linux-kernel - Re: [PATCH 0/2] lib/scatterlist: sg_page_iter: support for memory w/o backing pages

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Message-Id: <20130326125742.1aa431a9d406bc53159f27dc@linux-foundation.org>
Date:	Tue, 26 Mar 2013 12:57:42 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Daniel Vetter <daniel@...ll.ch>
Cc:	Imre Deak <imre.deak@...el.com>, intel-gfx@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, Tejun Heo <tj@...nel.org>,
	Daniel Vetter <daniel.vetter@...ll.ch>
Subject: Re: [PATCH 0/2] lib/scatterlist: sg_page_iter: support for memory
 w/o backing pages

On Tue, 26 Mar 2013 15:50:20 +0100 Daniel Vetter <daniel@...ll.ch> wrote:

> On Tue, Mar 26, 2013 at 03:14:17PM +0200, Imre Deak wrote:
> > When adding sg_page_iter I haven't thought properly through the use case
> > for sg lists w/o backing pages - which is specific to the i915 driver -
> > so this patchset adds support for this.
> > 
> > It applies on the i915 tree [1], where the iterator is in use already.
> > 
> > [1] git://people.freedesktop.org/~danvet/drm-intel [nightly branch]
> 
> i915 patches are already included in linux-next, so should apply on top of
> that, too. So can this go in through -mm for 3.10 or should I slurp it in
> through drm-intel trees (once it passes review)? I'd like to ditch the
> dummy page hack we're currently using (i.e. patch 2).

Please slurp it - there's little benefit in spreading it across two trees.
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