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
4source _common.sh
5
6# Kselftest frmework requirement - SKIP code is 4.
7ksft_skip=4
8
9ensure_write_succ()
10{
11 file=$1
12 content=$2
13 reason=$3
14
15 if ! echo "$content" > "$file"
16 then
17 echo "writing $content to $file failed"
18 echo "expected success because $reason"
19 exit 1
20 fi
21}
22
23ensure_write_fail()
24{
25 file=$1
26 content=$2
27 reason=$3
28
29 if (echo "$content" > "$file") 2> /dev/null
30 then
31 echo "writing $content to $file succeed ($fail_reason)"
32 echo "expected failure because $reason"
33 exit 1
34 fi
35}
36
37ensure_dir()
38{
39 dir=$1
40 to_ensure=$2
41 if [ "$to_ensure" = "exist" ] && [ ! -d "$dir" ]
42 then
43 echo "$dir dir is expected but not found"
44 exit 1
45 elif [ "$to_ensure" = "not_exist" ] && [ -d "$dir" ]
46 then
47 echo "$dir dir is not expected but found"
48 exit 1
49 fi
50}
51
52ensure_file()
53{
54 file=$1
55 to_ensure=$2
56 permission=$3
57 if [ "$to_ensure" = "exist" ]
58 then
59 if [ ! -f "$file" ]
60 then
61 echo "$file is expected but not found"
62 exit 1
63 fi
64 perm=$(stat -c "%a" "$file")
65 if [ ! "$perm" = "$permission" ]
66 then
67 echo "$file permission: expected $permission but $perm"
68 exit 1
69 fi
70 elif [ "$to_ensure" = "not_exist" ] && [ -f "$dir" ]
71 then
72 echo "$file is not expected but found"
73 exit 1
74 fi
75}
76
77test_range()
78{
79 range_dir=$1
80 ensure_dir "$range_dir" "exist"
81 ensure_file "$range_dir/min" "exist" 600
82 ensure_file "$range_dir/max" "exist" 600
83}
84
85test_tried_regions()
86{
87 tried_regions_dir=$1
88 ensure_dir "$tried_regions_dir" "exist"
89 ensure_file "$tried_regions_dir/total_bytes" "exist" "400"
90}
91
92test_stats()
93{
94 stats_dir=$1
95 ensure_dir "$stats_dir" "exist"
96 for f in nr_tried sz_tried nr_applied sz_applied qt_exceeds
97 do
98 ensure_file "$stats_dir/$f" "exist" "400"
99 done
100}
101
102test_filter()
103{
104 filter_dir=$1
105 ensure_file "$filter_dir/type" "exist" "600"
106 ensure_write_succ "$filter_dir/type" "anon" "valid input"
107 ensure_write_succ "$filter_dir/type" "memcg" "valid input"
108 ensure_write_succ "$filter_dir/type" "addr" "valid input"
109 ensure_write_succ "$filter_dir/type" "target" "valid input"
110 ensure_write_fail "$filter_dir/type" "foo" "invalid input"
111 ensure_file "$filter_dir/matching" "exist" "600"
112 ensure_file "$filter_dir/memcg_path" "exist" "600"
113 ensure_file "$filter_dir/addr_start" "exist" "600"
114 ensure_file "$filter_dir/addr_end" "exist" "600"
115 ensure_file "$filter_dir/damon_target_idx" "exist" "600"
116}
117
118test_filters()
119{
120 filters_dir=$1
121 ensure_dir "$filters_dir" "exist"
122 ensure_file "$filters_dir/nr_filters" "exist" "600"
123 ensure_write_succ "$filters_dir/nr_filters" "1" "valid input"
124 test_filter "$filters_dir/0"
125
126 ensure_write_succ "$filters_dir/nr_filters" "2" "valid input"
127 test_filter "$filters_dir/0"
128 test_filter "$filters_dir/1"
129
130 ensure_write_succ "$filters_dir/nr_filters" "0" "valid input"
131 ensure_dir "$filters_dir/0" "not_exist"
132 ensure_dir "$filters_dir/1" "not_exist"
133}
134
135test_watermarks()
136{
137 watermarks_dir=$1
138 ensure_dir "$watermarks_dir" "exist"
139 ensure_file "$watermarks_dir/metric" "exist" "600"
140 ensure_file "$watermarks_dir/interval_us" "exist" "600"
141 ensure_file "$watermarks_dir/high" "exist" "600"
142 ensure_file "$watermarks_dir/mid" "exist" "600"
143 ensure_file "$watermarks_dir/low" "exist" "600"
144}
145
146test_weights()
147{
148 weights_dir=$1
149 ensure_dir "$weights_dir" "exist"
150 ensure_file "$weights_dir/sz_permil" "exist" "600"
151 ensure_file "$weights_dir/nr_accesses_permil" "exist" "600"
152 ensure_file "$weights_dir/age_permil" "exist" "600"
153}
154
155test_goal()
156{
157 goal_dir=$1
158 ensure_dir "$goal_dir" "exist"
159 ensure_file "$goal_dir/target_value" "exist" "600"
160 ensure_file "$goal_dir/current_value" "exist" "600"
161}
162
163test_goals()
164{
165 goals_dir=$1
166 ensure_dir "$goals_dir" "exist"
167 ensure_file "$goals_dir/nr_goals" "exist" "600"
168
169 ensure_write_succ "$goals_dir/nr_goals" "1" "valid input"
170 test_goal "$goals_dir/0"
171
172 ensure_write_succ "$goals_dir/nr_goals" "2" "valid input"
173 test_goal "$goals_dir/0"
174 test_goal "$goals_dir/1"
175
176 ensure_write_succ "$goals_dir/nr_goals" "0" "valid input"
177 ensure_dir "$goals_dir/0" "not_exist"
178 ensure_dir "$goals_dir/1" "not_exist"
179}
180
181test_quotas()
182{
183 quotas_dir=$1
184 ensure_dir "$quotas_dir" "exist"
185 ensure_file "$quotas_dir/ms" "exist" 600
186 ensure_file "$quotas_dir/bytes" "exist" 600
187 ensure_file "$quotas_dir/reset_interval_ms" "exist" 600
188 test_weights "$quotas_dir/weights"
189 test_goals "$quotas_dir/goals"
190}
191
192test_access_pattern()
193{
194 access_pattern_dir=$1
195 ensure_dir "$access_pattern_dir" "exist"
196 test_range "$access_pattern_dir/age"
197 test_range "$access_pattern_dir/nr_accesses"
198 test_range "$access_pattern_dir/sz"
199}
200
201test_scheme()
202{
203 scheme_dir=$1
204 ensure_dir "$scheme_dir" "exist"
205 ensure_file "$scheme_dir/action" "exist" "600"
206 test_access_pattern "$scheme_dir/access_pattern"
207 ensure_file "$scheme_dir/apply_interval_us" "exist" "600"
208 test_quotas "$scheme_dir/quotas"
209 test_watermarks "$scheme_dir/watermarks"
210 test_filters "$scheme_dir/filters"
211 test_stats "$scheme_dir/stats"
212 test_tried_regions "$scheme_dir/tried_regions"
213}
214
215test_schemes()
216{
217 schemes_dir=$1
218 ensure_dir "$schemes_dir" "exist"
219 ensure_file "$schemes_dir/nr_schemes" "exist" 600
220
221 ensure_write_succ "$schemes_dir/nr_schemes" "1" "valid input"
222 test_scheme "$schemes_dir/0"
223
224 ensure_write_succ "$schemes_dir/nr_schemes" "2" "valid input"
225 test_scheme "$schemes_dir/0"
226 test_scheme "$schemes_dir/1"
227
228 ensure_write_succ "$schemes_dir/nr_schemes" "0" "valid input"
229 ensure_dir "$schemes_dir/0" "not_exist"
230 ensure_dir "$schemes_dir/1" "not_exist"
231}
232
233test_region()
234{
235 region_dir=$1
236 ensure_dir "$region_dir" "exist"
237 ensure_file "$region_dir/start" "exist" 600
238 ensure_file "$region_dir/end" "exist" 600
239}
240
241test_regions()
242{
243 regions_dir=$1
244 ensure_dir "$regions_dir" "exist"
245 ensure_file "$regions_dir/nr_regions" "exist" 600
246
247 ensure_write_succ "$regions_dir/nr_regions" "1" "valid input"
248 test_region "$regions_dir/0"
249
250 ensure_write_succ "$regions_dir/nr_regions" "2" "valid input"
251 test_region "$regions_dir/0"
252 test_region "$regions_dir/1"
253
254 ensure_write_succ "$regions_dir/nr_regions" "0" "valid input"
255 ensure_dir "$regions_dir/0" "not_exist"
256 ensure_dir "$regions_dir/1" "not_exist"
257}
258
259test_target()
260{
261 target_dir=$1
262 ensure_dir "$target_dir" "exist"
263 ensure_file "$target_dir/pid_target" "exist" "600"
264 test_regions "$target_dir/regions"
265}
266
267test_targets()
268{
269 targets_dir=$1
270 ensure_dir "$targets_dir" "exist"
271 ensure_file "$targets_dir/nr_targets" "exist" 600
272
273 ensure_write_succ "$targets_dir/nr_targets" "1" "valid input"
274 test_target "$targets_dir/0"
275
276 ensure_write_succ "$targets_dir/nr_targets" "2" "valid input"
277 test_target "$targets_dir/0"
278 test_target "$targets_dir/1"
279
280 ensure_write_succ "$targets_dir/nr_targets" "0" "valid input"
281 ensure_dir "$targets_dir/0" "not_exist"
282 ensure_dir "$targets_dir/1" "not_exist"
283}
284
285test_intervals()
286{
287 intervals_dir=$1
288 ensure_dir "$intervals_dir" "exist"
289 ensure_file "$intervals_dir/aggr_us" "exist" "600"
290 ensure_file "$intervals_dir/sample_us" "exist" "600"
291 ensure_file "$intervals_dir/update_us" "exist" "600"
292}
293
294test_monitoring_attrs()
295{
296 monitoring_attrs_dir=$1
297 ensure_dir "$monitoring_attrs_dir" "exist"
298 test_intervals "$monitoring_attrs_dir/intervals"
299 test_range "$monitoring_attrs_dir/nr_regions"
300}
301
302test_context()
303{
304 context_dir=$1
305 ensure_dir "$context_dir" "exist"
306 ensure_file "$context_dir/avail_operations" "exit" 400
307 ensure_file "$context_dir/operations" "exist" 600
308 test_monitoring_attrs "$context_dir/monitoring_attrs"
309 test_targets "$context_dir/targets"
310 test_schemes "$context_dir/schemes"
311}
312
313test_contexts()
314{
315 contexts_dir=$1
316 ensure_dir "$contexts_dir" "exist"
317 ensure_file "$contexts_dir/nr_contexts" "exist" 600
318
319 ensure_write_succ "$contexts_dir/nr_contexts" "1" "valid input"
320 test_context "$contexts_dir/0"
321
322 ensure_write_fail "$contexts_dir/nr_contexts" "2" "only 0/1 are supported"
323 test_context "$contexts_dir/0"
324
325 ensure_write_succ "$contexts_dir/nr_contexts" "0" "valid input"
326 ensure_dir "$contexts_dir/0" "not_exist"
327}
328
329test_kdamond()
330{
331 kdamond_dir=$1
332 ensure_dir "$kdamond_dir" "exist"
333 ensure_file "$kdamond_dir/state" "exist" "600"
334 ensure_file "$kdamond_dir/pid" "exist" 400
335 test_contexts "$kdamond_dir/contexts"
336}
337
338test_kdamonds()
339{
340 kdamonds_dir=$1
341 ensure_dir "$kdamonds_dir" "exist"
342
343 ensure_file "$kdamonds_dir/nr_kdamonds" "exist" "600"
344
345 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "1" "valid input"
346 test_kdamond "$kdamonds_dir/0"
347
348 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "2" "valid input"
349 test_kdamond "$kdamonds_dir/0"
350 test_kdamond "$kdamonds_dir/1"
351
352 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "0" "valid input"
353 ensure_dir "$kdamonds_dir/0" "not_exist"
354 ensure_dir "$kdamonds_dir/1" "not_exist"
355}
356
357test_damon_sysfs()
358{
359 damon_sysfs=$1
360 if [ ! -d "$damon_sysfs" ]
361 then
362 echo "$damon_sysfs not found"
363 exit $ksft_skip
364 fi
365
366 test_kdamonds "$damon_sysfs/kdamonds"
367}
368
369check_dependencies
370test_damon_sysfs "/sys/kernel/mm/damon/admin"