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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. 466
#
# Check that high-offset reads and writes work.
#
. ./common/preamble
_begin_fstest auto quick rw
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_scratch_nocheck
_require_block_device $SCRATCH_DEV
echo "Silence is golden"
# clear MKFS_OPTIONS which may contain user specified block size value, and
# _scratch_mkfs_sized will always use that value to create filesystem.
unset MKFS_OPTIONS
echo "Starting test" > $seqres.full
devsize=$(blockdev --getsize64 $SCRATCH_DEV)
for blocksize in 512 1024 2048 4096 8192 16384 32768 65536; do
echo "+ Format blocksize $blocksize and mount" >> $seqres.full
_scratch_unmount > /dev/null 2>&1
# Try to format and mount with the given blocksize. If they don't
# succeed, move on to the next block size.
if ! _try_scratch_mkfs_sized $devsize $blocksize >> $seqres.full 2>&1 ||
! _try_scratch_mount >> $seqres.full 2>&1 ||
test "$(stat -f -c '%S' $SCRATCH_MNT)" -ne "$blocksize"; then
echo "+++ Format and mount failed" >> $seqres.full
continue
fi
testdir=$SCRATCH_MNT/test-$seq
mkdir $testdir
echo "++ Create the original files" >> $seqres.full
bigoff=$(echo "2^63 - 2" | $BC_PROG)
len=$(echo "2^63 - 1" | $BC_PROG)
$XFS_IO_PROG -f -c "truncate $len" $testdir/file0 >> $seqres.full 2>&1
if [ ! -s $testdir/file0 ]; then
# If we can't set a large file size then don't bother
# with this blocksize because the fs doesn't support it.
echo "+++ High offset ftruncate failed" >> $seqres.full
continue
fi
_pwrite_byte 0x61 $bigoff 1 $testdir/file1 >> $seqres.full
echo "++ Check file creation" >> $seqres.full
_scratch_cycle_mount
expected="7ffffffffffffffe: 61 a"
actual="$($XFS_IO_PROG -c "pread -v -q $bigoff 1" $testdir/file1)"
if [ "$expected" = "$actual" ]; then
echo "+++ Success!" >> $seqres.full
else
echo "+++ Discrepancy @ blocksize $blocksize" >> $seqres.full
echo "Discrepancy @ blocksize $blocksize"
fi
echo "++ Check scratchfs" >> $seqres.full
_check_scratch_fs
done
# success, all done
status=0
exit
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