linux-kernel - Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i

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Message-ID: <24051.1222282618@redhat.com>
Date:	Wed, 24 Sep 2008 19:56:58 +0100
From:	David Howells <dhowells@...hat.com>
To:	Matt Mackall <mpm@...enic.com>
Cc:	dhowells@...hat.com, Nick Piggin <npiggin@...e.de>,
	Hugh Dickins <hugh@...itas.com>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	a.p.zijlstra@...llo.nl, linux-kernel@...r.kernel.org,
	Dave Hansen <haveblue@...ibm.com>
Subject: Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex

Matt Mackall <mpm@...enic.com> wrote:

> Is there any reason I shouldn't use truncate() in regular shmem.c if I
> were to unify the two files?

It would be nice to keep tiny-shmem.c, well, tiny for NOMMU systems that can't
have swap and can't have virtual memory.  Note that regular shmem does not now
build on top of ramfs, so you'd have to port the ramfs internals to it.

David
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