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,USER_AGENT_SANE_1 autolearn=unavailable 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 8A8DDC433DB for ; Wed, 17 Mar 2021 06:45:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B81764FA7 for ; Wed, 17 Mar 2021 06:45:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230037AbhCQGo6 (ORCPT ); Wed, 17 Mar 2021 02:44:58 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:13948 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230020AbhCQGo0 (ORCPT ); Wed, 17 Mar 2021 02:44:26 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4F0gZg5H8VzkZ02; Wed, 17 Mar 2021 14:42:51 +0800 (CST) Received: from [10.136.110.154] (10.136.110.154) by smtp.huawei.com (10.3.19.203) with Microsoft SMTP Server (TLS) id 14.3.498.0; Wed, 17 Mar 2021 14:44:18 +0800 Subject: Re: [PATCH 1/2] erofs: use workqueue decompression for atomic contexts only To: Huang Jianan , CC: , , References: <20210317035448.13921-1-huangjianan@oppo.com> <20210317035448.13921-2-huangjianan@oppo.com> From: Chao Yu Message-ID: <0ea35878-61b8-35c3-4471-432c510389ec@huawei.com> Date: Wed, 17 Mar 2021 14:44:17 +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: <20210317035448.13921-2-huangjianan@oppo.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 2021/3/17 11:54, Huang Jianan via Linux-erofs wrote: > z_erofs_decompressqueue_endio may not be executed in the atomic > context, for example, when dm-verity is turned on. In this scenario, > data can be decompressed directly to get rid of additional kworker > scheduling overhead. > > Signed-off-by: Huang Jianan > Signed-off-by: Guo Weichao > Reviewed-by: Gao Xiang Reviewed-by: Chao Yu Thanks,