1#!/bin/sh 2 3# 4# Copyright (c) 2011 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# Rename scenario from kern/156545 by Konstantin, 30# konstantin malov kaspersky com 31 32# On 8.2-STABLE fsck reports 33# "xxx IS AN EXTRANEOUS HARD LINK TO DIRECTORY yyy" 34# Fixed by r220986 35 36[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 37 38. ../default.cfg 39 40mount | grep -q "$mntpoint" && umount $mntpoint 41mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart 42 43mdconfig -a -t swap -s 1g -u $mdstart 44 45newfs $newfs_flags md$mdstart > /dev/null 46mount /dev/md$mdstart $mntpoint 47 48here=`pwd` 49cd /tmp 50sed '1,/^EOF/d' < $here/$0 > rename5.c 51mycc -o rename5 -Wall -Wextra -O2 rename5.c 52rm -f rename5.c 53 54cd $mntpoint 55 56/tmp/rename5 57 58cd $here 59rm -f /tmp/rename5 60 61while mount | grep -q md$mdstart; do 62 umount $mntpoint || sleep 1 63done 64 65checkfs /dev/md$mdstart; s=$? 66 67mdconfig -d -u $mdstart 68exit $s 69EOF 70#include <sys/stat.h> 71#include <sys/wait.h> 72 73#include <err.h> 74#include <fcntl.h> 75#include <stdio.h> 76#include <stdlib.h> 77#include <time.h> 78#include <unistd.h> 79 80#define N 1000 81#define RUNTIME (5 * 60) 82 83void 84test(void) 85{ 86 pid_t pid; 87 int i; 88 char from[128], to[128]; 89 90 pid = getpid(); 91 for (i = 0; i < N; i++) { 92 snprintf(from, sizeof(from), "src/dir.%06d", i); 93 snprintf(to , sizeof(to), "src/dir.%06d.%06d", i, pid); 94 (void)rename(from, to); 95 } 96 _exit(0); 97} 98 99int 100main() 101{ 102 time_t start; 103 int fd, i; 104 char dir[128], file[128]; 105 106 start = time(NULL); 107 while (time(NULL) - start < RUNTIME) { 108 if (mkdir("src", 0700) == -1) 109 err(1, "mkdir(src)"); 110 111 for (i = 0; i < N; i++) { 112 snprintf(dir, sizeof(dir), "src/dir.%06d", i); 113 if (mkdir(dir, 0700) == -1) 114 err(1, "mkdir(%s)", dir); 115 snprintf(file, sizeof(file), "%s/meta", dir); 116 if ((fd = open(file, O_RDWR | O_CREAT, 0600)) < 0) 117 err(1, "open(%s)", file); 118 close(fd); 119 snprintf(file, sizeof(file), "%s/data", dir); 120 if ((fd = open(file, O_RDWR | O_CREAT, 0600)) < 0) 121 err(1, "open(%s)", file); 122 close(fd); 123 } 124 125 for (i = 0; i < 2; i++) { 126 if (fork() == 0) 127 test(); 128 } 129 for (i = 0; i < 2; i++) 130 wait(NULL); 131 132 system("rm -rf src > /dev/null 2>&1"); 133 } 134 135 return (0); 136} 137