| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0+ |
| # Copyright (c) 2019, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 540 |
| # |
| # Ensuring that reflinking works when the destination range covers multiple |
| # extents, some unwritten, some not: |
| # |
| # - Create a file with the following repeating sequence of blocks: |
| # 1. reflinked |
| # 2. unwritten |
| # 3. hole |
| # 4. regular block |
| # 5. delalloc |
| # - reflink across the halfway mark, starting with the unwritten extent. |
| # - Check that the files are now different where we say they're different. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick clone |
| |
| # Import common functions. |
| . ./common/filter |
| . ./common/reflink |
| |
| # real QA test starts here |
| _supported_fs generic |
| _require_scratch_reflink |
| _require_scratch_delalloc |
| _require_xfs_io_command "falloc" |
| |
| echo "Format and mount" |
| _scratch_mkfs > $seqres.full 2>&1 |
| _scratch_mount >> $seqres.full 2>&1 |
| |
| testdir=$SCRATCH_MNT/test-$seq |
| mkdir $testdir |
| |
| echo "Create the original files" |
| blksz=65536 |
| nr=64 |
| filesize=$((blksz * nr)) |
| _pwrite_byte 0x64 0 $((blksz * nr)) $testdir/file2 >> $seqres.full |
| _weave_reflink_rainbow $blksz $nr $testdir/file1 $testdir/file3 >> $seqres.full |
| _scratch_cycle_mount |
| |
| echo "Compare files" |
| md5sum $testdir/file1 | _filter_scratch |
| md5sum $testdir/file2 | _filter_scratch |
| md5sum $testdir/file3 | _filter_scratch |
| md5sum $testdir/file3.chk | _filter_scratch |
| |
| echo "reflink across the transition" |
| roff=$((filesize / 4)) |
| rsz=$((filesize / 2)) |
| _weave_reflink_rainbow_delalloc $blksz $nr $testdir/file3 >> $seqres.full |
| |
| # now reflink into the rainbow |
| echo "before reflink" >> $seqres.full |
| $FILEFRAG_PROG -v $testdir/file2 >> $seqres.full 2>&1 |
| $FILEFRAG_PROG -v $testdir/file3 >> $seqres.full 2>&1 |
| $XFS_IO_PROG -f -c "reflink $testdir/file2 $roff $roff $rsz" $testdir/file3 >> $seqres.full |
| _pwrite_byte 0x64 $roff $rsz $testdir/file3.chk >> $seqres.full |
| _scratch_cycle_mount |
| |
| echo "Compare files" |
| echo "after reflink" >> $seqres.full |
| $FILEFRAG_PROG -v $testdir/file2 >> $seqres.full 2>&1 |
| $FILEFRAG_PROG -v $testdir/file3 >> $seqres.full 2>&1 |
| md5sum $testdir/file1 | _filter_scratch |
| md5sum $testdir/file2 | _filter_scratch |
| md5sum $testdir/file3 | _filter_scratch |
| md5sum $testdir/file3.chk | _filter_scratch |
| |
| # success, all done |
| status=0 |
| exit |
