Received: by 2002:a05:6a10:1287:0:0:0:0 with SMTP id d7csp4191280pxv; Mon, 19 Jul 2021 19:54:27 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxgfXZB80OhbAZbgsKz/l2NbzkGI5oEDw+fgAoH0KbCJc3KanALAcNjeO3hDLZo6UBVVoyU X-Received: by 2002:a17:906:c302:: with SMTP id s2mr30190264ejz.151.1626749667417; Mon, 19 Jul 2021 19:54:27 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1626749667; cv=none; d=google.com; s=arc-20160816; b=Vsf70wdM4a+O9N5wB1rJTUejzh8+boUTu/MCxfx7EGMiNucx/06bAxoLJsJItIX9kS zebAQKKvdG4j4hS5NA5TJj2nInTq9AXYmxGDZWlnmg42PgvWcel3eZXzxG5kDU4KWPH6 Jbz83uqSmeUHiUmm7WUNMjlwiq+QAPZSZisjo5OuiItkz0zz3KiChzvfiZAhchVwLIt0 DUIuh+WzAnsG5XQ9r0baSV416kYEkouEsZXo6383lsHkOXUnDwPbYolHUNI7VSKREhc3 5CEd727EkyVxTgd66nhwZKmv60RZ1BD1vaKI4xUARPjSPRv5rMFURebWaMD84c9JmwO9 ruDw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject:dkim-signature; bh=i2piWmfFmI1jGJzyWtU2k1v6B/zQ32HtdX+UR8+ABWI=; b=lG97DZB8LBkSR4nRNVFN+uxNgkLFVMfkzy+HgAoxEAAyDo24utrKR338Hqae7Rw4xp lQxIzLHLZLKEUcqgH/q+26xyFSfOPDL9m+yVk2MP/I1fhV2kzB7X5w1mMZV55UDl3GJ3 CxxFNvyMe/K20owoF9o9i6wn+GMyw+HUrS20flJoIMVylOYVV0nS70eMn3w91sxGEexB Vc4rnN6qQpyAcly0TUhEDVX0J7HVzeZeDFLU4O1OnpoM0IUzcdf/gbJBptt0bpHv9mCB mAkOqAuApfscu8TI2mFHyMfFyUZI54qfWGepkVYqHGirYd29HkI+J4QQK1mgrb13Z9uD 0t2A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=kSj9FQkI; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id p12si8832332ejy.596.2021.07.19.19.54.03; Mon, 19 Jul 2021 19:54:27 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=kSj9FQkI; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350543AbhGTAp5 (ORCPT + 99 others); Mon, 19 Jul 2021 20:45:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:44172 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349769AbhGTAoe (ORCPT ); Mon, 19 Jul 2021 20:44:34 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 724C261004; Tue, 20 Jul 2021 01:25:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1626744313; bh=bpoJFkc4WP2VzWtNaJ/5hbShq0wuVrNcAqjgy9xe0dM=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=kSj9FQkIYMaGBkCPL2bAtuP3Wu493GiAD+3SIzDma00gZQ7n71KbZ12bbw7242ZF5 G/2VNmUGmYDduNbI6QpMcn11skyy9Y2gBzrTlCI8oEl23fDaOEVHt5a6jrdtikPLB7 j4Cv5q3sGI0QczWO4SPDqcFK1aPqnVGzF8nTPoH/3URgrW3DkFWOyKqm+EwmjpyiV0 2LoBWYuBGKvDzXSzOwDExCUAISxiZecCNVR+01Cy2BUFnqCpK0BwlvtSPTSJhydt3t ObQtZJ1AR4rRrqsDC4qmMYBCj/NDhpMEaplAFNflZeH9DdBAF7AafvFPZwjqOtfjl8 47IYGc95m1Z5A== Subject: Re: [PATCH] f2fs: multidevice: support direct IO To: Jaegeuk Kim Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu References: <20210719084729.26117-1-chao@kernel.org> From: Chao Yu Message-ID: <3c2646ae-138b-c0fe-a757-06ae16b31928@kernel.org> Date: Tue, 20 Jul 2021 09:25:10 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: 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 2021/7/20 2:28, Jaegeuk Kim wrote: > On 07/19, Chao Yu wrote: >> Commit 3c62be17d4f5 ("f2fs: support multiple devices") missed >> to support direct IO for multiple device feature, this patch >> adds to support the missing part of multidevice feature. >> >> In addition, for multiple device image, we should be aware of >> any issued direct write IO rather than just buffered write IO, >> so that fsync and syncfs can issue a preflush command to the >> device where direct write IO goes, to persist user data for >> posix compliant. > > Is this aligned to Eric's iomap work? Will rebase to it soon, when would you plan to queue that iomap serial? Thanks,