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Petersen" , Damien Le Moal CC: Damien Le Moal , Niklas Cassel , Jens Axboe , "linux-block@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: [PATCH v3 0/2] allow blk-zoned ioctls without CAP_SYS_ADMIN Thread-Topic: [PATCH v3 0/2] allow blk-zoned ioctls without CAP_SYS_ADMIN Thread-Index: AQHXYRgPtP8+uBs1gU68gsGoV+YyFg== Date: Mon, 14 Jun 2021 12:23:19 +0000 Message-ID: <20210614122303.154378-1-Niklas.Cassel@wdc.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.31.1 authentication-results: kernel.dk; dkim=none (message not signed) header.d=none;kernel.dk; dmarc=none action=none header.from=wdc.com; x-originating-ip: [85.226.244.4] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 5a01d0de-5c87-4c7e-de40-08d92f2f3213 x-ms-traffictypediagnostic: PH0PR04MB7365: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:7219; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PH0PR04MB7158.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5a01d0de-5c87-4c7e-de40-08d92f2f3213 X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Jun 2021 12:23:19.8661 (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: /xcm0WeufLpYvmlMMyqwvC8xId5+dcyx9KT7XSCg+K+lNnNi/yEuF6OrbzduIr6ACkITKEL2u6kNzvXrK2dxMw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR04MB7365 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Niklas Cassel Allow the following blk-zoned ioctls: BLKREPORTZONE, BLKRESETZONE, BLKOPENZONE, BLKCLOSEZONE, and BLKFINISHZONE to be performed without CAP_SYS_ADMIN. Neither read() nor write() requires CAP_SYS_ADMIN, and considering the close relationship between read()/write() and these ioctls, there is no reason to require CAP_SYS_ADMIN for these ioctls either. Changes since v2: -Drop the FMODE_READ check from patch 2/2. Right now it is possible to open() the device with O_WRONLY and get the zone report from that fd. Therefore adding a FMODE_READ check on BLKREPORTZONE would break existing applications. Instead, just remove the existing CAP_SYS_ADMIN check. Niklas Cassel (2): blk-zoned: allow zone management send operations without CAP_SYS_ADMIN blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN block/blk-zoned.c | 6 ------ 1 file changed, 6 deletions(-) --=20 2.31.1