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 ensure_file "$tried_regions_dir/total_bytes" "exist" "400" 88} 89 90test_stats() 91{ 92 stats_dir=$1 93 ensure_dir "$stats_dir" "exist" 94 for f in nr_tried sz_tried nr_applied sz_applied qt_exceeds 95 do 96 ensure_file "$stats_dir/$f" "exist" "400" 97 done 98} 99 100test_filter() 101{ 102 filter_dir=$1 103 ensure_file "$filter_dir/type" "exist" "600" 104 ensure_write_succ "$filter_dir/type" "anon" "valid input" 105 ensure_write_succ "$filter_dir/type" "memcg" "valid input" 106 ensure_write_succ "$filter_dir/type" "addr" "valid input" 107 ensure_write_succ "$filter_dir/type" "target" "valid input" 108 ensure_write_fail "$filter_dir/type" "foo" "invalid input" 109 ensure_file "$filter_dir/matching" "exist" "600" 110 ensure_file "$filter_dir/memcg_path" "exist" "600" 111 ensure_file "$filter_dir/addr_start" "exist" "600" 112 ensure_file "$filter_dir/addr_end" "exist" "600" 113 ensure_file "$filter_dir/damon_target_idx" "exist" "600" 114} 115 116test_filters() 117{ 118 filters_dir=$1 119 ensure_dir "$filters_dir" "exist" 120 ensure_file "$filters_dir/nr_filters" "exist" "600" 121 ensure_write_succ "$filters_dir/nr_filters" "1" "valid input" 122 test_filter "$filters_dir/0" 123 124 ensure_write_succ "$filters_dir/nr_filters" "2" "valid input" 125 test_filter "$filters_dir/0" 126 test_filter "$filters_dir/1" 127 128 ensure_write_succ "$filters_dir/nr_filters" "0" "valid input" 129 ensure_dir "$filters_dir/0" "not_exist" 130 ensure_dir "$filters_dir/1" "not_exist" 131} 132 133test_watermarks() 134{ 135 watermarks_dir=$1 136 ensure_dir "$watermarks_dir" "exist" 137 ensure_file "$watermarks_dir/metric" "exist" "600" 138 ensure_file "$watermarks_dir/interval_us" "exist" "600" 139 ensure_file "$watermarks_dir/high" "exist" "600" 140 ensure_file "$watermarks_dir/mid" "exist" "600" 141 ensure_file "$watermarks_dir/low" "exist" "600" 142} 143 144test_weights() 145{ 146 weights_dir=$1 147 ensure_dir "$weights_dir" "exist" 148 ensure_file "$weights_dir/sz_permil" "exist" "600" 149 ensure_file "$weights_dir/nr_accesses_permil" "exist" "600" 150 ensure_file "$weights_dir/age_permil" "exist" "600" 151} 152 153test_goal() 154{ 155 goal_dir=$1 156 ensure_dir "$goal_dir" "exist" 157 ensure_file "$goal_dir/target_value" "exist" "600" 158 ensure_file "$goal_dir/current_value" "exist" "600" 159} 160 161test_goals() 162{ 163 goals_dir=$1 164 ensure_dir "$goals_dir" "exist" 165 ensure_file "$goals_dir/nr_goals" "exist" "600" 166 167 ensure_write_succ "$goals_dir/nr_goals" "1" "valid input" 168 test_goal "$goals_dir/0" 169 170 ensure_write_succ "$goals_dir/nr_goals" "2" "valid input" 171 test_goal "$goals_dir/0" 172 test_goal "$goals_dir/1" 173 174 ensure_write_succ "$goals_dir/nr_goals" "0" "valid input" 175 ensure_dir "$goals_dir/0" "not_exist" 176 ensure_dir "$goals_dir/1" "not_exist" 177} 178 179test_quotas() 180{ 181 quotas_dir=$1 182 ensure_dir "$quotas_dir" "exist" 183 ensure_file "$quotas_dir/ms" "exist" 600 184 ensure_file "$quotas_dir/bytes" "exist" 600 185 ensure_file "$quotas_dir/reset_interval_ms" "exist" 600 186 test_weights "$quotas_dir/weights" 187 test_goals "$quotas_dir/goals" 188} 189 190test_access_pattern() 191{ 192 access_pattern_dir=$1 193 ensure_dir "$access_pattern_dir" "exist" 194 test_range "$access_pattern_dir/age" 195 test_range "$access_pattern_dir/nr_accesses" 196 test_range "$access_pattern_dir/sz" 197} 198 199test_scheme() 200{ 201 scheme_dir=$1 202 ensure_dir "$scheme_dir" "exist" 203 ensure_file "$scheme_dir/action" "exist" "600" 204 test_access_pattern "$scheme_dir/access_pattern" 205 ensure_file "$scheme_dir/apply_interval_us" "exist" "600" 206 test_quotas "$scheme_dir/quotas" 207 test_watermarks "$scheme_dir/watermarks" 208 test_filters "$scheme_dir/filters" 209 test_stats "$scheme_dir/stats" 210 test_tried_regions "$scheme_dir/tried_regions" 211} 212 213test_schemes() 214{ 215 schemes_dir=$1 216 ensure_dir "$schemes_dir" "exist" 217 ensure_file "$schemes_dir/nr_schemes" "exist" 600 218 219 ensure_write_succ "$schemes_dir/nr_schemes" "1" "valid input" 220 test_scheme "$schemes_dir/0" 221 222 ensure_write_succ "$schemes_dir/nr_schemes" "2" "valid input" 223 test_scheme "$schemes_dir/0" 224 test_scheme "$schemes_dir/1" 225 226 ensure_write_succ "$schemes_dir/nr_schemes" "0" "valid input" 227 ensure_dir "$schemes_dir/0" "not_exist" 228 ensure_dir "$schemes_dir/1" "not_exist" 229} 230 231test_region() 232{ 233 region_dir=$1 234 ensure_dir "$region_dir" "exist" 235 ensure_file "$region_dir/start" "exist" 600 236 ensure_file "$region_dir/end" "exist" 600 237} 238 239test_regions() 240{ 241 regions_dir=$1 242 ensure_dir "$regions_dir" "exist" 243 ensure_file "$regions_dir/nr_regions" "exist" 600 244 245 ensure_write_succ "$regions_dir/nr_regions" "1" "valid input" 246 test_region "$regions_dir/0" 247 248 ensure_write_succ "$regions_dir/nr_regions" "2" "valid input" 249 test_region "$regions_dir/0" 250 test_region "$regions_dir/1" 251 252 ensure_write_succ "$regions_dir/nr_regions" "0" "valid input" 253 ensure_dir "$regions_dir/0" "not_exist" 254 ensure_dir "$regions_dir/1" "not_exist" 255} 256 257test_target() 258{ 259 target_dir=$1 260 ensure_dir "$target_dir" "exist" 261 ensure_file "$target_dir/pid_target" "exist" "600" 262 test_regions "$target_dir/regions" 263} 264 265test_targets() 266{ 267 targets_dir=$1 268 ensure_dir "$targets_dir" "exist" 269 ensure_file "$targets_dir/nr_targets" "exist" 600 270 271 ensure_write_succ "$targets_dir/nr_targets" "1" "valid input" 272 test_target "$targets_dir/0" 273 274 ensure_write_succ "$targets_dir/nr_targets" "2" "valid input" 275 test_target "$targets_dir/0" 276 test_target "$targets_dir/1" 277 278 ensure_write_succ "$targets_dir/nr_targets" "0" "valid input" 279 ensure_dir "$targets_dir/0" "not_exist" 280 ensure_dir "$targets_dir/1" "not_exist" 281} 282 283test_intervals() 284{ 285 intervals_dir=$1 286 ensure_dir "$intervals_dir" "exist" 287 ensure_file "$intervals_dir/aggr_us" "exist" "600" 288 ensure_file "$intervals_dir/sample_us" "exist" "600" 289 ensure_file "$intervals_dir/update_us" "exist" "600" 290} 291 292test_monitoring_attrs() 293{ 294 monitoring_attrs_dir=$1 295 ensure_dir "$monitoring_attrs_dir" "exist" 296 test_intervals "$monitoring_attrs_dir/intervals" 297 test_range "$monitoring_attrs_dir/nr_regions" 298} 299 300test_context() 301{ 302 context_dir=$1 303 ensure_dir "$context_dir" "exist" 304 ensure_file "$context_dir/avail_operations" "exit" 400 305 ensure_file "$context_dir/operations" "exist" 600 306 test_monitoring_attrs "$context_dir/monitoring_attrs" 307 test_targets "$context_dir/targets" 308 test_schemes "$context_dir/schemes" 309} 310 311test_contexts() 312{ 313 contexts_dir=$1 314 ensure_dir "$contexts_dir" "exist" 315 ensure_file "$contexts_dir/nr_contexts" "exist" 600 316 317 ensure_write_succ "$contexts_dir/nr_contexts" "1" "valid input" 318 test_context "$contexts_dir/0" 319 320 ensure_write_fail "$contexts_dir/nr_contexts" "2" "only 0/1 are supported" 321 test_context "$contexts_dir/0" 322 323 ensure_write_succ "$contexts_dir/nr_contexts" "0" "valid input" 324 ensure_dir "$contexts_dir/0" "not_exist" 325} 326 327test_kdamond() 328{ 329 kdamond_dir=$1 330 ensure_dir "$kdamond_dir" "exist" 331 ensure_file "$kdamond_dir/state" "exist" "600" 332 ensure_file "$kdamond_dir/pid" "exist" 400 333 test_contexts "$kdamond_dir/contexts" 334} 335 336test_kdamonds() 337{ 338 kdamonds_dir=$1 339 ensure_dir "$kdamonds_dir" "exist" 340 341 ensure_file "$kdamonds_dir/nr_kdamonds" "exist" "600" 342 343 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "1" "valid input" 344 test_kdamond "$kdamonds_dir/0" 345 346 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "2" "valid input" 347 test_kdamond "$kdamonds_dir/0" 348 test_kdamond "$kdamonds_dir/1" 349 350 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "0" "valid input" 351 ensure_dir "$kdamonds_dir/0" "not_exist" 352 ensure_dir "$kdamonds_dir/1" "not_exist" 353} 354 355test_damon_sysfs() 356{ 357 damon_sysfs=$1 358 if [ ! -d "$damon_sysfs" ] 359 then 360 echo "$damon_sysfs not found" 361 exit $ksft_skip 362 fi 363 364 test_kdamonds "$damon_sysfs/kdamonds" 365} 366 367check_dependencies() 368{ 369 if [ $EUID -ne 0 ] 370 then 371 echo "Run as root" 372 exit $ksft_skip 373 fi 374} 375 376check_dependencies 377test_damon_sysfs "/sys/kernel/mm/damon/admin" 378