From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 62148212FAD; Mon, 24 Nov 2025 13:00:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=205.220.177.32 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763989252; cv=fail; b=fJRY+mL9nnLNNcUkZoaNoYj138xxEIqscpfPDPNA13kags9VMbVfVv+OHk8ImkCP00cUGHJRRfpb4JpqIuiHOmOoODWtZrZyaCJ2y2FcitFnHFpxfk73BVYfvztc/5ul7Z1zl1qZAS9nQR3n80iIaNi4LhnDeKAddHVyvp6Qn68= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763989252; c=relaxed/simple; bh=+rVREEqAnKgsZ+UMnk4MIXWUSVATjy7DXOFuH3W648A=; h=To:Cc:Subject:From:In-Reply-To:Message-ID:References:Date: Content-Type:MIME-Version; b=JHFYLnaeqLYAXn/PjS4mtAyWwvYf5J+07QkAfg9IQK/7Jl0Lcmk2atuqLNo8885p3dKK9KdumcvZ46cXGWeQ2VwZg9L7FQrzJ4EQSR+dwl56zsnOG3VTHvxSYq56U+9jPiRiZzCc/imzb7rq5U5VR1EE06+n06hUeRVotJxC35g= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=UXkql6Kt; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=rVxk0ZZ4; arc=fail smtp.client-ip=205.220.177.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="UXkql6Kt"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="rVxk0ZZ4" Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 5AOCVFLT1085489; Mon, 24 Nov 2025 13:00:09 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=cc :content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=corp-2025-04-25; bh=JBjBjXCXcCe7Vlhnud +Bhs63Vre3VGo0FIKLAZ6H0RQ=; b=UXkql6KtmsPGldnNfv4SyClHvJABlAvhL3 Zh4MCkqDSIZY2xG3Z6THnIndLI1LhiG3P9HyBIoYbe9223zgDLUpCcntLjYbEWr3 TyMBybGAa8C4EaxJeAqomUJ1pWXmOy/LtCUXIKvbx2lvnOSdML9M7qiyVQlzCYE+ uj/EG8hE3yhKDahDZrzrhkAZD8GU2prBuHenNupmB+dgcLltlQ4EnnB3QxM65Rpq bHlQjxC1INDIyJhVx+Ab5xnONOm6SAAduGlXILLggkjEZ26+o20jx2j9Qm8N6j9d KbImYsxD81P2MewDF6+W/UY8a6qpVX/3P6XR7KmWbFM38IXHG/iw== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 4ak811hxs4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 24 Nov 2025 13:00:09 +0000 (GMT) Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 5AOC0BWB032016; Mon, 24 Nov 2025 13:00:07 GMT Received: from bl0pr03cu003.outbound.protection.outlook.com (mail-eastusazon11012014.outbound.protection.outlook.com [52.101.53.14]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 4ak3m83109-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 24 Nov 2025 13:00:07 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=ZeWl9P2HiV8OjF13X/7nJbEsf84iU+GletxASiWEAxN/A3iM649h/AaszYC6K4iy6soONkmKqXf4dL05ALqGdR8CAIao/cHb6FPe8yc8xgSh7KIkh3jMyFVARwmEVVyFbPem0XWloNS2+kxDpQisl03OgkqUtKIazPnmD1zQwP6AyHeAzTbzshr0+D4AVLzpXvknb8F0T/Ljhq2xvu/o7GIUf2B2zTmJ4RS+REeuzF+KpkEyk62CiAOrMnILsOQlPytzowpmxakeDDLP9yUP1UxdDSUb44JFy8pkCWt4Om8EWUSxbS4mDJRwuKD37yyNmm6izFtVL8wP45x1oEiA7A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=JBjBjXCXcCe7Vlhnud+Bhs63Vre3VGo0FIKLAZ6H0RQ=; b=l0YHB+roc2Gh5MtAl6Z7GBfyowf4gMKcInc/KEV7qHgjVDwXVsku9OpHcbREr3vCo8cuV1I9GelUmwNPg/q300oi4o9WDUeorVVFearfKSe3CKZvRbNeKsIDEBGV/gXsQNQXCuJ3nHQKnrilxzA2bGEjcP7+FZM8KlWGKLO3x/rlHsTx5ec4rlfKKmPaWoqFEcDP/tl7BodT5LoSWBfUV+GvMkmenDFUl4eay92vjr4RRjKJkZ8JcmVL4H8S8fmjX51Ny26z4H0qSl+2AtVPacenCYhljMK2NP+0bOM+OUxVUfLGfKewa+kU2b/eGHq4wrBP8ROlV+62ShNW6NvSGQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=JBjBjXCXcCe7Vlhnud+Bhs63Vre3VGo0FIKLAZ6H0RQ=; b=rVxk0ZZ4WC14HXgsEa08Jv+fSNo7sfbIKS1qyII+6nGVQ1haCFiHqHUPWIU/h7zwNNonJnOJAb4RWR/ZP86as1DNdWFz8BdK8IX8qakAx/y6wzwvXWD3XoT+x4GSpbZPubf9U4K5yyBzxCtL5F9IItClV+82ZVVbQB1J8aqv2iM= Received: from CH0PR10MB5338.namprd10.prod.outlook.com (2603:10b6:610:cb::8) by CO6PR10MB5790.namprd10.prod.outlook.com (2603:10b6:303:145::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9343.17; Mon, 24 Nov 2025 13:00:01 +0000 Received: from CH0PR10MB5338.namprd10.prod.outlook.com ([fe80::5cca:2bcc:cedb:d9bf]) by CH0PR10MB5338.namprd10.prod.outlook.com ([fe80::5cca:2bcc:cedb:d9bf%6]) with mapi id 15.20.9343.016; Mon, 24 Nov 2025 12:59:59 +0000 To: Chaitanya Kulkarni Cc: axboe@kernel.dk, agk@redhat.com, snitzer@kernel.org, mpatocka@redhat.com, song@kernel.org, yukuai@fnnas.com, hch@lst.de, sagi@grimberg.me, kch@nvidia.com, jaegeuk@kernel.org, chao@kernel.org, cem@kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, dm-devel@lists.linux.dev, linux-raid@vger.kernel.org, linux-nvme@lists.infradead.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, bpf@vger.kernel.org Subject: Re: [PATCH V2 2/5] dm: ignore discard return value From: "Martin K. Petersen" In-Reply-To: <20251124025737.203571-3-ckulkarnilinux@gmail.com> (Chaitanya Kulkarni's message of "Sun, 23 Nov 2025 18:57:34 -0800") Organization: Oracle Corporation Message-ID: References: <20251124025737.203571-1-ckulkarnilinux@gmail.com> <20251124025737.203571-3-ckulkarnilinux@gmail.com> Date: Mon, 24 Nov 2025 07:59:58 -0500 Content-Type: text/plain X-ClientProxiedBy: YQBPR0101CA0317.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:c01:6c::11) To CH0PR10MB5338.namprd10.prod.outlook.com (2603:10b6:610:cb::8) Precedence: bulk X-Mailing-List: linux-raid@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH0PR10MB5338:EE_|CO6PR10MB5790:EE_ X-MS-Office365-Filtering-Correlation-Id: 138ba7d7-0671-498f-5b83-08de2b596017 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|7416014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?mAv6TPJla8B4dUiIja1PoZ2vAboJc+XZy4YN+XbERpmXG+ik002wvmAQSyMT?= =?us-ascii?Q?iLjtfKzp67sz3rntCMJwBHRadYxr1y/Bqb/RstRVsDvR27d2SLFO9xyrkFxF?= =?us-ascii?Q?RHHgxMic4YLqXjIQu9cZmdxu9wE4vi2lMMv4g/gJOrxmHtXBlXV7FoM09k9b?= =?us-ascii?Q?XfqqU/1PCGgkulvhD5JuUalCn2iAXurFBiqo/xmHsVS3HAbziMATf84s31KL?= =?us-ascii?Q?o7GL3XX7dbCpispCFTXX+hSINHnZk3AHDtlH3rxoPUw62G905horFtlmHfzR?= =?us-ascii?Q?I6WIhC+/+JLXhh/Drq2ZanzyMrkAMStXcb3DAmsFMtzjQ+oIdCMEuBp3Nf0g?= =?us-ascii?Q?D6QvNJfxqkBYqQysROOOzkzaI/Lh2tXswLbOdFxpJyO5k3oqc5NdNAVxwXGc?= =?us-ascii?Q?zBpkk45CkWLQLi0jRe+RJ4yvQn/qhr6FmiVuN/flvOtHI03zznvDoS+nBO5P?= =?us-ascii?Q?mLwnjqqByzaEVzR3h5Qx06xOqLNVXP+7i/ZZ5fvYNNho//aeVYK2eIF+Lgou?= =?us-ascii?Q?mnwGzYQHSp5gQbmX+9i6gLimF5TWtJbvKE1jeB2DI3RLDVxHjeYC2GaSgZr4?= =?us-ascii?Q?eSDfiveRaSAk/Q81H9xMXy7ChsRT5r+ey0hGSG9m2CCeYqoAu2J6V+s58DhW?= =?us-ascii?Q?jbYM6GbMYETAMC6fVir7InvWsKwVs8AzUiG9WfjTKJzvVJ3l4mqTjKzheGHw?= =?us-ascii?Q?6lLVBLWAZgmDGA0ejX4nDaw7gJv0xhpgZBb+rQRjLZYg1AHd/iPE+rzWe1pR?= =?us-ascii?Q?3yXeRPeatYzyEAo6PU8KlVuAw1ec9v65eUYHT1gTTnmWFSkscxCSt7IvJzzZ?= =?us-ascii?Q?ZlutHQPA3BCoB/3pPmM0FPlH9XqMwwXzY3hcVq011bb8ZwFvcOD/Wsg0RIOu?= =?us-ascii?Q?j8TAuYFWgyTOnAwBrkyHeNwxAAD3OEL8UUM0gTD/k2Grgy8u7e1/xJ4mEFPH?= =?us-ascii?Q?KCjXuu1v1pjXdNGphC8hoVbYoO2R2lgwG6G2POhzq28QMCAuRy1pmr3iiKcy?= =?us-ascii?Q?0aPOffTVbgkVydrKXuBVA/rC9/wrsMphqZ94IVz5HKmrgnEYK1eyUCrx9zgS?= =?us-ascii?Q?AWsseLmvfWByJZc4/QzBHozAwtUPbBeqx6oYL+g7tnro/0Q/VKQYGdRK5GtX?= =?us-ascii?Q?x3JdRu+gt0vDGovdr+4InZpv2J8hG0903dkItzcU4/haHFSxiqgaH3tNcZWX?= =?us-ascii?Q?kWCCAtYAm62Ehq2yjw8pIZ+pOlPxYHx0FjH3tHC4fWJVl87K9Tktfy6U23iu?= =?us-ascii?Q?kOtz/KR4+89dVHnQ5NbAicH7bWiRJrYo166gJVpTNzw25RzeyveRhf/fWJcS?= =?us-ascii?Q?Kxe8Y4JRNURnd7lWCqomKpAEpoieGslY06TNC8DS1nORsGHMRxjFxuFbMBuF?= =?us-ascii?Q?oZPvRIRKoMXfoX8CPvWceNjzayriCcZmvQ9Eq2CIt9et0ywhDSY/gKuvh0Ii?= =?us-ascii?Q?fHYjoqKW+imlLWDv4aA09kgGngsFalQd?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CH0PR10MB5338.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(376014)(7416014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?OYyE7eSlS9w3SrlkHLpU71YN7Xy9Tsywnd8SgqeIXwumqWN+L+hVbgKxhHBp?= =?us-ascii?Q?KcE0G2R1R2p8BdAyB1twzo/nIMujudk3Zgkax3mPUm1svNkqULSKmGgPQ0Xg?= =?us-ascii?Q?zhDwBINdXbPrvQF8TjAHK9TROzscqjjuW6LsqNgSjPRSVjRI0rDs26hKSHjk?= =?us-ascii?Q?Q28kAzgoBYF3oIlmWMaRhAuPa1Gv1oD5EJN+rj2YxfngrDSERuEW/eHdoxQx?= =?us-ascii?Q?wJ3fKFf7EcJXqMKLO6zpqA7Sb6wrOfXcLkw9PzEDM2FpED0OqODBNyC5yRAv?= =?us-ascii?Q?CPdBIo64HfTWLduS5jZLHHJUFK60M6jnpKEgN5O+krjgx5oRXK0ftrWH4nJC?= =?us-ascii?Q?ysYn6G+9viD/hHrSLgPAOGs1tWW6DWgB3bmEhUKx6/pp7KlV/7P3RV6dSVXU?= =?us-ascii?Q?9xPbzOgx4clgzgbixFMYU7R814HTAgumOJT2N5nF8Fgu3Bq6pbPskJErVj37?= =?us-ascii?Q?AnSvsLI9nzpT7J4Zeh2W3Uw79YxmrDUwkDR73N2GRZrLTrGpVzFTum9Ye2Qu?= =?us-ascii?Q?3WlAQ/GPBs7vLPIA4sZtb/fd3FyJIfb2Ev6tf+hyeFOadf+8B3ei5PIyskUf?= =?us-ascii?Q?eLQOfAJdtdxIG9wRy4rkQPOXLEkBHU7A+me3sES88G4hBR+DkZIxhOtt2Kl1?= =?us-ascii?Q?OmABMJvklYebjinPJp0BjtyPq/044ngPBqu6UHIf12vEdhzc4OsZ+FgYSzeQ?= =?us-ascii?Q?iceGg8b3E+E3/Nxthak/hHpjQH7nzgIRZXfkRYieKYrtpLDNgw3wzNPtRXby?= =?us-ascii?Q?UodEoFXbb3qGv6irLBMUjp27FTDeQ0G+GVISySR3W1yvTYBzHBQm/DMPixnv?= =?us-ascii?Q?oejdMqbgP7CPdE870mEE+y29hZMJjQwmEj/2wTOdGLEd9vI6KI8I6GN3RpIj?= =?us-ascii?Q?ufzhxwHEE4mCmGGTgCWSxkvmuMjdphF6O5f5qo6rl55+AcxqpvBnI1PyxEOq?= =?us-ascii?Q?Ql61vWMimkNlEVsGgp9kCW13IfxfIMip4as+ogp7v62Fp39FdZDce/tO7Dlm?= =?us-ascii?Q?aUAkIpS23VvwDaT7P72HA7E5IEFpjQx+GblKzaz+70luwb8RuauwBsOdb9/t?= =?us-ascii?Q?OUjwrJXlgBAU76Fd2kST320CtQnEEtRjgpvF/+2gwjsw8U34qUlCPF6bK6tO?= =?us-ascii?Q?6wvHiuL0jATy23U5ZJQEgtQx6hSZFZcLUw1t/5Ckdc6VUvUg4guRc9WMPfRk?= =?us-ascii?Q?OsFHZMDm4Exw3VwpuN2yHDru+f/FobYZXXV2O+gvBuw/g2jOcvjQB4lipI7c?= =?us-ascii?Q?bcgLrGh1anN30yZ3KbLvDwRh1DRqZBaS+v61FbI+Uk55vWQgfEqHOi0gYZho?= =?us-ascii?Q?fLNH6kOydHMzrcZYycYEwX4nEpVih/G19XrJ6vK7trksBFtK3G7J7lVJEOKG?= =?us-ascii?Q?ayGJh86zPqtqYroS6cuu2C4GA5spLhu7Ok55Z33E4D/dq9CXWfup4J2ysWSx?= =?us-ascii?Q?Tx3bPqBeXvxFf0bxHa8lfKRwIIumqq0vK7ffu8/1iYK4b8jk0PNeJRWIOBMF?= =?us-ascii?Q?tsZIdGA3TIQFoCiYW8viEXYR6T4dmVbgXa6I+W80aCOTdOStk82UfHGVWDb0?= =?us-ascii?Q?sAvt4qEHWbuLcv/IVH1z6WlkjkGlpBp+blE9n/G9rr7Fi6bvpu5Rq3FVtSmR?= =?us-ascii?Q?jA=3D=3D?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 138ba7d7-0671-498f-5b83-08de2b596017 X-MS-Exchange-CrossTenant-AuthSource: CH0PR10MB5338.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Nov 2025 12:59:59.8999 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: n7E2w3CY8e9qDnasy0VfvNNtojvW/s5pG29HxCcNb7Lm2qn/BYpu/aFT1fTSiEPEmi5JmPy5aNAfAMw80PqwRNm2vayS/6ebGsMZp31/lz8= X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO6PR10MB5790 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-24_05,2025-11-21_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 mlxlogscore=999 bulkscore=0 mlxscore=0 adultscore=0 phishscore=0 malwarescore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2510240000 definitions=main-2511240115 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTI0MDExNCBTYWx0ZWRfX50l0lWeRlP9W Q0+yYvVY6xQvSbtsDau60rT363DEXlbwMrTexWbqY3AYIyDXrc3TkLgu5a8phj5+HVFrSNJHUuv uHmCPtw3t8luALV62uoyjwhTa8I67ojj4qoeImGGZm7JviSdTgKyM9hufK/qtHlN133CmDXZjMK OPc1VeRvkbqgx3xOyuqN4r9txSmTPibq3QSaciWwfKtxOGQK1dDkSmB23tdyhjN07EaIjkHHPtv piJopaO5fcEhLJ9WaajpajEJR2KRmNdCsYs6jUOlb9lU1NHa4aa+7r1oCK1flSZ3tCSpmytpbop 0AFBELZt3/xyroonqVX0P1JtA4g+KYK3d7eOgi2uZt9bfQfbehhcq3Rv+x1avigFz6extfbahEu uUguZNSkgIXAmXCo/28QbQ67229lhg== X-Proofpoint-GUID: U4luG0fnAZ3Io3KXPSnVcRCYuPN1UhlW X-Proofpoint-ORIG-GUID: U4luG0fnAZ3Io3KXPSnVcRCYuPN1UhlW X-Authority-Analysis: v=2.4 cv=KKpXzVFo c=1 sm=1 tr=0 ts=692456d9 b=1 cx=c_pps a=WeWmnZmh0fydH62SvGsd2A==:117 a=WeWmnZmh0fydH62SvGsd2A==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=6UeiqGixMTsA:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=yPCof4ZbAAAA:8 a=pWDT8AUh1qCbmSU3YTgA:9 a=zgiPjhLxNE0A:10 Chaitanya, > __blkdev_issue_discard() always returns 0, making all error checking > at call sites dead code. > > For dm-thin change issue_discard() return type to void, in > passdown_double_checking_shared_status() remove the r assignment from > return value of the issue_discard(), for end_discard() hardcod value > of r to 0 that matches only value returned from > __blkdev_issue_discard(). > > md part is simplified to only check !discard_bio by ignoring the > __blkdev_issue_discard() value. With md and dm split: Reviewed-by: Martin K. Petersen -- Martin K. Petersen