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dkim=none (message not signed) header.d=none;kvack.org; dmarc=none action=none header.from=oracle.com; Received: from BLAPR10MB4835.namprd10.prod.outlook.com (2603:10b6:208:331::11) by BL0PR10MB2913.namprd10.prod.outlook.com (2603:10b6:208:31::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4219.22; Thu, 17 Jun 2021 18:45:53 +0000 Received: from BLAPR10MB4835.namprd10.prod.outlook.com ([fe80::d875:3dd7:c053:6582]) by BLAPR10MB4835.namprd10.prod.outlook.com ([fe80::d875:3dd7:c053:6582%7]) with mapi id 15.20.4242.021; Thu, 17 Jun 2021 18:45:53 +0000 From: Joao Martins To: linux-mm@kvack.org Cc: Dan Williams , Vishal Verma , Dave Jiang , Naoya Horiguchi , Matthew Wilcox , Jason Gunthorpe , John Hubbard , Jane Chu , Muchun Song , Mike Kravetz , Andrew Morton , Jonathan Corbet , nvdimm@lists.linux.dev, linux-doc@vger.kernel.org, Joao Martins Subject: [PATCH v2 11/14] device-dax: ensure dev_dax->pgmap is valid for dynamic devices Date: Thu, 17 Jun 2021 19:45:04 +0100 Message-Id: <20210617184507.3662-12-joao.m.martins@oracle.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20210617184507.3662-1-joao.m.martins@oracle.com> References: <20210617184507.3662-1-joao.m.martins@oracle.com> X-Originating-IP: [94.61.1.144] X-ClientProxiedBy: LO2P265CA0113.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:c::29) To BLAPR10MB4835.namprd10.prod.outlook.com (2603:10b6:208:331::11) X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from paddy.uk.oracle.com (94.61.1.144) by LO2P265CA0113.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:c::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.4242.16 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 99433f39-a075-409c-1269-08d931c02285 X-MS-Exchange-CrossTenant-AuthSource: BLAPR10MB4835.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jun 2021 18:45:53.5051 (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: cHotVGXCjKGjQE7eMWOa066LEv5zxpleGgbc9Z9WcLQ3VUAV/JxJiD2qSpoCmAZTGRKNwLGY1RfjL30FPTF9KgH43SP6MXaUNfQAgO0Ry7o= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR10MB2913 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=10018 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 suspectscore=0 mlxlogscore=999 spamscore=0 adultscore=0 bulkscore=0 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106170117 X-Proofpoint-GUID: N_LZLoVW262b8Nt8luDJDdwv0IteUJLm X-Proofpoint-ORIG-GUID: N_LZLoVW262b8Nt8luDJDdwv0IteUJLm Right now, only static dax regions have a valid @pgmap pointer in its struct dev_dax. Dynamic dax case however, do not. In preparation for device-dax compound pagemap support, make sure that dev_dax pgmap field is set after it has been allocated and initialized. Suggested-by: Dan Williams Signed-off-by: Joao Martins --- drivers/dax/device.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dax/device.c b/drivers/dax/device.c index 0b82159b3564..6e348b5f9d45 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -426,6 +426,8 @@ int dev_dax_probe(struct dev_dax *dev_dax) } pgmap->type = MEMORY_DEVICE_GENERIC; + dev_dax->pgmap = pgmap; + addr = devm_memremap_pages(dev, pgmap); if (IS_ERR(addr)) return PTR_ERR(addr);