| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 148 |
| # |
| # Ensure that truncating the last block in a reflinked file CoWs appropriately: |
| # - Create a file that doesn't end on a block boundary |
| # - Create two reflink clones of the file |
| # - Shorten one of the clones with truncate |
| # - Lengthen the other clone with truncate |
| # - Check that the reflinked areas are still there. |
| # |
| 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 |
| _require_test_reflink |
| _require_cp_reflink |
| _require_xfs_io_command "truncate" |
| |
| 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 $testdir/file1 >> $seqres.full |
| _pwrite_byte 0x62 $blksz 37 $testdir/file1 >> $seqres.full |
| |
| _cp_reflink $testdir/file1 $testdir/file2 |
| _cp_reflink $testdir/file1 $testdir/file3 |
| |
| _pwrite_byte 0x61 0 $blksz $testdir/file2.chk >> $seqres.full |
| _pwrite_byte 0x62 $blksz 34 $testdir/file2.chk >> $seqres.full |
| |
| _pwrite_byte 0x61 0 $blksz $testdir/file3.chk >> $seqres.full |
| _pwrite_byte 0x62 $blksz 37 $testdir/file3.chk >> $seqres.full |
| _pwrite_byte 0x00 $((blksz + 37)) 3 $testdir/file3.chk >> $seqres.full |
| _test_cycle_mount |
| |
| md5sum $testdir/file1 | _filter_test_dir |
| md5sum $testdir/file2 | _filter_test_dir |
| md5sum $testdir/file3 | _filter_test_dir |
| md5sum $testdir/file2.chk | _filter_test_dir |
| md5sum $testdir/file3.chk | _filter_test_dir |
| |
| c1=$(_md5_checksum $testdir/file1) |
| c2=$(_md5_checksum $testdir/file2) |
| c3=$(_md5_checksum $testdir/file3) |
| |
| test ${c1} = ${c2} || echo "file1 and file2 should match" |
| test ${c1} = ${c3} || echo "file1 and file3 should match" |
| test ${c2} = ${c3} || echo "file2 and file3 should match" |
| |
| echo "truncate files" |
| $XFS_IO_PROG -f -c "truncate $((blksz + 34))" $testdir/file2 |
| $XFS_IO_PROG -f -c "truncate $((blksz + 40))" $testdir/file3 |
| _test_cycle_mount |
| |
| echo "Compare files" |
| md5sum $testdir/file1 | _filter_test_dir |
| md5sum $testdir/file2 | _filter_test_dir |
| md5sum $testdir/file3 | _filter_test_dir |
| md5sum $testdir/file2.chk | _filter_test_dir |
| md5sum $testdir/file3.chk | _filter_test_dir |
| |
| c1=$(_md5_checksum $testdir/file1) |
| c2=$(_md5_checksum $testdir/file2) |
| c3=$(_md5_checksum $testdir/file3) |
| |
| test ${c1} != ${c2} || echo "file1 and file2 should not match" |
| test ${c1} != ${c3} || echo "file1 and file3 should not match" |
| test ${c2} != ${c3} || echo "file2 and file3 should not match" |
| |
| echo "Compare against check files" |
| cmp -s $testdir/file2 $testdir/file2.chk || echo "file2 and file2.chk do not match" |
| cmp -s $testdir/file3 $testdir/file3.chk || echo "file3 and file3.chk do not match" |
| |
| # success, all done |
| status=0 |
| exit |