From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 53CA5481A82; Tue, 1 Sep 2026 10:47:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=205.220.165.32 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788259621; cv=fail; b=ljupduD+Xz+EGWp4qJhz13I9k2vm/o9Ok/kdKNnLBdJ+ngYQYnrUuBmFSWX0Y9bqxj36BLNagX3uOWnw27eTAXhFnOY7Yq7MtxDung+/R+KuD4cr97JDeRRVcwRVrG3GkH/8PYo/lvdNQ4W6TvyST+cMqe7bAUFb9ca/aqISRs0= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788259621; c=relaxed/simple; bh=K1qNmY7yhnWQ2n7OukKAYSZ5uD0PIAoq0KACcunw584=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=miT9rCPcIf+2ON3v5YDr0Ia82Ggncfr1aeqGQDFFAZGaZ1iiKy9wmmy48wt5U+xwFD9jlk+Obm74jJNZFunowC9P0iL7zREHIWVjHiSo/ZN8wbJ8tianC07Shi3l3qa8JvQeuvaNp7PFt2eK+sKT/1Ey2cY1YfcCbzOXXUCx6Ws= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=eqVzhc9+; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=xInSwXj2; arc=fail smtp.client-ip=205.220.165.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="eqVzhc9+"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="xInSwXj2" Received: from pps.filterd (m0246627.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67VLBr3g2296254; Tue, 1 Sep 2026 10:46:36 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= corp-2025-04-25; bh=YnucySFgtjsQLDGVN5u9WVeJ3/xS7LfvTirXwVmh7AA=; b= eqVzhc9+Uqz+J5YDMMzCGm9EF6JMr/VsQUKo4wjdZsTAPrP1IQfus4a0QJlhHafB NBg8INMSjTBREXh3Q/AxPDzgKOMB1pSoK2UHVT9lXiuOp4aPEnIJfyODlrpZMk8P ImIkpzeBOtKnBqqd2PUxisjHnCHvTIDVrxMT7TdK6gbOSwUTvt/fZ7PNHOhkFGwl gEQ/AwoofXRTai/yUf4C4HO0K1WmVSBwyWcT4cScXaNjpzWIF/yiE1i47dK4b4yv 6rqzhb5TCJGyrMfiy8OB1UXM9vpUouOId63LZJo8zcCsox1lvrwJ32OmzeX/yFFE U1SnyXQgF2AvCmBPKMYYXA== Received: from phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta02.appoci.oracle.com [147.154.114.232]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 4gbp0xvdbp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 01 Sep 2026 10:46:36 +0000 (GMT) Received: from pps.filterd (phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.7/8.18.1.7) with ESMTP id 681AYt6M040129; Tue, 1 Sep 2026 10:46:35 GMT Received: from cy3pr05cu001.outbound.protection.outlook.com (mail-westcentralusazon11013051.outbound.protection.outlook.com [40.93.201.51]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 4gbnve8nfq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 01 Sep 2026 10:46:35 +0000 (GMT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Sp63mtcdwX0HfOQPTbbBQi+VCGcD3K7NPlLvaVClTcRbkEoMqrRWJrlJGsPyUvVosdEdyyVv/AqCzqQnzHInmo6Iq3G8ZY5c+4YD16L8tP6WP2Dao3QqMOdYb2sPc0fDaeF4nMxquI4w3P0H382CjCtAzVabrcLk7b3tnI+IyqHvEoZAguaXaXIa3nmeONpe0WrVp9BWdmFqRGjfjaEZDumFb7KFy4d4Iy7ZSLyXBXo/oKXd7VYz6NybxgrvSIUjNnBO8cIA7yeTre4mTB3Mqo/rzEu3/n9fGnki/cZWd3ZTRe/Ck1eDEUclWVkT4W8EAV1CEdyEjISPcUJmlUGm7w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=YnucySFgtjsQLDGVN5u9WVeJ3/xS7LfvTirXwVmh7AA=; b=PyeET9hqGtfEormsnNZm+Qtrm6VfefpsEZvAuHiX1X9T4np3lMq6ZUBFH+IMm2uInoB9MQGmx+pn7/3qoL03Js7wbibu+RbIiBuQcK45xzgLLYrJb7ugX7xmnofW5DT+XvBAIxlbkCPpTuAHjcIPySdmCpla9iq6zgQxLJJ4AL66kNwIU3FFLvNc33T+55fBNUGkyyLJFkMFGzgN18lH0G7hY9cMsUEoUSrN30GDNlMmL2qIka6Y0/Bb3mnM1xS3ilKPMvjAoXzoUBh5MPc8Vk+CjeEkn9nEwczbPO8y2wgscjTFwFzST8IcqCZdfZJS1oHBiLTj52ZxYpRd/AFPmQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=YnucySFgtjsQLDGVN5u9WVeJ3/xS7LfvTirXwVmh7AA=; b=xInSwXj2o0CS+mTagDYTCOcwPTXxg4oEFw4xlKQGdse7SEGPxFECB4oXpDZHoni2Hbj1CvwIqHt0rLAaW1JujdN/Q0wF9BiOzUmr53JbQVe4F/Ac9DKMbN0GLDpJopsWrYBZGFwZx5wnnCvtGh7wbkFglNrp9GFLqouv9uQV/Bo= Received: from DM4PR10MB6229.namprd10.prod.outlook.com (2603:10b6:8:8c::12) by SA2PR10MB4732.namprd10.prod.outlook.com (2603:10b6:806:fa::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.382.10; Tue, 1 Sep 2026 10:46:32 +0000 Received: from DM4PR10MB6229.namprd10.prod.outlook.com ([fe80::867:63e7:13fa:fa7d]) by DM4PR10MB6229.namprd10.prod.outlook.com ([fe80::867:63e7:13fa:fa7d%6]) with mapi id 15.21.0382.007; Tue, 1 Sep 2026 10:46:32 +0000 From: John Garry To: james.bottomley@hansenpartnership.com, hare@suse.com, mkp@kernel.org Cc: jmeneghi@redhat.com, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, michael.christie@oracle.com, snitzer@kernel.org, bmarzins@redhat.com, dm-devel@lists.linux.dev, linux-kernel@vger.kernel.org, nilay@linux.ibm.com, john.garry@linux.dev, hch@lst.de, kbusch@kernel.org, sagi@grimberg.me Subject: [PATCH v7 27/27] scsi: sd: add mpath_queue_depth dev attribute Date: Tue, 1 Sep 2026 10:45:26 +0000 Message-ID: <20260901104526.3850621-28-john.g.garry@oracle.com> X-Mailer: git-send-email 2.43.7 In-Reply-To: <20260901104526.3850621-1-john.g.garry@oracle.com> References: <20260901104526.3850621-1-john.g.garry@oracle.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: PH7P221CA0018.NAMP221.PROD.OUTLOOK.COM (2603:10b6:510:32a::17) To DM4PR10MB6229.namprd10.prod.outlook.com (2603:10b6:8:8c::12) Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM4PR10MB6229:EE_|SA2PR10MB4732:EE_ X-MS-Office365-Filtering-Correlation-Id: 4ec94192-e4cd-4696-f576-08df08164982 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|23010399003|7416014|376014|6133799003|18002099003|22082099003|56012099006|10067099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM4PR10MB6229.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(366016)(23010399003)(7416014)(376014)(6133799003)(18002099003)(22082099003)(56012099006)(10067099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?IW3cG5VggSq30FDnGWeA6u8pjV204M3LhxFclBTt0raZRtE82yVN/vxFGRcJ?= =?us-ascii?Q?e5DRrdwCpKHbdsb/rpPcnTy2k0iYBUYsjCikq4duEVReIf4BdY2LwIAWC5k1?= =?us-ascii?Q?Fa1vHxG/bcAmK848E/GPZDMe51fAm7WZXFVRQ7bW/c6+rt1lE7u30Bare8/H?= =?us-ascii?Q?8dCAkXmbxftuhoKL+QLEIfbmneoaixHn4yxGK7lSNE5w5g2ALSkFbQxcxQZh?= =?us-ascii?Q?ylm3Xhxcqz6yDu6NX4ON0uUrXTu7XrApCnBG+0hALAjTcF4g23MjYoJv6yBF?= =?us-ascii?Q?2mEAGaii3W3ErdNyRthMVraQJCK4Qh+b+kGZPZn5+vRWWfdlfjr/y43twCI9?= =?us-ascii?Q?BE26XqLFnxZAZAdwYmIxib9BNFCg2NLSONZfQa7J4n2Ul719jz3t7gTBPGlX?= =?us-ascii?Q?WhZnEFZmSmwrpdmF/VccVPT4Z+iF9lGwXWHi/RPlTO04yoNRDPb8WBtcOXOp?= =?us-ascii?Q?A3EQDwVhu6qRiM4D8QVo8FJWJNiAZUN14s+W4LewC7RFsOsTeDaNG4Lg+QR6?= =?us-ascii?Q?1t6khPveqWrz6nF2nk4AYiV4uRfGdW2bCS7E+qP1SIvL6NVFep2wrtOAzPMY?= =?us-ascii?Q?+YmYfo3brjFBUSYLTUt/lyU6CAPY44gVTKoVyuaMH8sECjuvD4N/3rv1k4ph?= =?us-ascii?Q?OfCgYEh/i3k3Ek1RXWxZOXx9NIEHcDZxTFyDoeXmFBKqwzmiGyQ0u8l4FdXp?= =?us-ascii?Q?bWuV4M8aBwvMh9vOpvGlzh1NSmqH7iirBWV4xBFJLqOZlnfsOVJPTzQXZAvK?= =?us-ascii?Q?4T86IIeGJprhR9GDCp6PJmVFDJZ1MWh+KK95gdNxxD2WP7fKj7rG7pg9f6Fp?= =?us-ascii?Q?YxgZjNStc0piDbalpg4vdhSp/n9sx8MwxxUFG7FCj5hhSx+kgW25VAWDfEiY?= =?us-ascii?Q?dPH7dgHN7z7CY7kndtmH/aZcGk8w7yHXcn//cU63kbgk0C319f5u9THmT+fD?= =?us-ascii?Q?UsGw8zgimwVV/ByjwWrOAt03ifE9ebZhjfoyHTi9pjhstdvjrIwNiOzTRIEl?= =?us-ascii?Q?ZvV656mr0y0TkP0bLNva8yZAZDAA1UtiBaqdzGS+N63VxA/MSpfUfyQV82Wd?= =?us-ascii?Q?UDM/vUij8Xvaf0hEcUg65EqVzs5eyynR/tKnJkGQ6YZHb+VZ0UGftBZ2UiO+?= =?us-ascii?Q?RZAa8mefalURxiA+sn0mXzmQNrb1LGvRlmBN1LWX+7gv2HN/CkWpvv8khRAY?= =?us-ascii?Q?gmErUe88lQQkGii1NZfdgAUtkcdHSJBGv7KbcSBZUX3lZJFeEEWI4atS7J9W?= =?us-ascii?Q?OtDu84RBXR/VI3o+Cjv0DHTFdfzk5ZI1ZLICq/kVbP+xwrxnuM/JQZEppJLW?= =?us-ascii?Q?n6QiSpG5KTjJIHYthtDRiKvfACPhC2Dr4DvrNpIJUrf6dWkCPQwWlD3FRhcc?= =?us-ascii?Q?wCdztBJ7KrUGUxh9QzR8ZwgFbtMuhdCRU57HvE8yyCkvPmnPaKKXZQSOGUUj?= =?us-ascii?Q?EgJU1Nyw1Gb6n85b3AzNce5RVQW5OodBVxdKNuTS3TNUXWYDcr73i3QErRtA?= =?us-ascii?Q?tUtualaAGWbvyCqPrbQ4IxBgIQMMsk/j6eFJewiQMsHglIz3uQVUT3X7XNRB?= =?us-ascii?Q?Riv8S2c6GDkgpWFZgsyFkV0J1E0tvKh39l8Ssop94++8FHuoJLXiuOdhJpCX?= =?us-ascii?Q?o1EYQHiEKrVTFqO4wlpZWk7HRhiX4Z6BOy7mlhsP0h/NLutC3AG8LPdzrkmL?= =?us-ascii?Q?i93TxhAXgnn71+u+YLW2LYaGkeBLHebegt/rwi6drZxtcv5VEJn22wJQ2lqM?= =?us-ascii?Q?IE0ahKoGEvHPOi8FLmHPdKw3+3k+Stw=3D?= X-Exchange-RoutingPolicyChecked: mTXwNwiRncF3EhIBEABv0V+IwU9mKp58IlK//XAA01kFEaBuV5T4IEERXVcG6gAOmCqEQSlRaHiT/mb4Oaf86uwzcxe5LRdxyRjbqflaLL3v3+xPX0mwxiRX1ymRwz6iIHx9jkF0p7zjOGHMAaaftw9RmmzEiIILcMOq05RFMYzfupku/v0FqCfkWIAYWLgk0a/U0gWGgMQSHwekYaV35rHDiqYQquFjMUqOoFJmXmlUxyDFiG5BqMBUesmFTrYt1E1wswyyJjO89bXXLrWiMUvjLVkzgpTlOZELESD6XL9prNO/advJVPTBhCXb85sn5MqU2pzD+3yx+6ZGLK+knQ== X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: TK0KLEYwXn8NqP6eostLxoeOEGuZl9AUlzC4xP5ysdilIORbfju2/kZtek5qXF8ksx43zvP41mYQztepkK9++jei37xcYQ5lNe9C8wNzkBjFxg1utHrRXxadtr0xk4gAdqH1sOlsgMlev372E6YicoDvrkDa5WLXYzSQj5bMsVopjeF3qFTOEVJrzndFhCcYHEA3vIWKWChVwIMxy8/VsRQK5dBT9hw1ZNqzEA+ZCCtQ71bo4Cb0LIybEhc5qXB1DNQudn+eqX7IJGAcpujbo8FfzYVWYfD36eeoa91lsYtivNFYX/b+7f7fX/y4/SVy3O/LaJhEDQhCRBCcaLfKgh74aHJXD6gmdYkwCEUwyEh2r4S9v30PqkUpujslSH1PXSzUIpB+HZzoIdj50UVhbo8Jbn0emH6XzAsFmo+MK/jxtBbROnXhfHLxcc5MgmsDFVh/Kf5tvrFk/ciGhfdqZhqfs3aD7uFDs3PQb8oXwnVsiMEY4xf40tw4hmyBK6LnZpoygWGCrSkG5FF1NhZ3A0bcK0JIpqBVXOAqmZnNYcKV5plsU3Q/Q5E4pzIb0hauZqqPhJIoF+TneONcyfjxrz54/O8O/+M9WVaBI4LAySM= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4ec94192-e4cd-4696-f576-08df08164982 X-MS-Exchange-CrossTenant-AuthSource: DM4PR10MB6229.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Sep 2026 10:46:32.6666 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: bSVfhVH6ul6UQDItZJkY5t54iM9kMRnCiSLy05sv7JYn+s8KA3ad82u80wVyX3TW/cPY1j9Dxzwq+gTcEZ9qrQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA2PR10MB4732 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-01_03,2026-08-31_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 mlxscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 bulkscore=0 malwarescore=0 spamscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2606160000 definitions=main-2609010094 X-Proofpoint-ORIG-GUID: axVMLX_dnsatlOBQsdDiH2S2qA2OyBsh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTAxMDA5NSBTYWx0ZWRfX4cZ3n8UHpiB8 njyfKqrzbQkh70HU06/0oyQ3nJbUkTBLjY5adrSX5Sf5RVdjzvbtt6G/9MXI5d1tSWeLoGsFIBZ xtpJtV9YvOlOZKhF/q+SHKSk4NbcUWHHHOp4yECUW5a1c2MaxQ3+7jsPb/SwXvGW4JOzc44nuzZ uiI0sozQW3lnp8+UD5CEfbnmLtADf3Nm+0pBoORfArvSr5rCnwhhtyeomjjVbHh3RPxS8KFFFdC jInZxnYW3ODk7aKN610e4pRNFDnGIGafratbwpaBioOqCzkPn6sGRITIqPGvZ1TC7zm6b82OmYl cy41hoQksxdK1ujPp8JpJ4F25L134C31s4k1XiHi7V7EZQmyvonRbRVNJPF3sBcD0jBQd8qtgGx ADAXfo3xLzUhlUoNCxZv7mkZLw+NLbE4CffMadZMaJ88rmhrhcNTIOZobmEAJGzzITSH28NVMeG zw84kDDI03j9W/Xj0mA== X-Authority-Analysis: v=2.4 cv=Ebb4hvmC c=1 sm=1 tr=0 ts=6a96ad0c cx=c_pps a=OOZaFjgC48PWsiFpTAqLcw==:117 a=OOZaFjgC48PWsiFpTAqLcw==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=VdqzKS8jKosA:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=jiCTI4zE5U7BLdzWsZGv:22 a=RD47p0oAkeU5bO7t-o6f:22 a=bA5FzAUjrTEoIiOIIUIA:9 X-Proofpoint-GUID: axVMLX_dnsatlOBQsdDiH2S2qA2OyBsh X-Proofpoint-Spam-Info: AW1haW4tMjYwOTAxMDA5NSBTYWx0ZWRfX9+Ro49KAPitJ LcV4vcOWxv0Y2nd/kQJOJT+oJlzbVwhWT+8yKxFbhMVnlq3G4etdwp19orNONeHLS1DdXhiYXo+ Vkp5rPO8kN6CJ4zLIkBoNI6V/Mq8yshGS+g/jDw6Q1J+5OiRwvx/ From: John Garry Add a queue_depth file so that the multipath dynamic queue depth can be looked up from per-path gendisk (scsi_disk) directory. Signed-off-by: John Garry --- drivers/scsi/sd.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index e8227e00defe7..7e1cdb05906f7 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -4176,9 +4176,28 @@ static ssize_t sd_mpath_numa_nodes_show(struct device *dev, } static DEVICE_ATTR(mpath_numa_nodes, 0444, sd_mpath_numa_nodes_show, NULL); +static ssize_t sd_mpath_queue_depth_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct gendisk *gd = dev_to_disk(dev); + struct scsi_disk *sdkp = gd->private_data; + struct scsi_device *sdev = sdkp->device; + struct scsi_mpath_device *scsi_mpath_dev = sdev->scsi_mpath_dev; + struct scsi_mpath_head *scsi_mpath_head = + scsi_mpath_dev->scsi_mpath_head; + struct Scsi_Host *shost = sdev->host; + + if (!mpath_qd_iopolicy(&scsi_mpath_head->iopolicy)) + return 0; + + return sysfs_emit(buf, "%d\n", atomic_read(&shost->mpath_nr_active)); +} +static DEVICE_ATTR(mpath_queue_depth, 0444, sd_mpath_queue_depth_show, NULL); + static struct attribute *sd_mpath_dev_attrs[] = { &dev_attr_mpath_dev.attr, &dev_attr_mpath_numa_nodes.attr, + &dev_attr_mpath_queue_depth.attr, NULL }; -- 2.43.7