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Fri, 8 Jan 2021 03:38:52 +0000 To: Tyrel Datwyler Subject: Re: [PATCH v2 0/5] ibmvfc: MQ preparatory locking work From: "Martin K. Petersen" Organization: Oracle Corporation Message-ID: References: <20210106201835.1053593-1-tyreld@linux.ibm.com> Date: Thu, 07 Jan 2021 22:38:48 -0500 In-Reply-To: <20210106201835.1053593-1-tyreld@linux.ibm.com> (Tyrel Datwyler's message of "Wed, 6 Jan 2021 14:18:30 -0600") Content-Type: text/plain X-Originating-IP: [138.3.200.58] X-ClientProxiedBy: DM5PR16CA0025.namprd16.prod.outlook.com (2603:10b6:4:15::11) To PH0PR10MB4759.namprd10.prod.outlook.com (2603:10b6:510:3d::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from ca-mkp.ca.oracle.com (138.3.200.58) by DM5PR16CA0025.namprd16.prod.outlook.com (2603:10b6:4:15::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3742.6 via Frontend Transport; Fri, 8 Jan 2021 03:38:51 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: a0074805-8f02-4659-718e-08d8b386eae2 X-MS-TrafficTypeDiagnostic: PH0PR10MB4437: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7691; 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This patchset introduces a genric queue with its own queue > lock and sent/free event list locks. This generic queue allows the > driver to decouple the primary queue and future subordinate queues > from the host lock reducing lock contention while also relaxing > locking for submissions and completions to simply the list lock of the > queue in question. Applied to 5.12/scsi-staging, thanks! -- Martin K. Petersen Oracle Linux Engineering