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Tue, 4 Aug 2020 12:58:10 +0000 From: Johannes Thumshirn To: Nikolay Borisov , "linux-btrfs@vger.kernel.org" Subject: Re: [PATCH] btrfs: Rework error detection in init_tree_roots Thread-Topic: [PATCH] btrfs: Rework error detection in init_tree_roots Thread-Index: AQHWajFw13NbiizPok6hrYkWnsewsQ== Date: Tue, 4 Aug 2020 12:58:10 +0000 Message-ID: References: <20200804073236.6677-1-nborisov@suse.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: suse.com; dkim=none (message not signed) header.d=none;suse.com; dmarc=none action=none header.from=wdc.com; x-originating-ip: [129.253.240.72] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 85557f81-f29c-451d-ecd5-08d838760aa5 x-ms-traffictypediagnostic: SN6PR04MB3807: x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:8273; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: JIBz87VPxP4k5JH1/0gWvJn3NM75LTYDT7yfkG0Jx9O4Ie5jY5RAxqIrTbcdzRFPSC4nUZ52BBpSXmLk7FhFEYZJFHffK24haIC6Dpyx05KTLaxOZ07WSBnI+8Zhxch8TVIwlf4czWpTNsMKrUoFIl0SLav4u6l31OL6Bb82oIBPf860kLjLnZylqxYuWF+ra9Y/vYe4MDvz0Uk6JFg9+YUR4HENfEANzEUnr0FxITvEtxMNBJRon+EaN7Wkb/W5Mp6LF9v8engDOVlopb5Uxuxr22euXTjQj0MQwQ9oet4JS+vC10ycG3RgcpqPX12aewDNBKs8GPf1YuJL42FZKA== 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;SFTY:;SFS:(4636009)(366004)(86362001)(2906002)(52536014)(71200400001)(5660300002)(4744005)(110136005)(55016002)(9686003)(66446008)(66946007)(498600001)(76116006)(64756008)(66476007)(66556008)(8936002)(8676002)(7696005)(186003)(91956017)(26005)(83380400001)(33656002)(53546011)(6506007);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata: 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 x-ms-exchange-transport-forked: True 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: 85557f81-f29c-451d-ecd5-08d838760aa5 X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Aug 2020 12:58:10.7988 (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: xgjEWMeN2nRJzqnO+UK/a78PdX4JO6e28x5iZAiUFos0Y26/S8CjrEM/ypFOtpgSl4bNkzPqvDf/YZg6rffYrv1EtvRYplhzqq8qFSW3dfo= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR04MB3807 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 04/08/2020 09:32, Nikolay Borisov wrote:=0A= > @@ -2645,17 +2645,16 @@ static int __cold init_tree_roots(struct btrfs_fs= _info *fs_info)=0A= > level =3D btrfs_super_root_level(sb);=0A= > tree_root->node =3D read_tree_block(fs_info, btrfs_super_root(sb),=0A= > generation, level, NULL);=0A= > - if (IS_ERR(tree_root->node) ||=0A= > - !extent_buffer_uptodate(tree_root->node)) {=0A= > + if (IS_ERR(tree_root->node)) {=0A= > handle_error =3D true;=0A= > + ret =3D PTR_ERR(tree_root->node);=0A= > + tree_root->node =3D NULL;=0A= > + btrfs_warn(fs_info, "failed to read tree root");=0A= > + continue;=0A= =0A= [...]=0A= =0A= > btrfs_warn(fs_info, "failed to read tree root");=0A= > continue;=0A= > }=0A= =0A= Now we're duplicating the warning message. I think it's better to have two = =0A= distinct messages so we can differentiate which of the two failure cases ha= ppened.=0A= =0A= The 2nd one could be something like "tree root eb not uptodate".=0A= =0A= Otherwise looks good,=0A= Reviewed-by: Johannes Thumshirn =0A=