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 $mdstart 44bsdlabel -w md$mdstart auto 45 46newfs $newfs_flags md${mdstart}$part > /dev/null 47mount /dev/md${mdstart}$part $mntpoint 48 49here=`pwd` 50cd /tmp 51sed '1,/^EOF/d' < $here/$0 > rename5.c 52mycc -o rename5 -Wall -Wextra -O2 rename5.c 53rm -f rename5.c 54 55cd $mntpoint 56 57/tmp/rename5 58 59cd $here 60rm -f /tmp/rename5 61 62while mount | grep -q md${mdstart}$part; do 63 umount $mntpoint || sleep 1 64done 65 66checkfs /dev/md${mdstart}$part; s=$? 67 68mdconfig -d -u $mdstart 69exit $s 70EOF 71#include <sys/stat.h> 72#include <sys/wait.h> 73 74#include <err.h> 75#include <fcntl.h> 76#include <stdio.h> 77#include <stdlib.h> 78#include <time.h> 79#include <unistd.h> 80 81#define N 1000 82#define RUNTIME (5 * 60) 83 84void 85test(void) 86{ 87 pid_t pid; 88 int i; 89 char from[128], to[128]; 90 91 pid = getpid(); 92 for (i = 0; i < N; i++) { 93 snprintf(from, sizeof(from), "src/dir.%06d", i); 94 snprintf(to , sizeof(to), "src/dir.%06d.%06d", i, pid); 95 (void)rename(from, to); 96 } 97 _exit(0); 98} 99 100int 101main() 102{ 103 time_t start; 104 int fd, i; 105 char dir[128], file[128]; 106 107 start = time(NULL); 108 while (time(NULL) - start < RUNTIME) { 109 if (mkdir("src", 0700) == -1) 110 err(1, "mkdir(src)"); 111 112 for (i = 0; i < N; i++) { 113 snprintf(dir, sizeof(dir), "src/dir.%06d", i); 114 if (mkdir(dir, 0700) == -1) 115 err(1, "mkdir(%s)", dir); 116 snprintf(file, sizeof(file), "%s/meta", dir); 117 if ((fd = open(file, O_RDWR | O_CREAT, 0600)) < 0) 118 err(1, "open(%s)", file); 119 close(fd); 120 snprintf(file, sizeof(file), "%s/data", dir); 121 if ((fd = open(file, O_RDWR | O_CREAT, 0600)) < 0) 122 err(1, "open(%s)", file); 123 close(fd); 124 } 125 126 for (i = 0; i < 2; i++) { 127 if (fork() == 0) 128 test(); 129 } 130 for (i = 0; i < 2; i++) 131 wait(NULL); 132 133 system("rm -rf src > /dev/null 2>&1"); 134 } 135 136 return (0); 137} 138