18a272653SPeter Holm#!/bin/sh 28a272653SPeter Holm 38a272653SPeter Holm# 48a272653SPeter Holm# Copyright (c) 2016 EMC Corp. 58a272653SPeter Holm# All rights reserved. 68a272653SPeter Holm# 78a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 88a272653SPeter Holm# modification, are permitted provided that the following conditions 98a272653SPeter Holm# are met: 108a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 118a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 128a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 138a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 148a272653SPeter Holm# documentation and/or other materials provided with the distribution. 158a272653SPeter Holm# 168a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 178a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 188a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 198a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 208a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 218a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 228a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 238a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 248a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 258a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 268a272653SPeter Holm# SUCH DAMAGE. 278a272653SPeter Holm# 288a272653SPeter Holm 298a272653SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 308a272653SPeter Holm 318a272653SPeter Holm# mv <nullfs src> <origin src> removes the file. This is OK on FreeBSD. 328a272653SPeter Holm# This is handled on Linux with "mount --bind". 338a272653SPeter Holm 348a272653SPeter Holm. ../default.cfg 358a272653SPeter Holm 368a272653SPeter Holmmount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 378a272653SPeter Holmmdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart 388a272653SPeter Holm 398a272653SPeter Holmmdconfig -a -t swap -s 512m -u $mdstart || exit 1 408a272653SPeter Holm 41*608c97bfSPeter Holmnewfs -n -b 4096 -f 512 -i 1024 md$mdstart > /dev/null 428a272653SPeter Holm 43*608c97bfSPeter Holmmount /dev/md$mdstart $mntpoint 448a272653SPeter Holm 458a272653SPeter Holmmp2=${mntpoint}2 468a272653SPeter Holm[ -d $mp2 ] || mkdir -p $mp2 478a272653SPeter Holmmount | grep -wq $mp2 && umount $mp2 488a272653SPeter Holmmount -t nullfs $mntpoint $mp2 498a272653SPeter Holm 508a272653SPeter Holmtouch $mntpoint/file 518a272653SPeter Holm 528a272653SPeter Holm# mv's rename(2) fails as this is a "cross mount" -> 538a272653SPeter Holm# rm dst; cp src dst; rm src 548a272653SPeter Holm 558a272653SPeter Holmmv $mp2/file $mountpoint/file 568a272653SPeter Holm[ -f $mntpoint/file ] || 578a272653SPeter Holm { ls -ali $mntpoint $mp2; status=0; } 588a272653SPeter Holm# { echo FAIL; ls -ali $mntpoint $mp2; status=1; } 598a272653SPeter Holm 608a272653SPeter Holmwhile mount | grep $mp2 | grep -q nullfs; do 618a272653SPeter Holm umount $mp2 || sleep 1 628a272653SPeter Holmdone 638a272653SPeter Holmn=0 648a272653SPeter Holmwhile mount | grep $mntpoint | grep -q /dev/md; do 658a272653SPeter Holm umount $mntpoint || sleep 1 668a272653SPeter Holm n=$((n + 1)) 678a272653SPeter Holm [ $n -gt 30 ] && { echo FAIL; status=2; } 688a272653SPeter Holmdone 698a272653SPeter Holmmdconfig -d -u $mdstart 708a272653SPeter Holmexit $status 71