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Fri, 27 Aug 2021 03:03:36 +0000 To: Damien Le Moal Cc: "Martin K. Petersen" , Jens Axboe , "linux-block@vger.kernel.org" , "linux-scsi@vger.kernel.org" , Hannes Reinecke Subject: Re: [PATCH v5 0/5] Initial support for multi-actuator HDDs From: "Martin K. 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?Ev3I11qxg2/t9NqdfBFHEixiz6+uyPVhwabvv93BzRBUNfB7bexhYt3n9qB+?= =?us-ascii?Q?aPzPXxncdMePBZj1n6JENgUtFkbbGC6Jj0ytq1/VxlIHNaQmjEVlyLSeUYcI?= =?us-ascii?Q?MI12hFYi7TpguBNZYAMGBxlLmVIEzP7v5Wb+WVDO9lmSIv2gfAYBTW7cCoks?= =?us-ascii?Q?EYV4OKIEEvXURK2Cczh05zs8rNf6DzSJC2Hkrg7NPIrOADzBSDITPNYD02Dw?= =?us-ascii?Q?i/EdKPqWrfnWbhjQdcstS2oNrpj8BWSDZSdT4MGB674hCQ4wmBiqqAuHzH8G?= =?us-ascii?Q?qqBcQCcvZoLtOPAg/20Arla5vX2CkUKYZZaBUo9+8CcuiAUlueFhhIWWruZg?= =?us-ascii?Q?cIjzDzV43UdwyAZ3UMLqi7ERH7itnmN1LRjuMzTh7L7xMfGG1siXtzNtt4Yx?= =?us-ascii?Q?OJmoqAS3Th6e9DSyCXZ6fVkDmQ3fZCsMe0q1l6aE+wbgQxRuLeU0/oRE9Dj0?= =?us-ascii?Q?/RF8Eq1q9IhmS3kBSwGU7arkJcKa+jGSmeweUFIM7XRVSGrRfYdYNrcdJwKb?= =?us-ascii?Q?qcw7q0whX+dLC7GAEhbu3JXPsR8cu3IyyOTxggj/m4Q7/buwIZ3UnUQ3N5LG?= =?us-ascii?Q?96Zq7iMeBDJOSqdGILNF7fmz7tdEPkZ33f/YDXs/8XB148GCXi4/DMxLxvQj?= =?us-ascii?Q?ixKj+O8JqroxoFS61UdqsuonNG7i2wN4KSlroCfYOixYUwOU8piQbVyS+0EZ?= =?us-ascii?Q?1n/6A+T3LX7iMlviDNslDedsc7PzJ0P5QxFDqkdoez98rC8ki6fTV2YJGzUt?= =?us-ascii?Q?aOIeTg5QoVE79dJh1596R3iX8WCdJKkVNzrC1Bev41bVDJ0XVv30YiKhJmIF?= =?us-ascii?Q?YqLi5Reyv3OZHyDNUFnOpucwne5r0OL1+p6PjzUkNOgLUkCvIxc6EZWnDGC4?= =?us-ascii?Q?i7651y65UhEvDsZdySkWxDI06xkU1DfF5LoK5Hf8EH6iEreKeDYmv4Rn9KrZ?= =?us-ascii?Q?WltE8rLvjbPjoIo9J5qUYXAkocEyHRBiwTrQhLfsfEmBxSN86VW8sZN8c6cF?= =?us-ascii?Q?5JV6ANEK6CJGYB8FS01azNRsLJL7gvaPjP9MfH7v2pNiCvK8/tDhpB8ym2VX?= =?us-ascii?Q?u9T6+pPWphLqGJNndZcGdzmlYZRPyKY8k/KBRsP5JYF66J9/LW/mDZ1EyL46?= =?us-ascii?Q?m7SiwUP7iZKMnhXvLf0Fsl0jF6UN+QHh48zdW0OUZdbtYb1iu5Eldu/WOTjG?= =?us-ascii?Q?KJ4FZwAOIc5caNO2F8yRdj+/oO1Fp2llAqfg+ce447CUzae+qDFbsrPdKB8O?= =?us-ascii?Q?z4FNPGWtcgOGVtW5US3/DRsCc3uUjsf3mjuyGDthosi7B9vswUk+lI5lKP/N?= =?us-ascii?Q?YttAksqBAnwBlbBmOp9EAyJu?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5082b236-fb3e-4986-ff9f-08d96907436f X-MS-Exchange-CrossTenant-AuthSource: PH0PR10MB4759.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Aug 2021 03:03:36.7891 (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: vwvFlid7kHH93aGuntjkBAk1wUGhz+QmBiMIsteWDskOR+6pbC/CCrq+l51te7S16oeKvrWoW+KiQY0A8wHdnyuqkjD9WUel7MBaPnmR9ds= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR10MB4757 X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10088 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 phishscore=0 malwarescore=0 mlxscore=0 bulkscore=0 mlxlogscore=999 suspectscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108270015 X-Proofpoint-ORIG-GUID: pyg7rUbj7_kv4XAXTKF-2Kic79xAyjjV X-Proofpoint-GUID: pyg7rUbj7_kv4XAXTKF-2Kic79xAyjjV Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Damien, > I like it, but a bit long-ish. Do you think shortening to access_range > would be acceptable ? But doesn't 'access_range' imply that there are ranges that you can't access? I think 'independent' is more important and 'access' is just a clarification. > Adding independent does make everything even more obvious, but names become > rather long. Not an issue for the sysfs directory I think, but I do think it's important that the sysfs directory in particular is the full thing. It's a user-visible interface. If the internal interfaces have a shorthand I guess that's OK. > struct blk_independent_access_range { > ... > sector_t sector; > sector_t nr_sectors; > } > > is rather a long struct name. True, but presumably you'd do: struct blk_independent_access_range *iar; in a variable declaration and be done with it. So I don't think the type is a big deal. Where it becomes unwieldy is: blk_rq_independent_access_range_frobnicate(); Anyway. Running out of ideas. autonomous_range? sequestered_range? -- Martin K. Petersen Oracle Linux Engineering