4 # Test deleting the default subvolume, making sure that submounts under it are
5 # not unmounted prematurely. This is a regression test for Linux commit "Btrfs:
6 # don't invalidate root dentry when subvolume deletion fails".
8 #-----------------------------------------------------------------------
9 # Copyright (c) 2015 Omar Sandoval. All Rights Reserved.
11 # This program is free software; you can redistribute it and/or
12 # modify it under the terms of the GNU General Public License as
13 # published by the Free Software Foundation.
15 # This program is distributed in the hope that it would be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program; if not, write the Free Software Foundation,
22 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #-----------------------------------------------------------------------
27 seqres=$RESULT_DIR/$seq
28 echo "QA output created by $seq"
32 status=1 # failure is the default!
33 trap "_cleanup; exit \$status" 0 1 2 3 15
41 # get standard environment, filters and checks
44 . ./common/filter.btrfs
46 # real QA test starts here
48 # Modify as appropriate.
55 _scratch_mkfs >>$seqres.full 2>&1
58 # Create a new subvolume and make it the default subvolume.
59 $BTRFS_UTIL_PROG subvolume create "$SCRATCH_MNT/testvol" >>$seqres.full 2>&1 \
60 || _fail "couldn't create subvol"
61 testvol_id=$(_btrfs_get_subvolid "$SCRATCH_MNT" testvol)
62 $BTRFS_UTIL_PROG subvolume set-default $testvol_id "$SCRATCH_MNT" >>$seqres.full 2>&1 \
63 || _fail "couldn't set default"
65 # Bind-mount a directory under the default subvolume.
66 mkdir "$SCRATCH_MNT/testvol/testdir"
67 mkdir "$SCRATCH_MNT/testvol/mnt"
68 mount --bind "$SCRATCH_MNT/testvol/testdir" "$SCRATCH_MNT/testvol/mnt"
70 # Now attempt to delete the default subvolume.
71 $BTRFS_UTIL_PROG subvolume delete "$SCRATCH_MNT/testvol" >>$seqres.full 2>&1
73 # Unmount the bind mount, which should still be alive.
74 $UMOUNT_PROG "$SCRATCH_MNT/testvol/mnt"
76 echo "Silence is golden"