2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (C) 2018 SUSE Linux Products GmbH. All Rights Reserved.
7 # Test that we can not clone a range from a file A into the middle of a file B
8 # when the range includes the last block of file A and file A's size is not
9 # aligned with the filesystem's block size. Allowing such case would lead to
10 # data corruption since the data between EOF and the end of its block is
14 seqres=$RESULT_DIR/$seq
15 echo "QA output created by $seq"
17 status=1 # failure is the default!
18 trap "_cleanup; exit \$status" 0 1 2 3 15
26 # get standard environment, filters and checks
31 # real QA test starts here
33 _require_scratch_reflink
37 _scratch_mkfs >>$seqres.full 2>&1
40 foo_size=$((256 * 1024 + 100)) # 256Kb + 100 bytes
43 $XFS_IO_PROG -f -c "pwrite -S 0x3c 0 $foo_size" $SCRATCH_MNT/foo | _filter_xfs_io
44 $XFS_IO_PROG -f -c "pwrite -S 0xb5 0 $bar_size" $SCRATCH_MNT/bar | _filter_xfs_io
46 # Cloning the EOF block of a file into the middle of another file should fail
47 # with an invalid argument error.
48 $XFS_IO_PROG -c "reflink $SCRATCH_MNT/foo 0 512K $foo_size" $SCRATCH_MNT/bar
50 # Unmount the filesystem and mount it again. This guarantees any file data in
51 # the page cache is dropped.
54 # Verify no changes were made to the file.
55 echo "File content after failed reflink:"
56 od -A d -t x1 $SCRATCH_MNT/bar