| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2018, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 516 |
| # |
| # Ensuring that we cannot dedupe non-matching parts of files: |
| # - Fail to dedupe non-identical parts of two different files |
| # - Check that nothing changes in either file |
| # |
| . ./common/preamble |
| _begin_fstest auto quick dedupe clone |
| |
| # Override the default cleanup function. |
| _cleanup() |
| { |
| cd / |
| rm -rf $tmp.* $testdir |
| } |
| |
| # Import common functions. |
| . ./common/filter |
| . ./common/reflink |
| |
| # real QA test starts here |
| _require_test_dedupe |
| |
| testdir=$TEST_DIR/test-$seq |
| rm -rf $testdir |
| mkdir $testdir |
| |
| echo "Create the original files" |
| blksz=65536 |
| _pwrite_byte 0x61 $((blksz * 2)) $((blksz * 6)) $testdir/file1 >> $seqres.full |
| _pwrite_byte 0x61 $((blksz * 2)) $((blksz * 6)) $testdir/file2 >> $seqres.full |
| _pwrite_byte 0x62 $(((blksz * 6) - 33)) 1 $testdir/file2 >> $seqres.full |
| _test_cycle_mount |
| |
| md5sum $testdir/file1 | _filter_test_dir |
| md5sum $testdir/file2 | _filter_test_dir |
| |
| _compare_range $testdir/file1 0 $testdir/file2 0 "$((blksz * 8))" \ |
| || echo "Files 1-2 do not match (intentional)" |
| |
| echo "(partial) dedupe the middle blocks together" |
| free_before=$(stat -f -c '%a' $testdir) |
| _dedupe_range $testdir/file1 $((blksz * 4)) $testdir/file2 \ |
| $((blksz * 4)) $((blksz * 2)) 2>&1 | _filter_xfs_io_numbers | _filter_dedupe_error |
| _test_cycle_mount |
| ${FILEFRAG_PROG} -v $testdir/file1 >> $seqres.full |
| ${FILEFRAG_PROG} -v $testdir/file2 >> $seqres.full |
| free_after=$(stat -f -c '%a' $testdir) |
| echo "freesp changed by $free_before -> $free_after" >> $seqres.full |
| |
| echo "Compare sections" |
| md5sum $testdir/file1 | _filter_test_dir |
| md5sum $testdir/file2 | _filter_test_dir |
| |
| _compare_range $testdir/file1 0 $testdir/file2 0 $((blksz * 4)) \ |
| || echo "Start sections do not match (error)" |
| |
| _compare_range $testdir/file1 $((blksz * 4)) $testdir/file2 \ |
| $((blksz * 4)) $((blksz * 2)) \ |
| || echo "Middle sections do not match (intentional)" |
| |
| _compare_range $testdir/file1 $((blksz * 6)) $testdir/file2 \ |
| $((blksz * 6)) $((blksz * 2)) \ |
| || echo "End sections do not match (error)" |
| |
| # success, all done |
| status=0 |
| exit |