xfs: make sure our default quota warning limits and grace periods survive quotacheck

Make sure that the default quota grace period and maximum warning limits
set by the administrator survive quotacheck.  This is a regression test
for 5885539f0af371 ("xfs: preserve default grace interval during
quotacheck").

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

tests/xfs/913

@@ -0,0 +1,69 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2020, Oracle and/or its affiliates.  All Rights Reserved.
+#
+# FS QA Test No. 913
+#
+# Make sure that the quota default grace period and maximum warning limits
+# survive quotacheck.
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1    # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+	cd /
+	rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/quota
+
+# real QA test starts here
+_supported_fs xfs
+_supported_os Linux
+_require_quota
+
+rm -f $seqres.full
+
+# Format filesystem and set up quota limits
+_scratch_mkfs > $seqres.full
+_qmount_option "usrquota"
+_scratch_mount >> $seqres.full
+
+$XFS_QUOTA_PROG -x -c 'timer -u 300m' $SCRATCH_MNT
+$XFS_QUOTA_PROG -x -c 'state' $SCRATCH_MNT | grep 'grace time'
+_scratch_unmount
+
+# Remount and check the limits
+_scratch_mount >> $seqres.full
+$XFS_QUOTA_PROG -x -c 'state' $SCRATCH_MNT | grep 'grace time'
+_scratch_unmount
+
+# Run repair to force quota check
+_scratch_xfs_repair >> $seqres.full 2>&1
+
+# Remount (this time to run quotacheck) and check the limits.  There's a bug
+# in quotacheck where we would reset the ondisk default grace period to zero
+# while the incore copy stays at whatever was read in prior to quotacheck.
+# This will show up after the /next/ remount.
+_scratch_mount >> $seqres.full
+$XFS_QUOTA_PROG -x -c 'state' $SCRATCH_MNT | grep 'grace time'
+_scratch_unmount
+
+# Remount and check the limits
+_scratch_mount >> $seqres.full
+$XFS_QUOTA_PROG -x -c 'state' $SCRATCH_MNT | grep 'grace time'
+_scratch_unmount
+
+# success, all done
+status=0
+exit

tests/xfs/913.out

@@ -0,0 +1,13 @@
+QA output created by 913
+Blocks grace time: [0 days 05:00:00]
+Inodes grace time: [0 days 05:00:00]
+Realtime Blocks grace time: [0 days 05:00:00]
+Blocks grace time: [0 days 05:00:00]
+Inodes grace time: [0 days 05:00:00]
+Realtime Blocks grace time: [0 days 05:00:00]
+Blocks grace time: [0 days 05:00:00]
+Inodes grace time: [0 days 05:00:00]
+Realtime Blocks grace time: [0 days 05:00:00]
+Blocks grace time: [0 days 05:00:00]
+Inodes grace time: [0 days 05:00:00]
+Realtime Blocks grace time: [0 days 05:00:00]

tests/xfs/group

@@ -514,4 +514,5 @@
 514 auto quick db
 515 auto quick quota
 755 auto quick fsmap freeze
+913 auto quick quota
 914 auto quick reflink