Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
From:   Chaitanya Kulkarni <chaitanyak@nvidia.com>
To:     Vasily Averin <vvs@openvz.org>
CC:     "kernel@openvz.org" <kernel@openvz.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Jens Axboe <axboe@kernel.dk>,
        Christoph Hellwig <hch@infradead.org>,
        "linux-block@vger.kernel.org" <linux-block@vger.kernel.org>
Subject: Re: [PATCH v2] blk-mq: fix incorrect blk_status_t casts
Thread-Topic: [PATCH v2] blk-mq: fix incorrect blk_status_t casts
Thread-Index: AQHYaraHgqLxBKTNZky5EXzVGwWDrq0lGDyA
Date:   Wed, 18 May 2022 20:35:38 +0000
Message-ID: <eb6026ac-1616-b6e4-5708-48610eb52213@nvidia.com>
References: <YoH0/2FBC2YS9kk5@infradead.org>
 <55475ea9-5f6c-fa19-b52d-93fb89209850@openvz.org>
In-Reply-To: <55475ea9-5f6c-fa19-b52d-93fb89209850@openvz.org>
Accept-Language: en-US
Content-Language: en-US
user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
 Thunderbird/91.8.0
x-ms-exchange-antispam-messagedata-chunkcount: 2
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?OUgwOWd6UjJGeU5uRWVOV1lUdEZJTjRGOC9oalRhUHZST2lWc0dacG81eDBt?=
 =?utf-8?B?YlpwNVppY2l6T3F3MGhER3IwMW1LeER3RnRJNlV0RWl2WitpZjFwMXdrdzZZ?=
 =?utf-8?B?SUxaOTU4MUxwYWN4dWpRcUtWNzE0aWtLSzcxZm5VamFxWUFGOUtJYUdVZmd1?=
 =?utf-8?B?RVJmSlpXb2RWTDIxdGRDdnIwTmFVWjh2MXZ5aTVtNXVrOTlSMFNLM2Y1MGV5?=
 =?utf-8?B?bEIvWk1lUUNpUTVpdjYxZWFqQ3lYK2loYnBad3lNMnpibk5SangvdWhNZ1p3?=
 =?utf-8?B?SDVyNlBiZ09nSTRWbzUvZVJzdHhMSUlEU1BrOUc0RlV2SjJHUk14Y01mS0dD?=
 =?utf-8?B?ZGlWZzdLajIrc05PU0JRSWxFbUpGcytEUVZ2SUZSc3dhZU0rKzZIdDFXSENw?=
 =?utf-8?B?QVk1MzJtMTNHZ1RBM3ZLQjJuQWJhV2VXNVhmaWdhcVBtUmxxcGVIdmRxelN4?=
 =?utf-8?B?bE9UR3NxTFdmUG5VM25oNmZodFhyOG9RRUo1Uk9VdksxNy9vM1RvNFd6TFZB?=
 =?utf-8?B?REFiYnB4RnpHUkg0WCtWazd0NXE3NVBXMDZjYnlKaUtZMHlQK01hRGwwVVV4?=
 =?utf-8?B?bzlMWUFXRGcxT1BGc09uTlE1ZjFmTVk4UzVzMlVMZi9tSzVTN1pZUzJVR1FW?=
 =?utf-8?B?azhhUkRwVE1DSGhDeXJmUVhaMzR4NUxybU5yMzNQb2Yva3NCeCsvVms3MEFC?=
 =?utf-8?B?WGl1S2tGSEZnVjFsazhxakF0OGlqOVVIN0tLNDM3c05VRHVaNXNGcUtBRzJF?=
 =?utf-8?B?MlI0dHNyNlJ3ZjdDRFFNei95emNTVnpMa2w2aTdFekhmN1VTRGs1VWFSZGV4?=
 =?utf-8?B?ZkI5YytNQU9xL2VHcnlWRkVIV0pTZjFCcmUyKytFbWVSZzU4YWRaOVlHQ05m?=
 =?utf-8?B?by8yQVJqWXQyMm9WQUV4TGloekM5TVhaMVpFWEZRczRHZkF4QW10SlowOVNa?=
 =?utf-8?B?OWl4ZjJKdDlsbGl3SVUrMTkxaFhCQ2N5ZXVFNTRyZXRmOVNFTFc0Z1lMYWxF?=
 =?utf-8?B?MGtBd0VaMGRzUHFmU1p3SDNkZzcvaGdva1ZScEtSeDljTFBqc3RteUtPR0px?=
 =?utf-8?B?VDJ0anNxbzRJVC9XeDFTTGRDVk9LVUllaEEzbVdpblB0VnlkMHM4d0UrWjZT?=
 =?utf-8?B?em1LbE40ZHJNekZIT2NyeGJxY3ZwTEhoUXI3LzZackZSeHh5T1ExeTBpL3Zr?=
 =?utf-8?B?c3VqSUZOeDI2VXp3dTZPVTB0NFMxby9TbG5vTGFUNS9Qd2VpUXZhUURwQm9N?=
 =?utf-8?B?ZXBiUy9sNVZXUDNlZzRUQUpzWms3SUQxOU9zSnFLL3poSGVWOVFmMEQydWxD?=
 =?utf-8?B?QkFJNm82TTFNR3hlT2NIT2xic0NWLy9BNTJhWEVQYmZmYytqMm55SlIzeThv?=
 =?utf-8?B?Ny9iQU1QcmRSKy9kaTVhcXpBVzhySlMwS2xoSnNnOTNFVHRhZy92dXMxc3hY?=
 =?utf-8?B?clhoRzZXU21sd2xmZm9KL1lNdEN3VlZUWVdSRlFzVGw2YkdWV3RvbzY5dVJs?=
 =?utf-8?B?SWlKVXVpQlFLMDRSdUdMT1premJmdFRDRXdTN0luaVdISTU3QzFNOHdqTjF2?=
 =?utf-8?B?WFN5SngzQ0tvSWszQS92SVRuUzZ4dVpRSG5HL0tWMlZkWDNXZ1FPT1RFM3Zu?=
 =?utf-8?B?VGV2UUoxNUxYV1pPQitMbW5zS3RZMXdRbUk2dDFtZ0RKRWprVHhrZHJqWVhP?=
 =?utf-8?B?TGduUUZuRnJnVHR0SWZTREFJTFE0MWkrTmd0Sm41d25HVlE4TnZsTHVlWVh0?=
 =?utf-8?B?VmEwbUtCVitHQkloNFJSQmpiOVF1c2JEdS9TQXd2dmNIUjJlaHNDb3lTWjFQ?=
 =?utf-8?B?elk5YmRPdTRFN0svK0E5dWR6WXVmWUNqUmh6c0hlL1Q2ZHozODFvMlhSbDZV?=
 =?utf-8?B?QmpEai9RaHc0QWtsL2trVGowWjBMU2I1QXp3Q25MWVpQYmkydE5rNTI1NkZQ?=
 =?utf-8?B?Ukxwbjg1NXJ2Z0QrNTJEbXpSbnJ1RUtmQ0NtdTBkTzJWR0thQTFkTnhhTXI4?=
 =?utf-8?B?ajROK3llQSthTlJESkxTRHBFdDN1MVBDUXNuK2xIYjgvSjgvcXY2Y1FTM0Jh?=
 =?utf-8?B?MDlNMTJBVERLbVNlZDdVQmttUm9yMkVVa0xtYkIzYTZjVlZpdXVsdnYvLzdt?=
 =?utf-8?B?Zk5OWTFqWWlTY0wwZmJVUjc4T1RVRWhWR3dLbGtTZzBRbWtxVTFjTFpnd2FC?=
 =?utf-8?B?UHc4M3FDZ05YSmhjczhNWXZkNDcxNXVCQ0NyR1Z4aHdjdTZRanBCRW9haUlL?=
 =?utf-8?B?ZndCazh3VDZaaWhzUTRmV3EzNHNsZU9hWjNvYlVPSWlYc3JQaEYxTUlIY2RT?=
 =?utf-8?B?MXhjSVVDSks2Q3Vxa2QycU14QkZRZ3FvcWhYbVRzZFVrQmZScWQwOUdrdzlo?=
 =?utf-8?Q?CaELyWjM1zoHlKCW7iZtMUD8e4WO6Lg2Tp9FqpjQiSU3w?=
x-ms-exchange-antispam-messagedata-1: fBf7gYnUaNj43A==
Content-Type: text/plain; charset="utf-8"
Content-ID: <6591B8927BAE9C41B4B3ABBE65C23B43@namprd12.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-OriginatorOrg: Nvidia.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: MW2PR12MB4667.namprd12.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: aa01fbe4-7615-400c-1f45-08da390df804
X-MS-Exchange-CrossTenant-originalarrivaltime: 18 May 2022 20:35:38.4099
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: LXn627u3731de7LBsxuk8WJeAGUByUbh7LbFgSZk6CnGuj35q+RoBqclCBeOqOrx3nfn+OqJoddFjL4PziCyHw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB6065
X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
	DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,
	MAILING_LIST_MULTI,NICE_REPLY_A,RDNS_NONE,SPF_HELO_NONE,
	T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no
	version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
	lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
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