From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: util-linux-owner@vger.kernel.org Received: from mail-la0-f46.google.com ([209.85.215.46]:52450 "EHLO mail-la0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755334Ab2JVREI (ORCPT ); Mon, 22 Oct 2012 13:04:08 -0400 Received: by mail-la0-f46.google.com with SMTP id h6so1756128lag.19 for ; Mon, 22 Oct 2012 10:04:06 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <1350925048-31084-1-git-send-email-venkat@linaro.org> References: <1350925048-31084-1-git-send-email-venkat@linaro.org> Date: Mon, 22 Oct 2012 22:34:06 +0530 Message-ID: Subject: Re: [RFC PATCH 0/4] Adding useful information into swap partition header From: Venkatraman S To: kzak@redhat.com Cc: util-linux@vger.kernel.org, arnd.bergmann@linaro.org, Venkatraman S Content-Type: text/plain; charset=ISO-8859-1 Sender: util-linux-owner@vger.kernel.org List-ID: On 22 October 2012 22:27, Venkatraman S wrote: > Trying some of the ideas bounced around in lkml for > optimizing swap on flash (eMMC / SD) media [1], we can start > to add useful information into swapheader without breaking > compatibility. > Such information can help the kernel swap management algo > to tune itself to the geometry of flash devices (erase block > size and page size etc). > Some more features (like command line override) are still > under development. In long term, libblkid/mkswap can be extended > to even detect this information by timing attacks, > even if sysfs parameters are not present. > Oops: Some reference links were missed in the cover letter.. [1] https://lkml.org/lkml/2012/3/30/410