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