Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
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") 2> /dev/null
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_filter()
100{
101 filter_dir=$1
102 ensure_file "$filter_dir/type" "exist" "600"
103 ensure_write_succ "$filter_dir/type" "anon" "valid input"
104 ensure_write_succ "$filter_dir/type" "memcg" "valid input"
105 ensure_write_fail "$filter_dir/type" "foo" "invalid input"
106 ensure_file "$filter_dir/matching" "exist" "600"
107 ensure_file "$filter_dir/memcg_path" "exist" "600"
108}
109
110test_filters()
111{
112 filters_dir=$1
113 ensure_dir "$filters_dir" "exist"
114 ensure_file "$filters_dir/nr_filters" "exist" "600"
115 ensure_write_succ "$filters_dir/nr_filters" "1" "valid input"
116 test_filter "$filters_dir/0"
117
118 ensure_write_succ "$filters_dir/nr_filters" "2" "valid input"
119 test_filter "$filters_dir/0"
120 test_filter "$filters_dir/1"
121
122 ensure_write_succ "$filters_dir/nr_filters" "0" "valid input"
123 ensure_dir "$filters_dir/0" "not_exist"
124 ensure_dir "$filters_dir/1" "not_exist"
125}
126
127test_watermarks()
128{
129 watermarks_dir=$1
130 ensure_dir "$watermarks_dir" "exist"
131 ensure_file "$watermarks_dir/metric" "exist" "600"
132 ensure_file "$watermarks_dir/interval_us" "exist" "600"
133 ensure_file "$watermarks_dir/high" "exist" "600"
134 ensure_file "$watermarks_dir/mid" "exist" "600"
135 ensure_file "$watermarks_dir/low" "exist" "600"
136}
137
138test_weights()
139{
140 weights_dir=$1
141 ensure_dir "$weights_dir" "exist"
142 ensure_file "$weights_dir/sz_permil" "exist" "600"
143 ensure_file "$weights_dir/nr_accesses_permil" "exist" "600"
144 ensure_file "$weights_dir/age_permil" "exist" "600"
145}
146
147test_quotas()
148{
149 quotas_dir=$1
150 ensure_dir "$quotas_dir" "exist"
151 ensure_file "$quotas_dir/ms" "exist" 600
152 ensure_file "$quotas_dir/bytes" "exist" 600
153 ensure_file "$quotas_dir/reset_interval_ms" "exist" 600
154 test_weights "$quotas_dir/weights"
155}
156
157test_access_pattern()
158{
159 access_pattern_dir=$1
160 ensure_dir "$access_pattern_dir" "exist"
161 test_range "$access_pattern_dir/age"
162 test_range "$access_pattern_dir/nr_accesses"
163 test_range "$access_pattern_dir/sz"
164}
165
166test_scheme()
167{
168 scheme_dir=$1
169 ensure_dir "$scheme_dir" "exist"
170 ensure_file "$scheme_dir/action" "exist" "600"
171 test_access_pattern "$scheme_dir/access_pattern"
172 test_quotas "$scheme_dir/quotas"
173 test_watermarks "$scheme_dir/watermarks"
174 test_filters "$scheme_dir/filters"
175 test_stats "$scheme_dir/stats"
176 test_tried_regions "$scheme_dir/tried_regions"
177}
178
179test_schemes()
180{
181 schemes_dir=$1
182 ensure_dir "$schemes_dir" "exist"
183 ensure_file "$schemes_dir/nr_schemes" "exist" 600
184
185 ensure_write_succ "$schemes_dir/nr_schemes" "1" "valid input"
186 test_scheme "$schemes_dir/0"
187
188 ensure_write_succ "$schemes_dir/nr_schemes" "2" "valid input"
189 test_scheme "$schemes_dir/0"
190 test_scheme "$schemes_dir/1"
191
192 ensure_write_succ "$schemes_dir/nr_schemes" "0" "valid input"
193 ensure_dir "$schemes_dir/0" "not_exist"
194 ensure_dir "$schemes_dir/1" "not_exist"
195}
196
197test_region()
198{
199 region_dir=$1
200 ensure_dir "$region_dir" "exist"
201 ensure_file "$region_dir/start" "exist" 600
202 ensure_file "$region_dir/end" "exist" 600
203}
204
205test_regions()
206{
207 regions_dir=$1
208 ensure_dir "$regions_dir" "exist"
209 ensure_file "$regions_dir/nr_regions" "exist" 600
210
211 ensure_write_succ "$regions_dir/nr_regions" "1" "valid input"
212 test_region "$regions_dir/0"
213
214 ensure_write_succ "$regions_dir/nr_regions" "2" "valid input"
215 test_region "$regions_dir/0"
216 test_region "$regions_dir/1"
217
218 ensure_write_succ "$regions_dir/nr_regions" "0" "valid input"
219 ensure_dir "$regions_dir/0" "not_exist"
220 ensure_dir "$regions_dir/1" "not_exist"
221}
222
223test_target()
224{
225 target_dir=$1
226 ensure_dir "$target_dir" "exist"
227 ensure_file "$target_dir/pid_target" "exist" "600"
228 test_regions "$target_dir/regions"
229}
230
231test_targets()
232{
233 targets_dir=$1
234 ensure_dir "$targets_dir" "exist"
235 ensure_file "$targets_dir/nr_targets" "exist" 600
236
237 ensure_write_succ "$targets_dir/nr_targets" "1" "valid input"
238 test_target "$targets_dir/0"
239
240 ensure_write_succ "$targets_dir/nr_targets" "2" "valid input"
241 test_target "$targets_dir/0"
242 test_target "$targets_dir/1"
243
244 ensure_write_succ "$targets_dir/nr_targets" "0" "valid input"
245 ensure_dir "$targets_dir/0" "not_exist"
246 ensure_dir "$targets_dir/1" "not_exist"
247}
248
249test_intervals()
250{
251 intervals_dir=$1
252 ensure_dir "$intervals_dir" "exist"
253 ensure_file "$intervals_dir/aggr_us" "exist" "600"
254 ensure_file "$intervals_dir/sample_us" "exist" "600"
255 ensure_file "$intervals_dir/update_us" "exist" "600"
256}
257
258test_monitoring_attrs()
259{
260 monitoring_attrs_dir=$1
261 ensure_dir "$monitoring_attrs_dir" "exist"
262 test_intervals "$monitoring_attrs_dir/intervals"
263 test_range "$monitoring_attrs_dir/nr_regions"
264}
265
266test_context()
267{
268 context_dir=$1
269 ensure_dir "$context_dir" "exist"
270 ensure_file "$context_dir/avail_operations" "exit" 400
271 ensure_file "$context_dir/operations" "exist" 600
272 test_monitoring_attrs "$context_dir/monitoring_attrs"
273 test_targets "$context_dir/targets"
274 test_schemes "$context_dir/schemes"
275}
276
277test_contexts()
278{
279 contexts_dir=$1
280 ensure_dir "$contexts_dir" "exist"
281 ensure_file "$contexts_dir/nr_contexts" "exist" 600
282
283 ensure_write_succ "$contexts_dir/nr_contexts" "1" "valid input"
284 test_context "$contexts_dir/0"
285
286 ensure_write_fail "$contexts_dir/nr_contexts" "2" "only 0/1 are supported"
287 test_context "$contexts_dir/0"
288
289 ensure_write_succ "$contexts_dir/nr_contexts" "0" "valid input"
290 ensure_dir "$contexts_dir/0" "not_exist"
291}
292
293test_kdamond()
294{
295 kdamond_dir=$1
296 ensure_dir "$kdamond_dir" "exist"
297 ensure_file "$kdamond_dir/state" "exist" "600"
298 ensure_file "$kdamond_dir/pid" "exist" 400
299 test_contexts "$kdamond_dir/contexts"
300}
301
302test_kdamonds()
303{
304 kdamonds_dir=$1
305 ensure_dir "$kdamonds_dir" "exist"
306
307 ensure_file "$kdamonds_dir/nr_kdamonds" "exist" "600"
308
309 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "1" "valid input"
310 test_kdamond "$kdamonds_dir/0"
311
312 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "2" "valid input"
313 test_kdamond "$kdamonds_dir/0"
314 test_kdamond "$kdamonds_dir/1"
315
316 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "0" "valid input"
317 ensure_dir "$kdamonds_dir/0" "not_exist"
318 ensure_dir "$kdamonds_dir/1" "not_exist"
319}
320
321test_damon_sysfs()
322{
323 damon_sysfs=$1
324 if [ ! -d "$damon_sysfs" ]
325 then
326 echo "$damon_sysfs not found"
327 exit $ksft_skip
328 fi
329
330 test_kdamonds "$damon_sysfs/kdamonds"
331}
332
333check_dependencies()
334{
335 if [ $EUID -ne 0 ]
336 then
337 echo "Run as root"
338 exit $ksft_skip
339 fi
340}
341
342check_dependencies
343test_damon_sysfs "/sys/kernel/mm/damon/admin"