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From: "Darrick J. Wong" <djwong@kernel.org>
To: sandeen@sandeen.net, djwong@kernel.org
Cc: Christoph Hellwig <hch@lst.de>,
	linux-xfs@vger.kernel.org, bfoster@redhat.com
Subject: [PATCH 09/11] xfs_repair: add a testing hook for NEEDSREPAIR
Date: Thu, 11 Feb 2021 14:59:52 -0800	[thread overview]
Message-ID: <161308439253.3850286.5243500865602980663.stgit@magnolia> (raw)
In-Reply-To: <161308434132.3850286.13801623440532587184.stgit@magnolia>

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

Simulate a crash when anyone calls force_needsrepair.  This is a debug
knob so that we can test that the kernel won't mount after setting
needsrepair and that a re-run of xfs_repair will clear the flag.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 repair/globals.c    |    1 +
 repair/globals.h    |    2 ++
 repair/phase2.c     |    4 ++++
 repair/xfs_repair.c |    5 +++++
 4 files changed, 12 insertions(+)


diff --git a/repair/globals.c b/repair/globals.c
index 699a96ee..b0e23864 100644
--- a/repair/globals.c
+++ b/repair/globals.c
@@ -40,6 +40,7 @@ int	dangerously;		/* live dangerously ... fix ro mount */
 int	isa_file;
 int	zap_log;
 int	dumpcore;		/* abort, not exit on fatal errs */
+bool	abort_after_force_needsrepair;
 int	force_geo;		/* can set geo on low confidence info */
 int	assume_xfs;		/* assume we have an xfs fs */
 char	*log_name;		/* Name of log device */
diff --git a/repair/globals.h b/repair/globals.h
index 043b3e8e..9fa73b2c 100644
--- a/repair/globals.h
+++ b/repair/globals.h
@@ -82,6 +82,8 @@ extern int	isa_file;
 extern int	zap_log;
 extern int	dumpcore;		/* abort, not exit on fatal errs */
 extern int	force_geo;		/* can set geo on low confidence info */
+/* Abort after forcing NEEDSREPAIR to test its functionality */
+extern bool	abort_after_force_needsrepair;
 extern int	assume_xfs;		/* assume we have an xfs fs */
 extern char	*log_name;		/* Name of log device */
 extern int	log_spec;		/* Log dev specified as option */
diff --git a/repair/phase2.c b/repair/phase2.c
index 9a8d42e1..177e0831 100644
--- a/repair/phase2.c
+++ b/repair/phase2.c
@@ -183,6 +183,10 @@ upgrade_filesystem(
                         do_error(
 	_("filesystem feature upgrade failed, err=%d\n"),
                                         error);
+
+		/* Simulate a crash after setting needsrepair. */
+		if (abort_after_force_needsrepair)
+			exit(55);
         }
         if (bp)
                 libxfs_buf_relse(bp);
diff --git a/repair/xfs_repair.c b/repair/xfs_repair.c
index a613505f..293d89b1 100644
--- a/repair/xfs_repair.c
+++ b/repair/xfs_repair.c
@@ -44,6 +44,7 @@ enum o_opt_nums {
 	BLOAD_LEAF_SLACK,
 	BLOAD_NODE_SLACK,
 	NOQUOTA,
+	FORCE_NEEDSREPAIR_ABORT,
 	O_MAX_OPTS,
 };
 
@@ -57,6 +58,7 @@ static char *o_opts[] = {
 	[BLOAD_LEAF_SLACK]	= "debug_bload_leaf_slack",
 	[BLOAD_NODE_SLACK]	= "debug_bload_node_slack",
 	[NOQUOTA]		= "noquota",
+	[FORCE_NEEDSREPAIR_ABORT] = "debug_force_needsrepair_abort",
 	[O_MAX_OPTS]		= NULL,
 };
 
@@ -282,6 +284,9 @@ process_args(int argc, char **argv)
 		_("-o debug_bload_node_slack requires a parameter\n"));
 					bload_node_slack = (int)strtol(val, NULL, 0);
 					break;
+				case FORCE_NEEDSREPAIR_ABORT:
+					abort_after_force_needsrepair = true;
+					break;
 				case NOQUOTA:
 					quotacheck_skip();
 					break;


  parent reply	other threads:[~2021-02-11 23:00 UTC|newest]

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 ` [PATCH 04/11] xfs_db: don't allow label/uuid setting if the needsrepair flag is set Darrick J. Wong
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 ` Darrick J. Wong [this message]
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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