mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
2616587012
Fix style problems such as unnecessary use of quotes, add helper variables to reduce visual clutter, and other minor fixes to make the first batch of tests more closely resemble the second round tests. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
153 lines
5.0 KiB
Bash
Executable File
153 lines
5.0 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 138
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#
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# Ensuring that copy on write through the page cache works:
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# - Reflink two files together
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# - Write to the beginning, middle, and end
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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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#-----------------------------------------------------------------------
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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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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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_pwrite_byte 0x61 0 $((blksz * 48 - 3)) $testdir/file1 >> $seqres.full
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_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
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_pwrite_byte 0x61 0 $((blksz * 48 - 3)) $testdir/file3 >> $seqres.full
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_test_remount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_test_dir
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md5sum $testdir/file2 | _filter_test_dir
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md5sum $testdir/file3 | _filter_test_dir
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cmp -s $testdir/file1 $testdir/file2 || echo "Files 1-2 do not match"
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cmp -s $testdir/file1 $testdir/file3 || echo "Files 1-3 do not match"
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cmp -s $testdir/file2 $testdir/file3 || echo "Files 2-3 do not match"
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echo "pagecache CoW the second file"
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_pwrite_byte 0x62 0 17 $testdir/file2 >> $seqres.full
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_pwrite_byte 0x62 0 17 $testdir/file3 >> $seqres.full
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_pwrite_byte 0x62 $((blksz * 16 - 34)) 17 $testdir/file2 >> $seqres.full
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_pwrite_byte 0x62 $((blksz * 16 - 34)) 17 $testdir/file3 >> $seqres.full
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_pwrite_byte 0x62 $((blksz * 48 - 8)) 17 $testdir/file2 >> $seqres.full
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_pwrite_byte 0x62 $((blksz * 48 - 8)) 17 $testdir/file3 >> $seqres.full
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_test_remount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_test_dir
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md5sum $testdir/file2 | _filter_test_dir
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md5sum $testdir/file3 | _filter_test_dir
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cmp -s $testdir/file1 $testdir/file2 || echo "Files 1-2 do not match (intentional)"
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cmp -s $testdir/file1 $testdir/file3 || echo "Files 1-3 do not match (intentional)"
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cmp -s $testdir/file2 $testdir/file3 || echo "Files 2-3 do not match"
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echo "Compare the CoW'd section to the before file"
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_compare_range $testdir/file1 0 $testdir/file2 0 17 \
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|| echo "Start sections do not match (intentional)"
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_compare_range $testdir/file1 $((blksz * 16 - 34)) \
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$testdir/file2 $((blksz * 16 - 34)) 17 \
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|| echo "Middle sections do not match (intentional)"
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_compare_range $testdir/file1 $((blksz * 48 - 8)) \
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$testdir/file2 $((blksz * 48 - 8)) 17 \
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|| echo "End sections do not match (intentional)"
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echo "Compare the CoW'd section to the after file"
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_compare_range $testdir/file2 0 $testdir/file3 0 17 \
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|| echo "Start sections do not match"
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_compare_range $testdir/file2 $((blksz * 16 - 34)) \
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$testdir/file3 $((blksz * 16 - 34)) 17 \
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|| echo "Middle sections do not match"
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_compare_range $testdir/file2 $((blksz * 48 - 8)) \
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$testdir/file3 $((blksz * 48 - 8)) 17 \
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|| echo "End sections do not match"
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echo "Compare the not CoW'd sections"
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_compare_range $testdir/file1 18 $testdir/file2 18 17 \
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|| echo "Start sections of 1-2 do not match"
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_compare_range $testdir/file2 18 $testdir/file3 18 17 \
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|| echo "Start sections of 2-3 do not match"
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_compare_range $testdir/file1 $((blksz * 16 - 17)) \
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$testdir/file2 $((blksz * 16 - 17)) 82 \
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|| echo "Middle sections of 1-2 do not match"
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_compare_range $testdir/file2 $((blksz * 16 - 17)) \
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$testdir/file3 $((blksz * 16 - 17)) 82 \
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|| echo "Middle sections of 2-3 do not match"
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_compare_range $testdir/file1 $((blksz * 48 - 108)) \
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$testdir/file2 $((blksz * 48 - 108)) 100 \
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|| echo "End sections of 1-2 do not match"
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_compare_range $testdir/file2 $((blksz * 48 - 108)) \
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$testdir/file3 $((blksz * 48 - 108)) 100 \
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|| echo "End sections of 2-3 do not match"
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_compare_range $testdir/file1 $((blksz * 14)) \
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$testdir/file2 $((blksz * 14)) $blksz \
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|| echo "Untouched sections of 1-2 do not match"
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_compare_range $testdir/file2 $((blksz * 14)) \
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$testdir/file3 $((blksz * 14)) $blksz \
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|| echo "Untouched sections of 2-3 do not match"
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# success, all done
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status=0
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exit
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