| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 137 |
| # |
| # Ensure that we can reflink and dedupe blocks within the same file... |
| # - Create a file with three distinct blocks ABB |
| # - Reflink block zero to the multiple-of-three blocks |
| # - Reflink block one to the multiple-of-five blocks |
| # - Dedupe block two to the multiple-of-seven blocks |
| # - Check that we successfully avoid deduping with holes, unwritten |
| # extents, and non-matches; but actually dedupe real matches. |
| # |
| . ./common/preamble |
| _begin_fstest auto clone dedupe |
| |
| # Override the default cleanup function. |
| _cleanup() |
| { |
| cd / |
| rm -rf $tmp.* $testdir |
| } |
| |
| # Import common functions. |
| . ./common/filter |
| . ./common/reflink |
| |
| # real QA test starts here |
| _require_test_reflink |
| _require_test_dedupe |
| _require_xfs_io_command "falloc" |
| |
| testdir=$TEST_DIR/test-$seq |
| rm -rf $testdir |
| mkdir $testdir |
| |
| echo "Create the original file blocks" |
| blksz=65536 |
| _pwrite_byte 0x61 0 $blksz $testdir/file1 >> $seqres.full |
| _pwrite_byte 0x62 $blksz $((blksz * 2)) $testdir/file1 >> $seqres.full |
| |
| nr_blks=1024 |
| |
| echo "fallocate half the file" |
| $XFS_IO_PROG -f -c "falloc $((nr_blks * blksz / 2)) $((nr_blks * blksz / 2))" $testdir/file1 >> $seqres.full |
| |
| echo "Reflink block zero to the threes" |
| seq 1 $((nr_blks / 3)) | while read nr; do |
| _reflink_range $testdir/file1 0 $testdir/file1 $((nr * 3 * blksz)) \ |
| $blksz >> $seqres.full |
| done |
| |
| echo "Reflink block one to the fives" |
| seq 1 $((nr_blks / 5)) | while read nr; do |
| _reflink_range $testdir/file1 $blksz $testdir/file1 \ |
| $((nr * 5 * blksz)) $blksz >> $seqres.full |
| done |
| |
| echo "Dedupe block two to the sevens" |
| seq 1 $((nr_blks / 7)) | while read nr; do |
| _dedupe_range $testdir/file1 $((blksz * 2)) $testdir/file1 \ |
| $((nr * 7 * blksz)) $blksz >> $seqres.full 2>&1 |
| done |
| |
| _test_cycle_mount |
| |
| echo "Check block mappings" |
| md5sum $testdir/file1 | _filter_test_dir |
| |
| crcZ=$(_md5_range_checksum /dev/zero 0 $blksz) |
| crc0=$(_md5_range_checksum $testdir/file1 0 $blksz) |
| crc1=$(_md5_range_checksum $testdir/file1 $blksz $blksz) |
| crc2=$(_md5_range_checksum $testdir/file1 $((blksz * 2)) $blksz) |
| |
| check_block() { |
| lblk=$1 |
| rem7=$((lblk % 7)) |
| rem5=$((lblk % 5)) |
| rem3=$((lblk % 3)) |
| |
| crc=$(_md5_range_checksum $testdir/file1 $((lblk * blksz)) $blksz) |
| |
| if [ $rem7 -eq 0 ]; then |
| if [ $rem5 -eq 0 ]; then |
| test $crc2 = $crc || echo "lblk $lblk doesn't match block 2" |
| elif [ $rem3 -eq 0 ]; then |
| test $crc0 = $crc || echo "lblk $lblk doesn't match block 0" |
| elif [ $lblk -lt $((nr_blks / 2)) ]; then |
| test $crcZ = $crc || echo "lblk $lblk isn't zeroed" |
| fi |
| elif [ $rem5 -eq 0 ]; then |
| test $crc1 = $crc || echo "lblk $lblk doesn't match block 1" |
| elif [ $rem3 -eq 0 ]; then |
| test $crc0 = $crc || echo "lblk $lblk doesn't match block 0" |
| elif [ $lblk -lt $((nr_blks / 2)) ]; then |
| test $crcZ = $crc || echo "lblk $lblk isn't zeroed" |
| fi |
| } |
| |
| seq 3 $((nr_blks - 1)) | while read lblk; do |
| err="$(check_block $lblk)" |
| test -n "$err" && echo "$lblk: $err" |
| done |
| |
| # success, all done |
| status=0 |
| exit |