2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2020 Facebook. All Rights Reserved.
7 # Validate that without no-holes we do not get a i_size that is after a gap in
8 # the file extents on disk when punching a hole past i_size. This is fixed by
9 # the following patches
11 # btrfs: use the file extent tree infrastructure
12 # btrfs: replace all uses of btrfs_ordered_update_i_size
15 seqres=$RESULT_DIR/$seq
16 echo "QA output created by $seq"
20 status=1 # failure is the default!
21 trap "_cleanup; exit \$status" 0 1 2 3 15
29 # get standard environment, filters and checks
32 . ./common/dmlogwrites
34 # remove previous $seqres.full before test
37 # real QA test starts here
42 _require_xfs_io_command "falloc" "-k"
43 _require_xfs_io_command "fpunch"
45 _log_writes_init $SCRATCH_DEV
46 _log_writes_mkfs "-O ^no-holes" >> $seqres.full 2>&1
48 # There's not a straightforward way to commit the transaction without also
49 # flushing dirty pages, so shorten the commit interval to 1 so we're sure to get
50 # a commit with our broken file
51 _log_writes_mount -o commit=1
53 # This creates a gap extent because fpunch doesn't insert hole extents past
55 $XFS_IO_PROG -f -c "falloc -k 4k 8k" $SCRATCH_MNT/file
56 $XFS_IO_PROG -f -c "fpunch 4k 4k" $SCRATCH_MNT/file
58 # The pwrite extends the i_size to cover the gap extent, and then the truncate
59 # sets the disk_i_size to 12k because it assumes everything was a-ok.
60 $XFS_IO_PROG -f -c "pwrite 0 4k" $SCRATCH_MNT/file | _filter_xfs_io
61 $XFS_IO_PROG -f -c "pwrite 0 8k" $SCRATCH_MNT/file | _filter_xfs_io
62 $XFS_IO_PROG -f -c "truncate 12k" $SCRATCH_MNT/file
64 # Wait for a transaction commit
70 cur=$(_log_writes_find_next_fua 0)
71 echo "cur=$cur" >> $seqres.full
72 while [ ! -z "$cur" ]; do
73 _log_writes_replay_log_range $cur $SCRATCH_DEV >> $seqres.full
75 # We only care about the fs consistency, so just run fsck, we don't have
76 # to mount the fs to validate it
79 cur=$(_log_writes_find_next_fua $(($cur + 1)))