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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2016 SUSE Linux Products GmbH. All Rights Reserved.
#
# FS QA Test No. btrfs/121
#
# Test that an invalid parent qgroup does not cause snapshot create to
# force the FS readonly.
#
# This issue is fixed by the following btrfs patch:
# [PATCH] btrfs: handle non-fatal errors in btrfs_qgroup_inherit()
# http://thread.gmane.org/gmane.comp.file-systems.btrfs/54755
#
. ./common/preamble
_begin_fstest auto quick snapshot qgroup
. ./common/filter
_supported_fs btrfs
_require_scratch
_scratch_mkfs >/dev/null
_scratch_mount
_btrfs quota enable $SCRATCH_MNT
# The qgroup '1/10' does not exist. The kernel should either gives an error
# (newer kernel with invalid qgroup detection) or ignore it (older kernel with
# above fix).
# Either way, we just ignore the output completely, and we will check if the fs
# is still RW later.
$BTRFS_UTIL_PROG subvolume snapshot -i 1/10 $SCRATCH_MNT $SCRATCH_MNT/snap1 >> $seqres.full 2>&1
touch $SCRATCH_MNT/foobar
echo "Silence is golden"
status=0
exit
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