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_quotas() 154{ 155 quotas_dir=$1 156 ensure_dir "$quotas_dir" "exist" 157 ensure_file "$quotas_dir/ms" "exist" 600 158 ensure_file "$quotas_dir/bytes" "exist" 600 159 ensure_file "$quotas_dir/reset_interval_ms" "exist" 600 160 test_weights "$quotas_dir/weights" 161} 162 163test_access_pattern() 164{ 165 access_pattern_dir=$1 166 ensure_dir "$access_pattern_dir" "exist" 167 test_range "$access_pattern_dir/age" 168 test_range "$access_pattern_dir/nr_accesses" 169 test_range "$access_pattern_dir/sz" 170} 171 172test_scheme() 173{ 174 scheme_dir=$1 175 ensure_dir "$scheme_dir" "exist" 176 ensure_file "$scheme_dir/action" "exist" "600" 177 test_access_pattern "$scheme_dir/access_pattern" 178 test_quotas "$scheme_dir/quotas" 179 test_watermarks "$scheme_dir/watermarks" 180 test_filters "$scheme_dir/filters" 181 test_stats "$scheme_dir/stats" 182 test_tried_regions "$scheme_dir/tried_regions" 183} 184 185test_schemes() 186{ 187 schemes_dir=$1 188 ensure_dir "$schemes_dir" "exist" 189 ensure_file "$schemes_dir/nr_schemes" "exist" 600 190 191 ensure_write_succ "$schemes_dir/nr_schemes" "1" "valid input" 192 test_scheme "$schemes_dir/0" 193 194 ensure_write_succ "$schemes_dir/nr_schemes" "2" "valid input" 195 test_scheme "$schemes_dir/0" 196 test_scheme "$schemes_dir/1" 197 198 ensure_write_succ "$schemes_dir/nr_schemes" "0" "valid input" 199 ensure_dir "$schemes_dir/0" "not_exist" 200 ensure_dir "$schemes_dir/1" "not_exist" 201} 202 203test_region() 204{ 205 region_dir=$1 206 ensure_dir "$region_dir" "exist" 207 ensure_file "$region_dir/start" "exist" 600 208 ensure_file "$region_dir/end" "exist" 600 209} 210 211test_regions() 212{ 213 regions_dir=$1 214 ensure_dir "$regions_dir" "exist" 215 ensure_file "$regions_dir/nr_regions" "exist" 600 216 217 ensure_write_succ "$regions_dir/nr_regions" "1" "valid input" 218 test_region "$regions_dir/0" 219 220 ensure_write_succ "$regions_dir/nr_regions" "2" "valid input" 221 test_region "$regions_dir/0" 222 test_region "$regions_dir/1" 223 224 ensure_write_succ "$regions_dir/nr_regions" "0" "valid input" 225 ensure_dir "$regions_dir/0" "not_exist" 226 ensure_dir "$regions_dir/1" "not_exist" 227} 228 229test_target() 230{ 231 target_dir=$1 232 ensure_dir "$target_dir" "exist" 233 ensure_file "$target_dir/pid_target" "exist" "600" 234 test_regions "$target_dir/regions" 235} 236 237test_targets() 238{ 239 targets_dir=$1 240 ensure_dir "$targets_dir" "exist" 241 ensure_file "$targets_dir/nr_targets" "exist" 600 242 243 ensure_write_succ "$targets_dir/nr_targets" "1" "valid input" 244 test_target "$targets_dir/0" 245 246 ensure_write_succ "$targets_dir/nr_targets" "2" "valid input" 247 test_target "$targets_dir/0" 248 test_target "$targets_dir/1" 249 250 ensure_write_succ "$targets_dir/nr_targets" "0" "valid input" 251 ensure_dir "$targets_dir/0" "not_exist" 252 ensure_dir "$targets_dir/1" "not_exist" 253} 254 255test_intervals() 256{ 257 intervals_dir=$1 258 ensure_dir "$intervals_dir" "exist" 259 ensure_file "$intervals_dir/aggr_us" "exist" "600" 260 ensure_file "$intervals_dir/sample_us" "exist" "600" 261 ensure_file "$intervals_dir/update_us" "exist" "600" 262} 263 264test_monitoring_attrs() 265{ 266 monitoring_attrs_dir=$1 267 ensure_dir "$monitoring_attrs_dir" "exist" 268 test_intervals "$monitoring_attrs_dir/intervals" 269 test_range "$monitoring_attrs_dir/nr_regions" 270} 271 272test_context() 273{ 274 context_dir=$1 275 ensure_dir "$context_dir" "exist" 276 ensure_file "$context_dir/avail_operations" "exit" 400 277 ensure_file "$context_dir/operations" "exist" 600 278 test_monitoring_attrs "$context_dir/monitoring_attrs" 279 test_targets "$context_dir/targets" 280 test_schemes "$context_dir/schemes" 281} 282 283test_contexts() 284{ 285 contexts_dir=$1 286 ensure_dir "$contexts_dir" "exist" 287 ensure_file "$contexts_dir/nr_contexts" "exist" 600 288 289 ensure_write_succ "$contexts_dir/nr_contexts" "1" "valid input" 290 test_context "$contexts_dir/0" 291 292 ensure_write_fail "$contexts_dir/nr_contexts" "2" "only 0/1 are supported" 293 test_context "$contexts_dir/0" 294 295 ensure_write_succ "$contexts_dir/nr_contexts" "0" "valid input" 296 ensure_dir "$contexts_dir/0" "not_exist" 297} 298 299test_kdamond() 300{ 301 kdamond_dir=$1 302 ensure_dir "$kdamond_dir" "exist" 303 ensure_file "$kdamond_dir/state" "exist" "600" 304 ensure_file "$kdamond_dir/pid" "exist" 400 305 test_contexts "$kdamond_dir/contexts" 306} 307 308test_kdamonds() 309{ 310 kdamonds_dir=$1 311 ensure_dir "$kdamonds_dir" "exist" 312 313 ensure_file "$kdamonds_dir/nr_kdamonds" "exist" "600" 314 315 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "1" "valid input" 316 test_kdamond "$kdamonds_dir/0" 317 318 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "2" "valid input" 319 test_kdamond "$kdamonds_dir/0" 320 test_kdamond "$kdamonds_dir/1" 321 322 ensure_write_succ "$kdamonds_dir/nr_kdamonds" "0" "valid input" 323 ensure_dir "$kdamonds_dir/0" "not_exist" 324 ensure_dir "$kdamonds_dir/1" "not_exist" 325} 326 327test_damon_sysfs() 328{ 329 damon_sysfs=$1 330 if [ ! -d "$damon_sysfs" ] 331 then 332 echo "$damon_sysfs not found" 333 exit $ksft_skip 334 fi 335 336 test_kdamonds "$damon_sysfs/kdamonds" 337} 338 339check_dependencies() 340{ 341 if [ $EUID -ne 0 ] 342 then 343 echo "Run as root" 344 exit $ksft_skip 345 fi 346} 347 348check_dependencies 349test_damon_sysfs "/sys/kernel/mm/damon/admin" 350