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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (c) 2022 Oracle. All Rights Reserved.
#
# FS QA Test No. 720
#
# Stress testing with a lot of extents.
. ./common/preamble
_begin_fstest auto quick fiexchange swapext
# Override the default cleanup function.
_cleanup()
{
cd /
rm -r -f $tmp.* $dir
}
# Import common functions.
. ./common/filter
# real QA test starts here
_require_xfs_io_command swapext '-v exchrange'
_require_test_program punch-alternating
_require_test
dir=$TEST_DIR/test-$seq
mkdir -p $dir
blksz=$(_get_file_block_size $TEST_DIR)
nrblks=$((LOAD_FACTOR * 100000))
_require_fs_space $TEST_DIR $(( (2 * blksz * nrblks) / 1024 ))
# Create some big swiss cheese files to test swapext with a lot of extents
_pwrite_byte 0x58 0 $((blksz * nrblks)) $dir/a >> $seqres.full
$here/src/punch-alternating $dir/a
_pwrite_byte 0x59 0 $((blksz * nrblks)) $dir/b >> $seqres.full
$here/src/punch-alternating -o 1 $dir/b
filefrag -v $dir/a $dir/b >> $seqres.full
# Now try to swapext
md5_a="$(md5sum < $dir/a)"
md5_b="$(md5sum < $dir/b)"
date >> $seqres.full
$XFS_IO_PROG -c "swapext $dir/b" $dir/a
date >> $seqres.full
echo "md5_a=$md5_a" >> $seqres.full
echo "md5_b=$md5_b" >> $seqres.full
md5sum $dir/a $dir/b >> $seqres.full
test "$(md5sum < $dir/b)" = "$md5_a" || echo "file b does not match former a"
test "$(md5sum < $dir/a)" = "$md5_b" || echo "file a does not match former b"
echo "Silence is golden!"
# success, all done
status=0
exit
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