Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp662367pxb; Thu, 21 Jan 2021 17:11:51 -0800 (PST) X-Google-Smtp-Source: ABdhPJwC5s7nrJSEZ+s0nVY8ltxWzxUyQlU/pqM9/v9WWljQUeCFObolXRh8Znhpq44UERILAVfR X-Received: by 2002:a17:906:a042:: with SMTP id bg2mr1355024ejb.540.1611277911052; Thu, 21 Jan 2021 17:11:51 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1611277911; cv=none; d=google.com; s=arc-20160816; b=Rs9N7YOInewxRl1fJIm7tSXvbi+psxUbJpYQLlcKZ6Hs9DTQQ4DIjl7zpz8ygflFdt QVFbJRXyZWS38nqxglVcKJEiOlYOGe89rRFjjgI+bb52nWR3tsgDt5LNbIvekGCSvrPe XTbz2IJvXxZ77rBkqc+CI8haaM5yHTGp1P4hTsr1I17cJ5guZJQXPBRWPBJ3QNM8Er9q ZkSJpvXwmCz1U+zCNHvtaEiwyaamehi8g27QfzhxBK3I4vAmzICDMtvVD+mJv+rNnqDh arAIt5oSgjKlWoJ671vMl5zKWLvHVvxfsW1VhlW5nnfXEJk9nk0Rf7o0JbSyk0AEju1M R4Wg== 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; bh=LRDNzE+82OO2sTyfJ6CwAEC8BYZZ/svQHXvPoJJUQys=; b=N9x1afdjSlQpoaPdWhpK6rc/UsxZDQMKYDpaxStQR6z5l0nc8WcA1BhaSHj/rbgbXc ltkkykzT22+wQCOqPN7k9KRnsBXR0fM3wx6AhTMfxKd4nl60w0I8eWzrkHLrgoq6O0od wXrYA0IepsDyYGspQtDCr4G7AAg6gauPc0+HXbaDDw8N/gNeOLkFdIWBTP1xJnJ6lS8M dw/2R4Bevr/4VLvniLq1QD/CimBijwSmFdie9kB8wWQwqbs7L4WWvouv9FnaLHBJwX/R a9OtRv8r4XHakkhHWy9AdmYI/9DSIzGMZX6RBtDBPSYSLsOPs3UZJYTduhxtaicNG5xH BmUA== ARC-Authentication-Results: i=1; mx.google.com; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id s18si2542451eji.645.2021.01.21.17.11.27; Thu, 21 Jan 2021 17:11:51 -0800 (PST) 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; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726264AbhAVA5J (ORCPT + 99 others); Thu, 21 Jan 2021 19:57:09 -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,