127 lines
3.4 KiB
Bash
Executable File
127 lines
3.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2008 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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# Regression test for statfs problems with deleting a large number of files
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# $ ./statfs.sh
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# Filesystem 1K-blocks Used Avail Capacity iused ifree %iused Mounted on
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# /dev/ad0s1e 1982798 1782134 42042 98% 4965 254105 2% /tmp
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# Free inodes on /tmp: 254105
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# Creating 100000 files...
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# Deleting 100000 files...
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# Filesystem 1K-blocks Used Avail Capacity iused ifree %iused Mounted on
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# /dev/ad0s1e 1982798 -284096 2108272 -16% 4965 254105 2% /tmp
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# $ umount -f /tmp; mount /tmp
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# $ df -i /tmp
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# Filesystem 1K-blocks Used Avail Capacity iused ifree %iused Mounted on
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# /dev/ad0s1e 1982798 1784528 39648 98% 4965 254105 2% /tmp
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. ../default.cfg
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odir=`pwd`
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dir=/tmp
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cd $dir
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sed '1,/^EOF/d' < $odir/$0 > $dir/statfs.c
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mycc -o statfs -Wall statfs.c
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rm -f statfs.c
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df -i /tmp
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./statfs
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df -i /tmp
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exit
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EOF
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <errno.h>
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#include <err.h>
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int64_t
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inodes(void)
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{
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char path[MAXPATHLEN+1];
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struct statfs buf;
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sync();
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if (getcwd(path, sizeof(path)) == NULL)
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err(1, "getcwd()");
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if (statfs(path, &buf) < 0)
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err(1, "statfs(%s)", path);
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printf("Free inodes on %s: %jd\n", path, buf.f_ffree);
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return (buf.f_ffree);
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}
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int
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main()
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{
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int fd, i, j;
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int64_t size;
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pid_t pid;
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char file[128];
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size = inodes() - 1000;
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if (size > 100000)
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size = 100000;
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printf("Creating %jd files...", size); fflush(stdout);
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pid = getpid();
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for (j = 0; j < size; j++) {
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sprintf(file,"p%06d.%05d", pid, j);
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if ((fd = open(file, O_CREAT | O_TRUNC | O_WRONLY, 0666)) == -1) {
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if (errno != EINTR) {
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warn("creat(%s)", file);
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printf("break out at %d, errno %d\n", j, errno);
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break;
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}
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}
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if (fd != -1 && close(fd) == -1)
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err(2, "close(%d)", j);
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}
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printf("\nDeleting %jd files...", size); fflush(stdout);
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for (i = --j; i >= 0; i--) {
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sprintf(file,"p%06d.%05d", pid, i);
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if (unlink(file) == -1)
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err(3, "unlink(%s)", file);
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}
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printf("\n");
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return (0);
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}
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