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#!/bin/sh
#
# Copyright (c) 2011 Peter Holm <pho@FreeBSD.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# Rename scenario from kern/156545 by Konstantin,
# konstantin malov kaspersky com
# On 8.2-STABLE fsck reports
# "xxx IS AN EXTRANEOUS HARD LINK TO DIRECTORY yyy"
# Fixed by r220986
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
mount | grep -q "$mntpoint" && umount $mntpoint
mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart
mdconfig -a -t swap -s 1g -u $mdstart
bsdlabel -w md$mdstart auto
newfs $newfs_flags md${mdstart}$part > /dev/null
mount /dev/md${mdstart}$part $mntpoint
here=`pwd`
cd /tmp
sed '1,/^EOF/d' < $here/$0 > rename5.c
mycc -o rename5 -Wall -Wextra -O2 rename5.c
rm -f rename5.c
cd $mntpoint
/tmp/rename5
cd $here
rm -f /tmp/rename5
while mount | grep -q md${mdstart}$part; do
umount $mntpoint || sleep 1
done
checkfs /dev/md${mdstart}$part; s=$?
mdconfig -d -u $mdstart
exit $s
EOF
#include <sys/stat.h>
#include <sys/wait.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#define N 1000
#define RUNTIME (5 * 60)
void
test(void)
{
pid_t pid;
int i;
char from[128], to[128];
pid = getpid();
for (i = 0; i < N; i++) {
snprintf(from, sizeof(from), "src/dir.%06d", i);
snprintf(to , sizeof(to), "src/dir.%06d.%06d", i, pid);
(void)rename(from, to);
}
_exit(0);
}
int
main()
{
time_t start;
int fd, i;
char dir[128], file[128];
start = time(NULL);
while (time(NULL) - start < RUNTIME) {
if (mkdir("src", 0700) == -1)
err(1, "mkdir(src)");
for (i = 0; i < N; i++) {
snprintf(dir, sizeof(dir), "src/dir.%06d", i);
if (mkdir(dir, 0700) == -1)
err(1, "mkdir(%s)", dir);
snprintf(file, sizeof(file), "%s/meta", dir);
if ((fd = open(file, O_RDWR | O_CREAT, 0600)) < 0)
err(1, "open(%s)", file);
close(fd);
snprintf(file, sizeof(file), "%s/data", dir);
if ((fd = open(file, O_RDWR | O_CREAT, 0600)) < 0)
err(1, "open(%s)", file);
close(fd);
}
for (i = 0; i < 2; i++) {
if (fork() == 0)
test();
}
for (i = 0; i < 2; i++)
wait(NULL);
system("rm -rf src > /dev/null 2>&1");
}
return (0);
}
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