| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 178 |
| # |
| # Ensure that punch-hole doesn't clobber CoW. |
| # |
| 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 "fpunch" |
| |
| rm -f $seqres.full |
| |
| testdir=$TEST_DIR/test-$seq |
| rm -rf $testdir |
| mkdir $testdir |
| |
| echo "Create the original files" |
| blksz=65536 |
| nr=512 |
| filesize=$((blksz * nr)) |
| _pwrite_byte 0x61 0 $filesize $testdir/file1 >> $seqres.full |
| |
| _cp_reflink $testdir/file1 $testdir/file2 |
| _test_cycle_mount |
| |
| md5sum $testdir/file1 | _filter_test_dir |
| md5sum $testdir/file2 | _filter_test_dir |
| |
| echo "Write and punch" |
| _pwrite_byte 0x62 0 $((blksz * 256)) $testdir/file2 >> $seqres.full |
| $XFS_IO_PROG -f -c "fpunch $blksz $((blksz * 254))" $testdir/file2 |
| _test_cycle_mount |
| |
| echo "Compare results" |
| md5sum $testdir/file1 | _filter_test_dir |
| md5sum $testdir/file2 | _filter_test_dir |
| |
| # success, all done |
| status=0 |
| exit |