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Petersen" , "wubo (T)" CC: "cleech@redhat.com" , "jejb@linux.ibm.com" , "open-iscsi@googlegroups.com" , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Ulrich Windl , Mingfangsen , "liuzhiqiang (I)" Subject: Re: [PATCH V4] scsi: avoid potential deadlock in iscsi_if_rx func Thread-Topic: [PATCH V4] scsi: avoid potential deadlock in iscsi_if_rx func Thread-Index: AdWfpPEqf8P620ByTC6DVQFqYQ7mDQPQViMDAAMLyIA= Date: Tue, 10 Dec 2019 00:40:59 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: LO2P265CA0143.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:9f::35) To MN2PR18MB3278.namprd18.prod.outlook.com (2603:10b6:208:168::12) authentication-results: spf=none (sender IP is ) smtp.mailfrom=LDuncan@suse.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [73.25.22.216] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: be5bc122-a890-4a7a-2a99-08d77d09a07a x-ms-traffictypediagnostic: MN2PR18MB3373: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; x-forefront-prvs: 02475B2A01 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(4636009)(39860400002)(366004)(136003)(346002)(376002)(396003)(189003)(199004)(229853002)(66446008)(7416002)(305945005)(2906002)(8936002)(6512007)(31686004)(81156014)(81166006)(31696002)(6486002)(316002)(86362001)(36756003)(478600001)(5660300002)(52116002)(110136005)(186003)(6506007)(26005)(53546011)(8676002)(4744005)(54906003)(2616005)(4326008)(66556008)(66476007)(66946007)(64756008)(71200400001)(71190400001);DIR:OUT;SFP:1102;SCL:1;SRVR:MN2PR18MB3373;H:MN2PR18MB3278.namprd18.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; received-spf: None (protection.outlook.com: suse.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: fRv+c/4uEgmOLOYZ8QmSSoBlxiCkj372ITurHbc2hEJ0aol5nGBjS8xssHi/QOS4q9n/H79XCCieMnI5N4DMCJjM2uDovqlmKCn019GN/EXJeb9EXNUbGCXgFu1TrZnIRqQncr00Uh+ocFB5NKvZGmx6TMYhDZ/31zE3zpQ6lf4sxKOvNI4PNfwPXxakqwsu0WjhA97sbRpboXUEro6oG7fuDab3dwY9MlmaUvcJ1/cQg8CNEP5PgsCImGB9UaIC65RLDEJ7G6OMsrzMNI+zpYPfv/01kOU4eP+oCNvBy2D6Emq27CpwRr1UAkmYquRZNwj4AD3bNRgWic1S8e2PhFHTcJipXfNJAFs+jQmWrutalz6OACQb/EeKu6Dy9SdaNdSml6/ropbW/pt5xXfNECgsHyRH7FjSOIZf+9ilRlW7LgUikCkeS5r6jXZnLMPa x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="utf-8" Content-ID: <08200F04F75D0842901DEE5CE1591F33@namprd18.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: be5bc122-a890-4a7a-2a99-08d77d09a07a X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Dec 2019 00:40:59.9531 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 856b813c-16e5-49a5-85ec-6f081e13b527 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: c0CUQFHNwptYcEuzmiYnO2F3MZCFw33tFqTgave541V14mt1lisM5rAoz4AMoHE+aXCT8IOzEXihypsTT72L+A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR18MB3373 X-OriginatorOrg: suse.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gMTIvOS8xOSAzOjExIFBNLCBNYXJ0aW4gSy4gUGV0ZXJzZW4gd3JvdGU6DQo+IA0KPiB3dWJv LA0KPiANCj4+IEluIGlzY3NpX2lmX3J4IGZ1bmMsIGFmdGVyIHJlY2VpdmluZyBvbmUgcmVxdWVz dCB0aHJvdWdoDQo+PiBpc2NzaV9pZl9yZWN2X21zZyBmdW5jLCBpc2NzaV9pZl9zZW5kX3JlcGx5 IHdpbGwgYmUgY2FsbGVkIHRvIHRyeSB0bw0KPj4gcmVwbHkgdGhlIHJlcXVlc3QgaW4gZG8tbG9v cC4gIElmIHRoZSByZXR1cm4gb2YgaXNjc2lfaWZfc2VuZF9yZXBseQ0KPj4gZnVuYyByZXR1cm4g LUVBR0FJTiBhbGwgdGhlIHRpbWUsIG9uZSBkZWFkbG9jayB3aWxsIG9jY3VyLg0KPj4NCj4+IEZv ciBleGFtcGxlLCBhIGNsaWVudCBvbmx5IHNlbmQgbXNnIHdpdGhvdXQgY2FsbGluZyByZWN2bXNn IGZ1bmMsIHRoZW4NCj4+IGl0IHdpbGwgcmVzdWx0IGluIHRoZSB3YXRjaGRvZyBzb2Z0IGxvY2t1 cC4gIFRoZSBkZXRhaWxzIGFyZSBnaXZlbiBhcw0KPj4gZm9sbG93cywNCj4gDQo+PiBTaWduZWQt b2ZmLWJ5OiBCbyBXdSA8d3VibzQwQGh1YXdlaS5jb20+DQo+PiBSZXZpZXdlZC1ieTogWmhpcWlh bmcgTGl1IDxsaXV6aGlxaWFuZzI2QGh1YXdlaS5jb20+DQo+PiBSZXZpZXdlZC1ieTogTGVlIER1 bmNhbiA8TER1bmNhbkBzdXNlLmNvbT4NCj4gDQo+IEkgaGF2ZW4ndCBzZWVuIGEgUmV2aWV3ZWQt Ynk6IGZyb20gTGVlIG9uIHRoaXMgcGF0Y2guDQo+IA0KDQpNYXJ0aW46DQoNCk15IHNpbmNlcmUg YXBvbG9naWVzLiBJIHRvbGQgd3VibyBJIGhhZCBhbHJlYWR5IHJldmlld2VkIHRoZSBwYXRjaCwg c28NCmhlIGRpZG4ndCBuZWVkIGFub3RoZXIgUmV2aWV3ZWQtYnkgZnJvbSBtZS4gSSBzZWUgSSB3 YXMgd3JvbmcuDQoNClBsZWFzZSBjb25zaWRlciBteToNCg0KUmV2aWV3ZWQtYnk6IExlZSBEdW5j YW4gPGxkdW5jYW5Ac3VzZS5jb20+DQoNCmluIHRoZSBwYXRjaCB0byBiZSByZS12ZXJpZmllZC4N Cg==