[PATCH v2 4/4] xfs: add parent pointer inject test

[Catherine Hoang <catherine.hoang@oracle.com>]

From: Allison Henderson <allison.henderson@oracle.com>

Add a test to verify parent pointers after an error injection and log
replay.

Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Catherine Hoang <catherine.hoang@oracle.com>
---
 tests/xfs/556     | 110 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/xfs/556.out |  14 ++++++
 2 files changed, 124 insertions(+)
 create mode 100755 tests/xfs/556
 create mode 100644 tests/xfs/556.out

diff --git a/tests/xfs/556 b/tests/xfs/556
new file mode 100755
index 00000000..47e55bd7
--- /dev/null
+++ b/tests/xfs/556
@@ -0,0 +1,110 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2022, Oracle and/or its affiliates.  All Rights Reserved.
+#
+# FS QA Test 556
+#
+# parent pointer inject test
+#
+. ./common/preamble
+_begin_fstest auto quick parent
+
+cleanup()
+{
+	cd /
+	rm -f $tmp.*
+}
+
+full()
+{
+    echo ""            >>$seqres.full
+    echo "*** $* ***"  >>$seqres.full
+    echo ""            >>$seqres.full
+}
+
+# get standard environment, filters and checks
+. ./common/filter
+. ./common/reflink
+. ./common/inject
+. ./common/parent
+
+# Modify as appropriate
+_supported_fs xfs
+_require_scratch
+_require_xfs_sysfs debug/larp
+_require_xfs_io_error_injection "larp"
+_require_xfs_parent
+_require_xfs_io_command "parent"
+
+# real QA test starts here
+
+# Create a directory tree using a protofile and
+# make sure all inodes created have parent pointers
+
+protofile=$tmp.proto
+
+cat >$protofile <<EOF
+DUMMY1
+0 0
+: root directory
+d--777 3 1
+: a directory
+testfolder1 d--755 3 1
+file1 ---755 3 1 /dev/null
+$
+: back in the root
+testfolder2 d--755 3 1
+file2 ---755 3 1 /dev/null
+: done
+$
+EOF
+
+if [ $? -ne 0 ]
+then
+    _fail "failed to create test protofile"
+fi
+
+_scratch_mkfs -f -n parent=1 -p $protofile >>$seqres.full 2>&1 \
+	|| _fail "mkfs failed"
+_check_scratch_fs
+
+_scratch_mount >>$seqres.full 2>&1 \
+	|| _fail "mount failed"
+
+testfolder1="testfolder1"
+testfolder2="testfolder2"
+file1="file1"
+file2="file2"
+file3="file3"
+file4="file4"
+file5="file5"
+file1_ln="file1_link"
+
+echo ""
+
+# Create files
+touch $SCRATCH_MNT/$testfolder1/$file4
+_verify_parent "$testfolder1" "$file4" "$testfolder1/$file4"
+
+# Inject error
+_scratch_inject_error "larp"
+
+# Move files
+mv $SCRATCH_MNT/$testfolder1/$file4 $SCRATCH_MNT/$testfolder2/$file5 2>&1 \
+	| _filter_scratch
+
+# FS should be shut down, touch will fail
+touch $SCRATCH_MNT/$testfolder2/$file5 2>&1 | _filter_scratch
+
+# Remount to replay log
+_scratch_remount_dump_log >> $seqres.full
+
+# FS should be online, touch should succeed
+touch $SCRATCH_MNT/$testfolder2/$file5
+
+# Check files again
+_verify_parent "$testfolder2" "$file5" "$testfolder2/$file5"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/556.out b/tests/xfs/556.out
new file mode 100644
index 00000000..812330ee
--- /dev/null
+++ b/tests/xfs/556.out
@@ -0,0 +1,14 @@
+QA output created by 556
+
+*** testfolder1 OK
+*** testfolder1/file4 OK
+*** testfolder1/file4 OK
+*** Verified parent pointer: name:file4, namelen:5
+*** Parent pointer OK for child testfolder1/file4
+mv: cannot stat 'SCRATCH_MNT/testfolder1/file4': Input/output error
+touch: cannot touch 'SCRATCH_MNT/testfolder2/file5': Input/output error
+*** testfolder2 OK
+*** testfolder2/file5 OK
+*** testfolder2/file5 OK
+*** Verified parent pointer: name:file5, namelen:5
+*** Parent pointer OK for child testfolder2/file5
-- 
2.25.1