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 33222C433F5 for ; Fri, 22 Apr 2022 09:55:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1446314AbiDVJ6H (ORCPT ); Fri, 22 Apr 2022 05:58:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1446325AbiDVJ5x (ORCPT ); Fri, 22 Apr 2022 05:57:53 -0400 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8300BE3B for ; Fri, 22 Apr 2022 02:55:00 -0700 (PDT) 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 23M8oN7p019412; Fri, 22 Apr 2022 09:54:51 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : content-type : in-reply-to : mime-version; s=corp-2021-07-09; bh=pQYP/DBTzZgVomg5w1AEYPhJm9/megcCvAs46kYOqu8=; b=cwvEdgrtZPGO1KjU9AOzzEVyLdu35wMGIsueKX6/AYehwJQvWtlblkPwOB84WDNv79Cc VV7yfKknKiBkoekzV1EgD6zeEEkWJ2PPfRJFFaFRkGQ1SmRpgJEy+SnRiiQfwOzQEY45 lOg/1QRCsp/cQqq/PcY9gJakF+l+8ssv/BvjruDmxePl+CdKC8fXyLVE1WyHN0lJoW8w bp92XHYOxpvz10Lp38zUzdMHo6EcM1WONANoX1qXXCYYTG14oL+Pw94/BmIIvdPK2ACo xSsQuNm9u+eA6cSOoJRDnfr7I6CB9kcTwEMHkWzq2Jx6VkbcJsOBadcG/1Mf5dF7aU1Y 9w== Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.appoci.oracle.com [130.35.100.223]) by mx0b-00069f02.pphosted.com with ESMTP id 3ffm7cwxnt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 22 Apr 2022 09:54:51 +0000 Received: from pps.filterd (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (8.16.1.2/8.16.1.2) with SMTP id 23M9ov2q005670; Fri, 22 Apr 2022 09:54:50 GMT Received: from nam12-mw2-obe.outbound.protection.outlook.com (mail-mw2nam12lp2040.outbound.protection.outlook.com [104.47.66.40]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com with ESMTP id 3ffm8a5422-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 22 Apr 2022 09:54:50 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=kMKiQj3EJIv50Uf2mYT+cEOw5rZjZj4sRLHMokqAxWw4HFhoLxF+Z97Z0xxX4hHj4qqNgfYVLS8Wgod5BQjEFi4jEEfYeADb0+gmcknLTXpxaAdYKo9uOR20qoRlJGJj6YxuDNDj6QEObRgUER/0mMTzIB9Swws3ogft4gl9wFB+cJy7z2z2DwD+NadWWW8pMHKzs//tjS2tzA3siLxlpO5/hclDLm3+pgr/93ILMtDvQcMYhQO1wq9RvNqxNHn9ma9np03vOLwDTLUKU9/EykBHIBY75LGBZa/gjOQ5BHzFp9b/zw6RDb/n/fzyIANA1aEZlwAqJa0AR/K44qhx9w== 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=pQYP/DBTzZgVomg5w1AEYPhJm9/megcCvAs46kYOqu8=; b=Dj8PxRGv4QTCo+ppI3GdtohsXrKT6XP59hWIN6U14WaBshwhzmk05K1/PPmVGdIcdn/c8RAXi7z/6qxoxmi5r58Q24cHtGGeRledKqPI5zzZTNH0FEnlMShDkod1GjavG7VjZfIR8p0ipetuowhWCUKF829vpNdEwVcvPwtZeSrTF1z4LXpMTUan7DNduo/21OsCBVDEwyzd9RvRCYsY9hCXpAhRRf/7EPdc9KyXBjgs/Cm9s3QEkQCH7Bbs06kOU8TXsYTM05kJvByRbzTRUbMNJ8m8/9nm7BhsF+JHeisZdP8z8objSl2xwW/wgLcekhi3xHmm5fmPHfG2o6889g== 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=pQYP/DBTzZgVomg5w1AEYPhJm9/megcCvAs46kYOqu8=; b=ZQ5YMke7G5WIrWKz1+a9rYwJkrTBq/i+2oS/5YppsKGi4gS5yAVS/tL1d3IA5RwwyUuaQOszPZHjtI+ZgwBDez1y0htHWmDez3y1ELozP4ZDIbuRFJcDGs3s1ZLUNK99SFq01sUMUtTioOUSsN06e0VAqsqXZ0cdZNuf5OWri7A= Received: from MWHPR1001MB2365.namprd10.prod.outlook.com (2603:10b6:301:2d::28) by SA2PR10MB4713.namprd10.prod.outlook.com (2603:10b6:806:11d::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5186.15; Fri, 22 Apr 2022 09:54:48 +0000 Received: from MWHPR1001MB2365.namprd10.prod.outlook.com ([fe80::b5d5:7b39:ca2d:1b87]) by MWHPR1001MB2365.namprd10.prod.outlook.com ([fe80::b5d5:7b39:ca2d:1b87%5]) with mapi id 15.20.5164.025; Fri, 22 Apr 2022 09:54:48 +0000 Date: Fri, 22 Apr 2022 12:54:33 +0300 From: Dan Carpenter To: kbuild@lists.01.org, Gabriel Krisman Bertazi , hughd@google.com, akpm@linux-foundation.org, amir73il@gmail.com Cc: lkp@intel.com, kbuild-all@lists.01.org, viro@zeniv.linux.org.uk, Gabriel Krisman Bertazi , kernel@collabora.com, Khazhismel Kumykov , Linux MM , linux-fsdevel Subject: Re: [PATCH v3 2/3] shmem: Introduce /sys/fs/tmpfs support Message-ID: <202204200819.72S8HjcF-lkp@intel.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220418213713.273050-3-krisman@collabora.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-ClientProxiedBy: MRXP264CA0021.FRAP264.PROD.OUTLOOK.COM (2603:10a6:500:15::33) To MWHPR1001MB2365.namprd10.prod.outlook.com (2603:10b6:301:2d::28) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 7239d607-c36d-4072-bec7-08da24462308 X-MS-TrafficTypeDiagnostic: SA2PR10MB4713: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:MWHPR1001MB2365.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(366004)(86362001)(4001150100001)(6506007)(66556008)(4326008)(8676002)(26005)(508600001)(8936002)(83380400001)(44832011)(7416002)(6512007)(66476007)(9686003)(5660300002)(186003)(2906002)(966005)(1076003)(6486002)(6666004)(66946007)(52116002)(54906003)(38100700002)(316002)(36756003)(38350700002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?SvWTSTWCAHOQgOGjc0XLndTHLjdZSYY+62FozWra/Ph5yaRDsuBdepuZZjvJ?= =?us-ascii?Q?bPN2WqkfUBkxtUynzrvps7ztZWgKnVZrfwXECcba7t0N1jZD+fwXZmh6qmYG?= =?us-ascii?Q?aSnN5N4Du9oFj9ZPEbI2Rkr8VJ48RfuX2pkgjxb9GBv+uopTOMEXjUf/5tW/?= =?us-ascii?Q?OItYFMkq5oalfM6po5S/0wAOV7C4E8jrztKQll55U0YsWw5n9nOgJ82ZlYRd?= =?us-ascii?Q?aK9DFK/ZLasAEMrS/kYz+8FvoS3eCWM3yzPZ9oDkW5/1G0OOZyFDZvxK6j1f?= =?us-ascii?Q?fu/MgKVojh9j6Ck+H4BbJSx9ME/E/gGD+wiRe378KTSBK3TfEzZ9rFynxZu5?= =?us-ascii?Q?yZ3MGaazvdXuPu4T/awMHjbl35KpXzMZET/Gjhk44zgBHvxlf0Bs7ZcJOWG7?= =?us-ascii?Q?NSipzSCuGyDgq3IZqTr6GZTmgHcadJjqS0WNaGg/JgZmse+SD4Hrcbq1/sIF?= =?us-ascii?Q?NQOjd9ANRb9aF1Y56DZgN6gphcdzv3q+PzHLJhMqLCVfXwLq1L4Yl3RxUrHD?= =?us-ascii?Q?Uct2El/iCVSHI1M4mjDJd2xOJ6vFJ/OOLuGMG5X9H1jfSaS8kOzpcgpTi58s?= =?us-ascii?Q?U9H4Dgqrooy3LUIuc3s0/lSlb8QUY6nNn9HUhyLinKF9CuAtl7puGC4nl/LS?= =?us-ascii?Q?lG161APdm9IA38fx6JErjnpB1oGCGXf0xS+j9xyLdbH5wRKSj+Yh9LOk3AOm?= =?us-ascii?Q?HdWCPdcjKZobnzUYOm8WbwqHSNUY6+5JkouFAoDZj2dT6CDAx19nAw5p+gYk?= =?us-ascii?Q?LgWrBCV5TK91XhHNGNKbsx05zev4NutH92YehJb7XdhBM3PH8Trl+uzMl3iK?= =?us-ascii?Q?Un5vCRmBx7tP+f2pnbnJqtEx8GK3zmndgcejrTfXoalEqLgTWf1NvGPHakvk?= =?us-ascii?Q?SF8MdsaBajy9M7n1e5PJS4i8FbguyHriy6VOUH5uvfja54o9c8YFUrYC4aRQ?= =?us-ascii?Q?IRWAOmYbNoRWhjXeS6iqplx05e1TPMCkKdVQ1CHQR0+GxT+qTA1doL8VJEY1?= =?us-ascii?Q?jt9/uEZQZ3dtvykTQAaEjDCTDFqWdj1EXGYMI7B61EsOpO3Y7Nooult+AWMU?= =?us-ascii?Q?mKV2n58waeCa+wV7YVhb41LYZ/vT4dB69lIbjgLvvVSecZqNG0yYZ6wvfRtP?= =?us-ascii?Q?yZdw8Nzvg1enjK4NLhoae9GGNgqaKy9IJFm5C7mERGJv2bzAYb2M4IJdmSNb?= =?us-ascii?Q?0dybHtdfpfb9l1c0U0GQMAQuqGVbZTmF/AKU1na2VWPgtp0pdlhPCEUAHmLU?= =?us-ascii?Q?K2ZhDKw4iSb2hnGkbiJ4klefqLRcGzy2pb8zVUjvE29P4A+gehHH0JGqxr0R?= =?us-ascii?Q?OLnRZ/t9bxuknVnb5cA0jsCmm4G8lnLlamrpB7aRam0HBWpZ3U4G/Slb+41D?= =?us-ascii?Q?WRx3n9aoj+flitavATQf4NLwXHMwu/UrBysduMQoG8bANr9rdDCXwvOcfgno?= =?us-ascii?Q?39w+KUw29jMF/j12vyQ5eW7KvC3cRUQLwQumNMyA6mXyJ0OeUw7KBbwXRcjM?= =?us-ascii?Q?zYUJk/q0freYjEWh7MJAakmZofvW/yGueXcRrx6oyYy1Qv3R0sYMFLry7ibN?= =?us-ascii?Q?83Ebt9T+kHGybZ9u6ZAOZp8NzpmrRA5/xvtF7m39EiuNe2uAnl8+DrYSteXg?= =?us-ascii?Q?wzE6XBbvNY2XKWq6QQxxxG3mKyVFDg2fQp1UyjVnrZbEuR67kpNC7HlbL995?= =?us-ascii?Q?SpkOthdFekfBfU8gK4ONFVE6RDUluM5UrY8MmjQ7gggMbrQILf3tOXIg7uYT?= =?us-ascii?Q?ZKur9Pu/kUJ57iSndIPCdXtN+2f7rkw=3D?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7239d607-c36d-4072-bec7-08da24462308 X-MS-Exchange-CrossTenant-AuthSource: MWHPR1001MB2365.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Apr 2022 09:54:48.2463 (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: ghNo5grVg0q8pB2wa6n0UyFi3wZXEY4i3U0wFPMxrKBOFukzML2C4vfThTUH1VaTxJT7ts2jz71t4ABNuLIe+Cjh7Bz24p3mSqie1UkY7pw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA2PR10MB4713 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.486,18.0.858 definitions=2022-04-22_02:2022-04-21,2022-04-22 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 mlxscore=0 phishscore=0 adultscore=0 mlxlogscore=999 spamscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2204220044 X-Proofpoint-GUID: yYc1Aecyi7zJQ9Nk9SmdS2LNyY6KsqZO X-Proofpoint-ORIG-GUID: yYc1Aecyi7zJQ9Nk9SmdS2LNyY6KsqZO Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Hi Gabriel, url: https://github.com/intel-lab-lkp/linux/commits/Gabriel-Krisman-Bertazi/shmem-Allow-userspace-monitoring-of-tmpfs-for-lack-of-space/20220419-054011 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b2d229d4ddb17db541098b83524d901257e93845 config: ia64-randconfig-m031-20220418 (https://download.01.org/0day-ci/archive/20220420/202204200819.72S8HjcF-lkp@intel.com/config) compiler: ia64-linux-gcc (GCC) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot Reported-by: Dan Carpenter smatch warnings: mm/shmem.c:3965 shmem_init() warn: passing zero to 'ERR_PTR' vim +/ERR_PTR +3965 mm/shmem.c 41ffe5d5ceef7f Hugh Dickins 2011-08-03 3928 int __init shmem_init(void) ^1da177e4c3f41 Linus Torvalds 2005-04-16 3929 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 3930 int error; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3931 9a8ec03ed022b7 weiping zhang 2017-11-15 3932 shmem_init_inodecache(); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3933 41ffe5d5ceef7f Hugh Dickins 2011-08-03 3934 error = register_filesystem(&shmem_fs_type); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3935 if (error) { 1170532bb49f94 Joe Perches 2016-03-17 3936 pr_err("Could not register tmpfs\n"); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3937 goto out2; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3938 } 95dc112a5770dc Greg Kroah-Hartman 2005-06-20 3939 e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3940 shmem_root = kobject_create_and_add("tmpfs", fs_kobj); e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3941 if (!shmem_root) e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3942 goto out1; error = -ENOMEM; e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3943 ca4e05195dbc25 Al Viro 2013-08-31 3944 shm_mnt = kern_mount(&shmem_fs_type); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3945 if (IS_ERR(shm_mnt)) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 3946 error = PTR_ERR(shm_mnt); 1170532bb49f94 Joe Perches 2016-03-17 3947 pr_err("Could not kern_mount tmpfs\n"); e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3948 goto put_kobj; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3949 } 5a6e75f8110c97 Kirill A. Shutemov 2016-07-26 3950 396bcc5299c281 Matthew Wilcox (Oracle 2020-04-06 3951) #ifdef CONFIG_TRANSPARENT_HUGEPAGE 435c0b87d661da Kirill A. Shutemov 2017-08-25 3952 if (has_transparent_hugepage() && shmem_huge > SHMEM_HUGE_DENY) 5a6e75f8110c97 Kirill A. Shutemov 2016-07-26 3953 SHMEM_SB(shm_mnt->mnt_sb)->huge = shmem_huge; 5a6e75f8110c97 Kirill A. Shutemov 2016-07-26 3954 else 5e6e5a12a44ca5 Hugh Dickins 2021-09-02 3955 shmem_huge = SHMEM_HUGE_NEVER; /* just in case it was patched */ 5a6e75f8110c97 Kirill A. Shutemov 2016-07-26 3956 #endif ^1da177e4c3f41 Linus Torvalds 2005-04-16 3957 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3958 e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3959 put_kobj: e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3960 kobject_put(shmem_root); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3961 out1: 41ffe5d5ceef7f Hugh Dickins 2011-08-03 3962 unregister_filesystem(&shmem_fs_type); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3963 out2: 41ffe5d5ceef7f Hugh Dickins 2011-08-03 3964 shmem_destroy_inodecache(); ^1da177e4c3f41 Linus Torvalds 2005-04-16 @3965 shm_mnt = ERR_PTR(error); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3966 return error; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3967 } -- 0-DAY CI Kernel Test Service https://01.org/lkp