1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5# 6# Copyright (c) 2017 Konstantin Belousov <kib@FreeBSD.org> 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29 30[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 31. ../default.cfg 32 33# Regression test for: 34# Mark pages after EOF as clean after pageout. 35# https://reviews.freebsd.org/D11697 36# Committed as r321580 + r321581. 37 38dir=/tmp 39odir=`pwd` 40cd $dir 41sed '1,/^EOF/d' < $odir/$0 > $dir/nfs_halfpage.c 42mycc -o nfs_halfpage -Wall -Wextra -O0 -g nfs_halfpage.c || exit 1 43rm -f nfs_halfpage.c 44cd $odir 45 46[ -z "$nfs_export" ] && exit 0 47ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1 || 48 exit 0 49 50mount | grep "$mntpoint" | grep -q nfs && umount $mntpoint 51mount -t nfs -o tcp -o retrycnt=3 -o intr,soft -o rw $nfs_export $mntpoint 52 53file=$mntpoint/nfs_halfpage.file 54/tmp/nfs_halfpage $file 55 56echo "Reboot now to trigger syncing disks loop." 57sleep 60 58 59rm $file 60for i in `jot 6`; do 61 mount | grep -q "on $mntpoint " || break 62 umount $mntpoint && break || sleep 10 63done 64[ $i -eq 6 ] && s=1 || s=0 65rm -f /tmp/nfs_halfpage 66 67exit $s 68EOF 69/* $Id: nfs_halfpage.c,v 1.2 2017/07/23 09:36:23 kostik Exp kostik $ */ 70 71#include <sys/fcntl.h> 72#include <sys/mman.h> 73#include <err.h> 74#include <unistd.h> 75 76int 77main(int argc __unused, char *argv[]) 78{ 79 char *m; 80 int error, fd, pgsz, sz; 81 82 pgsz = getpagesize(); 83 fd = open(argv[1], O_RDWR | O_CREAT | O_TRUNC, 0666); 84 if (fd == -1) 85 err(1, "open %s", argv[1]); 86 sz = pgsz / 4; 87 error = lseek(fd, sz, SEEK_SET); 88 if (error == -1) 89 err(1, "lseek"); 90 error = write(fd, "a", 1); 91 if (error == -1) 92 err(1, "write"); 93 else if (error != 1) 94 errx(1, "short write"); 95 m = mmap(NULL, sz + 1, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); 96 if (m == MAP_FAILED) 97 err(1, "mmap"); 98 m[0] = 'x'; 99} 100