[PATCHSET] fstests: fixes for autonomous self healing of filesystems

[PATCHSET] fstests: fixes for autonomous self healing of filesystems

[Darrick J. Wong]

Hi all,

These are miscellaneous bug fixes for the queued-up self healing
fstests.

If you're going to start using this code, I strongly recommend pulling
from my git trees, which are linked below.

With a bit of luck, this should all go splendidly.
Comments and questions are, as always, welcome.

--D

fstests git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=health-monitoring-fixes
---
Commits in this patchset:
 * common: ignore stderr for the two new svcname helpers
 * xfs/6{59-61}: force xfs_healer to run
 * xfs/805: adjust for new autofsck fsproperty defaults
---
 common/xfs        |    4 ++--
 tests/xfs/659     |    3 +++
 tests/xfs/660     |    3 +++
 tests/xfs/661     |    4 ++++
 tests/xfs/805     |    7 +------
 tests/xfs/805.out |    1 -
 6 files changed, 13 insertions(+), 9 deletions(-)

[PATCH 1/3] common: ignore stderr for the two new svcname helpers

[Darrick J. Wong]

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

If either utility doesn't support the --svcname switch, ignore the
error output and just return an empty string.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
 common/xfs |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)


diff --git a/common/xfs b/common/xfs
index f276325df8fbac..7d7afbb5160951 100644
--- a/common/xfs
+++ b/common/xfs
@@ -2311,7 +2311,7 @@ _xfs_healer() {
 # This is easy because xfs_healer has always supported --svcname.
 _xfs_healer_svcname()
 {
-	_xfs_healer --svcname "$@"
+	_xfs_healer --svcname "$@" 2>/dev/null
 }
 
 # Compute the xfs_scrub systemd service instance name for a given path.  This
@@ -2320,7 +2320,7 @@ _xfs_scrub_svcname()
 {
 	local ret
 
-	if ret="$($XFS_SCRUB_PROG --svcname "$@")"; then
+	if ret="$($XFS_SCRUB_PROG --svcname "$@" 2>/dev/null)"; then
 		echo "$ret"
 		return 0
 	fi

Re: [PATCH 1/3] common: ignore stderr for the two new svcname helpers

[Christoph Hellwig]

On Mon, Mar 16, 2026 at 04:29:03PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
> 
> If either utility doesn't support the --svcname switch, ignore the
> error output and just return an empty string.

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>

[PATCH 2/3] xfs/6{59-61}: force xfs_healer to run

[Darrick J. Wong]

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

Set the autofsck property so that xfs_healer actually runs on
filesystems with old feature sets.  Since these tests are looking for
error reports that don't require backref metadata (media errors, file IO
errors, shutdowns) we needn't _notrun them.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
 tests/xfs/659 |    3 +++
 tests/xfs/660 |    3 +++
 tests/xfs/661 |    4 ++++
 3 files changed, 10 insertions(+)


diff --git a/tests/xfs/659 b/tests/xfs/659
index 6d17711a07b118..556c1991a3c467 100755
--- a/tests/xfs/659
+++ b/tests/xfs/659
@@ -26,6 +26,7 @@ _cleanup()
 _require_scratch
 _require_scrub
 _require_command "$XFS_HEALER_PROG" "xfs_healer"
+_require_command "$XFS_PROPERTY_PROG" "xfs_property"
 _require_dm_target error
 _require_no_xfs_always_cow	# no out of place writes
 
@@ -59,6 +60,8 @@ _scratch_mkfs >> $seqres.full
 #
 _scratch_mount
 _require_xfs_scratch_non_zoned
+# Force xfs_healer to run even if there's no backref metadata
+$XFS_PROPERTY_PROG $SCRATCH_MNT set autofsck=check >> $seqres.full
 _require_xfs_healer $SCRATCH_MNT
 _scratch_unmount
 
diff --git a/tests/xfs/660 b/tests/xfs/660
index 214dfe1a15b130..962a2fc78353ff 100755
--- a/tests/xfs/660
+++ b/tests/xfs/660
@@ -25,6 +25,7 @@ _require_scratch
 _require_scrub
 _require_dm_target error
 _require_command "$XFS_HEALER_PROG" "xfs_healer"
+_require_command "$XFS_PROPERTY_PROG" "xfs_property"
 _require_xfs_io_command verifymedia
 
 filter_healer() {
@@ -57,6 +58,8 @@ _scratch_mkfs >> $seqres.full
 _scratch_mount
 _require_xfs_scratch_non_zoned
 _require_xfs_healer $SCRATCH_MNT
+# Force xfs_healer to run even if there's no backref metadata
+$XFS_PROPERTY_PROG $SCRATCH_MNT set autofsck=check >> $seqres.full
 _scratch_unmount
 
 _dmerror_init
diff --git a/tests/xfs/661 b/tests/xfs/661
index f3f74cfe582c51..45e095395365f5 100755
--- a/tests/xfs/661
+++ b/tests/xfs/661
@@ -16,10 +16,14 @@ _begin_fstest auto quick scrub eio selfhealing shutdown
 _require_scratch_nocheck
 _require_scrub
 _require_command "$XFS_HEALER_PROG" "xfs_healer"
+_require_command "$XFS_PROPERTY_PROG" "xfs_property"
 
 _scratch_mkfs >> $seqres.full
 _scratch_mount
 _require_xfs_healer $SCRATCH_MNT
+# Force xfs_healer to run even if there's no backref metadata
+$XFS_PROPERTY_PROG $SCRATCH_MNT set autofsck=check >> $seqres.full
+
 $XFS_IO_PROG -f -c "pwrite -S 0x58 0 500k" -c "fsync" $victim >> $seqres.full
 
 echo "Start healer and shut down"

Re: [PATCH 2/3] xfs/6{59-61}: force xfs_healer to run

[Christoph Hellwig]

On Mon, Mar 16, 2026 at 04:29:19PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
> 
> Set the autofsck property so that xfs_healer actually runs on
> filesystems with old feature sets.  Since these tests are looking for
> error reports that don't require backref metadata (media errors, file IO
> errors, shutdowns) we needn't _notrun them.

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>

[PATCH 3/3] xfs/805: adjust for new autofsck fsproperty defaults

[Darrick J. Wong]

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

Now that mkfs will set autofsck=repair for filesystems that have both
reverse space mappings and file parent pointers enabled, let's stop
testing the "no autofsck option at all" scenario to avoid problems with
older mkfs.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
 tests/xfs/805     |    7 +------
 tests/xfs/805.out |    1 -
 2 files changed, 1 insertion(+), 7 deletions(-)


diff --git a/tests/xfs/805 b/tests/xfs/805
index ae8f8a1ab7cf44..cb57561a1bafd7 100755
--- a/tests/xfs/805
+++ b/tests/xfs/805
@@ -37,13 +37,9 @@ filter_inum()
 }
 
 testme() {
-	local mkfs_args=('-f')
 	local value="$1"
 	test -n "$value" && value="=$value"
-
-	if [ $# -gt 0 ]; then
-		mkfs_args+=('-m' "autofsck$value")
-	fi
+	local mkfs_args=('-f' '-m' "autofsck$value")
 
 	echo "testing ${mkfs_args[*]}" >> $seqres.full
 
@@ -54,7 +50,6 @@ testme() {
 }
 
 testme ''
-testme
 testme none
 testme check
 testme optimize
diff --git a/tests/xfs/805.out b/tests/xfs/805.out
index 3d22f1b208e3e9..6224d70c4b1d7e 100644
--- a/tests/xfs/805.out
+++ b/tests/xfs/805.out
@@ -1,6 +1,5 @@
 QA output created by 805
 autofsck=repair
-failed to get attr xfs:autofsck on inode XXX: No data available
 autofsck=none
 autofsck=check
 autofsck=optimize

Re: [PATCH 3/3] xfs/805: adjust for new autofsck fsproperty defaults

[Christoph Hellwig]

On Mon, Mar 16, 2026 at 04:29:35PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
> 
> Now that mkfs will set autofsck=repair for filesystems that have both
> reverse space mappings and file parent pointers enabled, let's stop
> testing the "no autofsck option at all" scenario to avoid problems with
> older mkfs.

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>