Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762342AbZAPJFs (ORCPT ); Fri, 16 Jan 2009 04:05:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755974AbZAPJFN (ORCPT ); Fri, 16 Jan 2009 04:05:13 -0500 Received: from mta23.gyao.ne.jp ([125.63.38.249]:57497 "EHLO mx.gate01.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755049AbZAPJFJ (ORCPT ); Fri, 16 Jan 2009 04:05:09 -0500 Date: Fri, 16 Jan 2009 18:02:11 +0900 From: Paul Mundt To: Greg KH Cc: Trilok Soni , Arve Hj?nnev?g , Alan Cox , Pavel Machek , Brian Swetland , arve@google.com, San Mehat , Robert Love , linux-kernel@vger.kernel.org, "linux-omap@vger.kernel.org" , Tony Lindgren , ext Juha Yrj?l? , viktor.rosendahl@nokia.com Subject: Re: lowmemory android driver not needed? Message-ID: <20090116090210.GB7039@linux-sh.org> Mail-Followup-To: Paul Mundt , Greg KH , Trilok Soni , Arve Hj?nnev?g , Alan Cox , Pavel Machek , Brian Swetland , arve@google.com, San Mehat , Robert Love , linux-kernel@vger.kernel.org, "linux-omap@vger.kernel.org" , Tony Lindgren , ext Juha Yrj?l? , viktor.rosendahl@nokia.com References: <20090114035237.GB16442@kroah.com> <20090114104307.GA20451@elf.ucw.cz> <20090114104834.18387fca@lxorguk.ukuu.org.uk> <20090114231739.GB24111@kroah.com> <20090115001224.GC11328@kroah.com> <5d5443650901150532r20a4c25q834afadde2f98a3@mail.gmail.com> <20090115234404.GA20142@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090115234404.GA20142@kroah.com> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1091 Lines: 20 On Thu, Jan 15, 2009 at 03:44:04PM -0800, Greg KH wrote: > On Thu, Jan 15, 2009 at 07:02:48PM +0530, Trilok Soni wrote: > > And there is one more lowmem driver developed by Nokia for Nokia 8xx > > tablets it seems. CCed Tony Lindgren, Juha and Viktor. > > > > http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap-2.6.git;a=blob;f=security/lowmem.c;h=ae78a530af39703e335ad769f1e6f097f63ec6dd;hb=HEAD > > As we can't stack LSMs, using the lsm interface for a simple memory > driver seems pretty wasteful :) > The heuristics and tunables are more what ended up being useful with this module, which could trivially be abstracted out. The focus of the lowmem module was mostly giving userspace an opportunity to change its behaviour, and to try to save critical state. I don't know how well this would map to the Android use cases, though. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/