| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 216 |
| # |
| # See what happens if we CoW blocks 2-4 of a page's worth of blocks when the |
| # second block is a unwritten block. |
| # |
| # This test is dependent on the system page size, so we cannot use md5 in |
| # the golden output; we can only compare to a check file. |
| # |
| 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_scratch_reflink |
| _require_xfs_io_command "falloc" |
| |
| rm -f $seqres.full |
| |
| pagesz=$(getconf PAGE_SIZE) |
| blksz=$((pagesz / 4)) |
| |
| echo "Format and mount" |
| _scratch_mkfs_blocksized $blksz > $seqres.full 2>&1 |
| _scratch_mount >> $seqres.full 2>&1 |
| |
| testdir=$SCRATCH_MNT/test-$seq |
| mkdir $testdir |
| |
| real_blksz=$(_get_file_block_size $testdir) |
| test $real_blksz != $blksz && _notrun "Failed to format with small blocksize." |
| |
| echo "Create the original files" |
| _pwrite_byte 0x61 0 $pagesz $testdir/file1 >> $seqres.full |
| |
| $XFS_IO_PROG -f -c "truncate $pagesz" $testdir/file2 >> $seqres.full |
| $XFS_IO_PROG -f -c "truncate $pagesz" $testdir/file2.chk >> $seqres.full |
| |
| $XFS_IO_PROG -f -c "falloc -k $blksz $blksz" $testdir/file2 >> $seqres.full |
| _pwrite_byte 0x00 $blksz $blksz $testdir/file2.chk >> $seqres.full |
| |
| $XFS_IO_PROG -f -c "falloc -k $((blksz * 3)) $blksz" $testdir/file2 >> $seqres.full |
| _pwrite_byte 0x00 $((blksz * 3)) $blksz $testdir/file2.chk >> $seqres.full |
| |
| _reflink_range $testdir/file1 $blksz $testdir/file2 $((blksz * 2)) $blksz >> $seqres.full |
| _pwrite_byte 0x61 $((blksz * 2)) $blksz $testdir/file2.chk >> $seqres.full |
| _scratch_cycle_mount |
| |
| echo "Compare files" |
| ! cmp -s $testdir/file1 $testdir/file2 || _fail "file1 and file2 don't match." |
| cmp -s $testdir/file2 $testdir/file2.chk || _fail "file2 and file2.chk don't match." |
| |
| echo "CoW and unmount" |
| $XFS_IO_PROG -f -c "pwrite -S 0x63 $((blksz + 17)) $((blksz * 3 - 34))" $testdir/file2 >> $seqres.full |
| $XFS_IO_PROG -f -c "pwrite -S 0x63 $((blksz + 17)) $((blksz * 3 - 34))" $testdir/file2.chk >> $seqres.full |
| _scratch_cycle_mount |
| |
| echo "Compare files" |
| ! cmp -s $testdir/file1 $testdir/file2 || _fail "file1 and file2 don't match." |
| cmp -s $testdir/file2 $testdir/file2.chk || _fail "file2 and file2.chk don't match." |
| |
| # success, all done |
| status=0 |
| exit |