens Axboe <axboe@...nel.dk>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3] mm: Make snapshotting pages for stable writes a
 per-bio operation

On Wed 03-04-13 15:20:19, Mel Gorman wrote:
> On Tue, Apr 02, 2013 at 10:01:43AM -0700, Darrick J. Wong wrote:
> > Hi,
> > 
> > A couple of weeks have gone by without further comments about this patch.
> > 
> > Are you interested in the minor cleanups and added comments, or is the v2 patch
> > in -next good enough?
> > 
> > Apparently Mel Gorman's interested in this patchset too.  Mel: Most of stable
> > pages part 2 are already in upstream for 3.9... except this piece.  Are you
> > interested in having this piece in 3.9 also?  Or is 3.10 good enough for
> > everyone?
> > 
> 
> My understanding is that it only affects ARM and DEBUG_VM so there is a
> relatively small chance of this generating spurious bug reports.  However,
> 3.9 is still far enough away that I see no good reason to delay this patch
> until 3.10 either.
  No, actually with direct IO, anything that needs stable pages is going to
blow up quickly because pages attached to bio needn't be from page cache. So
I think it should better make it into 3.9.

									Honza
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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