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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 254FCECAAD5 for ; Fri, 2 Sep 2022 09:49:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235751AbiIBJtH (ORCPT ); Fri, 2 Sep 2022 05:49:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235256AbiIBJtE (ORCPT ); Fri, 2 Sep 2022 05:49:04 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DF2ACE495 for ; Fri, 2 Sep 2022 02:49:01 -0700 (PDT) Received: from canpemm500006.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4MJtLj5SRYzkX1q; Fri, 2 Sep 2022 17:45:17 +0800 (CST) Received: from use12-sp2.huawei.com (10.67.189.174) by canpemm500006.china.huawei.com (7.192.105.130) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Fri, 2 Sep 2022 17:48:59 +0800 From: Xiaoming Ni To: , CC: , , , , , Subject: [PATCH v3 0/2] squashfs: Add the mount parameter "threads=" Date: Fri, 2 Sep 2022 17:48:53 +0800 Message-ID: <20220902094855.22666-1-nixiaoming@huawei.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220816010052.15764-1-nixiaoming@huawei.com> References: <20220816010052.15764-1-nixiaoming@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.67.189.174] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To canpemm500006.china.huawei.com (7.192.105.130) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently, Squashfs supports multiple decompressor parallel modes. However, this mode can be configured only during kernel building and does not support flexible selection during runtime. In the current patch set, the mount parameter "threads=" is added to allow users to select the parallel decompressor mode and configure the number of decompressors when mounting a file system. "threads=" The upper limit is num_online_cpus() * 2. v3: Based on Philip Lougher's suggestion, make the following updates: 1. The default configuration is the same as that before the patch installation. 2. Compile the three decompression modes when the new configuration is enabled. 3. "threads=1" supports only the SQUASHFS_DECOMP_SINGLE mode. v2: https://lore.kernel.org/lkml/20220816010052.15764-1-nixiaoming@huawei.com/ fix warning: sparse: incorrect type in initializer (different address spaces) Reported-by: kernel test robot v1: https://lore.kernel.org/lkml/20220815031100.75243-1-nixiaoming@huawei.com/ Xiaoming Ni (2): squashfs: add the mount parameter theads= squashfs: Allows users to configure the number of decompression threads. fs/squashfs/Kconfig | 51 ++++++++++++++++-- fs/squashfs/decompressor_multi.c | 32 +++++++----- fs/squashfs/decompressor_multi_percpu.c | 39 ++++++++------ fs/squashfs/decompressor_single.c | 23 +++++--- fs/squashfs/squashfs.h | 43 +++++++++++++-- fs/squashfs/squashfs_fs_sb.h | 4 +- fs/squashfs/super.c | 93 ++++++++++++++++++++++++++++++++- 7 files changed, 237 insertions(+), 48 deletions(-) -- 2.12.3