From nobody Tue Nov 26 10:42:41 2024 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 6686024A08; Sat, 19 Oct 2024 12:53:50 +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=1729342432; cv=fail; b=sLvl6ajeGM6kxQcZvoY7Cn9LkKfXmICcE9HkYeFjJUgww9RdIK+TVFG5QtVPYh7Qg4hYWppeKff02/isbUmZRbqKmXio/kZi9x3F9OoWMDIJZ9qG9Jhi1VhkRcOubB08+oJe5+JRzuOtFZuhIJ7kB719UKYbMdyvSTGlw31WdEQ= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729342432; c=relaxed/simple; bh=d+YfYbHEwj/hhNNJ0Gmuh0J3TJFkwDUl+QLfdbBcbCU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=chlC+738HKphX26VYCMnrMJv0AXfZj/tharP31IWRryJsR7lB78roOj77n/dX62SQJTaI4hkSnSIjNVVMCteWC5e8OCpYw7YPTZ/IoO4eCSB+Bv4iJAvj1bIXrmZ/FiSfzraKGmxFgygdVA9BPB25xPutPs1S764rP19VbTwj+4= 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=LKntPM/r; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=rBCfWJMW; 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="LKntPM/r"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="rBCfWJMW" Received: from pps.filterd (m0246630.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 49J7t6Fx016227; Sat, 19 Oct 2024 12:51:30 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= corp-2023-11-20; bh=8+Zx5wv887XsG/Kv67UK4U8gZ7JUuJeZT2NA7tkHJ7I=; b= LKntPM/r94mJfOHIdIvOe0s0n/9uKnCZM7kvCgbXxFTmTqk1fjcUsKlAw95QPmuq maWjDB2tm1yFwfcQ8wnxDbFk4zTMURJke16MgCV/JIXWUBU2qQ03P7OhFKf1bhzE rrhR4u1OJ+1ULzHgz4Xe/MjIEJep7EI5inoA8YdkIvHchJjJuQNL6U3kMJLEFfhq 6+dDY6VyNZiCqwOZlJRCMLREMre32hTentI1EtKtn1aMPo6hb04DBkd/gsRjDzes /FmBmP1WOtNNIizQruupg8jlZ/xRhmOyCVsdvt4LTf/km7WVBPvNlRv7Yja8I0TH VrFwypEiA7gheoS6H/lBng== Received: from iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta03.appoci.oracle.com [130.35.103.27]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 42c54589tk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 19 Oct 2024 12:51:29 +0000 (GMT) Received: from pps.filterd (iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 49J7Uvwt022635; Sat, 19 Oct 2024 12:51:29 GMT Received: from nam12-bn8-obe.outbound.protection.outlook.com (mail-bn8nam12lp2170.outbound.protection.outlook.com [104.47.55.170]) by iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 42c8esmbq9-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 19 Oct 2024 12:51:29 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=ezSIxfiyQt0PpijCgCs1KWMDPdfsPNwAw9RwkqHk4zfSGQw3bQ1D8CTdT7O0QXrT1Xamd0d7smE2R+NfEds3NaJR2yt6L269RDmhRVjbh1gW+QzPUtnb0018wwB+bcnaBYz4bfwP6Bh6AMZEZUkhOA4PbRoKmdG1YxCfb6S/PEJkngTD60p5XvkYp/mAYdXa7ojZ1RUA0HyL0YoVzh3bP0n69+LHIHDifBSV2Gm0fI8JcXaspjz+XhcYy6+0nQ1nLOT7KL8+i6cQqHGq0v8FAbru+puksFF2CaIB5U6INZBkBejABMJLaBX5GBkly5SvoXuJHzqmsfzHwHV0HBv0qg== 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=8+Zx5wv887XsG/Kv67UK4U8gZ7JUuJeZT2NA7tkHJ7I=; b=Wf0HdPXtM09Kv0FIOLMN/s6Ai/kg/v+kEzaXHNtI5q+TTtXNj2gna2X/B4eh4ss9hRLylQt8Dx3yO+sdI1wEcB0WF6E0cKcb0zSuJ5Vb6IygPxW1xFZzJM+eDqkS2+fAGsvt7272OsSMvamlNe0cJn/5mtQKYBnR7HDOI5Nxy3mKbGMTALyE3VKFWGJ3vu9lMr/kmfPQqP99okJavrvLvxCxV3CM3WVn4I6vv6+UtMRny4gx+TXmnE+8o5uo/0qQxR9c+ydPeaCDLsT/vpVlFE4tllB6pyY1eefmW6898H027b98TKif++QibNL7xXuRAURc9K+FGIuv+wV9hUCQ9A== 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=8+Zx5wv887XsG/Kv67UK4U8gZ7JUuJeZT2NA7tkHJ7I=; b=rBCfWJMWXCbQivEah32HtM+/7xUVmpS6oHOaOgU2ErIocXrjUaIlSy/ZKxWg1Vj21hmnaFb5hbaMrbHKvTICbANbMm2X0zmXNJC+cLRQqi3SVJbSQaTZhJOUULfcV6XE7aKKO5Ogqi4Ek0jqqjmWJSr5VJYGI+rZYLV3DxTBirE= Received: from DM6PR10MB4313.namprd10.prod.outlook.com (2603:10b6:5:212::20) by MW5PR10MB5874.namprd10.prod.outlook.com (2603:10b6:303:19c::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8069.26; Sat, 19 Oct 2024 12:51:27 +0000 Received: from DM6PR10MB4313.namprd10.prod.outlook.com ([fe80::4f45:f4ab:121:e088]) by DM6PR10MB4313.namprd10.prod.outlook.com ([fe80::4f45:f4ab:121:e088%5]) with mapi id 15.20.8069.020; Sat, 19 Oct 2024 12:51:26 +0000 From: John Garry To: axboe@kernel.dk, brauner@kernel.org, djwong@kernel.org, viro@zeniv.linux.org.uk, jack@suse.cz, dchinner@redhat.com, hch@lst.de, cem@kernel.org Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, hare@suse.de, martin.petersen@oracle.com, catherine.hoang@oracle.com, mcgrof@kernel.org, ritesh.list@gmail.com, ojaswin@linux.ibm.com, John Garry Subject: [PATCH v10 3/8] block: Add bdev atomic write limits helpers Date: Sat, 19 Oct 2024 12:51:08 +0000 Message-Id: <20241019125113.369994-4-john.g.garry@oracle.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20241019125113.369994-1-john.g.garry@oracle.com> References: <20241019125113.369994-1-john.g.garry@oracle.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: BL1PR13CA0311.namprd13.prod.outlook.com (2603:10b6:208:2c1::16) To DM6PR10MB4313.namprd10.prod.outlook.com (2603:10b6:5:212::20) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6PR10MB4313:EE_|MW5PR10MB5874:EE_ X-MS-Office365-Filtering-Correlation-Id: 18ee4e55-aef6-4bdc-a2b7-08dcf03cbea2 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|376014|7416014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?6fbtltYVoiwQaXy1eBJCO1R/EiZtDBLt71aXminfUxiwhB9fX/h9uyaA+Cev?= =?us-ascii?Q?mAPC4VOIYCayhSo05caaQwvUuNTVfdNDcsNG+kaPBydwJHLD14tULTgO60VL?= =?us-ascii?Q?Qa0ag5jD/p+hIPm9oBaKkQByGEVxdJWz+Vdd3Jo13FRl3l5vJgTZf8fO5gAM?= =?us-ascii?Q?z5VMBO61r1ldbaOX3Mi0ap0ir/I+V29nnCP5sCv8Rlb720tOyw5kiVJh6RPh?= =?us-ascii?Q?XfL3XfukLrpZrVVNph2P2H5dbiyHMPl4MdR2h67IJqFi3r2ryzGc4YxkOYJh?= =?us-ascii?Q?5RgFrkmod9lkB4RqkWiqTUSykerzzN8plcMExAe/78w70KbEJfA/8lyxb+iS?= =?us-ascii?Q?ytAd2cKvnXWuWX45wRyLu/jmwRPdT1U6DlaHDFKww3u9CQqlEEh/Tv8T5vzY?= =?us-ascii?Q?0D0ZGG/dkqz0f0BnUp5DvrRCNdbgraQb+ScRZkWWaPKtPsE5kIWpV2WbFUCC?= =?us-ascii?Q?/4IFaWKvt/eisNkscf0/qhqEsFX6rAW3DwLFbfjMn1tGb5azgWauHVPZwffM?= =?us-ascii?Q?FQ4zx5kuwTGD5bWRlU+ydo+iJ2jQq4zXy2x9txPv49lnrTHnzTD0j0rUdQCN?= =?us-ascii?Q?bmAAgEZeWHfm89/vJ4W+z0w1yp0SolvTS7PodJfzQys2jSV8oK9HmMYIP1J9?= =?us-ascii?Q?fKbZ4U8Y0gVXgYt7xBkANZYi1h9FRiDOFjRt86FMGOp3K2IbrroSMaRPhmRv?= =?us-ascii?Q?Z8qD47/dx98yYV+T/g0mDYuiAHsAOjcob8UYYWx3qGXlLgzAwOMdapVAUvLj?= =?us-ascii?Q?zehBm0jihkAC3ai0SJUXjlRNs8xip7uH/EizRLbGpRxC7k0lGPXEs3SmbpOT?= =?us-ascii?Q?hKeJ1eq77EXR66cTfKLDpjZnz5h+d2lEZmsXXGk9JF1Jb7Ljdk9pTQrRsIyt?= =?us-ascii?Q?ikz3xKLotfLAwpKKTkEet3gvPc5qaRGjU95DCtMnbZy8lp7BuFF+aU37VHIQ?= =?us-ascii?Q?cNrlaIW+XKKa1JI5HBnPeg654zHMCIPYSIw+8vTdIlFPMPF2RSLvJuAhQ4bU?= =?us-ascii?Q?hYeqpPeFVS/xeXUmFrCXuTpt0smQBEdMWD4ND2UfupDFYwKnyartHEynAj8e?= =?us-ascii?Q?j+ZCM945GcPdEHUQ/r7l+vQzhX5ggbt4QhVjDThY3YRoNK0QwbTQRkJh0jMA?= =?us-ascii?Q?ZEmp1Lfop1RAHosfPiRz/1WwD8VwD7B7lglPlKcK2LbLwzpFxRCu4C1zUPUz?= =?us-ascii?Q?bOkN7ccVo1rAK6/id5cjxd57U8cvsfmkLjByhgKjS/gdDP6InVOg5+tStQzq?= =?us-ascii?Q?QhFmds8YPd5LzyJDSk1ClHi2pmbd+N6nYKDSKY5vRknbqcTc5XgCyZYYPX1Z?= =?us-ascii?Q?Vv2aw9z7SPqfLZav5Aw/PtbQ?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM6PR10MB4313.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(366016)(376014)(7416014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?sQcu9FE4DuzciO5WMtW+ujvxYJyAiyjBlHMezNPiKzKh/KCe6OJMr87TglEI?= =?us-ascii?Q?7uQUlOqjCYIZoM7zNnJiO6L8DTT1zL2r6jzak1W5YU/z9FvKsk18kB5ccL5x?= =?us-ascii?Q?5ztrMFIfqsdE31gBZ4Stgi8F3ZPyi+CqZiJCUxCD1w3WoOU+cU3rCCq4zVuX?= =?us-ascii?Q?jz1uhUXVEWw0wTUepZ9a6c0j26R0kqjpNeCbvQTxdMV1j/y7BzdCBTig0k/x?= =?us-ascii?Q?peqQ8Itx69Uo30bHDldK4svbc162dz6UFy1qK4SfPFVmlp5ZL2heGLbOd7ur?= =?us-ascii?Q?wuvpzfXs3i1UC3Mee8TYiRYVm2G/aUIUel2Ez34oOoRciA6yqlHFKDHhIRU+?= =?us-ascii?Q?ToKO9MwS74j+SQbhug2Z6Lhgmp2oVqs84nsHtJlEbf2XeTotbiTt6ZX3D41R?= =?us-ascii?Q?4SC2S9SyiaEGMe3k8nR/0JrLMhqCNdN5nCFOuhZQ7+mlCiCiNmwMF5pi2Fzw?= =?us-ascii?Q?sJINMXyvZbkD91T7r//EIK59rRDCysxS0y4VhLbl+5c6hi8fPfHG23KCMsEn?= =?us-ascii?Q?MayMWj8hSOje0L743S9qDtcNNL5pPtsGK0/55W/zOuRxnhyLB4su75Mf+L8C?= =?us-ascii?Q?v5aIRIaYvfQO7K00NNsX3LAYVkzlG8iokgReolSs88VP6Xt8fTMlBXj7Hw8U?= =?us-ascii?Q?RWQHLAjFEl1ORGNTH5jVDBVFZD/paEckR1ossUHntLOo3PLubGRmneC6123P?= =?us-ascii?Q?LBLnFEynOfaMptvpiTALL1In3WBglu+MAgmbyoZMiWYKetJQfRha9ivxDo5a?= =?us-ascii?Q?oYd26GDhqLVizAKAwiPdeN5SfXoat8wUzurg7S+hU+d2okyhcVvl1+hQ4X+m?= =?us-ascii?Q?GA7ZZ85MtxdMpR3A1ENEUOspng6xk6vuDHSBLIdrm8qfhCqocJ38TOCyx+Qc?= =?us-ascii?Q?a5a6LgC3ZydNmnQBHjvk2nA3NJ0Kg9h+PcbHsiqcAjctuHJ1f1WoQqYdDKwy?= =?us-ascii?Q?jqkKpq+2X99cxB/a1OYsP5xxeAo6YjY5Q956VQaWtYN02yxqdRPzp4y7omUu?= =?us-ascii?Q?YaJgp3wmNmRckW7ERjRT5hECakQ8VkHbPYlyXJQvmpHcvi36+MT7ZSQLxUjM?= =?us-ascii?Q?490sJv6oaw7rLy/xrhc+ZNLIoYyXqSR1jaw/Q260Rse89iDp5+ttscwynocc?= =?us-ascii?Q?S/XKE+Gjz21u1ul5WcIx9A5Ay4OeCdmFhRsUlNV7wswpphbfAWg5/GVWKTEb?= =?us-ascii?Q?QcVrfyF5jiQQHnNh0Zsbj0fQNMz6fb+B/w5tHg2V/QzazCeGZKw9miinlLAo?= =?us-ascii?Q?d/qjYs3+B/co7DgajzTt1jpLLZBj/yQXgKTTrmhdVahVTsABBCRt9Xur3eg/?= =?us-ascii?Q?cs5Vfar24La5POtHgnVEVakSDOIHDjCh0W2+jCkrf8fMAPQY4odDc8o4BNwz?= =?us-ascii?Q?UURJ43r85PB28MLb5389y5qiSw9WAixQUlU2yuCja1CruiBSvQvBgJk1VFPF?= =?us-ascii?Q?gVDq5fd6sYSVcoyA0gEEZlEp714kvZk3/1At37e49mvHZMGi6Vtnqqu4cCtK?= =?us-ascii?Q?tRZTsBhmPMHg/v+nBeZbttwPDGS/JOEFlNE3qmhEswBFE16+9iJuoyU3FQUK?= =?us-ascii?Q?2epqChfvSJQibsjjKhd4rQW746cdwWl3fRJcGSj1pa1sww5KzBAVtC8VaITH?= =?us-ascii?Q?EA=3D=3D?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 9zAT18L9W+XmhJPr9Rj9uBdhR29loPKtLqqGKPrdB+NCSuXqmat6qzX1uhJY/17U8+x1YixCkBryM8/ueV2v6FWF2l+Lsc17hcri/jxHwEL27RrdspTXSEKVmxDUbcC0O1QPaeNxYEsQwsUTDQ45Gwnv/cAco55GzjaBAKy1hOI9jT6jwF+7n84gHp2xXTf7eOHc4PGtAomt6TRy5rytvwU8M4Uf4G8hyDDWwmueqlHQrNtCZ4RizcIrn3tsnJL5aJele+yPvmg4pdADWiz14eeJ6upMLQ0yR+pz4jJ50ALhWVhg9YlqZVK05yeeM0iST59zDH1LuO2teI+nZgofOiJuAuken/1whrK7Z17+jLB3tc0FGx4EBk1hMdSxZ/K6wQbPdW0Lx+KZXaiGZJ0s8x1Q1x2MS3F3eR55PmlrkTahFHtQG29B5JbS7RHmNAYbLC7/kOHLH6xU2jJnM0alsM4M15YBDEWt2jnbZzkMAQ8mC9nYzlg3RsiARNej5yZS+Pu6gHZTTBrel/cuo6EP0zcbRtd8bTfjXki49goxGdCmNdeh0m+u3xDCbokx29drd33QVICjygvNa7uv5imtPnyGlMLQ3ZvFKTxFwGTAHSc= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 18ee4e55-aef6-4bdc-a2b7-08dcf03cbea2 X-MS-Exchange-CrossTenant-AuthSource: DM6PR10MB4313.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Oct 2024 12:51:26.8679 (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: av3UFCSycamUSFi6NzJPOkOa6iwe2nUINoy3rY8BQER8fMvz17AgOiD+EV4xMjbrOmRxUESxZOK1o3NQX+/Crg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW5PR10MB5874 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-19_10,2024-10-17_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 bulkscore=0 suspectscore=0 adultscore=0 mlxlogscore=999 spamscore=0 malwarescore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2409260000 definitions=main-2410190094 X-Proofpoint-GUID: ro-5EAOiPK1PBBWgglonKvhE44iQgpg3 X-Proofpoint-ORIG-GUID: ro-5EAOiPK1PBBWgglonKvhE44iQgpg3 Content-Type: text/plain; charset="utf-8" Add helpers to get atomic write limits for a bdev, so that we don't access request_queue helpers outside the block layer. We check if the bdev can actually atomic write in these helpers, so we can avoid users missing using this check. Suggested-by: Christoph Hellwig Reviewed-by: Christoph Hellwig Reviewed-by: "Darrick J. Wong" Signed-off-by: John Garry --- include/linux/blkdev.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 50c3b959da28..c2cc3c146d74 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1674,6 +1674,22 @@ static inline bool bdev_can_atomic_write(struct bloc= k_device *bdev) return true; } =20 +static inline unsigned int +bdev_atomic_write_unit_min_bytes(struct block_device *bdev) +{ + if (!bdev_can_atomic_write(bdev)) + return 0; + return queue_atomic_write_unit_min_bytes(bdev_get_queue(bdev)); +} + +static inline unsigned int +bdev_atomic_write_unit_max_bytes(struct block_device *bdev) +{ + if (!bdev_can_atomic_write(bdev)) + return 0; + return queue_atomic_write_unit_max_bytes(bdev_get_queue(bdev)); +} + #define DEFINE_IO_COMP_BATCH(name) struct io_comp_batch name =3D { } =20 #endif /* _LINUX_BLKDEV_H */ --=20 2.31.1