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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 3E9AEC2BA2B for ; Thu, 16 Apr 2020 07:19:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 24479206D5 for ; Thu, 16 Apr 2020 07:19:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2438729AbgDPHTF (ORCPT ); Thu, 16 Apr 2020 03:19:05 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:2339 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2438104AbgDPHSz (ORCPT ); Thu, 16 Apr 2020 03:18:55 -0400 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id A6DA45EE4167EB0AB608; Thu, 16 Apr 2020 15:18:53 +0800 (CST) Received: from [10.134.22.195] (10.134.22.195) by smtp.huawei.com (10.3.19.202) with Microsoft SMTP Server (TLS) id 14.3.487.0; Thu, 16 Apr 2020 15:18:49 +0800 Subject: Re: [f2fs-dev] [PATCH] f2fs: introduce sysfs/data_io_flag to attach REQ_META/FUA To: Jaegeuk Kim , , , References: <20200403161249.68385-1-jaegeuk@kernel.org> From: Chao Yu Message-ID: Date: Thu, 16 Apr 2020 15:18:48 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20200403161249.68385-1-jaegeuk@kernel.org> Content-Type: text/plain; charset="windows-1252" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.134.22.195] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/4/4 0:12, Jaegeuk Kim wrote: > This patch introduces a way to attach REQ_META/FUA explicitly > to all the data writes given temperature. > > -> attach REQ_FUA to Hot Data writes > > -> attach REQ_FUA to Hot|Warm Data writes > > -> attach REQ_FUA to Hot|Warm|Cold Data writes > > -> attach REQ_FUA to Hot|Warm|Cold Data writes as well as > REQ_META to Hot Data writes > > Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu Thanks,