xref: /freebsd/tools/test/stress2/misc/procfs.sh (revision e0c4386e)
1#!/bin/sh
2
3#
4# Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12# 2. Redistributions in binary form must reproduce the above copyright
13#    notice, this list of conditions and the following disclaimer in the
14#    documentation and/or other materials provided with the distribution.
15#
16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26# SUCH DAMAGE.
27#
28
29[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
30
31. ../default.cfg
32
33mounts=15		# Number of parallel scripts
34mdstart=$mdstart	# Use md unit numbers from this point
35
36if [ $# -eq 0 ]; then
37	for i in `jot $mounts`; do
38		m=$(( i + mdstart - 1 ))
39		[ ! -d ${mntpoint}$m ] && mkdir ${mntpoint}$m
40		mount | grep "$mntpoint" | grep -q md$m && umount ${mntpoint}$m
41	done
42
43	# start the parallel tests
44	touch /tmp/$0
45	for i in `jot $mounts`; do
46		m=$(( i + mdstart - 1 ))
47		./$0 $m &
48		./$0 find $m > /dev/null 2>&1 &
49	done
50	wait
51else
52	if [ $1 = find ]; then
53		while [ -r /tmp/$0 ]; do
54			ls -lR ${mntpoint}*
55		done
56	else
57
58		# The test: Parallel mount and unmounts
59		for i in `jot 128`; do
60			m=$1
61			mount -t procfs proc ${mntpoint}$m
62			while mount | grep -qw $mntpoint$m; do
63				opt=$([ $((`date '+%s'` % 2)) -eq 0 ] && echo "-f")
64				umount $opt ${mntpoint}$m > /dev/null 2>&1
65			done
66		done
67		rm -f /tmp/$0
68	fi
69fi
70