From patchwork Mon Apr 1 17:10:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 10880455 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AA8E814DE for ; Mon, 1 Apr 2019 18:08:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 93F15286A0 for ; Mon, 1 Apr 2019 18:08:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 885A328764; Mon, 1 Apr 2019 18:08:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0BD87286A0 for ; Mon, 1 Apr 2019 18:08:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728739AbfDASIO (ORCPT ); Mon, 1 Apr 2019 14:08:14 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:59902 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729427AbfDARKc (ORCPT ); Mon, 1 Apr 2019 13:10:32 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x31H9LUd131494 for ; Mon, 1 Apr 2019 17:10:31 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : from : to : cc : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=corp-2018-07-02; bh=xvQwGcZ43cJrPjUb1/8R8y+2MGrVcuknikLC6gh7vNk=; b=zt5FXT02KREJ87cpqbHCAzqShVQe+SK1kVre9BVxAP/hRFNz6CqPaonIr6NtiSKONh4l BXFgE9nOLNWIonEESTEbeqPoT6QbGuR6z7kJmZdofLji1PdeC5fJn5GoGpv5+aLpibnV fWDbCw5AX6a3AHLwaycuQc/C9/bJ7w1geYPu71zVDXq5+i5gJqS+ENnbKrRflUzu7xyw Y3ESFdmuVcMTA37p0gbmGdwjU51MUbj651ntA7NjEPtmqG+m4wHCj7Te0xFwnjMfbq17 QWObnZzzf9Q1Gs+q+n/TN//AY0ZiS+Yq/y8yYX7X95wzY0kd4hoazVeecUmOfTXAnaZO 6w== Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp2130.oracle.com with ESMTP id 2rhyvt0csw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 01 Apr 2019 17:10:30 +0000 Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0021.oracle.com (8.14.4/8.14.4) with ESMTP id x31HAT9b013106 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 1 Apr 2019 17:10:29 GMT Received: from abhmp0020.oracle.com (abhmp0020.oracle.com [141.146.116.26]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x31HATro016789 for ; Mon, 1 Apr 2019 17:10:29 GMT Received: from localhost (/10.159.239.211) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 01 Apr 2019 10:10:28 -0700 Subject: [PATCH 03/10] xfs: clear BAD_SUMMARY if unmounting an unhealthy filesystem From: "Darrick J. Wong" To: darrick.wong@oracle.com Cc: linux-xfs@vger.kernel.org Date: Mon, 01 Apr 2019 10:10:28 -0700 Message-ID: <155413862812.4966.6543791189302248422.stgit@magnolia> In-Reply-To: <155413860964.4966.6087725033542837255.stgit@magnolia> References: <155413860964.4966.6087725033542837255.stgit@magnolia> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9214 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1904010112 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Darrick J. Wong If we know the filesystem metadata isn't healthy during unmount, we want to encourage the administrator to run xfs_repair right away. We can't do this if BAD_SUMMARY will cause an unclean log unmount to force summary recalculation, so turn it off if the fs is bad. Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_health.h | 2 + fs/xfs/xfs_health.c | 59 ++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_mount.c | 2 + fs/xfs/xfs_trace.h | 3 ++ 4 files changed, 66 insertions(+) diff --git a/fs/xfs/libxfs/xfs_health.h b/fs/xfs/libxfs/xfs_health.h index 0d51bd2689ea..269b124dc1d7 100644 --- a/fs/xfs/libxfs/xfs_health.h +++ b/fs/xfs/libxfs/xfs_health.h @@ -148,6 +148,8 @@ void xfs_inode_mark_sick(struct xfs_inode *ip, unsigned int mask); void xfs_inode_mark_healthy(struct xfs_inode *ip, unsigned int mask); unsigned int xfs_inode_measure_sickness(struct xfs_inode *ip); +void xfs_health_unmount(struct xfs_mount *mp); + /* Now some helpers. */ static inline bool diff --git a/fs/xfs/xfs_health.c b/fs/xfs/xfs_health.c index e9d6859f7501..6e2da858c356 100644 --- a/fs/xfs/xfs_health.c +++ b/fs/xfs/xfs_health.c @@ -19,6 +19,65 @@ #include "xfs_trace.h" #include "xfs_health.h" +/* + * Warn about metadata corruption that we detected but haven't fixed, and + * make sure we're not sitting on anything that would get in the way of + * recovery. + */ +void +xfs_health_unmount( + struct xfs_mount *mp) +{ + struct xfs_perag *pag; + xfs_agnumber_t agno; + unsigned int sick; + bool warn = false; + + if (XFS_FORCED_SHUTDOWN(mp)) + return; + + /* Measure AG corruption levels. */ + for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) { + pag = xfs_perag_get(mp, agno); + spin_lock(&pag->pag_state_lock); + if (pag->pag_sick) { + trace_xfs_ag_unfixed_corruption(mp, agno, sick); + warn = true; + } + spin_unlock(&pag->pag_state_lock); + xfs_perag_put(pag); + } + + /* Measure realtime volume corruption levels. */ + sick = xfs_rt_measure_sickness(mp); + if (sick) { + trace_xfs_rt_unfixed_corruption(mp, sick); + warn = true; + } + + /* Measure fs corruption and keep the sample around for the warning. */ + sick = xfs_fs_measure_sickness(mp); + if (sick) { + trace_xfs_fs_unfixed_corruption(mp, sick); + warn = true; + } + + if (warn) { + xfs_warn(mp, +"Uncorrected metadata errors detected; please run xfs_repair."); + + /* + * If we have unhealthy metadata, we want the admin to run + * xfs_repair after unmounting. They can't do that if the log + * is written out without a clean unmount record (such as when + * the summary counters are marked unhealthy to force + * recalculation of the summary counters) so clear it. + */ + if (sick & XFS_HEALTH_FS_COUNTERS) + xfs_fs_mark_healthy(mp, XFS_HEALTH_FS_COUNTERS); + } +} + /* Mark unhealthy per-fs metadata. */ void xfs_fs_mark_sick( diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index a43ca655a431..f0f73d598a0c 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1075,6 +1075,7 @@ xfs_mountfs( */ cancel_delayed_work_sync(&mp->m_reclaim_work); xfs_reclaim_inodes(mp, SYNC_WAIT); + xfs_health_unmount(mp); out_log_dealloc: mp->m_flags |= XFS_MOUNT_UNMOUNTING; xfs_log_mount_cancel(mp); @@ -1157,6 +1158,7 @@ xfs_unmountfs( */ cancel_delayed_work_sync(&mp->m_reclaim_work); xfs_reclaim_inodes(mp, SYNC_WAIT); + xfs_health_unmount(mp); xfs_qm_unmount(mp); diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index f079841c7af6..2464ea351f83 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -3461,8 +3461,10 @@ DEFINE_EVENT(xfs_fs_corrupt_class, name, \ TP_ARGS(mp, flags)) DEFINE_FS_CORRUPT_EVENT(xfs_fs_mark_sick); DEFINE_FS_CORRUPT_EVENT(xfs_fs_mark_healthy); +DEFINE_FS_CORRUPT_EVENT(xfs_fs_unfixed_corruption); DEFINE_FS_CORRUPT_EVENT(xfs_rt_mark_sick); DEFINE_FS_CORRUPT_EVENT(xfs_rt_mark_healthy); +DEFINE_FS_CORRUPT_EVENT(xfs_rt_unfixed_corruption); DECLARE_EVENT_CLASS(xfs_ag_corrupt_class, TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, unsigned int flags), @@ -3488,6 +3490,7 @@ DEFINE_EVENT(xfs_ag_corrupt_class, name, \ TP_ARGS(mp, agno, flags)) DEFINE_AG_CORRUPT_EVENT(xfs_ag_mark_sick); DEFINE_AG_CORRUPT_EVENT(xfs_ag_mark_healthy); +DEFINE_AG_CORRUPT_EVENT(xfs_ag_unfixed_corruption); DECLARE_EVENT_CLASS(xfs_inode_corrupt_class, TP_PROTO(struct xfs_inode *ip, unsigned int flags),