From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30D28C4338F for ; Thu, 19 Aug 2021 03:32:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1256E61154 for ; Thu, 19 Aug 2021 03:32:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237075AbhHSDdS (ORCPT ); Wed, 18 Aug 2021 23:33:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:41410 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237020AbhHSDdI (ORCPT ); Wed, 18 Aug 2021 23:33:08 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 24F5A6044F; Thu, 19 Aug 2021 03:32:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629343952; bh=J7zcvWJK4OZy21e19EhcGy6y2c9vUU1+2tNmbKsF1BA=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=F2XWpu8YCwp5nqppcPKjiZOzdqvQDP1osizNCVr07bdVh1blCdJfEvkOUfeOzGdwu WlWUhM2fgs1QjhRWI8ZyhJiNBqsb/KT1UBzv9IXsQcEqaT921SbdDEU98+u2LHp0OG alPf1x2pYsh82yweh6DrhLV45g8Rn673KEhazh6101pY343f/ZQt6zM+E9cLT4k3fe znAARZpkuU+ToyhFGbH2I6HihM86KXRn+bOivYFEPh30qZsOSuAevC2ffvG2N+EYWy STVMENPyVOLTLGBKtPYsCD4IDnlaq/w9x+xDsDtFl61kMymuBzJ4IYRPk9WD5NOJa8 UX1NIE7F5lejQ== Subject: Re: [PATCH 1/2] erofs: introduce chunk-based file on-disk format To: Gao Xiang , linux-erofs@lists.ozlabs.org, Liu Bo Cc: LKML , Peng Tao , Eryu Guan , Liu Jiang , Joseph Qi References: <20210818070713.4437-1-hsiangkao@linux.alibaba.com> From: Chao Yu Message-ID: <8e7291cf-8baf-2a79-997e-4847faa109db@kernel.org> Date: Thu, 19 Aug 2021 11:32:29 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210818070713.4437-1-hsiangkao@linux.alibaba.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2021/8/18 15:07, Gao Xiang wrote: > Currently, uncompressed data except for tail-packing inline is > consecutive on disk. > > In order to support chunk-based data deduplication, add a new > corresponding inode data layout. > > In the future, the data source of chunks can be either (un)compressed. > > Signed-off-by: Gao Xiang Reviewed-by: Chao Yu Thanks,