xref: /freebsd/tools/test/stress2/misc/rename11.sh (revision 833a452e9f082a7982a31c21f0da437dbbe0a39d)
1#!/bin/sh
2
3#
4# Copyright (c) 2013 EMC Corp.
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# SU problem with "mkdir(d.008740.000987): Too many links" seen.
30
31[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
32
33. ../default.cfg
34
35here=`pwd`
36cd /tmp
37sed '1,/^EOF/d' < $here/$0 > rename11.c
38mycc -o rename11 -Wall -Wextra rename11.c || exit 1
39rm -f rename11.c
40
41mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
42mdconfig -l | grep -q md$mdstart &&  mdconfig -d -u $mdstart
43
44mdconfig -a -t swap -s 2g -u $mdstart || exit 1
45bsdlabel -w md$mdstart auto
46
47[ $# -eq 1 ] && newfs_flags=$1	# Problem only seen with SU
48echo newfs $newfs_flags md${mdstart}$part
49newfs $newfs_flags md${mdstart}$part > /dev/null
50mount /dev/md${mdstart}$part $mntpoint
51
52mkdir $mntpoint/dir
53(
54	cd $mntpoint/dir
55	/tmp/rename11 || echo FAIL
56)
57
58while mount | grep "on $mntpoint " | grep -q /dev/md; do
59	umount $mntpoint || sleep 1
60done
61
62checkfs /dev/md${mdstart}$part; s=$?
63mdconfig -d -u $mdstart
64rm -rf /tmp/rename11
65exit $s
66EOF
67#include <sys/types.h>
68#include <sys/stat.h>
69#include <sys/wait.h>
70#include <err.h>
71#include <fcntl.h>
72#include <libgen.h>
73#include <stdio.h>
74#include <stdlib.h>
75#include <string.h>
76#include <unistd.h>
77
78#define LOOPS 10
79#define PARALLEL 3
80#define ND 5000
81
82static void
83check(char *name)
84{
85	struct stat sb;
86
87	if (stat(name, &sb) == -1)
88		warn("stat(%s)", name);
89	else
90		warnx("stat(%s) succeeded!", name);
91}
92
93static void
94dirs(void)
95{
96	pid_t pid;
97	int i, j;
98	char name[80], to[80];
99
100	pid = getpid();
101
102	for (j = 0; j < LOOPS; j++) {
103		for (i = 0; i < ND; i++) {
104			snprintf(name, sizeof(name), "d.%06d.%06d", pid, i);
105			if (mkdir(name, 0700) == -1)
106				err(1, "mkdir(%s)", name);
107			snprintf(to  , sizeof(to  ), "d2.%06d.%06d", pid, i);
108			if (rename(name, to) == -1)
109				warn("rename(%s, %s)", name, to);
110			if (rename(to, name) == -1)
111				warn("rename(%s, %s)", to, name);
112			if (rmdir(name) == -1) {
113				check(name);
114				err(1, "rmdir(%s)", name);
115			}
116		}
117	}
118
119	_exit(0);
120}
121
122int
123main(void)
124{
125	int i, r, s;
126
127	r = 0;
128	for (i = 0; i < PARALLEL; i++) {
129		if (fork() == 0)
130			dirs();
131	}
132
133	for (i = 0; i < PARALLEL; i++) {
134		wait(&s);
135		r += WEXITSTATUS(s);
136	}
137
138	return (r);
139}
140