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 C66C029E114; Tue, 27 Jan 2026 14:29:24 +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=1769524167; cv=fail; b=t/noQbtR7/ylPD5f5GtntRG5E9tLaQPJoQ8LUn+v5jb0cchsIgkoygMtbyNxReHfqyPZDi2VvpY31PPvdRaWzltczlaABAMyqLRMCm4loC6cUwhT9xtfyGQ+45XyXZ/r1HfvWfYL86Z2QUj94c3493gnooz88cqSWZD9H0608hk= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769524167; c=relaxed/simple; bh=gQaeX2oP5VlYSBC8cbD8ng3cKsZMlD3irb8eNlQs4G0=; h=To:Cc:Subject:From:In-Reply-To:Message-ID:References:Date: Content-Type:MIME-Version; b=HyemUGLwgxzwMxIs87M2atMSgsOb7JY9ZPaE5uZp9GKbE3F7vREQpFOl2DW85VfYxEBOfsWC0/sBKCfYgP2toW0bAYi2u0dq1iqjxWpNsxv3nP3c1MF+9Q/4PEDs0FM6gqYG5pCnp5bECD6q2/cK+7fE/Q7uKIKDMJ5ap5WT0iE= 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=bFR+sqQ/; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=aWxGQk0M; 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="bFR+sqQ/"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="aWxGQk0M" Received: from pps.filterd (m0246631.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 60RD8uqW4016066; Tue, 27 Jan 2026 14:29:15 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=TGszpbEDbeyA2tUwSj DgAY/xPb/yKOTOvC61Y8ROdTY=; b=bFR+sqQ/jkfcJifafLvnlZEnQm0yEKnqXx JlPoyy18HjBcevhp6FnvNk4agRdAdNJhmXiv2FCt9W5yXDZIQ6R0ifG9OFDbXZ9i Xi0qYQcORblEwlxFSn5aoy1i8Qm+ktN1kMftd5G+GoogxvGve/hK8igRx/72SBod XPJIhzh4BMbo7lJcnBJ4FX7P//yAIEbBlhgkegV5ojgdmc1VArclLWaD0Cz+L/wS P1flrTsTPCLCHkrHBA7nyTqNfKUCI7cdyYExfppQim04fI5BTpxcCQfNABrVCdfS p+LdL0DLq9HOH7SXRlGsmTKliC0L3UT8rTNZEMBNiGopD/NM4Ttg== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 4bxx09g4aq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 27 Jan 2026 14:29:14 +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 60RDVEKC033320; Tue, 27 Jan 2026 14:29:13 GMT Received: from ph7pr06cu001.outbound.protection.outlook.com (mail-westus3azon11010047.outbound.protection.outlook.com [52.101.201.47]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 4bvmh9ffrx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 27 Jan 2026 14:29:13 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=TEoZSaWrBJyahhyyx/j0dWiB+dY8YfcuW1j5W7tS89CzAyePEQKB8fnS/8qQ2b5lKUoJ0WwlQBWnrFvSHqQfaoruOzxPwJeUrmlh1tzpvC+lWZkwJSoH2ursEYkBAPQRmwd6fsXs1mWw+kB2YVUVi73S9PE5Mn+EcUmQmTySr7PvYgiWEx35zV4aRssu+GTssEz1Jhkz9pxjN64f/dtu/PBHCVjK6+MsRF/OEvtexbCxj/zReMvkNI2Uu3pRiIUw8fBjRKGgzweSYyIdDqF7njVKoj8b/3fckJXJ14hj3EVtvYs7rNsGFmoksObkvjvw2s23v5dedRcz6z7GQ3czQA== 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=TGszpbEDbeyA2tUwSjDgAY/xPb/yKOTOvC61Y8ROdTY=; b=BvN1qYSUb5Bo7Y2tlwYXCu2M+1qZQ58ielKFq9+odSPS7yK2yuN6NHcWl6zfVX7Ll++WdprKIHwjQ/wwgxufHdtEeeh+SRJBGkT5N0PkbDnk/1tX78tckxKsWFXqrSLKVydT2JowpkimsNlExWCes34LlJK5UaCPmyX934IVUdD1PKQE7GKmextTNWEBFPVSLBEVCpoROUuyajMEUkECyQprdwZn6arv35+iMceTBrmaFKugr1I5QiIILUyVZfKau1u60qkvxgb1N7YyK2IJfpRc4xhHpeicUGbi5fXA/pUbZEKGGO/J3tXxbDK+hXD3emCR2xN+/qcGHAnDaSBNaQ== 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=TGszpbEDbeyA2tUwSjDgAY/xPb/yKOTOvC61Y8ROdTY=; b=aWxGQk0MfzgeAN2bBxtNXbmlyS6xtFhTKChl6rZyrRm6vqbLren2Zvokbhjm5YlLaQ+I7tCIgKfAnqEHaYrIeH8i1EfhAnTqSflfEKFpuxIcnveUu7Dw3Somh6BBwoPapc8on9SnrsBw/WuGPdKvCgJdtUbdguxr9wlWkuR50JM= Received: from CH0PR10MB5338.namprd10.prod.outlook.com (2603:10b6:610:cb::8) by DS4PR10MB997670.namprd10.prod.outlook.com (2603:10b6:8:31f::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9564.7; Tue, 27 Jan 2026 14:29:07 +0000 Received: from CH0PR10MB5338.namprd10.prod.outlook.com ([fe80::e525:dd71:b002:6ad5]) by CH0PR10MB5338.namprd10.prod.outlook.com ([fe80::e525:dd71:b002:6ad5%6]) with mapi id 15.20.9542.010; Tue, 27 Jan 2026 14:29:07 +0000 To: Christoph Hellwig Cc: Jens Axboe , Christian Brauner , "Darrick J. Wong" , Carlos Maiolino , Qu Wenruo , Al Viro , linux-block@vger.kernel.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Damien Le Moal , Johannes Thumshirn , Anuj Gupta Subject: Re: [PATCH 06/15] block: add helpers to bounce buffer an iov_iter into bios From: "Martin K. Petersen" In-Reply-To: <20260126055406.1421026-7-hch@lst.de> (Christoph Hellwig's message of "Mon, 26 Jan 2026 06:53:37 +0100") Organization: Oracle Corporation Message-ID: References: <20260126055406.1421026-1-hch@lst.de> <20260126055406.1421026-7-hch@lst.de> Date: Tue, 27 Jan 2026 09:29:05 -0500 Content-Type: text/plain X-ClientProxiedBy: YQZPR01CA0138.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:c01:87::24) To CH0PR10MB5338.namprd10.prod.outlook.com (2603:10b6:610:cb::8) Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH0PR10MB5338:EE_|DS4PR10MB997670:EE_ X-MS-Office365-Filtering-Correlation-Id: 7c405381-3e5b-4228-4977-08de5db06db1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|7416014|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?KrdCiRf2Os+mdGO9UIGFH0upib6RBY3FcfBuvp7oi9+brpwmRdzW2Wzkwo3y?= =?us-ascii?Q?avw0dv/Flj61Bk4ZDbE/6qt9a7Oxz3MJLwoLadqPDomhbJ3Xitsv2CqZ/Yzw?= =?us-ascii?Q?ve7tIf6z+V9qlJyPQhCtmmCbutnONtrR1qCc9VWryeMbgKTsfJyyyI2w3QkR?= =?us-ascii?Q?lvBKltTESRPvBximDZflPxUdO2J5Y5OBrD/yaPB/C8LuREMVNo8hlU8hoVxC?= =?us-ascii?Q?8gPh1j7zvLy/+Ctn7qZjN7iPYd1LwqQH0/qNfS509HS2dsA1ugVNC53LfQzb?= =?us-ascii?Q?golSuwmw4Naxui9ASu0fBn0mAOa/iNVCQyqA3naepT0LfKg885rpoYcfMK2Z?= =?us-ascii?Q?8j1bqjgeDULr/Vc84rofDuXP6P8Sd0D+x1stY+iTYa3PRSAErXagzcvdxcBG?= =?us-ascii?Q?UusV0ZVxVF/uamAR0ETILJ7gJJ5Sc45ZFgh4xTyB6PkxkF/qZLwoJN0Szzhh?= =?us-ascii?Q?edDf6S4ACV9RS3C5sQTd6vye2ZDkJxl57vfmYjst3YUW//njeeMLKigO0EZL?= =?us-ascii?Q?HElasIX70E7Z1QWRPzsKe2q+O5wDJspAqe3Pqrsu63TXj7+Sw3tqRlxutANu?= =?us-ascii?Q?fjpX73rAmvSSDZnX98AmPAyuLONZNWHz6ILcnsNHdR+PeWWjyijoTqfHHJ6W?= =?us-ascii?Q?l4XZEwRYvF4aRY+3KCo4RZgSCWhAZdhzWf1jyooXmbZHtVjuEwKnnLRR1LKN?= =?us-ascii?Q?QnE9D+BzF5KB09syFKshZwk7ULLKV5MB4qSA/dr+h1EEjpXgvLYmQTbhE7jE?= =?us-ascii?Q?LuYszq7MB2HAlT+E2oLPkaTeL1oJPp1AyWOHLd+1HX+ZEd9JEE4dQjjArQCN?= =?us-ascii?Q?8z7nAJwWHwBBAvEoSFbtmEwvFFau0zvXJo7aFBtSheekpGdiSY7BUmyMv2nN?= =?us-ascii?Q?+vqWoMioranLqs+RxTCFJ756E4Lcc8zR0+Bmf2ev0kBsxgcDThS5vQA74g8v?= =?us-ascii?Q?RPJWZOYk/n7MjB8/4s6s5BGkGq3K8YchpDKHJd2S88bUkdO6jw5zWEs7BoEB?= =?us-ascii?Q?sy/uyfuQdePaXHBkyDte/xtenxeEmaDPG8LYZs+Rl41Dcr4GiAt9pQ6CcSJm?= =?us-ascii?Q?SOrA+Tq+O8h9+En5Gnm+dLw3eSnu9zeeuT7T6bOw6JWpRUc+gq/FTfkYpYWo?= =?us-ascii?Q?xXeADAJ8LOpfaBSTuvWvAQEIx5bHwfYUZdpEPyxdcKzeARMRhHKNLPZItol8?= =?us-ascii?Q?hM91uk5BiRakoymsEf7d1F942/U1FcOIIWhFWx4H0cds+IENPT/Quek3i9RK?= =?us-ascii?Q?11PX//wrQYCwFUgJzcouskBXpPCW/XGXiNch07xRZCCOzRCH9uNoFYHMguev?= =?us-ascii?Q?pwVzveZ1/FL4BYhy52+DAbWyNT/pI+yXaq2qDBvOU6Qm2frUOzRpdCeWhJYl?= =?us-ascii?Q?z02jOD5plaxKgwKIJvvluC8SbVtK/DUW34xW1oxv3mG7EG7DvfX+9j9jm920?= =?us-ascii?Q?zEJBhRMl5cnBKW6bqNEi9FKz3bjqqdm5grfRaAKHUkPStAQCEmBLz3Md3g+9?= =?us-ascii?Q?ufGXhskXG9s5vJ3yzKKEmC/n2ousOqAlV6GfdvYpSar1iq01UWLWYXEy2O79?= =?us-ascii?Q?bj7/aRBAgZW3R6iAcbU=3D?= 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)(1800799024)(366016)(7416014)(376014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?UqTSSKf/7g5R2uUy5//A3ttZyEY4b/ws11in56UIsAv4YuuiFAAPxngyC2Fe?= =?us-ascii?Q?ZX7rV8pfW++XCdUwtgKX+TR5pKxkunkn4TXsLWxc6tYBinPdj3aPU5h0sToi?= =?us-ascii?Q?b0i3Ke453AoB1WA7df649Rg/HGVdUWfNzNG6QMijXrreQqfRQFDNeKlZra+x?= =?us-ascii?Q?6M4iaMIIzV1WK0IvG+ePeCNC+LfEodpSVPBG4+kNAegjLfxYGUU8fmY5tr4y?= =?us-ascii?Q?/JDy9gsvuOqqdhwBOa+Ng0sXqCP0ZS8YqGgrQ3nKJi2YZvRMMBlw2Uqwnadx?= =?us-ascii?Q?wYaTbAoDJpRmSsrNHE0KDAKa97zhypOGRnTcQkFAUR+Heu5IqwzHj3KEGnpk?= =?us-ascii?Q?iF0pRUUqF4T4xlqfCqwrOn3QHO6X86e17xpW85bXmRT9wN+lVHim9zDlt3Fm?= =?us-ascii?Q?+yDobe9ImC4kqmis01nzJmGeT1Kh/VwtSW7zyjFJa3NyveePlrxyA1bzx6E9?= =?us-ascii?Q?5oBRS1xwfl4updjqsRI1VKVvFYyr3Zyn/sSU4cMuKotJ8jt4s89uvh/sDLn7?= =?us-ascii?Q?sRwfDEnzgQhnVsfhzQR5Y72SBg/afdmgFWxtYVIlePWE+lp7uyLSpWMxqLgf?= =?us-ascii?Q?U3ecvujFz+n8juTUS+CMQovCxhrQ3SUzM8KxYAAoX2S0hqZfSKbkxJxS+KGq?= =?us-ascii?Q?YQFQYqjuzrzPKfTywbAOPDgmlsdwBAkB69TR+Oki67xg7aSuaRh2aCd10GI2?= =?us-ascii?Q?o+b4Kf0YLGESdcekFi+pR3MiWPsqMI9+uAeQkmFKxfksZ7ZXVT3VngszGVJz?= =?us-ascii?Q?VXkQb70GYQVxLk2pgW0q+uvVDW0tvK0yT2KJEdysuioeHF8VCDkeDZjn72/I?= =?us-ascii?Q?wye+QcFwS3AnOtKoRcBbdtYMMYKsL0r/9ISDVz6NyRmZQjOqIF2PXrN5ilfX?= =?us-ascii?Q?A4B39NOjnTlEgVmdLZh61gKFoGIQsZP+G1ZyVsfb4XmCiPfhpZS+s1fRKbef?= =?us-ascii?Q?Yt7QUc/Pmg8aZB1KDP189TyA5PSPx4me/cUiqBZ7p3YTFWFcdgvCGtUsXkzA?= =?us-ascii?Q?5MP3Ni04JuAFdRJjWcFPK7sfxwF/ENPtT70QNq4sLLntE4mtRli7+Wpq9EFY?= =?us-ascii?Q?o5YhBqoHmV/06jcpf43HFjquZcJ4aS92tOS/zDvIiBI3A+Jf+DGVx/4sLM+x?= =?us-ascii?Q?ePHLw7siwOJmDJuBhYRMl2YqDIbrwjWeFDUbtOOIMMaLrE4Xn2DoJKRK7sgJ?= =?us-ascii?Q?9/N+p5KK7G/lgBIAp85avtYgX7lDXpd1mT/Ez3hHh/zfP7i7Epd09Gv5rrrJ?= =?us-ascii?Q?FyCO7WL5Sf8hBGPwjbE2smyOsjhDXdfmRGdG+7m/vmI1UlmJtIFKtLAmrTSH?= =?us-ascii?Q?yeKX+OQb2ap+GdDTMpftd+TmBwx4XQirg1uEtmEyfrw73hgVvoNltbQAk5A3?= =?us-ascii?Q?DJcLLScIfU4iF/sxIzc82G+7jZKcePTh7eA9bg8yOdhZvB8z9fqaHXy2kAw2?= =?us-ascii?Q?3YuDQs4ZHdhlfV3qoXoOaWExoI7isfO4BrQKpRvy3ZjDywDDlLv/FGovVlXa?= =?us-ascii?Q?u7t2ku9fEorTpL07rG5ENAOzTL9EHcreJnowy9gtVfyO7g3lbt0l609U8Op9?= =?us-ascii?Q?lZg2Bc4WwK/wfoxKITgaIMpV1bKJRXczCpFUzTxpszMiel5AvLIKUVzb3rky?= =?us-ascii?Q?VRV2c/uPgemMYwOLC+1y9Nj5vnfzGwbp9FevrJOm5RyPKnBkw5K72p7zMi6v?= =?us-ascii?Q?KQmlOXSjzjSGn42fSQC2o19WY5mkCnKAQdZ1IREC8CrEz8fILG6wF/GmBdke?= =?us-ascii?Q?7c7ni0BMIkUnLw6ltYoP7Ofi30rHku4=3D?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: n6PoxDoWCmPqAWP8oD6J5U1ek/efBIF1+cHaG3mUMZmweBMvWBorEools7XRTHKXBCMMhm2R0Cgqy+averujvU+HT1I8NpwqeiUxQRNU32dqa5hszcSwU8iPIIp1zpBR8HtjsY1yZ4z8Sq5xDtx3R8cS2wgUnxmqtkUeonJSqkFJOShSTyBLzuBQVTmN/A3iM2G2Ce3mhVyj4qTj6Jh4X5AuQVR3VOt3vTyZfiwqJ4c4le4c9xCevriUiQj/a4e0OWwnydIApbO1IH1EQAVEWRgB2m+AI51dJrpqCWgZScVQprHztGCaGycaouZ6PgleQrWwBfZW6rXf1I3BDefIsZ91bgVzUaS52bcllEWmhV0vGRQrWDZHWjUwgxa8SOE7Kv8leh4mt/BDyWzZJC4miqRwmGt4KF+Mak8FUBfMpBmk0oub2rkz5jvEd+GhQs70lSe40uxnnB2zzTa5sEgxNlY4f8byatafrxlquwj/MDTDgWuDKPo03TkGYub1Crb+eKj2E1Zg/aZUsSWuJNWssq9PwZ0Px7I/5j3z447VNjRrvjCcrwzZHqv2kwpu7RU27t5Fzd86CWv+bdufdrLot7DqzpZbs7Dr2dU4X+shz6A= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7c405381-3e5b-4228-4977-08de5db06db1 X-MS-Exchange-CrossTenant-AuthSource: CH0PR10MB5338.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jan 2026 14:29:07.0354 (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: a+PHsEcRGcoaky4KL92JVXnad8MCXlwL73WNuDKCks3g6GeDNTx5DLvcTHnrTQVj9Qn/9f5dd0LKmGOB0UDA8sBGXWb7QFPmjpqMq/y5t+M= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS4PR10MB997670 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-01-27_03,2026-01-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 bulkscore=0 mlxlogscore=929 adultscore=0 malwarescore=0 spamscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2601150000 definitions=main-2601270118 X-Proofpoint-ORIG-GUID: 7PgeuCfHW5wMo0ZT1UGhE7Qy3-U6WKiW X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTI3MDExOCBTYWx0ZWRfXw8JueAUZIAE2 3Kt1AHv8Nn1Re61C54OlaCt64mew/5O0AdBmT1tzukIhF/MfQOJdBBxmPhOE76iqfxm3esrhNpF J+tBUne17nuuAPBhrwTYMDtkrK2+RnaVcRxPVq1sU2sPecnlEIpNw0g/anAoy1IUUgDUTUIjg3d icCivyyGuSuw5iRtHi3dQAG6R0Hf8rr16GCpa3xyZx+65X0dsfGm0VphI0hHbv6i58sTM72eFuY QfuS9YGiXH/rLHIpE7uDI4e96r/13UUHb+iXr8wvE9xRoyinur50qNEqFUsH66PowpPWcNLfbxR gXVsy4wrm4U4sf/pUd01V5JKmsyQ1mTOiby5QNzpjHNOlrZfmNnJAWVlSy26Ak/zAhFlvA919l0 Xrfx/1iEUiIB9JFMCVfayQZU0kbjazCMX+wCP3EgQhOvwre3VC3dYTW8HT1ZG6kTzk7BEDgN1Je JJbsCCkcEVnZTSkHF9g== X-Authority-Analysis: v=2.4 cv=Qe5rf8bv c=1 sm=1 tr=0 ts=6978cbba 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=vUbySO9Y5rIA:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=yPCof4ZbAAAA:8 a=tZYNIdBUlepU-uXKpZUA:9 a=zZCYzV9kfG8A:10 X-Proofpoint-GUID: 7PgeuCfHW5wMo0ZT1UGhE7Qy3-U6WKiW Christoph, > Add helpers to implement bounce buffering of data into a bio to > implement direct I/O for cases where direct user access is not > possible because stable in-flight data is required. These are intended > to be used as easily as bio_iov_iter_get_pages for the zero-copy path. Reviewed-by: Martin K. Petersen -- Martin K. Petersen