tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4# Kselftest frmework requirement - SKIP code is 4.
5ksft_skip=4
6
7ensure_write_succ()
8{
9 file=$1
10 content=$2
11 reason=$3
12
13 if ! echo "$content" > "$file"
14 then
15 echo "writing $content to $file failed"
16 echo "expected success because $reason"
17 exit 1
18 fi
19}
20
21ensure_write_fail()
22{
23 file=$1
24 content=$2
25 reason=$3
26
27 if echo "$content" > "$file"
28 then
29 echo "writing $content to $file succeed ($fail_reason)"
30 echo "expected failure because $reason"
31 exit 1
32 fi
33}
34
35ensure_dir()
36{
37 dir=$1
38 to_ensure=$2
39 if [ "$to_ensure" = "exist" ] && [ ! -d "$dir" ]
40 then
41 echo "$dir dir is expected but not found"
42 exit 1
43 elif [ "$to_ensure" = "not_exist" ] && [ -d "$dir" ]
44 then
45 echo "$dir dir is not expected but found"
46 exit 1
47 fi
48}
49
50ensure_file()
51{
52 file=$1
53 to_ensure=$2
54 permission=$3
55 if [ "$to_ensure" = "exist" ]
56 then
57 if [ ! -f "$file" ]
58 then
59 echo "$file is expected but not found"
60 exit 1
61 fi
62 perm=$(stat -c "%a" "$file")
63 if [ ! "$perm" = "$permission" ]
64 then
65 echo "$file permission: expected $permission but $perm"
66 exit 1
67 fi
68 elif [ "$to_ensure" = "not_exist" ] && [ -f "$dir" ]
69 then
70 echo "$file is not expected but found"
71 exit 1
72 fi
73}
74
75test_range()
76{
77 range_dir=$1
78 ensure_dir "$range_dir" "exist"
79 ensure_file "$range_dir/min" "exist" 600
80 ensure_file "$range_dir/max" "exist" 600
81}
82
83test_tried_regions()
84{
85 tried_regions_dir=$1
86 ensure_dir "$tried_regions_dir" "exist"
87}
88
89test_stats()
90{
91 stats_dir=$1
92 ensure_dir "$stats_dir" "exist"
93 for f in nr_tried sz_tried nr_applied sz_applied qt_exceeds
94 do
95 ensure_file "$stats_dir/$f" "exist" "400"
96 done
97}
98
99test_watermarks()
100{
101 watermarks_dir=$1
102 ensure_dir "$watermarks_dir" "exist"
103 ensure_file "$watermarks_dir/metric" "exist" "600"
104 ensure_file "$watermarks_dir/interval_us" "exist" "600"
105 ensure_file "$watermarks_dir/high" "exist" "600"
106 ensure_file "$watermarks_dir/mid" "exist" "600"
107 ensure_file "$watermarks_dir/low" "exist" "600"
108}
109
110test_weights()
111{
112 weights_dir=$1
113 ensure_dir "$weights_dir" "exist"
114 ensure_file "$weights_dir/sz_permil" "exist" "600"
115 ensure_file "$weights_dir/nr_accesses_permil" "exist" "600"
116 ensure_file "$weights_dir/age_permil" "exist" "600"
117}
118
119test_quotas()
120{
121 quotas_dir=$1
122 ensure_dir "$quotas_dir" "exist"
123 ensure_file "$quotas_dir/ms" "exist" 600
124 ensure_file "$quotas_dir/bytes" "exist" 600
125 ensure_file "$quotas_dir/reset_interval_ms" "exist" 600
126 test_weights "$quotas_dir/weights"
127}
128
129test_access_pattern()
130{
131 access_pattern_dir=$1
132 ensure_dir "$access_pattern_dir" "exist"
133 test_range "$access_pattern_dir/age"
134 test_range "$access_pattern_dir/nr_accesses"
135 test_range "$access_pattern_dir/sz"
136}
137
138test_scheme()
139{
140 scheme_dir=$1
141 ensure_dir "$scheme_dir" "exist"
142 ensure_file "$scheme_dir/action" "exist" "600"
143 test_access_pattern "$scheme_dir/access_pattern"
144 test_quotas "$scheme_dir/quotas"
145 test_watermarks "$scheme_dir/watermarks"
146 test_stats "$scheme_dir/stats"
147 test_tried_regions "$scheme_dir/tried_regions"
148}
149
150test_schemes()
151{
152 schemes_dir=$1
153 ensure_dir "$schemes_dir" "exist"
154 ensure_file "$schemes_dir/nr_schemes" "exist" 600
155
156 ensure_write_succ "$schemes_dir/nr_schemes" "1" "valid input"
157 test_scheme "$schemes_dir/0"
158
159 ensure_write_succ "$schemes_dir/nr_schemes" "2" "valid input"
160 test_scheme "$schemes_dir/0"
161 test_scheme "$schemes_dir/1"
162
163 ensure_write_succ "$schemes_dir/nr_schemes" "0" "valid input"
164 ensure_dir "$schemes_dir/0" "not_exist"
165 ensure_dir "$schemes_dir/1" "not_exist"
166}
167
168test_region()
169{
170 region_dir=$1
171 ensure_dir "$region_dir" "exist"
172 ensure_file "$region_dir/start" "exist" 600
173 ensure_file "$region_dir/end" "exist" 600
174}
175
176test_regions()
177{
178 regions_dir=$1
179 ensure_dir "$regions_dir" "exist"
180 ensure_file "$regions_dir/nr_regions" "exist" 600
181
182 ensure_write_succ "$regions_dir/nr_regions" "1" "valid input"
183 test_region "$regions_dir/0"
184
185 ensure_write_succ "$regions_dir/nr_regions" "2" "valid input"
186 test_region "$regions_dir/0"
187 test_region "$regions_dir/1"
188
189 ensure_write_succ "$regions_dir/nr_regions" "0" "valid input"
190 ensure_dir "$regions_dir/0" "not_exist"
191 ensure_dir "$regions_dir/1" "not_exist"
192}
193
194test_target()
195{
196 target_dir=$1
197 ensure_dir "$target_dir" "exist"
198 ensure_file "$target_dir/pid_target" "exist" "600"
199 test_regions "$target_dir/regions"
200}
201
202test_targets()
203{
204 targets_dir=$1
205 ensure_dir "$targets_dir" "exist"
206 ensure_file "$targets_dir/nr_targets" "exist" 600
207
208 ensure_write_succ "$targets_dir/nr_targets" "1" "valid input"
209 test_target "$targets_dir/0"
210
211 ensure_write_succ "$targets_dir/nr_targets" "2" "valid input"
212 test_target "$targets_dir/0"
213 test_target "$targets_dir/1"
214
215 ensure_write_succ "$targets_dir/nr_targets" "0" "valid input"
216 ensure_dir "$targets_dir/0" "not_exist"
217 ensure_dir "$targets_dir/1" "not_exist"
218}
219
220test_intervals()
221{
222 intervals_dir=$1
223 ensure_dir "$intervals_dir" "exist"
224 ensure_file "$intervals_dir/aggr_us" "exist" "600"
225 ensure_file "$intervals_dir/sample_us" "exist" "600"
226 ensure_file "$intervals_dir/update_us" "exist" "600"
227}
228
229test_monitoring_attrs()
230{
231 monitoring_attrs_dir=$1
232 ensure_dir "$monitoring_attrs_dir" "exist"
233 test_intervals "$monitoring_attrs_dir/intervals"
234 test_range "$monitoring_attrs_dir/nr_regions"
235}
236
237test_context()
238{
239 context_dir=$1
240 ensure_dir "$context_dir" "exist"
241 ensure_file "$context_dir/avail_operations" "exit" 400
242 ensure_file "$context_dir/operations" "exist" 600
243 test_monitoring_attrs "$context_dir/monitoring_attrs"
244 test_targets "$context_dir/targets"
245 test_schemes "$context_dir/schemes"
246}
247
248test_contexts()
249{
250 contexts_dir=$1
251 ensure_dir "$contexts_dir" "exist"
252 ensure_file "$contexts_dir/nr_contexts" "exist" 600
253
254 ensure_write_succ "$contexts_dir/nr_contexts" "1" "valid input"
255 test_context "$contexts_dir/0"
256
257 ensure_write_fail "$contexts_dir/nr_contexts" "2" "only 0/1 are supported"
258 test_context "$contexts_dir/0"
259
260 ensure_write_succ "$contexts_dir/nr_contexts" "0" "valid input"
261 ensure_dir "$contexts_dir/0" "not_exist"
262}
263
264test_kdamond()
265{
266 kdamond_dir=$1
267 ensure_dir "$kdamond_dir" "exist"
268 ensure_file "$kdamond_dir/state" "exist" "600"
269 ensure_file "$kdamond_dir/pid" "exist" 400
270 test_contexts "$kdamond_dir/contexts"
271}
272
273test_kdamonds()
274{
275 kdamonds_dir=$1
276 ensure_dir "$kdamonds_dir" "exist"
277
278 ensure_file "$kdamonds_dir/nr_kdamonds" "exist" "600"
279
280 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "1" "valid input"
281 test_kdamond "$kdamonds_dir/0"
282
283 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "2" "valid input"
284 test_kdamond "$kdamonds_dir/0"
285 test_kdamond "$kdamonds_dir/1"
286
287 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "0" "valid input"
288 ensure_dir "$kdamonds_dir/0" "not_exist"
289 ensure_dir "$kdamonds_dir/1" "not_exist"
290}
291
292test_damon_sysfs()
293{
294 damon_sysfs=$1
295 if [ ! -d "$damon_sysfs" ]
296 then
297 echo "$damon_sysfs not found"
298 exit $ksft_skip
299 fi
300
301 test_kdamonds "$damon_sysfs/kdamonds"
302}
303
304check_dependencies()
305{
306 if [ $EUID -ne 0 ]
307 then
308 echo "Run as root"
309 exit $ksft_skip
310 fi
311}
312
313check_dependencies
314test_damon_sysfs "/sys/kernel/mm/damon/admin"