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Wong" Subject: Re: [PATCH v11 00/40] btrfs: zoned block device support Thread-Topic: [PATCH v11 00/40] btrfs: zoned block device support Thread-Index: AQHW2BYevkWiUhuir027m8n6NCWCFQ== Date: Tue, 12 Jan 2021 10:26:48 +0000 Message-ID: References: <20201222133805.GA6778@infradead.org> <20210112102303.GA1104499@infradead.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: infradead.org; dkim=none (message not signed) header.d=none;infradead.org; dmarc=none action=none header.from=wdc.com; x-originating-ip: [2001:a62:15c4:1c01:480d:3d08:9ab6:e110] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: f0671962-7dc7-4b19-4738-08d8b6e491dd x-ms-traffictypediagnostic: SN2PR04MB2317: x-ld-processed: b61c8803-16f3-4c35-9b17-6f65f441df86,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:5236; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 981R+L2RirkqoDUzsE9XBDFUePPFofN5EXsCgtXssYfJANnarZgTDoLg9O1Q5A2lQKclHY699idfzYEfrrdsDyyiB5XRRSpnGMzf3NCjxcDr/KYiMLbi1d8eJcct+nxiZqke9/5OWRZ2xe+Nb1gklEHxtIqNnMFE2TRiAWbl7kyGyIEB0WQPJN4FiKsudGqW5W6qsnPSa+BBQh5fMsrr8IqMWv87c0RojxaURtAEFQy1Zt7gFWAF23rx2jHW0fpVxQGkhMCES1bj4DlA3OLiHAMhRnYHqQrN4lBmWCEREjilsW5qJOwhmP2PZtDhlUpBHOZZwvV//tQuhawraqiUJelmDzAOC48ppCuiKmLQ3uGBBY0Pa1XBCN/5JMYEnoHgy8Av1vYrkmbkHkv4JgLe+g== x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SN4PR0401MB3598.namprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(366004)(498600001)(64756008)(6916009)(8676002)(66946007)(55016002)(7696005)(66476007)(186003)(66556008)(91956017)(71200400001)(66446008)(83380400001)(86362001)(52536014)(54906003)(2906002)(9686003)(6506007)(76116006)(5660300002)(53546011)(33656002)(4744005)(8936002)(4326008);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata: =?us-ascii?Q?Hv3V1OQ4wZDwO49G5+3itxrKqSMsb5McR6XypLYC3pOt1dIsc3OwPo76iMQJ?= =?us-ascii?Q?0xwvaKqHfiWyyJq/r4N2MLg0XXvPVocEWb44ALO2LPOT4G2uty+k07hOjMDr?= =?us-ascii?Q?MoatgbaRiUaOZotvE4ehew3k/im4qPSIEtTWQvR8NRR/epC2PyJGi4HmShH4?= =?us-ascii?Q?UiRSqr/O5HimLLYFrHFpdkRC8nsVl3uc7Nnk9zRZQvk6aXE2mjxozbAJiXbj?= =?us-ascii?Q?aueaMAY0ff5j37dvWeI0L6T1vWlw9i4nD3Pks7oQfyTiFJ/hPzRiBvkS8V3z?= =?us-ascii?Q?kgd8/J2TRlIx9pVm9O3OLp74GQSr7bunPjmPM8kdVUMGq9INQuCnmltwK8iS?= =?us-ascii?Q?r1nmnDSxiLY6Pu9gbp9sSA5HDLert5aRmOrwYX2Wm49RkSCjitWSJJ4fOFC/?= =?us-ascii?Q?LM3doOJ5JURrSEaCCjkgYFVe2uDF7D3N7s6MwgFwwMVxTy3cx309zpUDwkpZ?= =?us-ascii?Q?R1CJ39DoqdvhogNik12BC8RA32cZzLaY4LKI/YWzOrviJhkX6XA74YP2EGhg?= =?us-ascii?Q?nlRe2N0Cs5V9XiVv+woPD0XWfkRUcN2jmt2z933rw1IHsxK8jgprOwKqFXRe?= =?us-ascii?Q?imy90el6qnlqCukWLE24/yBX50q3h73Og0nvKh+clyrYa+pGFvceC7nPmhtI?= =?us-ascii?Q?wM4uTiaSDbuFRXXAHhddA6eQGxF50dycZLAxzopUZjPAcqxkwxWnQPmiih/E?= =?us-ascii?Q?1D4fJfyZz9+WRddllUzK2eKy2SVBxtfSAiHbR7bO1uODLZ91fX9ZgxHfAYsO?= =?us-ascii?Q?pUjjZFbJ1qlrhBrNCvzacC+1VHe/x3GH7mSzzvc9jLWV8t9IkCLhyE8A+VQi?= =?us-ascii?Q?RBV9w5djd4bvmp26stvPnH1HyGoTdT4XzqdMofD9Jaqb8LV78+cKt1NPYv62?= =?us-ascii?Q?3ZpdlQeSWSUcPaOjX1yADR27kfsZMLvg5i8Ci8bs+ECqElU1UznyAHmqH+vx?= =?us-ascii?Q?Tu27Eda3CS9sO3WtmrAWIuSG9wMeD3I1An60J1IA+uhF6VD6IZIUpLxx825W?= =?us-ascii?Q?78wvn0f+FicBHS07FCosXRP/nZdw2zhSzG2+Dr1t9sRIQ9/P6dkLykT9do5R?= =?us-ascii?Q?0j10nLEf?= 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: SN4PR0401MB3598.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: f0671962-7dc7-4b19-4738-08d8b6e491dd X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Jan 2021 10:26:48.7902 (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: zSb3vpwRhU34L14AtrVP+fYYD8jF7BkQ2MIIrMWpKhZPM5xPYCQxkDWAIJFmhSl01++mFWk1Dt/ewmQwsKSZPD8mKXbMkeZj+j0V23KI4vg= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN2PR04MB2317 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On 12/01/2021 11:23, hch@infradead.org wrote:=0A= > On Mon, Jan 11, 2021 at 10:17:53AM +0000, Johannes Thumshirn wrote:=0A= >> On 22/12/2020 14:40, Christoph Hellwig wrote:=0A= >>> I just did a very quick look, but didn't see anything (based on the=0A= >>> subjects) that deals with ITER_BVEC direct I/O. Is the support for tha= t=0A= >>> hidden somewhere?=0A= >>=0A= >> I couldn't reproduce the problem you reported and asked for a reproducer= . Probably=0A= >> the mail got lost somewhere.=0A= >>=0A= >> Do you have a reproducer for me that triggers the problem? fio with --io= engine=3Dio_uring=0A= >> didn't do the job on my end.=0A= > =0A= > I've only found this by auditing the code. But the reproducer should=0A= > be io_uring with fixed buffers, alternatively using the nvme target=0A= > driver with a btrfs file as the backend.=0A= > =0A= =0A= OK, as fio with io_uring didn't trigger, lemme check if I can trigger it wi= th=0A= the nvme target code.=0A=