xref: /src/tests/fs/tmpfs/t_vnode_leak.sh

# $NetBSD: t_vnode_leak.sh,v 1.4 2010/06/04 08:39:40 jmmv Exp $
#
# Copyright (c) 2005, 2006, 2007, 2008 The NetBSD Foundation, Inc.
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atf_test_case main
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"
	atf_set "use.fs" "true"
}
main_body() {
	echo "Lowering kern.maxvnodes to 2000"
	sysctl kern.maxvnodes | awk '{ print $3; }' >oldvnodes
	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
}