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apfstests/tests/btrfs/089
T
Darrick J. Wong a860a167d8 common: kill _supported_os
fstests only supports Linux, so get rid of this unnecessary predicate.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
2020-09-21 01:16:50 +08:00

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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 Omar Sandoval. All Rights Reserved.
#
# FS QA Test 089
#
# Test deleting the default subvolume, making sure that submounts under it are
# not unmounted prematurely. This is a regression test for Linux commit "Btrfs:
# don't invalidate root dentry when subvolume deletion fails".
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15
_cleanup()
{
cd /
rm -f $tmp.*
}
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/filter.btrfs
# real QA test starts here
# Modify as appropriate.
_supported_fs btrfs
_require_scratch
rm -f $seqres.full
_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount
# Create a new subvolume and make it the default subvolume.
$BTRFS_UTIL_PROG subvolume create "$SCRATCH_MNT/testvol" >>$seqres.full 2>&1 \
|| _fail "couldn't create subvol"
testvol_id=$(_btrfs_get_subvolid "$SCRATCH_MNT" testvol)
$BTRFS_UTIL_PROG subvolume set-default $testvol_id "$SCRATCH_MNT" >>$seqres.full 2>&1 \
|| _fail "couldn't set default"
# Bind-mount a directory under the default subvolume.
mkdir "$SCRATCH_MNT/testvol/testdir"
mkdir "$SCRATCH_MNT/testvol/mnt"
mount --bind "$SCRATCH_MNT/testvol/testdir" "$SCRATCH_MNT/testvol/mnt"
# Now attempt to delete the default subvolume.
$BTRFS_UTIL_PROG subvolume delete "$SCRATCH_MNT/testvol" >>$seqres.full 2>&1
# Unmount the bind mount, which should still be alive.
$UMOUNT_PROG "$SCRATCH_MNT/testvol/mnt"
echo "Silence is golden"
status=0
exit