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From: "Darrick J. Wong" <djwong@kernel.org>
To: sandeen@sandeen.net, djwong@kernel.org
Cc: Brian Foster <bfoster@redhat.com>,
	linux-xfs@vger.kernel.org, bfoster@redhat.com
Subject: [PATCH 04/11] xfs_db: don't allow label/uuid setting if the needsrepair flag is set
Date: Thu, 11 Feb 2021 14:59:24 -0800
Message-ID: <161308436401.3850286.10329324186479058348.stgit@magnolia> (raw)
In-Reply-To: <161308434132.3850286.13801623440532587184.stgit@magnolia>

From: Darrick J. Wong <djwong@kernel.org>

The NEEDSREPAIR flag can be set on filesystems where we /know/ that
there's something wrong with the metadata and want to force the sysadmin
to run xfs_repair before the next mount.  The goal here is to prevent
non-repair changes to a filesystem when we are confident of its
instability.  Normally we wouldn't bother with such safety checks for
the debugger, but the label and uuid functions can be called from
xfs_admin, so we should prevent these administrative tasks until the
filesystem can be repaired.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Brian Foster <bfoster@redhat.com>
---
 db/sb.c |   11 +++++++++++
 1 file changed, 11 insertions(+)


diff --git a/db/sb.c b/db/sb.c
index d7111e92..cec7dce9 100644
--- a/db/sb.c
+++ b/db/sb.c
@@ -379,6 +379,11 @@ uuid_f(
 				progname);
 			return 0;
 		}
+		if (xfs_sb_version_needsrepair(&mp->m_sb)) {
+			dbprintf(_("%s: filesystem needs xfs_repair\n"),
+				progname);
+			return 0;
+		}
 
 		if (!strcasecmp(argv[1], "generate")) {
 			platform_uuid_generate(&uu);
@@ -543,6 +548,12 @@ label_f(
 			return 0;
 		}
 
+		if (xfs_sb_version_needsrepair(&mp->m_sb)) {
+			dbprintf(_("%s: filesystem needs xfs_repair\n"),
+				progname);
+			return 0;
+		}
+
 		dbprintf(_("writing all SBs\n"));
 		for (ag = 0; ag < mp->m_sb.sb_agcount; ag++)
 			if ((p = do_label(ag, argv[1])) == NULL) {


  parent reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-11 22:59 [PATCHSET v5 00/11] xfs: add the ability to flag a fs for repair Darrick J. Wong
2021-02-11 22:59 ` [PATCH 01/11] xfs_admin: clean up string quoting Darrick J. Wong
2021-02-11 23:08   ` Chaitanya Kulkarni
2021-02-11 22:59 ` [PATCH 02/11] xfs_admin: support filesystems with realtime devices Darrick J. Wong
2021-02-11 23:08   ` Chaitanya Kulkarni
2021-02-11 22:59 ` [PATCH 03/11] xfs_db: report the needsrepair flag in check and version commands Darrick J. Wong
2021-02-11 22:59 ` Darrick J. Wong [this message]
2021-02-11 22:59 ` [PATCH 05/11] xfs_repair: fix unmount error message to have a newline Darrick J. Wong
2021-02-11 23:12   ` Chaitanya Kulkarni
2021-02-11 22:59 ` [PATCH 06/11] xfs_repair: clear quota CHKD flags on the incore superblock too Darrick J. Wong
2021-02-11 22:59 ` [PATCH 07/11] xfs_repair: clear the needsrepair flag Darrick J. Wong
2021-02-11 22:59 ` [PATCH 08/11] xfs_repair: allow setting " Darrick J. Wong
2021-02-11 23:29   ` Eric Sandeen
2021-02-12  0:17     ` Darrick J. Wong
2021-02-12  0:20       ` Eric Sandeen
2021-02-12  1:26         ` Darrick J. Wong
2021-02-12  4:35       ` Darrick J. Wong
2021-02-12 13:35       ` Brian Foster
2021-02-12 18:54         ` Darrick J. Wong
2021-02-11 22:59 ` [PATCH 09/11] xfs_repair: add a testing hook for NEEDSREPAIR Darrick J. Wong
2021-02-11 22:59 ` [PATCH 10/11] xfs_admin: support adding features to V5 filesystems Darrick J. Wong
2021-02-11 23:00 ` [PATCH 11/11] man: mark all deprecated V4 format options Darrick J. Wong

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