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Thu, 22 Oct 2020 16:36:23 +0000 From: Niklas Cassel To: Keith Busch CC: "linux-block@vger.kernel.org" , "axboe@kernel.dk" , Damien Le Moal Subject: Re: [PATCHv2] null_blk: use zone status for max active/open Thread-Topic: [PATCHv2] null_blk: use zone status for max active/open Thread-Index: AQHWqIqwkAV121eYrEaqkPjMkL9Cd6mj0d4A Date: Thu, 22 Oct 2020 16:36:23 +0000 Message-ID: <20201022163622.GA62838@localhost.localdomain> References: <20201022154739.1694152-1-kbusch@kernel.org> In-Reply-To: <20201022154739.1694152-1-kbusch@kernel.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=wdc.com; x-originating-ip: [85.226.244.4] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 016fcc40-47b1-48ae-e729-08d876a89d0d x-ms-traffictypediagnostic: DM6PR04MB6793: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:2043; 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charset="us-ascii" Content-ID: <296E4ECBCA9D7A42A0F050579A414EF4@namprd04.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM6PR04MB5483.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 016fcc40-47b1-48ae-e729-08d876a89d0d X-MS-Exchange-CrossTenant-originalarrivaltime: 22 Oct 2020 16:36:23.3802 (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: eABqBPmTclxiDug2bIsWkBwZZtcYtFoTNvrF92XF/kDLBYeoeSxCnZ9eQ6CZ1PDLqOOvwtCojyhZAzOPgXzkaQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR04MB6793 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Thu, Oct 22, 2020 at 08:47:39AM -0700, Keith Busch wrote: > The block layer provides special status codes when requests go beyond > the zone resource limits. Use these codes instead of the generic IOERR > for requests that exceed the max active or open limits the null_blk > device was configured with so that applications know how these special > conditions should be handled. >=20 > Cc: Damien Le Moal > Cc: Niklas Cassel > Signed-off-by: Keith Busch > --- Reviewed-by: Niklas Cassel =