xref: /freebsd/tools/regression/tmpfs/t_sizes (revision 8fc257994d0ce2396196d7a06d50d20c8015f4b7)
1#!/bin/sh
2#
3# $NetBSD: t_sizes,v 1.6 2007/03/11 10:09:17 pooka Exp $
4#
5# Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
6# All rights reserved.
7#
8# This code is derived from software contributed to The NetBSD Foundation
9# by Julio M. Merino Vidal, developed as part of Google's Summer of Code
10# 2005 program.
11#
12# Redistribution and use in source and binary forms, with or without
13# modification, are permitted provided that the following conditions
14# are met:
15# 1. Redistributions of source code must retain the above copyright
16#    notice, this list of conditions and the following disclaimer.
17# 2. Redistributions in binary form must reproduce the above copyright
18#    notice, this list of conditions and the following disclaimer in the
19#    documentation and/or other materials provided with the distribution.
20#
21# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31# POSSIBILITY OF SUCH DAMAGE.
32#
33# $FreeBSD$
34#
35
36#
37# Verifies that the file system controls memory usage correctly.
38#
39
40test_run() {
41	test_mount -o  size=10485760
42
43	pagesize=$(sysctl hw.pagesize | cut -d ' ' -f 2)
44
45	test_name "Get status of clean filesystem"
46	eval $(${Src_Dir}/h_tools statvfs . | sed -e 's|^f_|cf_|')
47	cf_bused=$((${cf_blocks} - ${cf_bfree}))
48
49	test_name "Creation of small file"
50	echo a >a || die
51	test_name "statvfs(2) reports correct block accounting"
52	eval $(${Src_Dir}/h_tools statvfs .)
53	f_bused=$((${f_blocks} - ${f_bfree}))
54	[ ${f_bused} -gt 1 ] || die
55	rm a || die
56
57	test_name "Creation of big file"
58	dd if=/dev/zero of=a bs=1m count=5 >/dev/null 2>&1 || die
59	test_name "statvfs(2) reports correct block accounting"
60	eval $(${Src_Dir}/h_tools statvfs .)
61	f_bused=$((${f_blocks} - ${f_bfree}))
62	[ ${f_bused} -ne ${cf_bused} ] || die
63	[ ${f_bused} -gt $((5 * 1024 * 1024 / ${pagesize})) ] || die
64	of_bused=${f_bused}
65	rm a || die
66	eval $(${Src_Dir}/h_tools statvfs .)
67	f_bused=$((${f_blocks} - ${f_bfree}))
68	[ ${f_bused} -lt ${of_bused} ] || die
69
70	test_name "Creation of big file that overflows the filesystem"
71	of_bused=${f_bused}
72	dd if=/dev/zero of=a bs=1m count=15 >/dev/null 2>&1 && die
73	rm a || die
74	test_name "statvfs(2) reports correct block accounting"
75	eval $(${Src_Dir}/h_tools statvfs .)
76	f_bused=$((${f_blocks} - ${f_bfree}))
77	[ ${f_bused} -ge ${of_bused} -a ${f_bused} -le $((${of_bused} + 1)) ] \
78	    || die
79
80	test_name "Write to middle of a file does not change size"
81	dd if=/dev/zero of=a bs=1024 count=10 >/dev/null 2>&1 || die
82	sync
83	dd if=/dev/zero of=a bs=1024 conv=notrunc seek=1 count=1	\
84	     >/dev/null 2>&1 || die
85	sync
86	eval $(stat -s a)
87	[ ${st_size} -eq 10240 ] || die
88
89	test_unmount
90}
91
92. ${SUBRDIR}/h_funcs.subr
93