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Petersen" , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 20/52] scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error Thread-Topic: [PATCH AUTOSEL for 4.9 20/52] scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error Thread-Index: AQHTnRlUzFwfr3dPGUCBDFjPlxvvUg== Date: Sat, 3 Feb 2018 18:03:44 +0000 Message-ID: <20180203180303.8490-20-alexander.levin@microsoft.com> References: <20180203180303.8490-1-alexander.levin@microsoft.com> In-Reply-To: <20180203180303.8490-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;BL0PR2101MB1091;7:0QCmoTW71U7pklyOGM4kFCVAgjjkV1ybr/j8TXRxUrxrKgUDYZ4v3GihgG9rzBFcA5r9XNOMuSzO0h/nQP8LDYEMMOoZgRQV2HMjtvrwP6hy0LufaXUDauGSKC/orIYaFfYuC6zNvXB0t+zodyRjp+820uAD5H/00T2kYvobBHuFM1N8CCTBNZ02IZU3ae2cdRfWOAS+LhsOkFlAyj/EugT0OZ00ie8aigX7sSKCFqBylckirIQELv1XChj748RD x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 4db33237-5ad9-4a85-909d-08d56b30774c x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(4534165)(4627221)(201703031133081)(201702281549075)(5600026)(4604075)(3008032)(2017052603307)(7193020);SRVR:BL0PR2101MB1091; x-ms-traffictypediagnostic: BL0PR2101MB1091: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(278428928389397)(89211679590171)(146099531331640); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(61425038)(6040501)(2401047)(5005006)(8121501046)(3002001)(10201501046)(3231101)(2400082)(944501161)(93006095)(93001095)(6055026)(61426038)(61427038)(6041288)(20161123562045)(20161123560045)(20161123558120)(20161123564045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(6072148)(201708071742011);SRVR:BL0PR2101MB1091;BCL:0;PCL:0;RULEID:;SRVR:BL0PR2101MB1091; x-forefront-prvs: 05724A8921 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(396003)(39380400002)(346002)(376002)(366004)(39860400002)(199004)(189003)(86362001)(106356001)(22452003)(4326008)(97736004)(25786009)(2950100002)(5660300001)(2906002)(81156014)(105586002)(3280700002)(8676002)(8936002)(6116002)(68736007)(81166006)(3660700001)(86612001)(2900100001)(107886003)(3846002)(102836004)(1076002)(26005)(6346003)(66066001)(10090500001)(76176011)(6506007)(10290500003)(14454004)(186003)(6486002)(59450400001)(6436002)(53936002)(72206003)(7736002)(316002)(305945005)(99286004)(110136005)(54906003)(36756003)(2501003)(5250100002)(6512007)(478600001)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:BL0PR2101MB1091;H:BL0PR2101MB1027.namprd21.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;A:1;MX:1;LANG:en; authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-message-info: 3Z6l0jYPSrLL5D5ILYJW52sez6ZIry0rV/S5wa1z81ef+ZL8hs39aWFKLvaLesJkdVdYhPe7j1iWaxuRODIJcw== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4db33237-5ad9-4a85-909d-08d56b30774c X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Feb 2018 18:03:44.5026 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR2101MB1091 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Cathy Avery [ Upstream commit d1b8b2391c24751e44f618fcf86fb55d9a9247fd ] When an I/O is returned with an srb_status of SRB_STATUS_INVALID_LUN which has zero good_bytes it must be assigned an error. Otherwise the I/O will be continuously requeued and will cause a deadlock in the case where disks are being hot added and removed. sd_probe_async will wait forever for its I/O to complete while holding scsi_sd_probe_domain. Also returning the default error of DID_TARGET_FAILURE causes multipath to not retry the I/O resulting in applications receiving I/O errors before a failover can occur. Signed-off-by: Cathy Avery Signed-off-by: Long Li Reviewed-by: Stephen Hemminger Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/storvsc_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 2bf96d33428a..0dd1984e381e 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -915,10 +915,11 @@ static void storvsc_handle_error(struct vmscsi_reques= t *vm_srb, case TEST_UNIT_READY: break; default: - set_host_byte(scmnd, DID_TARGET_FAILURE); + set_host_byte(scmnd, DID_ERROR); } break; case SRB_STATUS_INVALID_LUN: + set_host_byte(scmnd, DID_NO_CONNECT); do_work =3D true; process_err_fn =3D storvsc_remove_lun; break; --=20 2.11.0