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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
#
# FS QA Test No. 210
#
# During reflink, XFS should carry the cowextsz setting to the destination file
# if the destination file size is less than the size of the source file, the
# length is the size of the source file, both offsets are zero, and the
# destination does not already have a cowextsz setting. It should not do so
# otherwise.
#
. ./common/preamble
_begin_fstest auto quick clone fiemap
# Import common functions.
. ./common/filter
. ./common/reflink
# real QA test starts here
_supported_fs xfs
_require_scratch_reflink
_require_cp_reflink
_require_xfs_io_command "fiemap"
_require_xfs_io_command "cowextsize"
echo "Format and mount"
_scratch_mkfs > $seqres.full 2>&1
_scratch_mount >> $seqres.full 2>&1
_require_congruent_file_oplen $SCRATCH_MNT 65536
testdir=$SCRATCH_MNT/test-$seq
mkdir $testdir
echo "Create initial file"
$XFS_IO_PROG -f -c "pwrite -S 0x61 0 131072" $testdir/file1 >> $seqres.full
$XFS_IO_PROG -c "cowextsize 1048576" $testdir/file1 >> $seqres.full
$XFS_IO_PROG -f -c "pwrite -S 0x61 0 1" $testdir/file4 >> $seqres.full
$XFS_IO_PROG -f -c "pwrite -S 0x61 0 262144" $testdir/file7 >> $seqres.full
$XFS_IO_PROG -f -c "pwrite -S 0x61 0 262144" $testdir/file9 >> $seqres.full
$XFS_IO_PROG -f -c "pwrite -S 0x61 0 262144" $testdir/file10 >> $seqres.full
echo "Reflink to an empty file"
_reflink_range $testdir/file1 0 $testdir/file2 0 0 >> $seqres.full
echo "Reflink to an empty file that already has cowextsz"
$XFS_IO_PROG -f -c "cowextsize 524288" $testdir/file3 >> $seqres.full
_reflink_range $testdir/file1 0 $testdir/file3 0 0 >> $seqres.full
echo "Reflink to a small file"
_reflink_range $testdir/file1 0 $testdir/file4 0 0 >> $seqres.full
echo "Reflink to a nonzero offset"
_reflink_range $testdir/file1 0 $testdir/file5 65536 0 >> $seqres.full
echo "Reflink from a nonzero offset"
_reflink_range $testdir/file1 65536 $testdir/file6 0 0 >> $seqres.full
echo "Reflink to a larger file"
_reflink_range $testdir/file1 0 $testdir/file7 0 0 >> $seqres.full
echo "Reflink less than the whole source file"
_reflink_range $testdir/file1 0 $testdir/file8 0 65536 >> $seqres.full
echo "cp reflink to a larger file"
_cp_reflink $testdir/file1 $testdir/file9 >> $seqres.full
echo "cp reflink to a larger file with cowextsize"
$XFS_IO_PROG -f -c "cowextsize 524288" $testdir/file10 >> $seqres.full
_cp_reflink $testdir/file1 $testdir/file10 >> $seqres.full
echo "Check cowextsz"
for i in `seq 1 10`; do
$XFS_IO_PROG -c "cowextsize" $testdir/file$i | _filter_scratch
done
# success, all done
status=0
exit
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