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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Red Hat, Inc. All Rights Reserved.
#
# FS QA Test 492
#
# Test the online filesystem label set/get ioctls
#
. ./common/preamble
_begin_fstest auto quick
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_scratch
_require_xfs_io_command "label"
_require_label_get_max
_scratch_mkfs > $seqres.full 2>&1
_scratch_mount
# Make sure we can set & clear the label
$XFS_IO_PROG -c "label -s label.$seq" $SCRATCH_MNT
$XFS_IO_PROG -c "label" $SCRATCH_MNT
$XFS_IO_PROG -c "label -c" $SCRATCH_MNT
$XFS_IO_PROG -c "label" $SCRATCH_MNT
# And that userspace can see it now, while mounted
# NB: some blkid has trailing whitespace, filter it out here
$XFS_IO_PROG -c "label -s label.$seq" $SCRATCH_MNT
$XFS_IO_PROG -c "label" $SCRATCH_MNT
blkid -s LABEL $SCRATCH_DEV | _filter_scratch | sed -e "s/ $//g"
# And that the it is still there when it's unmounted
_scratch_unmount
blkid -s LABEL $SCRATCH_DEV | _filter_scratch | sed -e "s/ $//g"
# And that it persists after a remount
_scratch_mount
$XFS_IO_PROG -c "label" $SCRATCH_MNT
# And that a too-long label is rejected, beyond the interface max:
fs_label=$(perl -e "print 'l' x 257;")
$XFS_IO_PROG -c "label -s $fs_label" $SCRATCH_MNT
# And it succeeds right at the filesystem max:
max_label_len=$(_label_get_max)
fs_label=$(perl -e "print 'o' x $max_label_len;")
$XFS_IO_PROG -c "label -s $fs_label" $SCRATCH_MNT | sed -e 's/o\+/MAXLABEL/'
# And that it fails past the filesystem max:
let toolong_label_len=max_label_len+1
fs_label=$(perl -e "print 'o' x $toolong_label_len;")
$XFS_IO_PROG -c "label -s $fs_label " $SCRATCH_MNT
# success, all done
status=0
exit
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