| #! /bin/bash |
| # FS QA Test No. 139 |
| # |
| # Ensuring that copy on write in direct-io mode works: |
| # - Reflink two files together |
| # - Write to the beginning, middle, and end in direct-io mode |
| # - Check that the files are now different where we say they're different. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it would be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| #----------------------------------------------------------------------- |
| |
| seq=`basename $0` |
| seqres=$RESULT_DIR/$seq |
| echo "QA output created by $seq" |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| _cleanup() |
| { |
| cd / |
| rm -rf $tmp.* $testdir |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/reflink |
| |
| # real QA test starts here |
| _supported_os Linux |
| _require_test_reflink |
| _require_cp_reflink |
| _require_odirect |
| |
| rm -f $seqres.full |
| |
| testdir=$TEST_DIR/test-$seq |
| rm -rf $testdir |
| mkdir $testdir |
| |
| echo "Create the original files" |
| blksz=65536 |
| _pwrite_byte 0x61 0 $((blksz * 48 - 3)) $testdir/file1 >> $seqres.full |
| _cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full |
| _pwrite_byte 0x61 0 $((blksz * 48 - 3)) $testdir/file3 >> $seqres.full |
| _test_cycle_mount |
| |
| echo "Compare files" |
| md5sum $testdir/file1 | _filter_test_dir |
| md5sum $testdir/file2 | _filter_test_dir |
| md5sum $testdir/file3 | _filter_test_dir |
| |
| cmp -s $testdir/file1 $testdir/file2 || echo "Files 1-2 should match" |
| cmp -s $testdir/file1 $testdir/file3 || echo "Files 1-3 should match" |
| cmp -s $testdir/file2 $testdir/file3 || echo "Files 2-3 should match" |
| |
| echo "directio CoW the second file" |
| _pwrite_byte 0x62 0 $blksz $testdir/file2 -d >> $seqres.full |
| _pwrite_byte 0x62 0 $blksz $testdir/file3 -d >> $seqres.full |
| |
| _pwrite_byte 0x62 $((blksz * 16 - 512)) 512 $testdir/file2 -d >> $seqres.full |
| _pwrite_byte 0x62 $((blksz * 16 - 512)) 512 $testdir/file3 -d >> $seqres.full |
| |
| _pwrite_byte 0x62 $((blksz * 48)) $blksz $testdir/file2 -d >> $seqres.full |
| _pwrite_byte 0x62 $((blksz * 48)) $blksz $testdir/file3 -d >> $seqres.full |
| _test_cycle_mount |
| |
| echo "Compare files" |
| md5sum $testdir/file1 | _filter_test_dir |
| md5sum $testdir/file2 | _filter_test_dir |
| md5sum $testdir/file3 | _filter_test_dir |
| |
| cmp -s $testdir/file1 $testdir/file2 || echo "Files 1-2 should not match (intentional)" |
| cmp -s $testdir/file1 $testdir/file3 || echo "Files 1-3 should not match (intentional)" |
| cmp -s $testdir/file2 $testdir/file3 || echo "Files 2-3 should match" |
| |
| echo "Compare the CoW'd section to the before file" |
| _compare_range $testdir/file1 0 $testdir/file2 0 $blksz \ |
| || echo "Start sections do not match (intentional)" |
| |
| _compare_range $testdir/file1 $((blksz * 16 - 512)) \ |
| $testdir/file2 $((blksz * 16 - 512)) 512 \ |
| || echo "Middle sections do not match (intentional)" |
| |
| _compare_range $testdir/file1 $((blksz * 48 - 512)) \ |
| $testdir/file2 $((blksz * 48 - 512)) $blksz \ |
| || echo "End sections do not match (intentional)" |
| |
| echo "Compare the CoW'd section to the after file" |
| _compare_range $testdir/file2 0 $testdir/file3 0 $blksz \ |
| || echo "Start sections do not match" |
| |
| _compare_range $testdir/file2 $((blksz * 16 - 512)) \ |
| $testdir/file3 $((blksz * 16 - 512)) 512 \ |
| || echo "Middle sections do not match" |
| |
| _compare_range $testdir/file2 $((blksz * 48 - 512)) \ |
| $testdir/file3 $((blksz * 48 - 512)) $blksz \ |
| || echo "End sections do not match" |
| |
| echo "Compare the not CoW'd sections" |
| _compare_range $testdir/file1 $blksz $testdir/file2 $blksz 512 \ |
| || echo "Start sections of 1-2 do not match" |
| _compare_range $testdir/file2 $blksz $testdir/file3 $blksz 512 \ |
| || echo "Start sections of 2-3 do not match" |
| |
| |
| _compare_range $testdir/file1 $((blksz * 16 - 1024)) \ |
| $testdir/file2 $((blksz * 16 - 1024)) 512 \ |
| || echo "Middle sections of 1-2 do not match" |
| |
| _compare_range $testdir/file2 $((blksz * 16 - 1024)) \ |
| $testdir/file3 $((blksz * 16 - 1024)) 512 \ |
| || echo "Middle sections of 2-3 do not match" |
| |
| _compare_range $testdir/file1 $((blksz * 48 - 1024)) \ |
| $testdir/file2 $((blksz * 48 - 1024)) 512 \ |
| || echo "End sections of 1-2 do not match" |
| |
| _compare_range $testdir/file2 $((blksz * 48 - 1024)) \ |
| $testdir/file3 $((blksz * 48 - 1024)) 512 \ |
| || echo "End sections of 2-3 do not match" |
| |
| |
| _compare_range $testdir/file1 $((blksz * 16)) \ |
| $testdir/file2 $((blksz * 16)) 512 \ |
| || echo "Untouched sections of 1-2 do not match" |
| |
| _compare_range $testdir/file2 $((blksz * 16)) \ |
| $testdir/file3 $((blksz * 16)) 512 \ |
| || echo "Untouched sections of 2-3 do not match" |
| |
| # success, all done |
| status=0 |
| exit |