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 X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32E74C4338F for ; Fri, 20 Aug 2021 11:29:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 195E761040 for ; Fri, 20 Aug 2021 11:29:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238769AbhHTL3q (ORCPT ); Fri, 20 Aug 2021 07:29:46 -0400 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]:58356 "EHLO mx0b-00069f02.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237660AbhHTL3p (ORCPT ); Fri, 20 Aug 2021 07:29:45 -0400 Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 17KBGR89016914; Fri, 20 Aug 2021 11:29:03 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : content-transfer-encoding : content-type : mime-version; s=corp-2021-07-09; bh=TDjDPNE7fIkYLkICzc/ThJDhTlBTYXaUmPQ+ss7K/8M=; b=DuSHj7agIc6xpVt5hWBrI8H2pxy1HnGG6OJI7tyvpqfUvJQzqWwRJbbji6ilOk01aXZ2 9+J2a073VeNcZ22LQMCSzRkixS++XloBeGuIDD1XtXJjLk/r2vVAdJrL7mVXcoPf9mHw /45u74A+Zq28lWhjsndzqjjtB0BQzGq+LYbjfi+0yVI43AUpDmtVmboyiw8MrDmmuOB8 6ZTfS+yqk8Ri9762LQlXn19DirQ2RLBd5CKfunaMN6qONX2B1RsYret2Yjw3Bgrg05wu HBThc7Vxn7CnlKVHQ+Z/pDl9QvZL58460lElR4vh+uoiC4PbYBsasKT8DQHBZ30QvFtU DA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : content-transfer-encoding : content-type : mime-version; s=corp-2020-01-29; bh=TDjDPNE7fIkYLkICzc/ThJDhTlBTYXaUmPQ+ss7K/8M=; b=Wi9hyRh2Uh/jpoGdYoBc9616YrM+LdeW2469f+qDRWgP73gTKm91GSYUzJ5t/TQKwbq0 DheUooYT6H5TxgIpZ8NS9QzroyPVFWSm9WgfgNwwLS2WHAEa64UChu83SeCograTPLR+ g7xEbMqRVPAd4HFosfFj3jNY+ENC5QYK/vGC52HYjsmC0MaSBv5hcid61PUg6CM9mHeH WV3dz/pgyG6j+rBNJ9IsLh6swbopa0BAb5K+Hwi+TvINQuhMcNLF6x4rxjOSAO0ejbMO cpi7H3JQy4phSis+jVGPwDL+HJ7jpNSKJb9v0/FpSykb8GHfvuWOJSQbGUprkaIr3nqk hQ== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by mx0b-00069f02.pphosted.com with ESMTP id 3aj6rfrptr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 20 Aug 2021 11:29:02 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 17KBF66I008098; Fri, 20 Aug 2021 11:29:01 GMT Received: from nam11-bn8-obe.outbound.protection.outlook.com (mail-bn8nam11lp2173.outbound.protection.outlook.com [104.47.58.173]) by aserp3030.oracle.com with ESMTP id 3ae3vncma2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 20 Aug 2021 11:29:01 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=oNDZWt/Pb0EaeTwbt6LXSQYh9dWZwiZxNKY4cVVyT7h8qO1MzCYbLpXJV67tOXScuY51+BoJ78xuEbX6vPXQRdyrAVRTpv9RosWzMpJCAAMMohvT7rCrg0vqRSn0BlfxJdo9X6PFQ0iC/pQnxA0qh3j323LDX8CclqDkz4Cfi/aN/iwTqCnp1dR7UJbvQ/8v8c2h/lSVlM+rSHHXOkgI4swCQG483NP9GxqVmkCxOPhxzqCl9ESaeVDwkWloq6GFAZ5JOCAM3r4D+zHYgBA/N4XOGELmB63e/gO+WZRmGiTzUvVt8kD8LvQBu7bMVDzu9dE784epCU9QHdcyMCG6hw== 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-SenderADCheck; bh=TDjDPNE7fIkYLkICzc/ThJDhTlBTYXaUmPQ+ss7K/8M=; b=n0T5NBQ9+uSn6IJBQ8qUNuJdl/SqYZ9kHnygGv8hGTn/HEZYxtHnI1lCzOo3C2zIHigy39n7/2OOe9Rhp1RjBWkl14MCxAxIA489erv0ia9A+EYzduS1aJ37cEqprvEmzrFv4n5DHMDPQmkp/oRnCnqvhYhTnfj1WqXAsYhvYDulmeFNcwJ4hnoDhTnuBIM3jyDkaEgj2aslKxjVpRqrt7tK0I6xuPsbugs9LaX3Mg4So2Jj28jUQP8dw/QHizgbBZYiaC2pUqz79fKjWUl9ohBMlrhF6gKJTNDDlhuPcDxq3ePYPNc7Gs8flWS7x2yb+tmpyUbqcTlcgiowIG7rSA== 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=TDjDPNE7fIkYLkICzc/ThJDhTlBTYXaUmPQ+ss7K/8M=; b=SDz9nymC1t+uclKflcJ66CeX/0b0vcrTAzO4V3zvWF5glAolJJGUrhCDIFpxtaZFnV5slAhUZvThZsLSv8mOZvB+9QZN4JW7IOt3ihXsqXhqdLJj4As7EAnGImk6qCJdC3m8lHpaIDj4FZbWSWUfXRSXdYAoJ7PO3c4tu0uJ9Ic= Authentication-Results: vger.kernel.org; dkim=none (message not signed) header.d=none;vger.kernel.org; dmarc=none action=none header.from=oracle.com; Received: from MN2PR10MB4128.namprd10.prod.outlook.com (2603:10b6:208:1d2::24) by MN2PR10MB4094.namprd10.prod.outlook.com (2603:10b6:208:11e::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4415.19; Fri, 20 Aug 2021 11:29:00 +0000 Received: from MN2PR10MB4128.namprd10.prod.outlook.com ([fe80::b813:4805:31e:d36a]) by MN2PR10MB4128.namprd10.prod.outlook.com ([fe80::b813:4805:31e:d36a%5]) with mapi id 15.20.4415.023; Fri, 20 Aug 2021 11:29:00 +0000 From: Anand Jain To: linux-btrfs@vger.kernel.org Cc: dsterba@suse.com, l@damenly.su Subject: [PATCH v3 0/4] btrf_show_devname related fixes Date: Fri, 20 Aug 2021 19:28:38 +0800 Message-Id: X-Mailer: git-send-email 2.31.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SG2PR02CA0016.apcprd02.prod.outlook.com (2603:1096:3:17::28) To MN2PR10MB4128.namprd10.prod.outlook.com (2603:10b6:208:1d2::24) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (39.109.186.25) by SG2PR02CA0016.apcprd02.prod.outlook.com (2603:1096:3:17::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4436.19 via Frontend Transport; Fri, 20 Aug 2021 11:28:58 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 4770cc9c-b423-4e3d-c919-08d963cdb469 X-MS-TrafficTypeDiagnostic: MN2PR10MB4094: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6108; 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:MN2PR10MB4128.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(39860400002)(346002)(396003)(136003)(366004)(376002)(5660300002)(956004)(44832011)(8676002)(8936002)(2616005)(478600001)(83380400001)(6916009)(6506007)(6486002)(4744005)(4326008)(316002)(2906002)(38100700002)(38350700002)(52116002)(36756003)(6512007)(86362001)(66476007)(66556008)(186003)(66946007)(6666004)(26005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?ETAdQ1os3rs5Z+Cf4liIv8Os8EXmu6RfAv9QmDIMAgE7oNME0pLXoG5C65qK?= =?us-ascii?Q?WhGBwiD1SHPjROKZQBKfHS5TehdCR+Ht0ShlQu7bVWtYmuqoaJdBXmIsfL7q?= =?us-ascii?Q?EqdeMg8r6r9YbCQMKA7F65srhDkT2TfP7RjKRL34dLQUJ98JazdfXjCnIFuq?= =?us-ascii?Q?rjzE7FS5hQpeWahLSXDGZEcZL0EVYwt0QT7QVuuje5k9Shmfo0FgN80AdI4r?= =?us-ascii?Q?vsHaYJLdq5P+N4S5Kv1eazz9bYSEFWZXr0RmCvySspUHOyqGW/D3iH3h1rxE?= =?us-ascii?Q?DrKgq5Zuvsjrv5DXDY4VflA0cV4rBNNzRxjzJR1Wg/E8aArWzin+QWOSs3ic?= =?us-ascii?Q?NlNqvAqOou9l5fOwnZBEeQM1hyH9wHtkk6NefLU9pgu37KQsEBx9zzHC5ko/?= =?us-ascii?Q?5RVsEbQl2iEYk345PlLswHe2MfJyylneOt3/Rl76jwfi720tZfDIM+92m6GF?= =?us-ascii?Q?bI6xVv2o0xz47jSiAhKIi2xSLJQ7/khLIWPAcozmE98w0Ra6o8lL+vp7JPCW?= =?us-ascii?Q?Z0PZisEIKsXhjdu8iT7sp2T4Hqp4TsVpr1fV6toYRVfcEVZwpZJ2zTkUOoA5?= =?us-ascii?Q?5vuHB4ZLpwqr1C0DnQLChvdP5TheDHVpvRjPhEutieDIqo7o8GIoWops47PO?= =?us-ascii?Q?JgkH65jelwh04edpoSUOyvqcDPfckV2PiQU49KTQFZJ2MOzlGNTEybwj1ge6?= =?us-ascii?Q?5sYqJsjvAC9RW8HSQO69GLKVrY9z1H5GBUHY/E3ETl7LkO1c+dq/+MI/nOuy?= =?us-ascii?Q?5NtkZGGzwh9OlnLdh0QwWYNDILDLnd/pYzCD363n8DTgtgqD7LjwZxTRZt/f?= =?us-ascii?Q?ysCq/nofGksqugwlw8MWGyJDvjTyJ4YK7KbBMsxtQKD1rHdymj1UeijQcD8l?= =?us-ascii?Q?HRImZY0b2bIcaNyJUYn2qAOUBBMR1hguxJXl7WAch+aNJ3gHCqX30OZFZEBk?= =?us-ascii?Q?1mu3t0BiVqLNApctjPqteRKZJlFi2mE3lZmFleVi0GHX9kP+0mBTRkWs9aX2?= =?us-ascii?Q?xr/pWdvRk22xeFH98Q8Wet0ZNlin1fvI0vyEaZo+Z4ZTmnYILOv/8sqqVIKZ?= =?us-ascii?Q?2WKrdVDs4rRTYONt8oRYXBiNHjoHbzuZXiaHWud7RfVtATmzp7PppDnqEIgO?= =?us-ascii?Q?RhHaWjN1i+Mc+o5gcC81UdNON1ZXa3jdjvHbMW3yM4yB2l2GzaRaSD8f0WX1?= =?us-ascii?Q?+tpSy/ApcS2b3jW0VV9QwGhNK0G0Xf1ftpMpLeE+bNKk2F0o8WOdOP4ykJ5r?= =?us-ascii?Q?SBBVuSysWgkKoYWvFJMO6n+vKwlB0NQqacRDNzMB3fG8x0qYZL3upgvYnFVb?= =?us-ascii?Q?5mplhGiGHUnJCN92OCz8+VqW?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4770cc9c-b423-4e3d-c919-08d963cdb469 X-MS-Exchange-CrossTenant-AuthSource: MN2PR10MB4128.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Aug 2021 11:28:59.9766 (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: 2M0O+ioAl6N2S7xiEMSm8d2iAuxYOkfhuAYLn+n3YXlSfdt00vghH2v4Df+H+VmKjjCqb8lmwyYqzQPJPMcEpg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR10MB4094 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=10081 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 adultscore=0 mlxscore=0 malwarescore=0 mlxlogscore=999 spamscore=0 bulkscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108200061 X-Proofpoint-GUID: iXXWICv_1PQbUMb64yf6oroHyqmqzfxj X-Proofpoint-ORIG-GUID: iXXWICv_1PQbUMb64yf6oroHyqmqzfxj Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org These fixes are inspired by the bug report and its discussions in the mailing list subject btrfs: traverse seed devices if fs_devices::devices is empty in show_devname v3: Fix rcu_lock in the patch 3/4 Anand Jain (4): btrfs: consolidate device_list_mutex in prepare_sprout to its parent btrfs: save latest btrfs_device instead of its block_device in fs_devices btrfs: use latest_dev in btrfs_show_devname btrfs: update latest_dev when we sprout fs/btrfs/disk-io.c | 6 +++--- fs/btrfs/extent_io.c | 2 +- fs/btrfs/inode.c | 2 +- fs/btrfs/procfs.c | 6 +++--- fs/btrfs/super.c | 26 ++++---------------------- fs/btrfs/volumes.c | 19 +++++++++++-------- fs/btrfs/volumes.h | 2 +- 7 files changed, 24 insertions(+), 39 deletions(-) -- 2.31.1 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 X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 668FAC4338F for ; Mon, 23 Aug 2021 11:32:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4EBDA61206 for ; Mon, 23 Aug 2021 11:32:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236302AbhHWLcz (ORCPT ); Mon, 23 Aug 2021 07:32:55 -0400 Received: from mx0a-00069f02.pphosted.com ([205.220.165.32]:61600 "EHLO mx0a-00069f02.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235011AbhHWLcx (ORCPT ); Mon, 23 Aug 2021 07:32:53 -0400 Received: from pps.filterd (m0246627.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.1.2/8.16.0.43) with SMTP id 17N8TQWt015809; Mon, 23 Aug 2021 11:32:03 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : content-transfer-encoding : content-type : mime-version; s=corp-2021-07-09; bh=VkYn0kcaXon6byedJO3U/1GoyT4P7k7TwzPEqaFH/UY=; b=E0dlMpKJ0aVrKc6uKWRb1sfT12lVaBGnAF3zcS53C4BrcB21VhNRX279aBt8xeddxype lw0BZ88/+ixkEIlj1MmWFlsj4U1OW6RmMyz86nd8yXayOn+RPF1AOYjNmdwTsmxaZfNj us8GSra04Ya2KC00S+Wjb4rCMhtVgBOszDIHkhNq7PHSUtudq4Gq+VcV61Vtddxdm0Kn 47D8QqPs6zFt7A60sjYTDP6JB0IVeVOkBtW6jSkSkSZpbahX/hT7SEpSxF4VSK46pkzo 9rHRVikW7RWq9wePLhlnPomcOTnRUQSP1Ra0xq0bPl2wzYNtrpd+Zv8fZcmpcyvY8ekX rQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : content-transfer-encoding : content-type : mime-version; s=corp-2020-01-29; bh=VkYn0kcaXon6byedJO3U/1GoyT4P7k7TwzPEqaFH/UY=; b=TGRXXWaqR5e2HAHbeWjDguqHLk80i2AlVBPL5fA8GLzEpih46nsDtOFT9oPqYTJHoRSg xugJYKD+6N51fKxct2zRLtIxdAQiil1RHjEE5sX3FrFqq+g/JzesKmna6QbOQRTBm+rv EAxdJ1MwqKLu7omwZrRIZAw4pxaY+51juDgcxm2DPVcu6d4qDydGzKDi1GspnCNtii+I n3QoiNpfHpbL261nymk4rrdcot+WjtqycgwdyABpPENnAHRSO/VyTZ+45CsZUAn+8Mnh UI3EF8Wm4j0dZKZcUtknDwB+2ApV6iLCGXmpf51Eq2yBcdHyvRvMAZ+gJO+Ii3tQy5wH eg== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by mx0b-00069f02.pphosted.com with ESMTP id 3akwfm17jh-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 23 Aug 2021 11:32:02 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 17NBVLxS021994; Mon, 23 Aug 2021 11:32:01 GMT Received: from nam11-co1-obe.outbound.protection.outlook.com (mail-co1nam11lp2176.outbound.protection.outlook.com [104.47.56.176]) by userp3020.oracle.com with ESMTP id 3akb8sh71r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 23 Aug 2021 11:32:01 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=JPQPIPoLSMNGhXzYwgdUKLzKne6XA7FQnc+urv5EtRft7wBhwURWg9UYURFjhceAWq+kbJJiu/Ozcx9I6xwneJK4o1E1M+SMAHzdNXFGzbQisekqofG/ETbKsqCMLp6bah7BoGnlVsUpffaERCuoM8aWynudl0b4U7h/7dp5zJbt7ZG0tvjXVAR4rS73sytUc1OVTkx2+SUUv2XXuVTB0VxOs6QPMxltaNtQ1a1i7MS5+eA68Iv3hvkJzYCucNd1GHVltBv0wSzzcn7QselXjK/x3bzKNYPRypUngNV7UFJh4demUSt2MsihQNwDETzSVsxcmp8j4wdedOh3hoVxRQ== 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-SenderADCheck; bh=VkYn0kcaXon6byedJO3U/1GoyT4P7k7TwzPEqaFH/UY=; b=noAUXtj9mjPpe81yamOUzTlvCdMVJcSZsjLX10nCl1GHvUix0HJnVoE5TLHjvaLw3o93ZOA3V4fE45OcBWwjWiVYYwgVVP8cgE1ponQtAeLIhikcF8k1z4BhkvsdOsogSrGcJo4iGYKiZHtuTF3TeXfZLcEKVmPvAnBK3Au17rqs5E2msSeIMUyKwnigw2QZFzyPgMia9sSQOvAWL1jOxctTp5+M1hAgMs2cmFmPZz7btAUB5HAv9Y4/Nmj8qX6QgYQ6Odw8FIWizSy5dYkvny/6cydrfv+ulwMeat72xMLo8vAsX32d8LFRgBpwazAK35VLu1c5j0CxfSbunqs5yg== 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=VkYn0kcaXon6byedJO3U/1GoyT4P7k7TwzPEqaFH/UY=; b=SI5AKeawAXMYhEJCwbjrjatWj6z4RTDGPrevlQsnOlMix1DCHiWqFvf/lUsrMzdu+HfD3UDXLm5fX4Viklvy9CiOYFQSP2DPWw9w/GL0s4u06Oc/DDRUfzcEawj3A5wwX32zrjSXjr4CvnshMIMDYKyAHqQkHeg8O06buFxJ+6Y= Authentication-Results: vger.kernel.org; dkim=none (message not signed) header.d=none;vger.kernel.org; dmarc=none action=none header.from=oracle.com; Received: from MN2PR10MB4128.namprd10.prod.outlook.com (2603:10b6:208:1d2::24) by MN2PR10MB4206.namprd10.prod.outlook.com (2603:10b6:208:1df::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4415.14; Mon, 23 Aug 2021 11:31:58 +0000 Received: from MN2PR10MB4128.namprd10.prod.outlook.com ([fe80::b813:4805:31e:d36a]) by MN2PR10MB4128.namprd10.prod.outlook.com ([fe80::b813:4805:31e:d36a%5]) with mapi id 15.20.4436.024; Mon, 23 Aug 2021 11:31:58 +0000 From: Anand Jain To: linux-btrfs@vger.kernel.org Cc: dsterba@suse.com, l@damenly.su Subject: [PATCH v4 0/4] btrf_show_devname related fixes Date: Mon, 23 Aug 2021 19:31:38 +0800 Message-ID: X-Mailer: git-send-email 2.31.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SG2PR01CA0142.apcprd01.prod.exchangelabs.com (2603:1096:4:8f::22) To MN2PR10MB4128.namprd10.prod.outlook.com (2603:10b6:208:1d2::24) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (39.109.186.25) by SG2PR01CA0142.apcprd01.prod.exchangelabs.com (2603:1096:4:8f::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4436.19 via Frontend Transport; Mon, 23 Aug 2021 11:31:56 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 3d6da8e4-26d0-4d8b-efd7-08d966299dcc X-MS-TrafficTypeDiagnostic: MN2PR10MB4206: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6430; 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:MN2PR10MB4128.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(136003)(346002)(39860400002)(366004)(376002)(396003)(6666004)(52116002)(66476007)(38350700002)(4744005)(6512007)(26005)(478600001)(38100700002)(6486002)(6916009)(86362001)(316002)(83380400001)(2906002)(44832011)(66946007)(8676002)(4326008)(6506007)(8936002)(66556008)(956004)(5660300002)(36756003)(186003)(2616005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?HJ0ekpjuBvJefzonytNc+E/BH5WrSb+C6d6dpg5N8oy3012h6tuSHtoRW13q?= =?us-ascii?Q?wFmEB9cizSbGKFFlMU+eIu1Z2/fQoefXPWocF+dvS2BcnLkjMfiLI5QeSfQm?= =?us-ascii?Q?FxN1/KG3DD2ebYFF7ro9i54snfE+SNq5C057O2DmuMh/TuKPle40XNQeS/Ef?= =?us-ascii?Q?9vwNq69AGtNYfG9Xq9Xv/FEq0GdMU7MBpfbdZhw5glbFtEnF2tyQbt/jiboV?= =?us-ascii?Q?Nc5UrAaly9LyG7lwPyYM/ciO7nLlPhYV78bZKlPa0LTL9V4pwr9HZOVhz0Kr?= =?us-ascii?Q?ZhQyqqoSiPaTEiI7IqzosifSsYG5vG0WFqPsChEVq5mpnW5gkl9aEIi6Zcpr?= =?us-ascii?Q?UkUEqOtEdvgI9Uthd/zDJdMsvp63UPhWE9y839QzCBmHv37ixtlXXz+FfXIA?= =?us-ascii?Q?2d8f2eR1HlJo8kbL7W42sODhUAnqDT6YOqR+QtR3czVsA19erOot9cWFzLnl?= =?us-ascii?Q?epm+WRHC9e1kgjQwmJiXLj1pp3EZdhpNlVzk2qsJ05oxN3G0LBQW5Wf786JN?= =?us-ascii?Q?lJBmTR0zYItjGsfqsngnPrZG8oGFtw+bMOWhsvei4/bKNRumEJJ5SAQVsaLa?= =?us-ascii?Q?AocmfzdssonOf9nwXNa42dKhMS7UAYuJEGM9sQ2aGLi1ge3mjxSoT3UCbobo?= =?us-ascii?Q?fuSUuQxPH6BNB+rTTNDlu4d4mnsyySPxxjRVfG5b8ZRor7l+/IkW2gt5Iprw?= =?us-ascii?Q?GH1PVRE1JHtaD4cf5FSTst7+bpASJIgvy3xOLmiP997VIgjlhneRiqNDrbhi?= =?us-ascii?Q?B330ZE4skZnPbBqT5xTb9Bdtbh8ZnQsDZHFXbtUxAoPN2VIC8o6pZSyQ8wkI?= =?us-ascii?Q?NABmB0yt/d1MOAzEpRDXtfS0Pja+8WonwqMI9ugaOm/RV7zookd+gwx8VTU7?= =?us-ascii?Q?Fjk8ql22K8UQ0NPQ2fINJeS2SbwG4Y7IudqYHg/400nhWgsFiFte4HwdsPpu?= =?us-ascii?Q?vovcnpc5cIDGzQpqLxC2m3NCa9kzTwKFRjeNE9eMzPRfUPOvtAJqvRMCYzT2?= =?us-ascii?Q?eBOTJmyUtgNRe5BgN7GtbU4sgEs1eV3s1bWpgg0TzP0n7ADE58EIPN7YorHw?= =?us-ascii?Q?l86ETKdLdZpJfs2qfWwj8rnryQs9Mzu0zp8+i05C0FHcZPdRDBumoLkc9HHw?= =?us-ascii?Q?MGun//mHrcvKwyTB+bYLyis3jDu+Afn9uyyQQZBLl5y9BG5op+aUN1YRrqlY?= =?us-ascii?Q?G+ZHNCHurTHS1fu3Aud80IrHg0EdCHnbYA+EFlYbwpL4glVkuf9XqQAsSXvn?= =?us-ascii?Q?MbWkMe37OEH7F9JznJmRtjBikqds97gkAIfB48iDAU5sUxA8a4EVOzS+6P6U?= =?us-ascii?Q?Q71gJjoLGnAXgv4VFSlalTzA?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3d6da8e4-26d0-4d8b-efd7-08d966299dcc X-MS-Exchange-CrossTenant-AuthSource: MN2PR10MB4128.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Aug 2021 11:31:58.0585 (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: WvewP9J5b4UsLaBigPyQ1q+R4ruuM+2zMqnRviNw+jO1CVXBsgRBrWN3UdtQNrKaEBHEQCPidmzXjBoHwquh4g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR10MB4206 X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10084 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 phishscore=0 spamscore=0 bulkscore=0 mlxlogscore=999 malwarescore=0 adultscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108230077 X-Proofpoint-ORIG-GUID: KQCuP5IKUuqQCOqIDaaOlAZG1etAI6Zj X-Proofpoint-GUID: KQCuP5IKUuqQCOqIDaaOlAZG1etAI6Zj Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Message-ID: <20210823113138.jOljK3KLS8c1v1kFdbAV_tpEHFy5LjD3UB6FOO8_EtI@z> These fixes are inspired by the bug report and its discussions in the mailing list subject btrfs: traverse seed devices if fs_devices::devices is empty in show_devname And depends on the patch [PATCH v2] btrfs: fix lockdep warning while mounting sprout fs in the ML v4: Fix unrelated changes in 2/4 v3: Fix rcu_lock in the patch 3/4 Anand Jain (4): btrfs: consolidate device_list_mutex in prepare_sprout to its parent btrfs: save latest btrfs_device instead of its block_device in fs_devices btrfs: use latest_dev in btrfs_show_devname btrfs: update latest_dev when we sprout fs/btrfs/disk-io.c | 6 +++--- fs/btrfs/extent_io.c | 2 +- fs/btrfs/inode.c | 2 +- fs/btrfs/procfs.c | 6 +++--- fs/btrfs/super.c | 26 ++++---------------------- fs/btrfs/volumes.c | 19 +++++++++++-------- fs/btrfs/volumes.h | 2 +- 7 files changed, 24 insertions(+), 39 deletions(-) -- 2.31.1