linux-kernel - Re: [PATCH] Export tiny shmem_file

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Date:	Mon, 20 Oct 2008 19:47:13 +0100 (BST)
From:	Hugh Dickins <hugh@...itas.com>
To:	Matt Mackall <mpm@...enic.com>
cc:	Dave Airlie <airlied@...hat.com>,
	Keith Packard <keithp@...thp.com>,
	Eric Anholt <eric@...olt.net>, Nick Piggin <npiggin@...e.de>,
	David Howells <dhowells@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Export tiny shmem_file_setup for DRM-GEM

On Mon, 20 Oct 2008, Matt Mackall wrote:
> On Sun, 2008-10-19 at 12:52 +0100, Hugh Dickins wrote:
> > We're trying to keep the !CONFIG_SHMEM tiny-shmem.c (using ramfs without
> > swap) in synch with CONFIG_SHMEM shmem.c (and mpm is preparing patches
> > to combine them).  I was glad to see EXPORT_SYMBOL_GPL(shmem_file_setup)
> > go into shmem.c, but why not support DRM-GEM when !CONFIG_SHMEM too?
> > But caution says still depend on MMU, since !CONFIG_MMU is.. different.
> > 
> > Signed-off-by: Hugh Dickins <hugh@...itas.com>
> 
> Acked-by: Matt Mackall <mpm@...enic.com>

Thanks.

> 
> Hugh, what path do you usually take for upstreaming shmem bits and what
> path should I take with my unify patch?

I send them to Andrew (Cc linux-kernel and/or linux-mm, erratic which,
at best depending on what the area of interest is - there's not much
of interest to linux-mm in the case of this unification) to get their
airing in -mm until the next merge window.

You could do that, or were you expecting me to pick up what you had?
We can do it that way too if you prefer: as things stood, I think
you were intending to add a patch to remove that redundant function,
and another to remove CONFIG_TMPFS - but I can do them if you prefer.

Hugh
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