#!/bin/sh
#
# $NetBSD: t_vnode_leak,v 1.5 2006/11/09 16:20:06 jmmv Exp $
#
# Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Julio M. Merino Vidal, developed as part of Google's Summer of Code
# 2005 program.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# $FreeBSD: head/tools/regression/tmpfs/t_vnode_leak 204608 2010-03-02 22:25:50Z joel $
#

#
# Verifies that vnodes are not leaked and that their reclaim operation works
# as expected: i.e., when all free vnodes are exhausted, unused ones have to
# be recycled, which is what the reclaim operation does.
#

test_run() {
	oldvnodes=$(sysctl kern.maxvnodes | awk '{ print $2; }')
	sysctl -w kern.maxvnodes=2000 >/dev/null || die

	test_name "vnodes are properly reclaimed"
	test_mount -o size=$(((4000 + 2) * 4096))
	for f in $(jot 4000); do
		mkdir ${f}
	done
	test_unmount

	sysctl -w kern.maxvnodes=${oldvnodes} >/dev/null || die
}

. ${SUBRDIR}/h_funcs.subr