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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7606C433F5 for ; Sun, 17 Oct 2021 15:00:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 936D760F46 for ; Sun, 17 Oct 2021 15:00:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343953AbhJQPCk (ORCPT ); Sun, 17 Oct 2021 11:02:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:41676 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241731AbhJQPCj (ORCPT ); Sun, 17 Oct 2021 11:02:39 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id D5E2860C4D; Sun, 17 Oct 2021 15:00:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1634482829; bh=CZmDICCzhkLK1KqmUZwDtCRFPPI+j7qhJXvlQjcBucg=; h=Date:Subject:To:References:From:In-Reply-To:From; b=joOfFlaWsD0EXuPnkTu8K4hBQDmSPKsg+zGvTOIf1Rvk7cBGUZx4wstFzG1b0JlA/ VR6TzH8mqygi009HKbyo2GYrL9Fl9R/7PK0WYdpDHaXSp0gwWdLqJ+HA30qdq91FKS FBtfoe69HJM1UvEF/0fH4WwB4vmDAigRmy8X4TqDP312q1t24dWsJZxONuwWABGNCR yhjGCu8QRMiEmimPsf3FYspEluZge4iQfslvvc8DZGr/WEaTPkYtOKlBYVCzG9pvKV oGqDf/fJG/tY/JmvhJZY3aZv0awmlAgxoKeO1Ru2WpwjhpAfrzH7CWXcJb7P9+2gYI Iguqp442JncKg== Message-ID: Date: Sun, 17 Oct 2021 23:00:16 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [PATCH v6 2/2] erofs: add multiple device support Content-Language: en-US To: Gao Xiang , linux-erofs@lists.ozlabs.org, Liu Bo , Yan Song , LKML , Peng Tao , Joseph Qi , Changwei Ge , Liu Jiang References: <20211010063345.28183-1-xiang@kernel.org> <20211014081010.43485-1-hsiangkao@linux.alibaba.com> <20211017041523.GA15116@hsiangkao-HP-ZHAN-66-Pro-G1> From: Chao Yu In-Reply-To: <20211017041523.GA15116@hsiangkao-HP-ZHAN-66-Pro-G1> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2021/10/17 12:15, Gao Xiang wrote: > Hi Chao, > > On Sun, Oct 17, 2021 at 10:10:15AM +0800, Chao Yu wrote: >> File won't locate in multidevices, right? otherwise it needs to shrink mapped length >> as well. > > Thanks for your review. > > File can be located in multi-devices. But it's intended as I mentioned in the commit > message, each extent won't cross devices, which is guaranteed by mkfs seriously. > Otherwise, it's more complicated to handle (especially for the compression side) and > has no more benefits. Thanks for the explanation. Reviewed-by: Chao Yu Thanks, > > Thanks, > Gao Xiang > >> >> Thanks,