| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (C) 2018 SUSE Linux Products GmbH. All Rights Reserved. |
| # |
| # FS QA Test No. 512 |
| # |
| # Test that if we have a very small file, with a size smaller than the block |
| # size, then fallocate a very small range within the block size but past the |
| # file's current size, fsync the file and then power fail, after mounting the |
| # filesystem all the file data is there and the file size is correct. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick log prealloc |
| |
| # Override the default cleanup function. |
| _cleanup() |
| { |
| _cleanup_flakey |
| cd / |
| rm -f $tmp.* |
| } |
| |
| # Import common functions. |
| . ./common/filter |
| . ./common/dmflakey |
| |
| # real QA test starts here |
| _supported_fs generic |
| _require_scratch |
| _require_xfs_io_command "falloc" |
| _require_dm_target flakey |
| |
| _scratch_mkfs >>$seqres.full 2>&1 |
| _require_metadata_journaling $SCRATCH_DEV |
| _init_flakey |
| _mount_flakey |
| |
| $XFS_IO_PROG -f \ |
| -c "pwrite -S 0xb6 0 21" \ |
| -c "falloc 40 40" \ |
| -c "fsync" \ |
| $SCRATCH_MNT/foobar | _filter_xfs_io |
| |
| # Simulate a power failure and mount the filesystem. We expect no data loss |
| # and a correct file size. |
| _flakey_drop_and_remount |
| |
| echo "File content after power failure:" |
| od -t x1 -A d $SCRATCH_MNT/foobar |
| |
| _unmount_flakey |
| |
| status=0 |
| exit |