From patchwork Thu Oct 31 09:59:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 13857767 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 51966198E65; Thu, 31 Oct 2024 09:59:53 +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=1730368795; cv=fail; b=Rtl1M8sK750GQbQhcOpSc+aL1KUdQgeutiMVOyTVUMA6DrjiRfrPwkYz58glOQbnKjrt+67ET9aigG4Z19odnkulUDzGawivBCUl/m7/8e+H6N3e8da5BgSC9Ipkl7UWU3o05ctuIQKgRs/ZWUiGQlaDhdyrCMYiB9imeJILNmw= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730368795; c=relaxed/simple; bh=bVFgN+Nx0yow5WSnyzUjLTqB7/9BGHm247QIroS0xbU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=KrXftKO4t4P6ID28gOQeWIwrDdAWSjXeG99voVA4U3lkE0XOEW6LF9p7Z610aqbklop+G9HcfUsOdL6E2ALRoQk+YDeK87QFOi3qXQPzcdGEgoFiJa3txd7t5QSkaTHqxYiZaHDUen1dZ9TJf/8DcHwOT5uZyskvrh2w8v/gYOY= 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=gO6WIn8a; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=fu29Wsnt; 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="gO6WIn8a"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="fu29Wsnt" Received: from pps.filterd (m0333520.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 49V8tXd5023675; Thu, 31 Oct 2024 09:59:37 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=42s53HmVDS8VAifHu8BZCjh+QcI4tyInVm3M2lBnnCo=; b= gO6WIn8autgp8JZMFvqtoQd4spAby4AkGvoL8ta3ps5FdXR79E+0zPnt/MP+Ysil vf8PhjUDrTlqDbxM98oRgOCplJZx8bYb7htWjONxeeR/twXCFOkPaHWZ2Qd13+o8 qsrgklwnMUTM7Bgvc9CaZd4yOChf6oNxKwJIccIQA5GaphQL0Z4lsq4kXRzdjYnC gT3264cuiPtFgQ6rNm/BR2UGMt5Ew2O4VfH9nMm4rjBsTGc5bcILTyn2FgogCFJz 2H4paWtHO4TksFlaYiE+Y+eIwFny8icIAr/52mknznzdsXGGPbxTqb8kCVy0XQoB G5oMEpDhbuQMQakOBuXigw== Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.appoci.oracle.com [130.35.100.223]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 42grgmj0t9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 31 Oct 2024 09:59:37 +0000 (GMT) Received: from pps.filterd (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 49V7XVSN011848; Thu, 31 Oct 2024 09:59:36 GMT Received: from nam12-mw2-obe.outbound.protection.outlook.com (mail-mw2nam12lp2043.outbound.protection.outlook.com [104.47.66.43]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 42hnaf5vwp-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 31 Oct 2024 09:59:36 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=LWGO9p7+GI7xriA0WjvkH12GLjrkmnhyHEZaAWDiVv1T+wcQ5zyvSX4YV3lbyMVTqw51ldn3o/axg89/egi3e4mN7Zgi9/FFTn0G3PqrnIOVB82HpJOJ/dOtUE+ztPJUYK2Jl3hD6KeMVB+dt12KfOi5i9kxC16zpPzTlejkhsm7UFkB6i70+V6/y4CaLYXt9QfMj0Bn4SBPB8VevXJZ1FabYLrx2/BIJFIwhpXV0ebV/0wRqDM+/k4iZWUsfAl2j4NykElkh3uCCdkutDNnrJJTe7E3pgixWeCr/4Z20hk6NCig8Nw6wiO0grHdR9tjCP70jZxBLCHy2jfOH9PT2w== 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=42s53HmVDS8VAifHu8BZCjh+QcI4tyInVm3M2lBnnCo=; b=sxAxzkZ2g5LwkVNLLTERHT1tPImUCHddmlUaT952w5kzN8iArQAeS26eenLOKLT835gROrpa3QkJYgixLZdTooVWzD+UjIEoQK2zlSxJeOGs5u2zy/fYvx1r2fccPUt9lf+s7Ce8PPz2umhhQHU7Wt9G+g3JnDlZ0pSwlAfDGqOhv/Xhxhl/WyuDS5gAfPWFslZZRpS49VOKg3lDtZbiYMULxQ+Yn0YihNkwb3QFpwItfOJZiSwcnnH8YNkEj878RyFhAnqsYFuuRNEURqeMz+jLB65jNYYf3Q1rngzW/GpGFA/eKfhXXmD8HgsHiY8ynrtVojCA2u9fmyIa1jAmVw== 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=42s53HmVDS8VAifHu8BZCjh+QcI4tyInVm3M2lBnnCo=; b=fu29WsntEWUat+eVB5b7PkdZ3iVco3Ho/qbRStMiMzZRCU5Y2JC/2q7P4t/ymytmBTMYrTtfYQA7jSPl6My4E8UH6ZtrJhXHbExbeTLAe0VRSxI+RPnqTSAEFQlTz2QRpKUuw2jjWNSmqLQlEn82OJQ5o4jscHMwEZ7ynSB/X3s= Received: from DM6PR10MB4313.namprd10.prod.outlook.com (2603:10b6:5:212::20) by PH7PR10MB5724.namprd10.prod.outlook.com (2603:10b6:510:125::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8093.32; Thu, 31 Oct 2024 09:59:34 +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 15.20.8093.027; Thu, 31 Oct 2024 09:59:34 +0000 From: John Garry To: axboe@kernel.dk, song@kernel.org, yukuai3@huawei.com, hch@lst.de Cc: martin.petersen@oracle.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, hare@suse.de, Johannes.Thumshirn@wdc.com, John Garry Subject: [PATCH v3 5/6] md/raid1: Handle bio_split() errors Date: Thu, 31 Oct 2024 09:59:17 +0000 Message-Id: <20241031095918.99964-6-john.g.garry@oracle.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20241031095918.99964-1-john.g.garry@oracle.com> References: <20241031095918.99964-1-john.g.garry@oracle.com> X-ClientProxiedBy: MN0PR05CA0028.namprd05.prod.outlook.com (2603:10b6:208:52c::12) To DM6PR10MB4313.namprd10.prod.outlook.com (2603:10b6:5:212::20) 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: DM6PR10MB4313:EE_|PH7PR10MB5724:EE_ X-MS-Office365-Filtering-Correlation-Id: b91b2115-e8c4-48b8-5ca8-08dcf992b8ec X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|366016; 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:DM6PR10MB4313.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(376014)(366016);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: b91b2115-e8c4-48b8-5ca8-08dcf992b8ec X-MS-Exchange-CrossTenant-AuthSource: DM6PR10MB4313.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Oct 2024 09:59:34.4036 (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: 8iaw063zT8n8xdZ6AGxX4D3dnS56foUlvW+yXrnsBYH2XIstzN5fyu4d6vfK+boCDzNhj030bIZBVt9k3FUJQg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR10MB5724 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=2024-10-31_01,2024-10-30_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 malwarescore=0 spamscore=0 bulkscore=0 mlxscore=0 suspectscore=0 mlxlogscore=999 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2409260000 definitions=main-2410310075 X-Proofpoint-GUID: 8WZ8D8EEhSuq5jHrLdccFbTF16Ni1rxL X-Proofpoint-ORIG-GUID: 8WZ8D8EEhSuq5jHrLdccFbTF16Ni1rxL Add proper bio_split() error handling. For any error, call raid_end_bio_io() and return. For the case of an in the write path, we need to undo the increment in the rdev pending count and NULLify the r1_bio->bios[] pointers. For read path failure, we need to undo rdev pending count increment from the earlier read_balance() call. Signed-off-by: John Garry Reviewed-by: Yu Kuai --- drivers/md/raid1.c | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 6c9d24203f39..7e023e9303c8 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1322,7 +1322,7 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio, const enum req_op op = bio_op(bio); const blk_opf_t do_sync = bio->bi_opf & REQ_SYNC; int max_sectors; - int rdisk; + int rdisk, error; bool r1bio_existed = !!r1_bio; /* @@ -1383,6 +1383,11 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio, if (max_sectors < bio_sectors(bio)) { struct bio *split = bio_split(bio, max_sectors, gfp, &conf->bio_split); + + if (IS_ERR(split)) { + error = PTR_ERR(split); + goto err_handle; + } bio_chain(split, bio); submit_bio_noacct(bio); bio = split; @@ -1410,6 +1415,13 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio, read_bio->bi_private = r1_bio; mddev_trace_remap(mddev, read_bio, r1_bio->sector); submit_bio_noacct(read_bio); + return; + +err_handle: + atomic_dec(&mirror->rdev->nr_pending); + bio->bi_status = errno_to_blk_status(error); + set_bit(R1BIO_Uptodate, &r1_bio->state); + raid_end_bio_io(r1_bio); } static void raid1_write_request(struct mddev *mddev, struct bio *bio, @@ -1417,7 +1429,7 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio, { struct r1conf *conf = mddev->private; struct r1bio *r1_bio; - int i, disks; + int i, disks, k, error; unsigned long flags; struct md_rdev *blocked_rdev; int first_clone; @@ -1576,6 +1588,11 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio, if (max_sectors < bio_sectors(bio)) { struct bio *split = bio_split(bio, max_sectors, GFP_NOIO, &conf->bio_split); + + if (IS_ERR(split)) { + error = PTR_ERR(split); + goto err_handle; + } bio_chain(split, bio); submit_bio_noacct(bio); bio = split; @@ -1660,6 +1677,18 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio, /* In case raid1d snuck in to freeze_array */ wake_up_barrier(conf); + return; +err_handle: + for (k = 0; k < i; k++) { + if (r1_bio->bios[k]) { + rdev_dec_pending(conf->mirrors[k].rdev, mddev); + r1_bio->bios[k] = NULL; + } + } + + bio->bi_status = errno_to_blk_status(error); + set_bit(R1BIO_Uptodate, &r1_bio->state); + raid_end_bio_io(r1_bio); } static bool raid1_make_request(struct mddev *mddev, struct bio *bio)