| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (C) 2018 SUSE Linux Products GmbH. All Rights Reserved. |
| # |
| # FS QA Test No. 502 |
| # |
| # Test that if we have a file with 2 (or more) hard links in the same parent |
| # directory, rename of the hard links, rename one of the other hard links to |
| # the old name of the hard link we renamed before, create a new file in the |
| # same parent directory with the old name of second hard link we renamed, fsync |
| # fsync this new file and power fail, we will be able to mount again the |
| # filesystem and the new file and all hard links exist. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick log |
| |
| # Override the default cleanup function. |
| _cleanup() |
| { |
| _cleanup_flakey |
| cd / |
| rm -f $tmp.* |
| } |
| |
| # Import common functions. |
| . ./common/filter |
| . ./common/dmflakey |
| |
| # real QA test starts here |
| _supported_fs generic |
| _require_scratch |
| _require_hardlinks |
| _require_dm_target flakey |
| |
| _scratch_mkfs >>$seqres.full 2>&1 |
| _require_metadata_journaling $SCRATCH_DEV |
| _init_flakey |
| _mount_flakey |
| |
| # Create our test file with 2 hard links in the same parent directory. |
| mkdir $SCRATCH_MNT/testdir |
| touch $SCRATCH_MNT/testdir/foo |
| ln $SCRATCH_MNT/testdir/foo $SCRATCH_MNT/testdir/bar |
| |
| # Make sure everything done so far is durably persisted. |
| sync |
| |
| # Now rename the first hard link (foo) to a new name and rename the second hard |
| # link (bar) to the old name of the first hard link (foo). |
| mv $SCRATCH_MNT/testdir/foo $SCRATCH_MNT/testdir/qwerty |
| mv $SCRATCH_MNT/testdir/bar $SCRATCH_MNT/testdir/foo |
| |
| # Create a new file, in the same parent directory, with the old name of the |
| # second hard link (bar) and fsync this new file. |
| touch $SCRATCH_MNT/testdir/bar |
| $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/testdir/bar |
| |
| echo "Contents of test directory before the power failure:" |
| ls -R $SCRATCH_MNT/testdir | _filter_scratch |
| |
| # Simulate a power failure and mount the filesystem to check that we are able to |
| # mount it and we have the same files, with the same hard links, that we had |
| # before the power failure and in the same order. |
| _flakey_drop_and_remount |
| |
| echo "Contents of test directory after the power failure:" |
| ls -R $SCRATCH_MNT/testdir | _filter_scratch |
| |
| _unmount_flakey |
| _cleanup_flakey |
| |
| status=0 |
| exit |