140 lines
3.3 KiB
Bash
Executable File
140 lines
3.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2013 EMC Corp.
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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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# SU problem with "mkdir(d.008740.000987): Too many links" seen.
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > rename11.c
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mycc -o rename11 -Wall -Wextra rename11.c || exit 1
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rm -f rename11.c
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mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
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mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 2g -u $mdstart || exit 1
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bsdlabel -w md$mdstart auto
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[ $# -eq 1 ] && newfs_flags=$1 # Problem only seen with SU
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echo newfs $newfs_flags md${mdstart}$part
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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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mkdir $mntpoint/dir
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(
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cd $mntpoint/dir
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/tmp/rename11 || echo FAIL
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)
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while mount | grep "on $mntpoint " | grep -q /dev/md; 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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rm -rf /tmp/rename11
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exit $s
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EOF
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#include <sys/types.h>
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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 <libgen.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define LOOPS 10
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#define PARALLEL 3
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#define ND 5000
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static void
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check(char *name)
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{
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struct stat sb;
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if (stat(name, &sb) == -1)
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warn("stat(%s)", name);
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else
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warnx("stat(%s) succeeded!", name);
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}
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static void
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dirs(void)
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{
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pid_t pid;
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int i, j;
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char name[80], to[80];
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pid = getpid();
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for (j = 0; j < LOOPS; j++) {
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for (i = 0; i < ND; i++) {
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snprintf(name, sizeof(name), "d.%06d.%06d", pid, i);
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if (mkdir(name, 0700) == -1)
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err(1, "mkdir(%s)", name);
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snprintf(to , sizeof(to ), "d2.%06d.%06d", pid, i);
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if (rename(name, to) == -1)
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warn("rename(%s, %s)", name, to);
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if (rename(to, name) == -1)
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warn("rename(%s, %s)", to, name);
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if (rmdir(name) == -1) {
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check(name);
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err(1, "rmdir(%s)", name);
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}
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}
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}
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_exit(0);
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}
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int
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main(void)
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{
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int i, r, s;
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r = 0;
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for (i = 0; i < PARALLEL; i++) {
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if (fork() == 0)
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dirs();
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}
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for (i = 0; i < PARALLEL; i++) {
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wait(&s);
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r += WEXITSTATUS(s);
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}
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return (r);
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}
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