[PATCH v2 2/2] xfs: online grow vs. log recovery stress test (realtime version)

[Brian Foster <bfoster@redhat.com>]

This is fundamentally the same as the previous growfs vs. log
recovery test, with tweaks to support growing the XFS realtime
volume on such configurations. Changes include using the appropriate
mkfs params, growfs params, and enabling realtime inheritance on the
scratch fs.

Signed-off-by: Brian Foster <bfoster@redhat.com>
---
 tests/xfs/610     | 83 +++++++++++++++++++++++++++++++++++++++++++++++
 tests/xfs/610.out |  2 ++
 2 files changed, 85 insertions(+)
 create mode 100755 tests/xfs/610
 create mode 100644 tests/xfs/610.out

diff --git a/tests/xfs/610 b/tests/xfs/610
new file mode 100755
index 00000000..6d3a526f
--- /dev/null
+++ b/tests/xfs/610
@@ -0,0 +1,83 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2024 Red Hat, Inc.  All Rights Reserved.
+#
+# FS QA Test No. 610
+#
+# Test XFS online growfs log recovery.
+#
+. ./common/preamble
+_begin_fstest auto growfs stress shutdown log recoveryloop
+
+# Import common functions.
+. ./common/filter
+
+_stress_scratch()
+{
+	procs=4
+	nops=999999
+	# -w ensures that the only ops are ones which cause write I/O
+	FSSTRESS_ARGS=`_scale_fsstress_args -d $SCRATCH_MNT -w -p $procs \
+	    -n $nops $FSSTRESS_AVOID`
+	$FSSTRESS_PROG $FSSTRESS_ARGS >> $seqres.full 2>&1 &
+}
+
+_require_scratch
+_require_realtime
+_require_command "$XFS_GROWFS_PROG" xfs_growfs
+_require_command "$KILLALL_PROG" killall
+
+_cleanup()
+{
+	$KILLALL_ALL fsstress > /dev/null 2>&1
+	wait
+	cd /
+	rm -f $tmp.*
+}
+
+_scratch_mkfs_xfs | _filter_mkfs >$seqres.full 2>$tmp.mkfs
+. $tmp.mkfs	# extract blocksize and data size for scratch device
+
+endsize=`expr 550 \* 1048576`	# stop after growing this big
+[ `expr $endsize / $dbsize` -lt $dblocks ] || _notrun "Scratch device too small"
+
+nags=4
+size=`expr 125 \* 1048576`	# 120 megabytes initially
+sizeb=`expr $size / $dbsize`	# in data blocks
+logblks=$(_scratch_find_xfs_min_logblocks -rsize=${size} -dagcount=${nags})
+
+_scratch_mkfs_xfs -lsize=${logblks}b -rsize=${size} -dagcount=${nags} \
+	>> $seqres.full || _fail "mkfs failed"
+_scratch_mount
+_xfs_force_bdev realtime $SCRATCH_MNT &> /dev/null
+
+# Grow the filesystem in random sized chunks while stressing and performing
+# shutdown and recovery. The randomization is intended to create a mix of sub-ag
+# and multi-ag grows.
+while [ $size -le $endsize ]; do
+	echo "*** stressing a ${sizeb} block filesystem" >> $seqres.full
+	_stress_scratch
+	incsize=$((RANDOM % 40 * 1048576))
+	size=`expr $size + $incsize`
+	sizeb=`expr $size / $dbsize`	# in data blocks
+	echo "*** growing to a ${sizeb} block filesystem" >> $seqres.full
+	$XFS_GROWFS_PROG -R ${sizeb} $SCRATCH_MNT >> $seqres.full
+
+	sleep $((RANDOM % 3))
+	_scratch_shutdown
+	ps -e | grep fsstress > /dev/null 2>&1
+	while [ $? -eq 0 ]; do
+		$KILLALL_PROG -9 fsstress > /dev/null 2>&1
+		wait > /dev/null 2>&1
+		ps -e | grep fsstress > /dev/null 2>&1
+	done
+	_scratch_cycle_mount || _fail "cycle mount failed"
+done > /dev/null 2>&1
+wait	# stop for any remaining stress processes
+
+_scratch_unmount
+
+echo Silence is golden.
+
+status=0
+exit
diff --git a/tests/xfs/610.out b/tests/xfs/610.out
new file mode 100644
index 00000000..c42a1cf8
--- /dev/null
+++ b/tests/xfs/610.out
@@ -0,0 +1,2 @@
+QA output created by 610
+Silence is golden.
-- 
2.46.2