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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2019 Red Hat, Inc. All Rights Reserved.
#
# FS QA Test No. 149
#
# Test to ensure xfs_growfs command accepts device nodes if & only
# if they are mounted.
# This functionality, though undocumented, worked until xfsprogs v4.12
# It was added back and documented after xfsprogs v5.2 via
# 7e8275f8 xfs_growfs: allow mounted device node as argument
#
# Based on xfs/289
#
. ./common/preamble
_begin_fstest auto quick growfs
loopfile=$TEST_DIR/fsfile
mntdir=$TEST_DIR/mntdir
loop_symlink=$TEST_DIR/loop_symlink.$$
# Override the default cleanup function.
_cleanup()
{
$UMOUNT_PROG $mntdir
[ -n "$loop_dev" ] && _destroy_loop_device $loop_dev
rmdir $mntdir
rm -f $loop_symlink
rm -f $loopfile
}
# Import common functions.
. ./common/filter
# real QA test starts here
# Modify as appropriate.
_supported_fs xfs
_require_test
_require_loop
mkdir -p $mntdir || _fail "!!! failed to create temp mount dir"
echo "=== mkfs.xfs ==="
$MKFS_XFS_PROG -d file,name=$loopfile,size=16m -f >/dev/null 2>&1
echo "=== truncate ==="
$XFS_IO_PROG -fc "truncate 256m" $loopfile
echo "=== create loop device ==="
loop_dev=$(_create_loop_device $loopfile)
echo "=== create loop device symlink ==="
ln -s $loop_dev $loop_symlink
echo "loop device is $loop_dev" >> $seqres.full
# These unmounted operations should fail
echo "=== xfs_growfs - unmounted device, command should be rejected ==="
$XFS_GROWFS_PROG $loop_dev 2>&1 | sed -e s:$loop_dev:LOOPDEV:
echo "=== xfs_growfs - check symlinked dev, unmounted ==="
$XFS_GROWFS_PROG $loop_symlink 2>&1 | sed -e s:$loop_symlink:LOOPSYMLINK:
# These mounted operations should pass
echo "=== mount ==="
$MOUNT_PROG $loop_dev $mntdir || _fail "!!! failed to loopback mount"
echo "=== xfs_growfs - check device node ==="
$XFS_GROWFS_PROG -D 8192 $loop_dev > /dev/null
echo "=== xfs_growfs - check device symlink ==="
$XFS_GROWFS_PROG -D 12288 $loop_symlink > /dev/null
echo "=== unmount ==="
$UMOUNT_PROG $mntdir || _fail "!!! failed to unmount"
echo "=== mount device symlink ==="
$MOUNT_PROG $loop_symlink $mntdir || _fail "!!! failed to loopback mount"
echo "=== xfs_growfs - check device symlink ==="
$XFS_GROWFS_PROG -D 16384 $loop_symlink > /dev/null
echo "=== xfs_growfs - check device node ==="
$XFS_GROWFS_PROG -D 20480 $loop_dev > /dev/null
# success, all done
status=0
exit
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