4 # Test that when a fsync journal/log exists, if we rename a special file (fifo,
5 # symbolic link or device), create a hard link for it with its old name and then
6 # commit the journal/log, if a power loss happens the filesystem will not fail
7 # to replay the journal/log when it is mounted the next time.
9 #-----------------------------------------------------------------------
11 # Copyright (C) 2018 SUSE Linux Products GmbH. All Rights Reserved.
12 # Author: Filipe Manana <fdmanana@suse.com>
14 # This program is free software; you can redistribute it and/or
15 # modify it under the terms of the GNU General Public License as
16 # published by the Free Software Foundation.
18 # This program is distributed in the hope that it would be useful,
19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 # GNU General Public License for more details.
23 # You should have received a copy of the GNU General Public License
24 # along with this program; if not, write the Free Software Foundation,
25 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #-----------------------------------------------------------------------
30 seqres=$RESULT_DIR/$seq
31 echo "QA output created by $seq"
33 status=1 # failure is the default!
34 trap "_cleanup; exit \$status" 0 1 2 3 15
43 # get standard environment, filters and checks
48 # real QA test starts here
52 _require_dm_target flakey
60 _scratch_mkfs >>$seqres.full 2>&1
61 _require_metadata_journaling $SCRATCH_DEV
65 mkdir $SCRATCH_MNT/testdir
68 ln -s xxx $SCRATCH_MNT/testdir/foo
71 mkfifo $SCRATCH_MNT/testdir/foo
74 mknod $SCRATCH_MNT/testdir/foo c 0 0
77 _fail "Invalid file type argument: $file_type"
79 # Make sure everything done so far is durably persisted.
82 # Create a file and fsync it just to create a journal/log. This file
83 # must be in the same directory as our special file "foo".
84 touch $SCRATCH_MNT/testdir/f1
85 $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/testdir/f1
87 # Rename our special file and then create link that has its old name.
88 mv $SCRATCH_MNT/testdir/foo $SCRATCH_MNT/testdir/bar
89 ln $SCRATCH_MNT/testdir/bar $SCRATCH_MNT/testdir/foo
91 # Create a second file and fsync it. This is just to durably persist the
92 # fsync journal/log which is typically modified by the previous rename
93 # and link operations. This file does not need to be placed in the same
94 # directory as our special file.
96 $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/f2
98 # Simulate a power failure and mount the filesystem to check that
99 # replaying the fsync log/journal succeeds, that is the mount operation
101 _flakey_drop_and_remount
110 echo "Silence is golden"