1#! /bin/sh
2
3################################################################################
4##                                                                            ##
5## Copyright (c) 2012 FUJITSU LIMITED                                         ##
6##                                                                            ##
7## This program is free software;  you can redistribute it and#or modify      ##
8## it under the terms of the GNU General Public License as published by       ##
9## the Free Software Foundation; either version 2 of the License, or          ##
10## (at your option) any later version.                                        ##
11##                                                                            ##
12## This program is distributed in the hope that it will be useful, but        ##
13## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
14## or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License   ##
15## for more details.                                                          ##
16##                                                                            ##
17## You should have received a copy of the GNU General Public License          ##
18## along with this program;  if not, write to the Free Software               ##
19## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA    ##
20##                                                                            ##
21################################################################################
22#
23# File :        memcg_use_hierarchy_test.sh
24# Description:  Tests memory.use_hierarchy.
25# Author:       Peng Haitao <penght@cn.fujitsu.com>
26# History:      2012/01/14 - Created.
27#
28
29export TCID="memcg_use_hierarchy_test"
30export TST_TOTAL=3
31export TST_COUNT=0
32
33. memcg_lib.sh || exit 1
34
35# test if one of the ancestors goes over its limit, the proces will be killed
36testcase_1()
37{
38	echo 1 > memory.use_hierarchy
39	echo $PAGESIZE > memory.limit_in_bytes
40
41	mkdir subgroup
42	cd subgroup
43	test_proc_kill $((PAGESIZE*3)) "--mmap-lock1" $((PAGESIZE*2)) 0
44
45	cd ..
46	rmdir subgroup
47}
48
49# test Enabling will fail if the cgroup already has other cgroups
50testcase_2()
51{
52	mkdir subgroup
53	echo 1 > memory.use_hierarchy 2> /dev/null
54	result $(( !($? != 0) )) "return value is $?"
55
56	rmdir subgroup
57}
58
59# test disabling will fail if the parent cgroup has enabled hierarchy.
60testcase_3()
61{
62	echo 1 > memory.use_hierarchy
63	mkdir subgroup
64	echo 0 > subgroup/memory.use_hierarchy 2> /dev/null
65	result $(( !($? != 0) )) "return value is $?"
66
67	rmdir subgroup
68}
69
70# Run all the test cases
71for i in $(seq 1 $TST_TOTAL)
72do
73	export TST_COUNT=$(( $TST_COUNT + 1 ))
74	cur_id=$i
75
76	do_mount
77	if [ $? -ne 0 ]; then
78		echo "Cannot create memcg"
79		exit 1
80	fi
81
82	# prepare
83	mkdir /dev/memcg/$i 2> /dev/null
84	cd /dev/memcg/$i
85
86	# run the case
87	testcase_$i
88
89	# clean up
90	sleep 1
91	cd $TEST_PATH
92	rmdir /dev/memcg/$i
93
94	cleanup
95done
96
97if [ $failed -ne 0 ]; then
98	exit $failed
99else
100	exit 0
101fi
102