#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Oracle, Inc.  All Rights Reserved.
#
# FS QA Test No. 440
#
# Regression test for a quota accounting bug when changing the owner of
# a file that has CoW reservations and no dirty pages.  The reservations
# should shift over to the new owner, but they do not.
#
. ./common/preamble
_begin_fstest auto quick clone quota

# Import common functions.
. ./common/reflink
. ./common/quota
. ./common/filter

# Modify as appropriate.
_supported_fs xfs

_require_quota
_require_scratch_delalloc
_require_scratch_reflink
_require_cp_reflink
_require_user

echo "Format and mount"
_scratch_mkfs > "$seqres.full" 2>&1
_scratch_mount "-o usrquota,grpquota" >> "$seqres.full" 2>&1

echo "Create files"
$XFS_IO_PROG -c "cowextsize 1m" $SCRATCH_MNT
touch $SCRATCH_MNT/a $SCRATCH_MNT/force_fsgqa
chown $qa_user $SCRATCH_MNT/a $SCRATCH_MNT/force_fsgqa
_pwrite_byte 0x58 0 64k $SCRATCH_MNT/a >> $seqres.full
$XFS_IO_PROG -c 'stat -r' $SCRATCH_MNT/a | grep stat.size >> $seqres.full
_report_quota_blocks "-u $SCRATCH_MNT"

echo "Reflink and CoW"
_cp_reflink $SCRATCH_MNT/a $SCRATCH_MNT/b
_pwrite_byte 0x59 0 64k $SCRATCH_MNT/a >> $seqres.full
$XFS_IO_PROG -c 'stat -r' $SCRATCH_MNT/a | grep stat.size >> $seqres.full
_report_quota_blocks "-u $SCRATCH_MNT"

echo "Sync"
sync
_report_quota_blocks "-u $SCRATCH_MNT"

echo "Chown and check quota"
chown root $SCRATCH_MNT/a
$XFS_IO_PROG -c 'stat -r' $SCRATCH_MNT/a | grep stat.size >> $seqres.full
_report_quota_blocks "-u $SCRATCH_MNT"

echo "Remount"
_scratch_unmount
_scratch_mount "-o usrquota,grpquota" >> "$seqres.full" 2>&1
$XFS_IO_PROG -c 'stat -r' $SCRATCH_MNT/a | grep stat.size >> $seqres.full
_report_quota_blocks "-u $SCRATCH_MNT"

# success, all done
status=0
exit