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=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 F13A9C433E0 for ; Wed, 17 Mar 2021 06:44:38 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3DD7064F96 for ; Wed, 17 Mar 2021 06:44:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3DD7064F96 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4F0gch6T28z30DJ for ; Wed, 17 Mar 2021 17:44:36 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=huawei.com (client-ip=45.249.212.32; helo=szxga06-in.huawei.com; envelope-from=yuchao0@huawei.com; receiver=) Received: from szxga06-in.huawei.com (szxga06-in.huawei.com [45.249.212.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4F0gcf4WYWz2xZm for ; Wed, 17 Mar 2021 17:44:31 +1100 (AEDT) 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 , 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 X-BeenThere: linux-erofs@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development of Linux EROFS file system List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: zhangshiming@oppo.com, guoweichao@oppo.com, linux-kernel@vger.kernel.org Errors-To: linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Sender: "Linux-erofs" 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,