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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2017, Oracle and/or its affiliates. All Rights Reserved.
#
# FS QA Test No. 435
#
# Ensure that we don't leak dquots when CoW recovery fails.
#
# Corrupt the refcount btree to ensure that the CoW garbage collection
# (and therefore the mount) fail.
#
# On a subsequent mount attempt, we should be able to release the quota
# inodes when we're aborting the mount. We also should not leak dquots.
#
. ./common/preamble
_begin_fstest auto quick clone
# Import common functions.
. ./common/filter
. ./common/attr
. ./common/reflink
. ./common/quota
. ./common/module
# real QA test starts here
_supported_fs xfs
_require_quota
_require_scratch_reflink
_require_cp_reflink
_disable_dmesg_check
rm -f "$seqres.full"
echo "Format and mount"
_scratch_mkfs > "$seqres.full" 2>&1
_scratch_mount -o quota >> "$seqres.full" 2>&1
testdir="$SCRATCH_MNT/test-$seq"
blksz=65536
blks=3
mkdir "$testdir"
echo "Create a many-block file"
_pwrite_byte 0x62 0 $((blksz * blks)) $testdir/file1 >> $seqres.full
_pwrite_byte 0x63 0 $blksz $testdir/file2 >> $seqres.full
_reflink_range $testdir/file2 0 $testdir/file1 $blksz $blksz >> $seqres.full
echo "Remount to check recovery" | _tee_kernlog
_scratch_unmount
_scratch_xfs_db -x -c 'agf 0' -c 'addr refcntroot' -c 'fuzz -d recs[1].startblock ones' >> $seqres.full
_scratch_xfs_db -x -c 'agf 0' -c 'addr refcntroot' -c p >> $seqres.full
_try_scratch_mount -o quota >> $seqres.full 2>&1
_scratch_unmount 2> /dev/null
rm -f ${RESULT_DIR}/require_scratch
echo "See if we leak"
_test_loadable_fs_module "xfs"
# success, all done
status=0
exit
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