From patchwork Tue Oct 10 09:20:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wenchao Hao X-Patchwork-Id: 732377 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 B4287CD6910 for ; Tue, 10 Oct 2023 09:21:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229898AbjJJJVW (ORCPT ); Tue, 10 Oct 2023 05:21:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60160 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229517AbjJJJVW (ORCPT ); Tue, 10 Oct 2023 05:21:22 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 74A3DA4; Tue, 10 Oct 2023 02:21:20 -0700 (PDT) Received: from kwepemm000012.china.huawei.com (unknown [172.30.72.55]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4S4Vh64v2Kz1M9CX; Tue, 10 Oct 2023 17:18:46 +0800 (CST) Received: from build.huawei.com (10.175.101.6) by kwepemm000012.china.huawei.com (7.193.23.142) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Tue, 10 Oct 2023 17:21:18 +0800 From: Wenchao Hao To: "Martin K . Petersen" , Douglas Gilbert CC: "James E . J . Bottomley" , , , , Wenchao Hao Subject: [PATCH v6 01/10] scsi: scsi_debug: create scsi_debug directory in the debugfs filesystem Date: Tue, 10 Oct 2023 17:20:42 +0800 Message-ID: <20231010092051.608007-2-haowenchao2@huawei.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20231010092051.608007-1-haowenchao2@huawei.com> References: <20231010092051.608007-1-haowenchao2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemm000012.china.huawei.com (7.193.23.142) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Create directory scsi_debug in the root of the debugfs filesystem. Prepare to add interface for manage error injection. Acked-by: Douglas Gilbert Signed-off-by: Wenchao Hao --- drivers/scsi/scsi_debug.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 9c0af50501f9..562a48f53cda 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -41,6 +41,7 @@ #include #include #include +#include #include @@ -862,6 +863,8 @@ static const int device_qfull_result = static const int condition_met_result = SAM_STAT_CONDITION_MET; +static struct dentry *sdebug_debugfs_root; + /* Only do the extra work involved in logical block provisioning if one or * more of the lbpu, lbpws or lbpws10 parameters are given and we are doing @@ -7011,6 +7014,10 @@ static int __init scsi_debug_init(void) goto driver_unreg; } + sdebug_debugfs_root = debugfs_create_dir("scsi_debug", NULL); + if (IS_ERR_OR_NULL(sdebug_debugfs_root)) + pr_info("%s: failed to create initial debugfs directory\n", __func__); + for (k = 0; k < hosts_to_add; k++) { if (want_store && k == 0) { ret = sdebug_add_host_helper(idx); @@ -7057,6 +7064,7 @@ static void __exit scsi_debug_exit(void) sdebug_erase_all_stores(false); xa_destroy(per_store_ap); + debugfs_remove(sdebug_debugfs_root); } device_initcall(scsi_debug_init);