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Petersen" , "linux-nvme@lists.infradead.org" , Christoph Hellwig , Keith Busch Subject: Re: [PATCH v4 6/8] zonefs: use zone write granularity as block size Thread-Topic: [PATCH v4 6/8] zonefs: use zone write granularity as block size Thread-Index: AQHW9TC8dTbXC33JOEevBZloEgFWUw== Date: Thu, 28 Jan 2021 05:17:24 +0000 Message-ID: References: <20210128044733.503606-1-damien.lemoal@wdc.com> <20210128044733.503606-7-damien.lemoal@wdc.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: wdc.com; dkim=none (message not signed) header.d=none;wdc.com; dmarc=none action=none header.from=wdc.com; x-originating-ip: [199.255.45.62] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 8cc21c79-a94b-4669-3dbe-08d8c34bff5a x-ms-traffictypediagnostic: BYAPR04MB5591: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:4502; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; 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:BYAPR04MB4965.namprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(39860400002)(346002)(366004)(376002)(396003)(136003)(4326008)(66476007)(110136005)(54906003)(71200400001)(33656002)(316002)(6506007)(4744005)(83380400001)(52536014)(66556008)(86362001)(478600001)(2906002)(9686003)(5660300002)(26005)(7696005)(55016002)(66946007)(66446008)(186003)(8936002)(76116006)(53546011)(64756008)(8676002);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata: =?us-ascii?Q?8Sb1P7nCEyl2qonN5RduF9FjFtRtKuGhPBBhkZ6GzDy9xHGWS8h1oQLIg4n+?= =?us-ascii?Q?P9MLV5oe+k8WBMjBeGLiX6QCze0uwcjcPhruOBfbMTdUeOsLvg13UfatDAqn?= =?us-ascii?Q?taOKGNg50jE3KAR6xlbF0hEiPQuIeOV1tk14wpwUcoTeNAPMe9WxFTdEygab?= =?us-ascii?Q?RP9qHSXCjrXi3CIR9kaQhKDub+DjSVsRZ+u+4wtP3kWx1ln4EhZ2KGwLI/YY?= =?us-ascii?Q?w03YCfFDlW77dm243xBeFS12/oV7SukWzbfWZoLqgoOfDKqM6kkFw1sW1gFw?= =?us-ascii?Q?8rSDt9z+El0ZhcT6QJpgrH2Uj0mh1DLLRX59Iw3iMefIyCoOwyZl1wG7+h1I?= =?us-ascii?Q?N6OaH+NPGJVJwjSPezpS4Q0V6xMwmHWJi4hUrxegMt7V80UIAA8eN3vN+osF?= =?us-ascii?Q?2GxLj4oRF8+eKnC7J9rl3mdBrkdaaodqLv/5MXlwv/eS61NSN1BKjZ1oZegC?= =?us-ascii?Q?XGAKyY/Bm341fYTpN3xmYeHV7rBjrHkopLsbDPgors45QZhd0UglMhZ57oy2?= =?us-ascii?Q?EHJ6aJek5z/cRvO+9UeVn8nFoMu3+auwD9qnKvqNmwWZJWKJZP9dkAiwxzKE?= =?us-ascii?Q?mIemZSSCuvD55sfDWNaZd1DJxzqLYk/geglzj+JU5fte7AuuYZk7CzgYLle7?= =?us-ascii?Q?DVwuuaPZGNI+kDNke3QdAomqm3t2Wt+CPhObdefN1uPhifQKXpZo7JQBvGk1?= =?us-ascii?Q?pqLzyKmDinecfySHnWEE8c7HOm+APbNdwwBOiDymzTS9dzxxbOttOJZeSV9t?= =?us-ascii?Q?+qsGjLkB4SZSeGBo+A2khDQZ9NEEkkEfRuovT2AXa+9E8OlsqA/3d8W63bAR?= =?us-ascii?Q?Q87RHs37cfg0dNbIPXd2Lmj3/rLCRNI6uUqbXS5T/tfXYLQeXu/Oycjd/sy1?= =?us-ascii?Q?bxS0TiEJKT4sNSlu92JHOV2cRsTP+7/tXLVoMlg9X1X3o+3C1sXN7hY4/vnH?= =?us-ascii?Q?rbJ3P/MHIqk1RXd5m6E9Obhq+5UJo6rWf/DjdUd6iisvCN0lXDOvg9mGR/Ob?= =?us-ascii?Q?7T2m44pgSAgyNgImlTIYyHuKSiU8BtCiWRTJo4me8Um2KIKK6QQ4AeN1mwoN?= =?us-ascii?Q?4FLcvQ7+4IRpvYAXgGAgRikvjpuNqw=3D=3D?= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR04MB4965.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8cc21c79-a94b-4669-3dbe-08d8c34bff5a X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Jan 2021 05:17:24.5843 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: Jw99Akq+VF1Y51/MpXqlyc9D/tv6nVFVIpKnnCaY9MbXIqfhkDPlEKcOXMK+s0wjYK5AObBOYiGs2xZPLYjsVIzh+LReO0m4H2v/W1Jo3bA= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR04MB5591 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 1/27/21 20:47, Damien Le Moal wrote:=0A= > Zoned block devices have different granularity constraints for write=0A= > operations into sequential zones. E.g. ZBC and ZAC devices require that= =0A= > writes be aligned to the device physical block size while NVMe ZNS=0A= > devices allow logical block size aligned write operations. To correctly= =0A= > handle such difference, use the device zone write granularity limit to=0A= > set the block size of a zonefs volume, thus allowing the smallest=0A= > possible write unit for all zoned device types.=0A= >=0A= > Signed-off-by: Damien Le Moal =0A= > Reviewed-by: Christoph Hellwig =0A= > Reviewed-by: Martin K. Petersen =0A= Looks good.=0A= =0A= Reviewed-by: Chaitanya Kulkarni =0A= =0A=