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 75565C63697 for ; Tue, 24 Nov 2020 03:07:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 215C82071E for ; Tue, 24 Nov 2020 03:07:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728896AbgKXDG7 (ORCPT ); Mon, 23 Nov 2020 22:06:59 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:8019 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726505AbgKXDG6 (ORCPT ); Mon, 23 Nov 2020 22:06:58 -0500 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4Cg87K4pKLzhYcQ; Tue, 24 Nov 2020 11:06:37 +0800 (CST) Received: from [10.136.114.67] (10.136.114.67) by smtp.huawei.com (10.3.19.210) with Microsoft SMTP Server (TLS) id 14.3.487.0; Tue, 24 Nov 2020 11:06:55 +0800 Subject: Re: [PATCH] f2fs: change to use rwsem for cp_mutex To: Sahitya Tummala , Jaegeuk Kim , CC: References: <1606109312-1944-1-git-send-email-stummala@codeaurora.org> From: Chao Yu Message-ID: Date: Tue, 24 Nov 2020 11:06:55 +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: <1606109312-1944-1-git-send-email-stummala@codeaurora.org> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.136.114.67] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/11/23 13:28, Sahitya Tummala wrote: > Use rwsem to ensure serialization of the callers and to avoid > starvation of high priority tasks, when the system is under > heavy IO workload. > > Signed-off-by: Sahitya Tummala Reviewed-by: Chao Yu Thanks,