From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754498AbYIXUIS (ORCPT ); Wed, 24 Sep 2008 16:08:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752112AbYIXUIG (ORCPT ); Wed, 24 Sep 2008 16:08:06 -0400 Received: from mx1.redhat.com ([66.187.233.31]:33350 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752036AbYIXUIE (ORCPT ); Wed, 24 Sep 2008 16:08:04 -0400 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: References: <20080923053228.GA5825@wotan.suse.de> <20080914073906.GA6184@elte.hu> <20080914004442.4f8e851f.akpm@linux-foundation.org> <20080914080631.GA10720@elte.hu> <20080914221231.GG27080@wotan.suse.de> <20080917131419.e6b7622e.akpm@linux-foundation.org> <20080918111226.GD29968@elte.hu> <48D2ABFD.3040103@goop.org> <1221772310.4779.29.camel@calx> <1221877119.8533.2.camel@nimitz> <13787.1222095249@redhat.com> <22749.1222280305@redhat.com> <1222280971.4425.42.camel@calx> To: Hugh Dickins Cc: dhowells@redhat.com, Matt Mackall , Nick Piggin , Dave Hansen , Jeremy Fitzhardinge , Ingo Molnar , Andrew Morton , a.p.zijlstra@chello.nl, linux-kernel@vger.kernel.org, Dave Hansen Subject: Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex Date: Wed, 24 Sep 2008 20:59:36 +0100 Message-ID: <30202.1222286376@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hugh Dickins 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