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https://github.com/linux-apfs/apfstests.git
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Dave Chinner
cf89aed924
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
78 lines
1.9 KiB
Bash
Executable File
78 lines
1.9 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
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#
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# FS QA Test No. 289
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#
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# Ensuring that copy on write in buffered mode to the source file when the
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# CoW range covers unwritten and regular shared blocks.
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# - Create two files.
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# - fallocate the first file.
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# - Write the odd blocks of the first file.
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# - Reflink the odd blocks of the first file into the second file.
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# - CoW the first file across the halfway mark, starting with the
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# regular extent.
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# - Check that the files are now different where we say they're different.
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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.*
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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_scratch_reflink
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_require_xfs_io_command "falloc"
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rm -f $seqres.full
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echo "Format and mount"
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_scratch_mkfs > $seqres.full 2>&1
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_scratch_mount >> $seqres.full 2>&1
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testdir=$SCRATCH_MNT/test-$seq
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mkdir $testdir
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echo "Create the original files"
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blksz=65536
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nr=64
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filesize=$((blksz * nr))
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_sweave_reflink_unwritten $blksz $nr $testdir/file1 $testdir/file3 >> $seqres.full
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_scratch_cycle_mount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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md5sum $testdir/file3 | _filter_scratch
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md5sum $testdir/file1.chk | _filter_scratch
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echo "CoW across the transition"
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cowoff=$((filesize / 4))
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cowsz=$((filesize / 2))
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$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $cowsz $cowoff $cowsz" $testdir/file1 >> $seqres.full
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_pwrite_byte 0x63 $cowoff $cowsz $testdir/file1.chk >> $seqres.full
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_scratch_cycle_mount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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md5sum $testdir/file3 | _filter_scratch
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md5sum $testdir/file1.chk | _filter_scratch
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# success, all done
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status=0
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exit
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