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x-originating-ip: [199.255.47.8] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 44ef5d6c-979b-466e-3f7f-08d6f3c57559 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(4618075)(2017052603328)(7193020);SRVR:SN6PR04MB4365; x-ms-traffictypediagnostic: SN6PR04MB4365: wdcipoutbound: EOP-TRUE x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6790; x-forefront-prvs: 007271867D x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(39860400002)(346002)(376002)(366004)(396003)(136003)(199004)(189003)(52536014)(91956017)(478600001)(5660300002)(476003)(446003)(33656002)(2906002)(68736007)(6246003)(54906003)(25786009)(4744005)(66476007)(66556008)(86362001)(72206003)(4326008)(6916009)(316002)(6116002)(71200400001)(6436002)(55016002)(3846002)(81166006)(81156014)(14454004)(53936002)(64756008)(305945005)(229853002)(7736002)(7416002)(74316002)(66066001)(76176011)(6506007)(256004)(7696005)(8936002)(9686003)(66946007)(53546011)(26005)(73956011)(186003)(102836004)(486006)(99286004)(76116006)(71190400001)(8676002)(66446008);DIR:OUT;SFP:1102;SCL:1;SRVR:SN6PR04MB4365;H:SN6PR04MB5231.namprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: yt7azKT5bQLAwKC6ax3o3zOPOq6ITiVfyRYQoWdSP1e++rqW4mjKWQKe38No233nlft+hFhagUrP87/QkQWGgboQ7yUKk0ExJY3WiYq+ohbFl+nUPNq74Aerc67UwZbmWlUNR+FkV7+J0DFSk5aLrLK6wdDdssMBey8Nlw/UzX3OssM4xnc5JOOpM8/Z3A9mN4lO/labH7g2H0jiKR46vSRCk3miBClVS0iBEG0dOUPUupazSTPxS3TSk9iDyYzfjTBzoPbwSGKZXpaXkztuoLuCnDieKJQW1yYqEmlZ3hHg/B0/n6tbjvKGdkd2TOcdsSy5dOJBT0SynBYSZfJyJqyNbAoOtCL9GpGC99nwrULycHCrSEZAJLWTQsi4PPgvOJhSvaaJ6MeJQ9y/thrCo7rgxieIaC/9uF5r5Cb7AV8= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: 44ef5d6c-979b-466e-3f7f-08d6f3c57559 X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Jun 2019 08:17:52.0595 (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: Naohiro.Aota1@wdc.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR04MB4365 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 2019/06/13 23:00, Josef Bacik wrote:=0A= > On Fri, Jun 07, 2019 at 10:10:11PM +0900, Naohiro Aota wrote:=0A= >> Direct write I/Os can be directed at existing extents that have already= =0A= >> been written. Such write requests are prohibited on host-managed zoned= =0A= >> block devices. So disable direct IO support for a volume with HMZONED mo= de=0A= >> enabled.=0A= >>=0A= > =0A= > That's only if we're nocow, so seems like you only need to disable DIO in= to=0A= > nocow regions with hmzoned? Thanks,=0A= > =0A= > Josef=0A= > =0A= =0A= True. And actually, I had to disable or ignore BTRFS_INODE_NODATACOW on HMZ= ONED.=0A= I'll replace this patch with that one.=0A= Thanks,=0A=