113 lines
2.8 KiB
Bash
Executable File
113 lines
2.8 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2015 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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# Verify that mmap access updates mtime and ctime on files located on a
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# tmpfs FS.
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# Fixed by r277828 and r277969.
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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odir=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $odir/$0 > tmpfs14.c
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rm -f /tmp/tmpfs14
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mycc -o tmpfs14 -Wall -Wextra -g -O2 tmpfs14.c || exit 1
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rm -f tmpfs14.c
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cd $odir
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mount | grep -q "$mntpoint " && umount -f $mntpoint
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mount -t tmpfs tmpfs $mntpoint
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(cd $mntpoint; /tmp/tmpfs14) &
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sleep .5
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set `stat -f "%m %c" $mntpoint/test`
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m1=$1
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c1=$2
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while pgrep -q tmpfs14; do
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set `stat -f "%m %c" $mntpoint/test`
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[ "$m1" != "$1" ] && break
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[ "$c1" != "$2" ] && break
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sleep 1
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done
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[ "$m1" = "$1" -o "$c1" = "$2" ] &&
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echo "FAIL Unchanged time $m1 $c1 / $1 $2"
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wait
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while mount | grep $mntpoint | grep -q tmpfs; do
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umount $mntpoint || sleep 1
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done
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rm -f /tmp/tmpfs14
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exit 0
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EOF
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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char *file = "test";
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int
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main(void)
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{
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char *p;
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size_t len;
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int fd, i;
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if ((fd = open(file, O_RDWR | O_CREAT, 0644)) == -1)
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err(1, "open(%s)", file);
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if (write(fd, "abcdef", 7) < 0)
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err(1, "write");
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close(fd);
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len = getpagesize();
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for (i = 0; i < 10; i++) {
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sleep(1);
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if ((fd = open(file, O_RDWR | O_CREAT, 0644)) == -1)
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err(1, "open(%s)", file);
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if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED)
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err(1, "mmap");
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p[0] = '0' + i;
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munmap(p, len);
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close(fd);
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}
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return 0;
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}
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