| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 111 |
| # |
| # Tests file clone functionality of btrfs ("reflinks") on directory |
| # trees. |
| # - Create directory and subdirectory, each having one file |
| # - Create 2 recursive reflinked copies of the tree |
| # - Modify the original files |
| # - Modify one of the copies |
| # |
| 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 -f $tmp.* $testdir |
| } |
| |
| # get standard environment, filters and checks |
| . common/rc |
| . common/filter |
| . common/reflink |
| |
| # real QA test starts here |
| _require_test_reflink |
| _supported_os Linux |
| |
| _require_xfs_io_command "fiemap" |
| _require_cp_reflink |
| _require_test |
| |
| testdir1=$TEST_DIR/test-$seq |
| rm -rf $testdir1 |
| mkdir $testdir1 |
| |
| _checksum_files() { |
| for F in original/file1 original/subdir/file2 \ |
| copy1/file1 copy1/subdir/file2 \ |
| copy2/file1 copy2/subdir/file2 |
| do |
| md5sum $testdir1/$F | _filter_test_dir |
| done |
| } |
| |
| rm -f $seqres.full |
| |
| mkdir $testdir1/original |
| mkdir $testdir1/original/subdir |
| |
| echo "Create the original files and reflink dirs" |
| $XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $testdir1/original/file1 \ |
| >> $seqres.full 2>&1 |
| $XFS_IO_PROG -f -c 'pwrite -S 0x62 0 11000' \ |
| $testdir1/original/subdir/file2 >> $seqres.full 2>&1 |
| cp --recursive --reflink $testdir1/original $testdir1/copy1 |
| cp --recursive --reflink $testdir1/copy1 $testdir1/copy2 |
| |
| _verify_reflink $testdir1/original/file1 $testdir1/copy1/file1 |
| _verify_reflink $testdir1/original/subdir/file2 \ |
| $testdir1/copy1/subdir/file2 |
| _verify_reflink $testdir1/original/file1 $testdir1/copy2/file1 |
| _verify_reflink $testdir1/original/subdir/file2 \ |
| $testdir1/copy2/subdir/file2 |
| |
| echo "Original md5sums:" |
| _checksum_files |
| |
| echo "Overwrite original/file1 and original/subdir/file2 with new data" |
| $XFS_IO_PROG -c 'pwrite -S 0x63 0 13000' $testdir1/original/file1 \ |
| >> $seqres.full 2>&1 |
| $XFS_IO_PROG -c 'pwrite -S 0x64 5000 1000' \ |
| $testdir1/original/subdir/file2 >> $seqres.full 2>&1 |
| echo "md5sums now:" |
| _checksum_files |
| |
| echo "Overwrite copy1/file1 and copy1/subdir/file2 with new data" |
| $XFS_IO_PROG -c 'pwrite -S 0x65 0 9000' $testdir1/copy1/file1 \ |
| >> $seqres.full 2>&1 |
| $XFS_IO_PROG -c 'pwrite -S 0x66 5000 25000' \ |
| $testdir1/copy1/subdir/file2 >> $seqres.full 2>&1 |
| echo "md5sums now:" |
| _checksum_files |
| |
| # success, all done |
| status=0 |
| exit |