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Mon, 12 Sep 2022 16:01:35 +0000 Received: from DM5PR10MB1466.namprd10.prod.outlook.com ([fe80::8dee:d667:f326:1d50]) by DM5PR10MB1466.namprd10.prod.outlook.com ([fe80::8dee:d667:f326:1d50%6]) with mapi id 15.20.5612.022; Mon, 12 Sep 2022 16:01:35 +0000 Message-ID: <06339cdf-ee18-9d97-65f9-3a7fba68d0bc@oracle.com> Date: Mon, 12 Sep 2022 11:01:33 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.1 Subject: Re: [PATCH v3 2/3] scsi: core: Introduce a new list for SCSI proc directory entries To: Bart Van Assche , "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, Christoph Hellwig , Ming Lei , Hannes Reinecke , John Garry , Krzysztof Kozlowski , "James E.J. Bottomley" References: <20220908233600.3043271-1-bvanassche@acm.org> <20220908233600.3043271-3-bvanassche@acm.org> Content-Language: en-US From: Mike Christie In-Reply-To: <20220908233600.3043271-3-bvanassche@acm.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: CH0PR07CA0020.namprd07.prod.outlook.com (2603:10b6:610:32::25) To DM5PR10MB1466.namprd10.prod.outlook.com (2603:10b6:3:b::7) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM5PR10MB1466:EE_|IA1PR10MB6148:EE_ X-MS-Office365-Filtering-Correlation-Id: 1ecbf324-6123-4b88-f2d0-08da94d81194 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: /kbiYlZSeOp95LgGwHA/k3G9CSJPChhhVOMUHWpqOUPyrjupHd4hwGPqIqMXkKuHGJ9Q+bd8wVaJ3+AoshJXH37i1LXZBXGkgrP79pF+NArfSmirENCjRi9JvY83DIBGwe+3fLQ91x6NsM2kesL7sm6+ynDrddCDewlinfF8CCuYKGMJsLeNxgZy/eDMLY+0FPbvlCZENRzRums6vsp3rSZJvKfVYRtikjH1l7u+XfO96U3GUxiKPeRkyczAcoZ1Tz6WoUw8gxKyLkZVdp/nUi/RW5QrNr7LyTQesa3LfJXevHWOUHZOlbw4dZjC2hNP4PLCYtgsDH807XWwFJintf8Q46VwBar6vqLwvqCL9nWO8hFDOD1c67lapzFzPL4sMKc2w7Q4QvYOybcSSaNBQ3+k6fxUTpXJ8VBvodMgTkzPkuyoX7OTSsAEla6TaYdqL6MHlMPxrxzeU09oCJubuJaSMSGtVIwvK17a/c/T4+Kos5Z2ekV1Xb+ZNEvFhmQO99LuGYpvv3NfEMEKfeSbyo6sD6qfwXX+8FhtYKNrRdKQGkORJLpTm+J3S9LBoJC6lDCCvSriPgiYY5Uyp2tIRNvJ5flCYZpyaDlo9hL/K8YqSARkTxfcUK89/hGrpIyRwwy8v1rdAUE2FScD/22QjgCGC5Hh71sqraZQhXSFMLZGgMUH5TlJbaj/VTKe0cHyTqWcSL7/1Fnwoy+qoHisXUGS+WC9dSjn78azKywvA+ypiwyTQUj62jgbH0Zhnjt1gspKU7I++cWAAoiuPiy7mwtuEuH+HK8j+4oIYPpHvUA= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM5PR10MB1466.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(136003)(376002)(39860400002)(346002)(366004)(396003)(26005)(6512007)(38100700002)(66556008)(66476007)(5660300002)(66946007)(4744005)(86362001)(8676002)(4326008)(31696002)(110136005)(6506007)(6636002)(54906003)(6486002)(36756003)(316002)(8936002)(31686004)(2906002)(186003)(2616005)(478600001)(53546011)(41300700001)(45980500001)(43740500002);DIR:OUT;SFP:1101; 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This patch changes the > time needed for looking up the proc dir pointer from O(1) into O(n). I > think this is acceptable since the number of SCSI host adapter types per > host is usually small (less than ten). > > This patch has been tested by attaching two USB storage devices to a > qemu host: > Reviewed-by: Mike Christie