Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759934Ab0LNUBq (ORCPT ); Tue, 14 Dec 2010 15:01:46 -0500 Received: from rcsinet10.oracle.com ([148.87.113.121]:47481 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759921Ab0LNUBo (ORCPT ); Tue, 14 Dec 2010 15:01:44 -0500 To: Ric Wheeler Cc: Christian Brandt , linux-kernel@vger.kernel.org, "Martin K. Petersen" , Mike Snitzer , Hugh Dickins Subject: Re: swap storage alignment and stride size From: "Martin K. Petersen" Organization: Oracle References: <4CFFBA7D.6060802@psi5.com> <4CFFE2EA.9040909@gmail.com> Date: Tue, 14 Dec 2010 15:00:41 -0500 In-Reply-To: <4CFFE2EA.9040909@gmail.com> (Ric Wheeler's message of "Wed, 08 Dec 2010 14:56:26 -0500") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 849 Lines: 22 >>>>> "Ric" == Ric Wheeler writes: Sorry, I've been away for a couple of weeks. Ric> There has been a lot of work on alignment, Martin Petersen lead Ric> most of that and is probably the best one to ping. With modern tooling we should align the partition or DM device correctly so the swap starts on a properly aligned boundary. But I don't think anybody has looked into hooking the swap stuff up with the I/O topology. I'm also not sure the swap code is flexible enough to deal with units that are bigger than page size. Hugh? -- Martin K. Petersen Oracle Linux Engineering -- 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/