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

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Message-ID: <30202.1222286376@redhat.com>
Date:	Wed, 24 Sep 2008 20:59:36 +0100
From:	David Howells <dhowells@...hat.com>
To:	Hugh Dickins <hugh@...itas.com>
Cc:	dhowells@...hat.com, Matt Mackall <mpm@...enic.com>,
	Nick Piggin <npiggin@...e.de>,
	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

Hugh Dickins <hugh@...itas.com> wrote:

> If we're hell-bent on #ifdefs throughout mm/shmem.c, I wouldn't
> mind scattering some CONFIG_SWAPs in there too, would cut out
> lots of overhead when swap unconfigured.  But again, how ugly?

That might be necessary: NOMMU doesn't support swap.

David
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