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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, NICE_REPLY_A,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 A1F45C433DB for ; Fri, 22 Jan 2021 00:57:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6E38322CAE for ; Fri, 22 Jan 2021 00:57:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726257AbhAVA5U (ORCPT ); Thu, 21 Jan 2021 19:57:20 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:11122 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725765AbhAVA4s (ORCPT ); Thu, 21 Jan 2021 19:56:48 -0500 Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4DMLQC1T2Fz15x8C; Fri, 22 Jan 2021 08:54:59 +0800 (CST) Received: from [10.136.110.154] (10.136.110.154) by smtp.huawei.com (10.3.19.201) with Microsoft SMTP Server (TLS) id 14.3.498.0; Fri, 22 Jan 2021 08:56:02 +0800 Subject: Re: [f2fs-dev] [PATCH v5 2/2] f2fs: add ckpt_thread_ioprio sysfs node To: Daeho Jeong , , , CC: Daeho Jeong References: <20210121134529.1201249-1-daeho43@gmail.com> <20210121134529.1201249-2-daeho43@gmail.com> From: Chao Yu Message-ID: <2e97b330-3e8d-d876-e060-e44123f27f2c@huawei.com> Date: Fri, 22 Jan 2021 08:56:01 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20210121134529.1201249-2-daeho43@gmail.com> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.136.110.154] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2021/1/21 21:45, Daeho Jeong wrote: > From: Daeho Jeong > > Added "ckpt_thread_ioprio" sysfs node to give a way to change checkpoint > merge daemon's io priority. Its default value is "be,3", which means > "BE" I/O class and I/O priority "3". We can select the class between "rt" > and "be", and set the I/O priority within valid range of it. > "," delimiter is necessary in between I/O class and priority number. > > Signed-off-by: Daeho Jeong Reviewed-by: Chao Yu Thanks,