mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
1b3dc467e4
Add more tests for unaligned copy-on-write things, and explicitly test the ability to pass "len == 0" to mean reflink/dedupe all the way to the end of the file". Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
78 lines
2.0 KiB
Bash
Executable File
78 lines
2.0 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 178
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#
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# Ensure that punch-hole doesn't clobber CoW.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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seq=`basename "$0"`
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seqres="$RESULT_DIR/$seq"
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -rf "$tmp".* "$TESTDIR"
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/reflink
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# real QA test starts here
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_supported_os Linux
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_require_test_reflink
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_require_cp_reflink
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_require_xfs_io_command "fpunch"
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rm -f "$seqres.full"
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TESTDIR="$TEST_DIR/test-$seq"
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rm -rf "$TESTDIR"
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mkdir "$TESTDIR"
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echo "Create the original files"
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BLKSZ=65536
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NR=512
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_pwrite_byte 0x61 0 $((BLKSZ * NR)) "$TESTDIR/file1" >> "$seqres.full"
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_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2"
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_test_remount
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md5sum "$TESTDIR/file1" | _filter_test_dir
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md5sum "$TESTDIR/file2" | _filter_test_dir
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echo "Write and punch"
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_pwrite_byte 0x62 0 $((BLKSZ * 256)) "$TESTDIR/file2" >> "$seqres.full"
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"$XFS_IO_PROG" -f -c "fpunch $BLKSZ $((BLKSZ * 254))" "$TESTDIR/file2"
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_test_remount
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echo "Compare results"
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md5sum "$TESTDIR/file1" | _filter_test_dir
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md5sum "$TESTDIR/file2" | _filter_test_dir
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# success, all done
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status=0
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exit
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