2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2016 Red Hat Inc. All Rights Reserved.
7 # Remove dir which contains whiteout from lower dir.
9 # The following kernel commit fixed the kernel crash on the removal
10 # 84889d4 ovl: check dentry positiveness in ovl_cleanup_whiteouts()
13 seqres=$RESULT_DIR/$seq
14 echo "QA output created by $seq"
18 status=1 # failure is the default!
19 trap "_cleanup; exit \$status" 0 1 2 3 15
27 # get standard environment, filters and checks
33 # real QA test starts here
35 # Use non-default scratch underlying overlay dirs, we need to check
36 # them explicity after test.
37 _require_scratch_nocheck
39 # Remove all files from previous tests
42 # Need two lower dirs in this test, and we mount overlay ourselves,
43 # create upper and workdir as well
44 lowerdir1=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER.1
45 lowerdir2=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER.2
46 upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
47 workdir=$OVL_BASE_SCRATCH_MNT/$OVL_WORK
48 mkdir -p $lowerdir1 $lowerdir2 $upperdir $workdir
50 # One lowerdir contains test dir and test files, the other contains whiteout
51 mkdir -p $lowerdir1/testdir $lowerdir2/testdir
52 touch $lowerdir1/testdir/a $lowerdir1/testdir/b
53 mknod $lowerdir2/testdir/a c 0 0
55 # Mount overlayfs and remove testdir, which led to kernel crash
56 _overlay_scratch_mount_dirs "$lowerdir2:$lowerdir1" $upperdir $workdir
57 rm -rf $SCRATCH_MNT/testdir
60 _overlay_check_scratch_dirs "$lowerdir2:$lowerdir1" $upperdir $workdir
63 echo "Silence is golden"