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"
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_stats()
84{
85 stats_dir=$1
86 ensure_dir "$stats_dir" "exist"
87 for f in nr_tried sz_tried nr_applied sz_applied qt_exceeds
88 do
89 ensure_file "$stats_dir/$f" "exist" "400"
90 done
91}
92
93test_watermarks()
94{
95 watermarks_dir=$1
96 ensure_dir "$watermarks_dir" "exist"
97 ensure_file "$watermarks_dir/metric" "exist" "600"
98 ensure_file "$watermarks_dir/interval_us" "exist" "600"
99 ensure_file "$watermarks_dir/high" "exist" "600"
100 ensure_file "$watermarks_dir/mid" "exist" "600"
101 ensure_file "$watermarks_dir/low" "exist" "600"
102}
103
104test_weights()
105{
106 weights_dir=$1
107 ensure_dir "$weights_dir" "exist"
108 ensure_file "$weights_dir/sz_permil" "exist" "600"
109 ensure_file "$weights_dir/nr_accesses_permil" "exist" "600"
110 ensure_file "$weights_dir/age_permil" "exist" "600"
111}
112
113test_quotas()
114{
115 quotas_dir=$1
116 ensure_dir "$quotas_dir" "exist"
117 ensure_file "$quotas_dir/ms" "exist" 600
118 ensure_file "$quotas_dir/bytes" "exist" 600
119 ensure_file "$quotas_dir/reset_interval_ms" "exist" 600
120 test_weights "$quotas_dir/weights"
121}
122
123test_access_pattern()
124{
125 access_pattern_dir=$1
126 ensure_dir "$access_pattern_dir" "exist"
127 test_range "$access_pattern_dir/age"
128 test_range "$access_pattern_dir/nr_accesses"
129 test_range "$access_pattern_dir/sz"
130}
131
132test_scheme()
133{
134 scheme_dir=$1
135 ensure_dir "$scheme_dir" "exist"
136 ensure_file "$scheme_dir/action" "exist" "600"
137 test_access_pattern "$scheme_dir/access_pattern"
138 test_quotas "$scheme_dir/quotas"
139 test_watermarks "$scheme_dir/watermarks"
140 test_stats "$scheme_dir/stats"
141}
142
143test_schemes()
144{
145 schemes_dir=$1
146 ensure_dir "$schemes_dir" "exist"
147 ensure_file "$schemes_dir/nr_schemes" "exist" 600
148
149 ensure_write_succ "$schemes_dir/nr_schemes" "1" "valid input"
150 test_scheme "$schemes_dir/0"
151
152 ensure_write_succ "$schemes_dir/nr_schemes" "2" "valid input"
153 test_scheme "$schemes_dir/0"
154 test_scheme "$schemes_dir/1"
155
156 ensure_write_succ "$schemes_dir/nr_schemes" "0" "valid input"
157 ensure_dir "$schemes_dir/0" "not_exist"
158 ensure_dir "$schemes_dir/1" "not_exist"
159}
160
161test_region()
162{
163 region_dir=$1
164 ensure_dir "$region_dir" "exist"
165 ensure_file "$region_dir/start" "exist" 600
166 ensure_file "$region_dir/end" "exist" 600
167}
168
169test_regions()
170{
171 regions_dir=$1
172 ensure_dir "$regions_dir" "exist"
173 ensure_file "$regions_dir/nr_regions" "exist" 600
174
175 ensure_write_succ "$regions_dir/nr_regions" "1" "valid input"
176 test_region "$regions_dir/0"
177
178 ensure_write_succ "$regions_dir/nr_regions" "2" "valid input"
179 test_region "$regions_dir/0"
180 test_region "$regions_dir/1"
181
182 ensure_write_succ "$regions_dir/nr_regions" "0" "valid input"
183 ensure_dir "$regions_dir/0" "not_exist"
184 ensure_dir "$regions_dir/1" "not_exist"
185}
186
187test_target()
188{
189 target_dir=$1
190 ensure_dir "$target_dir" "exist"
191 ensure_file "$target_dir/pid_target" "exist" "600"
192 test_regions "$target_dir/regions"
193}
194
195test_targets()
196{
197 targets_dir=$1
198 ensure_dir "$targets_dir" "exist"
199 ensure_file "$targets_dir/nr_targets" "exist" 600
200
201 ensure_write_succ "$targets_dir/nr_targets" "1" "valid input"
202 test_target "$targets_dir/0"
203
204 ensure_write_succ "$targets_dir/nr_targets" "2" "valid input"
205 test_target "$targets_dir/0"
206 test_target "$targets_dir/1"
207
208 ensure_write_succ "$targets_dir/nr_targets" "0" "valid input"
209 ensure_dir "$targets_dir/0" "not_exist"
210 ensure_dir "$targets_dir/1" "not_exist"
211}
212
213test_intervals()
214{
215 intervals_dir=$1
216 ensure_dir "$intervals_dir" "exist"
217 ensure_file "$intervals_dir/aggr_us" "exist" "600"
218 ensure_file "$intervals_dir/sample_us" "exist" "600"
219 ensure_file "$intervals_dir/update_us" "exist" "600"
220}
221
222test_monitoring_attrs()
223{
224 monitoring_attrs_dir=$1
225 ensure_dir "$monitoring_attrs_dir" "exist"
226 test_intervals "$monitoring_attrs_dir/intervals"
227 test_range "$monitoring_attrs_dir/nr_regions"
228}
229
230test_context()
231{
232 context_dir=$1
233 ensure_dir "$context_dir" "exist"
234 ensure_file "$context_dir/avail_operations" "exit" 400
235 ensure_file "$context_dir/operations" "exist" 600
236 test_monitoring_attrs "$context_dir/monitoring_attrs"
237 test_targets "$context_dir/targets"
238 test_schemes "$context_dir/schemes"
239}
240
241test_contexts()
242{
243 contexts_dir=$1
244 ensure_dir "$contexts_dir" "exist"
245 ensure_file "$contexts_dir/nr_contexts" "exist" 600
246
247 ensure_write_succ "$contexts_dir/nr_contexts" "1" "valid input"
248 test_context "$contexts_dir/0"
249
250 ensure_write_fail "$contexts_dir/nr_contexts" "2" "only 0/1 are supported"
251 test_context "$contexts_dir/0"
252
253 ensure_write_succ "$contexts_dir/nr_contexts" "0" "valid input"
254 ensure_dir "$contexts_dir/0" "not_exist"
255}
256
257test_kdamond()
258{
259 kdamond_dir=$1
260 ensure_dir "$kdamond_dir" "exist"
261 ensure_file "$kdamond_dir/state" "exist" "600"
262 ensure_file "$kdamond_dir/pid" "exist" 400
263 test_contexts "$kdamond_dir/contexts"
264}
265
266test_kdamonds()
267{
268 kdamonds_dir=$1
269 ensure_dir "$kdamonds_dir" "exist"
270
271 ensure_file "$kdamonds_dir/nr_kdamonds" "exist" "600"
272
273 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "1" "valid input"
274 test_kdamond "$kdamonds_dir/0"
275
276 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "2" "valid input"
277 test_kdamond "$kdamonds_dir/0"
278 test_kdamond "$kdamonds_dir/1"
279
280 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "0" "valid input"
281 ensure_dir "$kdamonds_dir/0" "not_exist"
282 ensure_dir "$kdamonds_dir/1" "not_exist"
283}
284
285test_damon_sysfs()
286{
287 damon_sysfs=$1
288 if [ ! -d "$damon_sysfs" ]
289 then
290 echo "$damon_sysfs not found"
291 exit $ksft_skip
292 fi
293
294 test_kdamonds "$damon_sysfs/kdamonds"
295}
296
297check_dependencies()
298{
299 if [ $EUID -ne 0 ]
300 then
301 echo "Run as root"
302 exit $ksft_skip
303 fi
304}
305
306check_dependencies
307test_damon_sysfs "/sys/kernel/mm/damon/admin"