[RFC PATCH] xfs: make sure our default quota warning limits and grace periods survive quotacheck

["Darrick J. Wong" <darrick.wong@oracle.com>]

From: Darrick J. Wong <darrick.wong@oracle.com>

Make sure that the default quota grace period and maximum warning limits
set by the administrator survive quotacheck.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
This is the testcase to go with 'xfs: preserve default grace interval
during quotacheck', though Eric and I haven't figured out how we're
going to land that one...
---
 tests/xfs/913     |   69 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/xfs/913.out |   13 ++++++++++
 tests/xfs/group   |    1 +
 3 files changed, 83 insertions(+)
 create mode 100755 tests/xfs/913
 create mode 100644 tests/xfs/913.out

diff --git a/tests/xfs/913 b/tests/xfs/913
new file mode 100755
index 00000000..94681b02
--- /dev/null
+++ b/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
diff --git a/tests/xfs/913.out b/tests/xfs/913.out
new file mode 100644
index 00000000..ee989388
--- /dev/null
+++ b/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]
diff --git a/tests/xfs/group b/tests/xfs/group
index 056072fb..87b3c75d 100644
--- a/tests/xfs/group
+++ b/tests/xfs/group
@@ -539,4 +539,5 @@
 910 auto quick inobtcount
 911 auto quick bigtime
 912 auto quick label
+913 auto quick quota
 997 auto quick mount