4 # When file in lower dir is locked and it's been copied up,
5 # make sure the lock is working in overlayfs.
7 # Kernel commit below fixed it.
8 # c568d68341be locks: fix file locking on overlayfs
10 # This reproducer was originally written by
11 # Miklos Szeredi <mszeredi@redhat.com>
13 #-----------------------------------------------------------------------
14 # Copyright (c) 2017 Red Hat Inc. All Rights Reserved.
16 # This program is free software; you can redistribute it and/or
17 # modify it under the terms of the GNU General Public License as
18 # published by the Free Software Foundation.
20 # This program is distributed in the hope that it would be useful,
21 # but WITHOUT ANY WARRANTY; without even the implied warranty of
22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 # GNU General Public License for more details.
25 # You should have received a copy of the GNU General Public License
26 # along with this program; if not, write the Free Software Foundation,
27 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
28 #-----------------------------------------------------------------------
32 seqres=$RESULT_DIR/$seq
33 echo "QA output created by $seq"
37 status=1 # failure is the default!
38 trap "_cleanup; exit \$status" 0 1 2 3 15
46 # get standard environment, filters and checks
50 # remove previous $seqres.full before test
53 # real QA test starts here
55 # Modify as appropriate.
59 _require_command "$FLOCK_PROG" flock
61 # Remove all files from previous tests
64 lowerdir=$SCRATCH_DEV/$OVL_LOWER
71 # Testing copyup and flock
72 flock $SCRATCH_MNT/foo sleep 3 &
73 # flock in subshell should fail with no output
74 (sleep 1; echo bar > $SCRATCH_MNT/foo; \
75 flock -n $SCRATCH_MNT/foo echo LOCKED)
78 echo "Silence is golden"