2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
7 # Test recovery of "lost" CoW blocks after a crash:
8 # - Create two reflinked files. Set extsz hint on second file.
9 # - Dirty one byte on the second file and fsync.
10 # - Crash the FS to test recovery.
13 seqres=$RESULT_DIR/$seq
14 echo "QA output created by $seq"
18 status=1 # failure is the default!
19 trap "_cleanup; exit \$status" 0 1 2 3 15
27 # get standard environment, filters and checks
32 # real QA test starts here
35 _require_scratch_reflink
37 _require_xfs_io_command "fiemap"
41 echo "Format and mount"
42 _scratch_mkfs > $seqres.full 2>&1
43 _scratch_mount >> $seqres.full 2>&1
45 testdir=$SCRATCH_MNT/test-$seq
50 filesize=$((blksz * nr))
52 bufsize=$((blksz * bufnr))
54 _require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
56 echo "Create the original files"
57 $XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $filesize" $testdir/file1 >> $seqres.full
58 $XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $filesize" $testdir/file2.chk >> $seqres.full
59 $XFS_IO_PROG -f -c "extsize $bufsize" $testdir/file2
60 _cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
64 md5sum $testdir/file1 | _filter_scratch
65 md5sum $testdir/file2 | _filter_scratch
66 md5sum $testdir/file2.chk | _filter_scratch
68 echo "CoW and leave leftovers"
69 $XFS_IO_PROG -f -c "extsize" $testdir/file2 >> $seqres.full
70 $XFS_IO_PROG -f -c "pwrite -S 0x63 $((filesize - 1)) 1" -c "fsync" $testdir/file2 >> $seqres.full
71 $XFS_IO_PROG -f -c "pwrite -S 0x63 $((filesize - 1)) 1" -c "fsync" $testdir/file2.chk >> $seqres.full
74 echo "Crash and recover"
75 $XFS_IO_PROG -x -c "shutdown" $testdir/file2 >> $seqres.full
79 md5sum $testdir/file1 | _filter_scratch
80 md5sum $testdir/file2 | _filter_scratch
81 md5sum $testdir/file2.chk | _filter_scratch