freebsd-nq/contrib/netbsd-tests/fs/tmpfs/t_vnode_leak.sh
Enji Cooper d3de062383 Port vnode_leak_test:main to FreeBSD
Use a simpler way of dumping kern.maxvnodes, i.e. `sysctl -n kern.maxvnodes`

The awk filtering method employed in NetBSD doesn't work on FreeBSD

MFC after:	1 month
Sponsored by:	Dell EMC Isilon
2016-09-20 16:27:34 +00:00

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# $NetBSD: t_vnode_leak.sh,v 1.6 2010/11/07 17:51:18 jmmv Exp $
#
# Copyright (c) 2005, 2006, 2007, 2008 The NetBSD Foundation, Inc.
# All rights reserved.
#
# 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
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
atf_test_case main cleanup
main_head() {
atf_set "descr" "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."
atf_set "require.user" "root"
}
main_body() {
echo "Lowering kern.maxvnodes to 2000"
# Begin FreeBSD
if true; then
sysctl -n kern.maxvnodes > oldvnodes
else
# End FreeBSD
sysctl kern.maxvnodes | awk '{ print $3; }' >oldvnodes
# Begin FreeBSD
fi
# End FreeBSD
atf_check -s eq:0 -o ignore -e empty sysctl -w kern.maxvnodes=2000
test_mount -o -s$(((4000 + 2) * 4096))
echo "Creating 4000 directories"
for f in $(jot 4000); do
mkdir ${f}
done
test_unmount
}
main_cleanup() {
oldvnodes=$(cat oldvnodes)
echo "Restoring kern.maxvnodes to ${oldvnodes}"
sysctl -w kern.maxvnodes=${oldvnodes}
}
atf_init_test_cases() {
. $(atf_get_srcdir)/../h_funcs.subr
. $(atf_get_srcdir)/h_funcs.subr
atf_add_test_case main
}