From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 81002C433F5 for ; Sat, 19 Feb 2022 23:35:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232454AbiBSXf1 (ORCPT ); Sat, 19 Feb 2022 18:35:27 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:59074 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229897AbiBSXfZ (ORCPT ); Sat, 19 Feb 2022 18:35:25 -0500 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87EFD5674A; Sat, 19 Feb 2022 15:35:05 -0800 (PST) Received: from pps.filterd (m0246630.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 21JMianm019865; Sat, 19 Feb 2022 23:33:52 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=to : cc : subject : from : message-id : references : date : in-reply-to : content-type : mime-version; s=corp-2021-07-09; bh=5gFtluHCeacBaWpSGlVFYU3dJANEPvkg9ZPGSla+AVY=; b=fCT/oB4pgD3cweKLL7zdtKWQhE0wXoDAwjJv6x2o34ET/Oos7kFLtb403UCn66Z1humF P8shlPWjcrb5//VcZWXYk2hhnSJxUVhHLvwB2Hx9TnLm+KfYoCUlBtSG4jslW/j1afdu Yq8rLMHoZKayNYbxCRv6HNWkgTow+m5uj89/NMape55a0U8ldq4BYJO7AEyeQXWjA9Q0 1Sc6+DG3Rh8GayTH0b+f7853ko5d8dy9Rf+E6/iSZbUk2k/oWl7MrKeLVTCyi1GKzQGb mPJdF1X2kLW9Qg5IV8AEGxpNPUQGdtfJ3ICOZs7vlss5uzOudT/R+KyLNgUuJ8V0N5/A ag== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by mx0b-00069f02.pphosted.com with ESMTP id 3eapye1616-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 19 Feb 2022 23:33:52 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.1.2/8.16.1.2) with SMTP id 21JNOkOE053469; Sat, 19 Feb 2022 23:33:42 GMT Received: from nam12-dm6-obe.outbound.protection.outlook.com (mail-dm6nam12lp2175.outbound.protection.outlook.com [104.47.59.175]) by userp3030.oracle.com with ESMTP id 3eanns264v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 19 Feb 2022 23:33:41 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=kggRQvZqsD3OQupYIi5WZTM64pkfs+FZyTIaPsuEfu1hEP5+xca8NU6cWnGNlBFWGM6t9bdzvgd6hLciKluG6L4gOoaRQ5uG8Ai9H3EC6vb/K9yObw0zMHjAgBhZFAMzecBjCxXoMy/EUgc04i0ep0cElfyXUOctYmkCI9Mfl/ANhOG5LzBlnsOFRAW2rZHYfH/PJZwN0UE7Og0BsOgPytOWqi2GjwDwJywkPmA4CrhkGECJm9qyANgZpmTbpvBNeaT3JnN8T2rcw6TCn3XbiCtG1n43OGen1PLnKkDUbgkBROymIsWV0rHkx2YaK1dl7WPxwdpPoy0w61dsnAC10A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=5gFtluHCeacBaWpSGlVFYU3dJANEPvkg9ZPGSla+AVY=; b=oBShEb7KqNViydgeYwr8WxumZ1+/7bUrw/Kukv1TCf77NRUStYglqLpCUsZ5I6uczCA21wiTlmhWI/u/mh9sX5dMKyQZa7zmUCrGNL9gq7sStgJrIhknicTjPkk23m9dKfxCbcY2j9ITQP6htxkq1WjAqTu07VqLG3R1t4an0Ty9U75xMBT36Pj8DJw3MLWLha7DC7KbLEmax8gJ8L0N788tDYib1uGqp4le5RqjieFQX/yBWKT4c8lkBFMrjhoDNfGQYfuvgYGbvQpiJBR/M/RuQcG0SsH7eBIPeacO9wLxXwnp2VWeXtV1Hb9yUQp5GVwMM6Nq6+ALTDaSMSUxKQ== 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=5gFtluHCeacBaWpSGlVFYU3dJANEPvkg9ZPGSla+AVY=; b=LKFCrIVVZjNzAFGb32AvuTSkdcSeXsiBtBQfS0qmJzwRmiKC8uoQVVmMCAkjUaWRuaxJH2OUBDg2r9YjeWc+zAXYlaxV1PEvLqvR3eQf2Hz0GffJo8Bm3rEC1/kyQT5KLyErm6e9uUzgflTJcy4NfOXqws2dODSiDeosqLacTqo= Received: from PH0PR10MB4759.namprd10.prod.outlook.com (2603:10b6:510:3d::12) by BYAPR10MB3477.namprd10.prod.outlook.com (2603:10b6:a03:128::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4995.24; Sat, 19 Feb 2022 23:33:40 +0000 Received: from PH0PR10MB4759.namprd10.prod.outlook.com ([fe80::c9f0:b3fb:25a6:3593]) by PH0PR10MB4759.namprd10.prod.outlook.com ([fe80::c9f0:b3fb:25a6:3593%5]) with mapi id 15.20.4995.026; Sat, 19 Feb 2022 23:33:39 +0000 To: Christoph Hellwig Cc: axboe@kernel.dk, martin.petersen@oracle.com, philipp.reisner@linbit.com, lars.ellenberg@linbit.com, target-devel@vger.kernel.org, haris.iqbal@ionos.com, jinpu.wang@ionos.com, manoj@linux.ibm.com, mrochs@linux.ibm.com, ukrishn@linux.ibm.com, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, drbd-dev@lists.linbit.com, dm-devel@redhat.com Subject: Re: remove REQ_OP_WRITE_SAME v2 From: "Martin K. Petersen" Organization: Oracle Corporation Message-ID: References: <20220209082828.2629273-1-hch@lst.de> Date: Sat, 19 Feb 2022 18:33:36 -0500 In-Reply-To: <20220209082828.2629273-1-hch@lst.de> (Christoph Hellwig's message of "Wed, 9 Feb 2022 09:28:21 +0100") Content-Type: text/plain X-ClientProxiedBy: SN4PR0401CA0011.namprd04.prod.outlook.com (2603:10b6:803:21::21) To PH0PR10MB4759.namprd10.prod.outlook.com (2603:10b6:510:3d::12) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 12c5e2d5-2149-43ff-4ce5-08d9f400420f X-MS-TrafficTypeDiagnostic: BYAPR10MB3477:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR10MB4759.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(366004)(316002)(38100700002)(38350700002)(6916009)(8936002)(7416002)(4744005)(2906002)(5660300002)(86362001)(66556008)(66476007)(66946007)(8676002)(4326008)(7116003)(52116002)(6486002)(26005)(508600001)(186003)(6506007)(36916002)(6512007)(6666004);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?GmuaDF0OeU2jFbauf1UaeBYQGJzrpSe/5TcagqGaIcXHIzkWxBNKQE7fsl4j?= =?us-ascii?Q?JC/AB4/xxLjYWewQ4Vfk6zDDp44VdnutGvGGA01qJMPQj5hYFnF+ijN4sLHN?= =?us-ascii?Q?lLLKlNUZcKy04NXMbeM9m6i5hZeRVey62x9sSK7ueTLuWmVoTgNQGlqktHT6?= =?us-ascii?Q?CpWvN0s0S7MKYbN+Yf+jmVQsHnEJFfs/NIRjkoPHM1pE6WDZ0cTWpfU6gNQB?= =?us-ascii?Q?nwQ288/q2NqheAeBxc7WmCHXLVgLTMvFEO+PYvFzbPADhzcsqI02hzK73VWr?= =?us-ascii?Q?sz9IG4xcMUMMxSCx4Hh9gJMPnm3twg2MtsM9MHJYe49F+XUcemdRmD9USjc/?= =?us-ascii?Q?7FLh5EadU5EGCIzansuhB84uHQxJIsJ2tpEjRk+QzBX7tTb3HJzSAGx++gXD?= =?us-ascii?Q?KfC2ArdCJlalrn+wdXMkIqWyrMhiBNXujjpT4rsMlks5RYdHdDeXH41jxWgV?= =?us-ascii?Q?bLi5DISwktsTwI/f0BCJbvFFpKPG1aaNABhslVW/qsexY+OK+VSme3cXvSV0?= =?us-ascii?Q?E7QCuqGtsroXTyjAwmUMLvjh0F29ifualX84O1Kgg/H7PG3FWYxa8ijUNp/f?= =?us-ascii?Q?EMM0SKjWQCX9xZnH1xAgv57liXTAQt4cyQ+3UumnAXQ2LNh/Tmp9Xwt1pthF?= =?us-ascii?Q?A65a1KffMcDti4tSmo983buHTX6mCnfZekwvGimz7BtOUtpmFDXKdCd9QWIP?= =?us-ascii?Q?NAazw7pfy0lGqbHhHI5xJqmMXCdd1avEl0M0/mxZ5mNdA+8lvHFpcORVcuSb?= =?us-ascii?Q?sGUdbbas7+fL/GB6fJ1TSfgomcVJFM5KQgWafaGK6+J4hXG3yH+ue4m3Z0TA?= =?us-ascii?Q?5gQdQskJqYaRk7gQwQObZfPQTFI1bEw7D1Ss/CAS3LttOFtREvZShmCuUgib?= =?us-ascii?Q?1gmojyPoFtLDjUro3st9X8m3SqfhikusJm1GBaMG35rGXywYxOFxk31nXXTh?= =?us-ascii?Q?ndR4vBt3Z7KhLo/GZsxp03m1G/yvGZp/DNcysnm3S4D8LIPmtPmM9qx899N4?= =?us-ascii?Q?L7RTTyPhml9QTO800Yr8u08g5Vu6AYf1gSmwwDE1ikosTmAWHgRLm2ietuvJ?= =?us-ascii?Q?BmUgotmEAS/vPKwA4j+wbbWtsyo7n2LgFDrkB/igZPzQ3XoTwHdCIZnYE8pn?= =?us-ascii?Q?8YasG3Yqvk/zkMwgCE/VWs7O8FcS8YIMmutFIDbqVED8rs4fTKQOeZv5h9lN?= =?us-ascii?Q?jwJIh1fbIWo8ZkkiFHfIui5uSOoo08uqD9knR7+sd30hURtolw/rVWOFPyQU?= =?us-ascii?Q?2FRgWR03tVw91OkVg9RcC4fWAd+Jodk4/xSNZ/+Um/ih9wZGzDGhiPMyxiIX?= =?us-ascii?Q?ACR4b9vCpcR4mFawnPPx5ZG9XyeqGE/2mfdrfbjE4ydEd+8a7bxh8PLjJhvF?= =?us-ascii?Q?eEvBQ+H8LCYHJ7JYti7Rso+snMOA4H6Rql3VyrVpfhuMWTx93GkAV3a0YqNZ?= =?us-ascii?Q?YOJKPbBtqjbzqfneNfZnXUKhfoibR891moVjzTtmfW6E5W6EfhKgAWfrKWvs?= =?us-ascii?Q?j7Vfkl5x9IVxn6Usg/XvdnFlS82IuQWRpMw217nObdRwTF1ZHUwc68926ykp?= =?us-ascii?Q?Lrjd3zfoVdIdJ+C2ziT8GeXxsyndzWcz7pk03Qow+28DdPBgeGn3oVrnXovT?= =?us-ascii?Q?LUOMrDJR7Amo7XoZlLdLx8zIUe2PHM50GF2JI3uY0GKcIm20N7kiYVD+51+p?= =?us-ascii?Q?cKafBg=3D=3D?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 12c5e2d5-2149-43ff-4ce5-08d9f400420f X-MS-Exchange-CrossTenant-AuthSource: PH0PR10MB4759.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Feb 2022 23:33:39.7767 (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: AS7sAbLmsfSr5TzLBSBhZ34VD5J1R0LqwDz0G30F1ucJrVX2Fiz0b+wpGli10jGb+IgpANGTP9CGHkp+6ip5VNlxUsysLgSS2nLzm2uGMqI= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR10MB3477 X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10263 signatures=677614 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=0 adultscore=0 malwarescore=0 phishscore=0 mlxlogscore=540 mlxscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2201110000 definitions=main-2202190152 X-Proofpoint-ORIG-GUID: dWz8lW2zbgilvtGix758Y-Nv8kEVN_6g X-Proofpoint-GUID: dWz8lW2zbgilvtGix758Y-Nv8kEVN_6g Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org Christoph, > Now that we are using REQ_OP_WRITE_ZEROES for all zeroing needs in the > kernel there is very little use left for REQ_OP_WRITE_SAME. We only > have two callers left, and both just export optional protocol features > to remote systems: DRBD and the target code. Applied to 5.18/scsi-staging, thanks! -- Martin K. Petersen Oracle Linux Engineering