[PATCH 01/13] xfs: fix tests that try to access the realtime rmap inode

Darrick J. Wong
2025-02-19T01:03:55Z

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

The realtime rmap tests were added to fstests a long time ago. Since
they were added, we decided to create a metadata file directory
structure instead of adding more fields to the superblock. Therefore,
fix all the tests that try to access these paths.

While we're at it, fix xfs/409 to run the *online* scrub program like
it's supposed to. xfs/408 is the fuzzer for xfs_repair testing.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
common/xfs | 41 +++++++++++++++++++++++++++++++++++++++++
tests/xfs/122.out | 1 -
tests/xfs/333 | 43 -------------------------------------------
tests/xfs/333.out | 6 ------
tests/xfs/337 | 2 +-
tests/xfs/338 | 30 +++++++++++++++++++++++++-----
tests/xfs/339 | 5 +++--
tests/xfs/340 | 25 ++++++++++++++++++++-----
tests/xfs/341 | 2 +-
tests/xfs/342 | 4 ++--
10 files changed, 93 insertions(+), 66 deletions(-)
delete mode 100755 tests/xfs/333
delete mode 100644 tests/xfs/333.out

diff --git a/common/xfs b/common/xfs
index adad37ea0710e0..1a0ececde39422 100644
--- a/common/xfs
+++ b/common/xfs
@@ -2135,3 +2135,44 @@ _require_xfs_rtquota_if_rtdev() {
_notrun "Quotas probably not supported on realtime scratch device; set TEST_RTDEV"
fi
}
+
+# Resolve a metadata directory tree path and return the inode number.
+_scratch_metadir_lookup() {
+ local res="$(_scratch_xfs_db -c "ls -i -m $1")"
+ test "${PIPESTATUS[0]}" -eq 0 && echo "$res"
+}
+
+# Figure out which directory entry we have to change to update the rtrmap
+# inode pointer. The last line of output is inumber field within a metadata
+# object; any previous lines are the accessor commands that must be fed to
+# xfs_db to get to the correct directory block.
+_scratch_find_rt_metadir_entry() {
+ local sfkey="$(_scratch_xfs_db -c 'path -m /rtgroups' -c print | \
+ grep "\"$1\"" | \
+ sed -e 's/.name.*$//g' -e 's/\[/\\[/g' -e 's/\]/\\]/g' )"
+ if [ -n "$sfkey" ]; then
+ echo 'path -m /rtgroups'
+ _scratch_xfs_db -c 'path -m /rtgroups' -c print | \
+ grep "${sfkey}.inumber" | awk '{print $1}'
+ return 0
+ fi
+
+ local size=$(_scratch_xfs_db -c 'path -m /rtgroups' -c 'print core.size' | awk '{print $3}')
+ local blksz=$(_scratch_xfs_db -c 'sb 0' -c 'print blocksize' | awk '{print $3}')
+ local dirblklog=$(_scratch_xfs_db -c 'sb 0' -c 'print dirblklog' | awk '{print $3}')
+ local dirblksz=$((blksz << dirblklog ))
+ for ((fileoff = 0; fileoff < (size / dirblksz); fileoff++)); do
+ local dbkey="$(_scratch_xfs_db -c 'path -m /rtgroups' -c "dblock $fileoff" -c 'print' | \
+ grep "\"$1\"" | \
+ sed -e 's/.name.*$//g' -e 's/\[/\\[/g' -e 's/\]/\\]/g' )"
+ if [ -n "$dbkey" ]; then
+ echo 'path -m /rtgroups'
+ echo "dblock $fileoff"
+ _scratch_xfs_db -c 'path -m /rtgroups' -c "dblock $fileoff" -c print | \
+ grep "${dbkey}.inumber" | awk '{print $1}'
+ return 0
+ fi
+ done
+
+ return 1
+}
diff --git a/tests/xfs/122.out b/tests/xfs/122.out
index 4dc7d7d0a3602b..ec5028621a8e75 100644
--- a/tests/xfs/122.out
+++ b/tests/xfs/122.out
@@ -44,7 +44,6 @@ offsetof(xfs_sb_t, sb_rextents) = 24
offsetof(xfs_sb_t, sb_rextsize) = 80
offsetof(xfs_sb_t, sb_rextslog) = 125
offsetof(xfs_sb_t, sb_rootino) = 56
-offsetof(xfs_sb_t, sb_rrmapino) = 264
offsetof(xfs_sb_t, sb_rsumino) = 72
offsetof(xfs_sb_t, sb_sectlog) = 121
offsetof(xfs_sb_t, sb_sectsize) = 102
diff --git a/tests/xfs/333 b/tests/xfs/333
deleted file mode 100755
index f68f2f01320420..00000000000000
--- a/tests/xfs/333
+++ /dev/null
@@ -1,43 +0,0 @@
-#! /bin/bash
-# SPDX-License-Identifier: GPL-2.0
-# Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
-#
-# FS QA Test No. 333
-#
-# Set rrmapino to another inode on an non-rt rmap fs and see if repair fixes it.
-#
-. ./common/preamble
-_begin_fstest auto quick rmap realtime
-
-# Import common functions.
-. ./common/filter
-
-_require_xfs_scratch_rmapbt
-_disable_dmesg_check
-
-rm -f "$seqres.full"
-
-unset SCRATCH_RTDEV
-
-echo "Format and mount"
-_scratch_mkfs > "$seqres.full" 2>&1
-rrmapino="$(_scratch_xfs_db -c 'sb 0' -c 'p rrmapino' 2>&1)"
-test "${rrmapino}" = "field rrmapino not found" && _notrun "realtime rmapbt not supported"
-_scratch_mount
-
-echo "Create some files"
-$XFS_IO_PROG -f -c "pwrite -S 0x68 0 9999" $SCRATCH_MNT/f1 >> $seqres.full
-$XFS_IO_PROG -f -c "pwrite -S 0x68 0 9999" $SCRATCH_MNT/f2 >> $seqres.full
-echo garbage > $SCRATCH_MNT/f3
-ino=$(stat -c '%i' $SCRATCH_MNT/f3)
-_scratch_unmount
-
-echo "Corrupt fs"
-_scratch_xfs_db -x -c 'sb 0' -c "write rrmapino $ino" >> $seqres.full
-_try_scratch_mount 2>&1 | _filter_error_mount
-
-echo "Test done, mount should have failed"
-
-# success, all done
-status=0
-exit
diff --git a/tests/xfs/333.out b/tests/xfs/333.out
deleted file mode 100644
index b3c698750f8fb1..00000000000000
--- a/tests/xfs/333.out
+++ /dev/null
@@ -1,6 +0,0 @@
-QA output created by 333
-Format and mount
-Create some files
-Corrupt fs
-mount: Structure needs cleaning
-Test done, mount should have failed
diff --git a/tests/xfs/337 b/tests/xfs/337
index 2ba508044ba16b..64429347fcba70 100755
--- a/tests/xfs/337
+++ b/tests/xfs/337
@@ -51,7 +51,7 @@ echo "+ check fs"
_scratch_xfs_repair -n >> $seqres.full 2>&1 || echo "xfs_repair should not fail"

echo "+ corrupt image"
-_scratch_xfs_db -x -c "sb" -c "addr rrmapino" -c "addr u3.rtrmapbt.ptrs[1]" \
+_scratch_xfs_db -x -c "path -m /rtgroups/0.rmap" -c "addr u3.rtrmapbt.ptrs[1]" \
-c "stack" -c "blocktrash -x 4096 -y 4096 -n 8 -3 -z" \
>> $seqres.full 2>&1

diff --git a/tests/xfs/338 b/tests/xfs/338
index 9648c9df485223..713a808dc8e3da 100755
--- a/tests/xfs/338
+++ b/tests/xfs/338
@@ -27,13 +27,33 @@ $XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 9999" $SCRATCH_MNT/f2 >> $seqres.full
_scratch_unmount

echo "Corrupt fs"
-_scratch_xfs_db -x -c 'sb 0' -c 'addr rrmapino' \
- -c 'write core.nlinkv2 0' -c 'write core.mode 0' -c 'sb 0' \
- -c 'write rrmapino 0' >> $seqres.full
-_try_scratch_mount >> $seqres.full 2>&1 && echo "mount should have failed"
+readarray -t rtrmap_path < <(_scratch_find_rt_metadir_entry 0.rmap)
+
+rtrmap_accessors=()
+rtrmap_path_len="${#rtrmap_path[@]}"
+for ((i = 0; i < rtrmap_path_len - 1; i++)); do
+ rtrmap_accessors+=(-c "${rtrmap_path[i]}")
+done
+rtrmap_entry="${rtrmap_path[rtrmap_path_len - 1]}"
+test -n "$rtrmap_entry" || _fail "Could not find rtrmap metadir entry?"
+
+_scratch_xfs_db -x -c 'path -m /rtgroups/0.rmap' \
+ -c 'write core.nlinkv2 0' -c 'write core.mode 0' \
+ "${rtrmap_accessors[@]}" \
+ -c "print $rtrmap_entry" \
+ -c "write -d $rtrmap_entry 0" >> $seqres.full
+if _try_scratch_mount >> $seqres.full 2>&1; then
+ echo "mount should have failed"
+ _scratch_unmount
+else
+ # If the verifiers are working properly, the mount will fail because
+ # we fuzzed the metadata root directory. This causes loud complaints
+ # to dmesg, so we want to ignore those.
+ _disable_dmesg_check
+fi

echo "Repair fs"
-_scratch_unmount 2>&1 | _filter_scratch
+_scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot
_repair_scratch_fs >> $seqres.full 2>&1

echo "Try to create more files (again)"
diff --git a/tests/xfs/339 b/tests/xfs/339
index 4dabe43ff298fc..caadf87987e433 100755
--- a/tests/xfs/339
+++ b/tests/xfs/339
@@ -29,7 +29,8 @@ ln $SCRATCH_MNT/f3 $SCRATCH_MNT/f4
_scratch_unmount

echo "Corrupt fs"
-rrmapino=`_scratch_xfs_get_sb_field rrmapino`
+rrmapino=$(_scratch_metadir_lookup /rtgroups/0.rmap)
+test -n "$rrmapino" || _fail "Could not find rtrmap inode?"
_scratch_xfs_set_metadata_field "u3.sfdir3.list[3].inumber.i4" $rrmapino \
'sb 0' 'addr rootino' >> $seqres.full
_scratch_mount
@@ -41,7 +42,7 @@ echo "Try to create more files"
$XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 9999" $SCRATCH_MNT/f5 >> $seqres.full 2>&1

echo "Repair fs"
-_scratch_unmount 2>&1 | _filter_scratch
+_scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot
_repair_scratch_fs >> $seqres.full 2>&1

echo "Try to create more files (again)"
diff --git a/tests/xfs/340 b/tests/xfs/340
index 248d3233c94ed3..c4a23bcb1cfe70 100755
--- a/tests/xfs/340
+++ b/tests/xfs/340
@@ -29,16 +29,31 @@ ino=$(stat -c '%i' $SCRATCH_MNT/f3)
_scratch_unmount

echo "Corrupt fs"
-rrmapino=$(_scratch_xfs_get_sb_field rrmapino)
-_scratch_xfs_db -x -c "inode $rrmapino" \
+readarray -t rtrmap_path < <(_scratch_find_rt_metadir_entry 0.rmap)
+
+rtrmap_accessors=()
+rtrmap_path_len="${#rtrmap_path[@]}"
+for ((i = 0; i < rtrmap_path_len - 1; i++)); do
+ rtrmap_accessors+=(-c "${rtrmap_path[i]}")
+done
+rtrmap_entry="${rtrmap_path[rtrmap_path_len - 1]}"
+test -n "$rtrmap_entry" || _fail "Could not find rtrmap metadir entry?"
+
+rrmapino=$(_scratch_metadir_lookup /rtgroups/0.rmap)
+test -n "$rrmapino" || _fail "Could not find rtrmap inode?"
+_scratch_xfs_db -x -c "path -m /rtgroups/0.rmap" \
-c 'write core.format 2' -c 'write core.size 0' \
- -c 'write core.nblocks 0' -c 'sb 0' -c 'addr rootino' \
+ -c 'write core.nblocks 0' \
+ -c 'sb 0' -c 'addr rootino' \
+ -c "print u3.sfdir3.list[2].inumber" \
-c "write u3.sfdir3.list[2].inumber.i4 $rrmapino" \
- -c 'sb 0' -c "write rrmapino $ino" >> $seqres.full
+ "${rtrmap_accessors[@]}" \
+ -c "print $rtrmap_entry" \
+ -c "write $rtrmap_entry $ino" >> $seqres.full
_try_scratch_mount >> $seqres.full 2>&1 && echo "mount should have failed"

echo "Repair fs"
-_scratch_unmount 2>&1 | _filter_scratch
+_scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot
_repair_scratch_fs >> $seqres.full 2>&1

echo "Try to create more files (again)"
diff --git a/tests/xfs/341 b/tests/xfs/341
index 9b12febf8d5c49..e9aea42f429ffd 100755
--- a/tests/xfs/341
+++ b/tests/xfs/341
@@ -51,7 +51,7 @@ echo "Corrupt fs"
fsbno=$(_scratch_xfs_db -c "inode $ino" -c 'bmap' | grep 'flag 0' | head -n 1 | \
sed -e 's/^.*startblock \([0-9]*\) .*$/\1/g')

-_scratch_xfs_db -x -c 'sb 0' -c 'addr rrmapino' \
+_scratch_xfs_db -x -c 'path -m /rtgroups/0.rmap' \
-c "write u3.rtrmapbt.ptrs[1] $fsbno" -c 'p' >> $seqres.full
_scratch_mount

diff --git a/tests/xfs/342 b/tests/xfs/342
index 5c0e916dbe32ac..3bf353dd79b29b 100755
--- a/tests/xfs/342
+++ b/tests/xfs/342
@@ -45,9 +45,9 @@ ino=$(stat -c '%i' $SCRATCH_MNT/f3)
_scratch_unmount

echo "Corrupt fs"
-_scratch_xfs_db -c 'sb 0' -c 'addr rrmapino' -c 'p u3.rtrmapbt.ptrs[1]' >> $seqres.full
+_scratch_xfs_db -c 'path -m /rtgroups/0.rmap' -c 'p u3.rtrmapbt.ptrs[1]' >> $seqres.full

-fsbno=$(_scratch_xfs_db -c 'sb 0' -c 'addr rrmapino' \
+fsbno=$(_scratch_xfs_db -c 'path -m /rtgroups/0.rmap' \
-c 'p u3.rtrmapbt.ptrs[1]' | sed -e 's/^.*://g')
_scratch_xfs_db -x -c "inode $ino" -c "write u3.bmx[0].startblock $fsbno" >> $seqres.full
_scratch_mount