tests/generic/304

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016, Oracle and/or its affiliates.  All Rights Reserved.
#
# FS QA Test No. 304
#
# Check that high-offset dedupes work.
#
. ./common/preamble
_begin_fstest auto quick clone dedupe

# Override the default cleanup function.
_cleanup()
{
    cd /
    rm -rf $tmp.* $testdir
}

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

_require_test_dedupe
_require_cp_reflink

echo "Format and mount"
testdir=$TEST_DIR/test-$seq
mkdir $testdir

echo "Create the original files"
bigoff=9223372036854775806
len=9223372036854775807
bigoff_64k=9223372036854710272	# bigoff rounded down to 64k
$XFS_IO_PROG -f -c "truncate $len" $testdir/file0 >> $seqres.full
test -s $testdir/file0 || _notrun "High offset ftruncate failed"
_pwrite_byte 0x61 $bigoff 1 $testdir/file1 >> $seqres.full
_pwrite_byte 0x61 $bigoff 1 $testdir/file3 >> $seqres.full
_pwrite_byte 0x61 1048575 1 $testdir/file2 >> $seqres.full

echo "Dedupe large single byte file"
_dedupe_range $testdir/file1 $bigoff_64k $testdir/file3 $bigoff_64k 65536 \
	2>&1 >> $seqres.full | _filter_dedupe_error

echo "Dedupe large empty file"
_dedupe_range $testdir/file0 0 $testdir/file4 0 $len \
	2>&1 >> $seqres.full | _filter_dedupe_error

echo "Dedupe past maximum file size in dest file (should fail)"
_dedupe_range $testdir/file1 0 $testdir/file5 4611686018427322368 $len \
	2>&1 >> $seqres.full | _filter_dedupe_error

echo "Dedupe high offset to low offset"
_dedupe_range $testdir/file1 $bigoff_64k $testdir/file6 1048576 65535 \
	2>&1 >> $seqres.full | _filter_dedupe_error

echo "Dedupe past source file EOF (should fail)"
_dedupe_range $testdir/file2 524288 $testdir/file7 0 1048576 \
	2>&1 >> $seqres.full | _filter_dedupe_error

echo "Dedupe max size at nonzero offset (should fail)"
_dedupe_range $testdir/file2 524288 $testdir/file8 0 $len \
	2>&1 >> $seqres.full | _filter_dedupe_error

echo "Dedupe with huge off/len (should fail)"
_dedupe_range $testdir/file2 $bigoff_64k $testdir/file9 0 $bigoff_64k \
	2>&1 >> $seqres.full | _filter_dedupe_error

echo "Check file creation"
_test_cycle_mount
echo "file3"
$XFS_IO_PROG -c "pread -v -q $bigoff 1" $testdir/file3
echo "file4"
$XFS_IO_PROG -c "pread -v -q $bigoff 1" $testdir/file4
# file5 should fail above
echo "file6"
$XFS_IO_PROG -c "pread -v -q 1114110 1" $testdir/file6
# file7 should fail above

# success, all done
status=0
exit