Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261608AbVDCIsM (ORCPT ); Sun, 3 Apr 2005 04:48:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261617AbVDCIsM (ORCPT ); Sun, 3 Apr 2005 04:48:12 -0400 Received: from [213.170.72.194] ([213.170.72.194]:49612 "EHLO shelob.oktetlabs.ru") by vger.kernel.org with ESMTP id S261608AbVDCIr7 convert rfc822-to-8bit (ORCPT ); Sun, 3 Apr 2005 04:47:59 -0400 Message-ID: <424FADBC.208@yandex.ru> Date: Sun, 03 Apr 2005 12:47:56 +0400 From: "Artem B. Bityuckiy" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050323 Fedora/1.7.6-1.3.2 X-Accept-Language: en, ru, en-us MIME-Version: 1.0 To: =?ISO-8859-1?Q?J=F6rn_Engel?= Cc: "Artem B. Bityuckiy" , David Woodhouse , Herbert Xu , linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org Subject: Re: [RFC] CryptoAPI & Compression References: <1112366647.3899.66.camel@localhost.localdomain> <424D6175.8000700@yandex.ru> <1112367926.3899.70.camel@localhost.localdomain> <20050401153347.GA16835@wohnheim.fh-wedel.de> In-Reply-To: <20050401153347.GA16835@wohnheim.fh-wedel.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 892 Lines: 25 J?rn Engel wrote: > Absolutely. You can argue that 4KiB is too small and 8|16|32|64|... > would be much better, yielding in better compression ratio. But > having to read and uncompress the whole file when appending a few > bytes is utter madness. > Dear Joern, I meant that JFFS2 always reads by portions of PAGE_SIZE bytes due to the Page Cache. Consequently, nodes cotaining the peaces of the same page don't have to be independently uncompressible. Yes, there are some difficulties. But this is off-topic anyway and I don't think it is worth to discuss this here :-) -- Best Regards, Artem B. Bityuckiy, St.-Petersburg, Russia. - 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/