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Howlett" , Suren Baghdasaryan , Michal Hocko , Johannes Weiner , Zi Yan , Axel Rasmussen , Yuanchu Xie , Roman Gushchin Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, peterz@infradead.org, bp@alien8.de, dave.hansen@linux.intel.com, mingo@redhat.com, tglx@linutronix.de, akpm@linux-foundation.org, david@redhat.com, derkling@google.com, junaids@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, reijiw@google.com, rientjes@google.com, rppt@kernel.org, vbabka@suse.cz, x86@kernel.org, yosry.ahmed@linux.dev Subject: Re: [PATCH 11/21] mm: introduce freetype_t Message-ID: <202509252109.X3oqS16b-lkp@intel.com> References: <20250924-b4-asi-page-alloc-v1-11-2d861768041f@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250924-b4-asi-page-alloc-v1-11-2d861768041f@google.com> X-Stat-Signature: 53t77q4otr6zyh1m9imemn1hde5ozzgy X-Rspamd-Queue-Id: 4EB2440005 X-Rspam-User: X-Rspamd-Server: rspam03 X-HE-Tag: 1758806152-986222 X-HE-Meta: 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 ARW4oMsn hTkxOZkk8REzz1AneEQ/FzoCK+gtsNk3GgYIcy/OzpPAM6Bm1fIyxj/Oo5BLzEytLfnaRYQJY75fXqF3L9LAFZGZ1AMqtPh6tFZGXBhshazSgGX1IhhKN1RDwVTfbS1O+b5xexr4y1tsMyBlv3vUZaYYVE28mrAQA0P8TuOWXCkZV2A/DFl+A7hO5ulEuxZ3Jp9eeMQlzOq89hbHUnU36SutwyghnJv9efyTUOtA4m5cxyPihIu34xt/k94+/dUiFnR0mPAKGA9lnhoBo5mZgPULzSdnc/ZNJA12NQ2sV5VyzP2vGRQqwFP2UZ7TE7PeZx+YqsL0Z/NIyuqoTAjkz7zlys7gstwPML0YYPQ+TvfuVcRkTcX55Ypd0oulsAF/l9narAQ/h6hM0Y57iCN6dbkXBFw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Brendan, kernel test robot noticed the following build errors: [auto build test ERROR on bf2602a3cb2381fb1a04bf1c39a290518d2538d1] url: https://github.com/intel-lab-lkp/linux/commits/Brendan-Jackman/x86-mm-asi-Add-CONFIG_MITIGATION_ADDRESS_SPACE_ISOLATION/20250924-230633 base: bf2602a3cb2381fb1a04bf1c39a290518d2538d1 patch link: https://lore.kernel.org/r/20250924-b4-asi-page-alloc-v1-11-2d861768041f%40google.com patch subject: [PATCH 11/21] mm: introduce freetype_t config: i386-buildonly-randconfig-001-20250925 (https://download.01.org/0day-ci/archive/20250925/202509252109.X3oqS16b-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250925/202509252109.X3oqS16b-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202509252109.X3oqS16b-lkp@intel.com/ All errors (new ones prefixed by >>): >> mm/compaction.c:2319:7: error: use of undeclared identifier 'migratetype'; did you mean 'migrate_pfn'? 2319 | if (migratetype == MIGRATE_MOVABLE && | ^~~~~~~~~~~ | migrate_pfn include/linux/migrate.h:137:29: note: 'migrate_pfn' declared here 137 | static inline unsigned long migrate_pfn(unsigned long pfn) | ^ 1 error generated. vim +2319 mm/compaction.c facdaa917c4d5a3 Nitin Gupta 2020-08-11 2234 40cacbcb3240362 Mel Gorman 2019-03-05 2235 static enum compact_result __compact_finished(struct compact_control *cc) 748446bb6b5a939 Mel Gorman 2010-05-24 2236 { 8fb74b9fb2b182d Mel Gorman 2013-01-11 2237 unsigned int order; fb432f7fe43d9fb Brendan Jackman 2025-09-24 2238 const freetype_t freetype = cc->freetype; cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2239 int ret; 748446bb6b5a939 Mel Gorman 2010-05-24 2240 753341a4b85ff33 Mel Gorman 2012-10-08 2241 /* Compaction run completes if the migrate and free scanner meet */ f2849aa09d4fbc4 Vlastimil Babka 2015-09-08 2242 if (compact_scanners_met(cc)) { 55b7c4c99f6a448 Vlastimil Babka 2014-01-21 2243 /* Let the next compaction start anew. */ 40cacbcb3240362 Mel Gorman 2019-03-05 2244 reset_cached_positions(cc->zone); 55b7c4c99f6a448 Vlastimil Babka 2014-01-21 2245 62997027ca5b3d4 Mel Gorman 2012-10-08 2246 /* 62997027ca5b3d4 Mel Gorman 2012-10-08 2247 * Mark that the PG_migrate_skip information should be cleared accf62422b3a67f Vlastimil Babka 2016-03-17 2248 * by kswapd when it goes to sleep. kcompactd does not set the 62997027ca5b3d4 Mel Gorman 2012-10-08 2249 * flag itself as the decision to be clear should be directly 62997027ca5b3d4 Mel Gorman 2012-10-08 2250 * based on an allocation request. 62997027ca5b3d4 Mel Gorman 2012-10-08 2251 */ accf62422b3a67f Vlastimil Babka 2016-03-17 2252 if (cc->direct_compaction) 40cacbcb3240362 Mel Gorman 2019-03-05 2253 cc->zone->compact_blockskip_flush = true; 62997027ca5b3d4 Mel Gorman 2012-10-08 2254 c8f7de0bfae36e8 Michal Hocko 2016-05-20 2255 if (cc->whole_zone) 748446bb6b5a939 Mel Gorman 2010-05-24 2256 return COMPACT_COMPLETE; c8f7de0bfae36e8 Michal Hocko 2016-05-20 2257 else c8f7de0bfae36e8 Michal Hocko 2016-05-20 2258 return COMPACT_PARTIAL_SKIPPED; bb13ffeb9f6bfeb Mel Gorman 2012-10-08 2259 } 748446bb6b5a939 Mel Gorman 2010-05-24 2260 facdaa917c4d5a3 Nitin Gupta 2020-08-11 2261 if (cc->proactive_compaction) { facdaa917c4d5a3 Nitin Gupta 2020-08-11 2262 int score, wmark_low; facdaa917c4d5a3 Nitin Gupta 2020-08-11 2263 pg_data_t *pgdat; facdaa917c4d5a3 Nitin Gupta 2020-08-11 2264 facdaa917c4d5a3 Nitin Gupta 2020-08-11 2265 pgdat = cc->zone->zone_pgdat; facdaa917c4d5a3 Nitin Gupta 2020-08-11 2266 if (kswapd_is_running(pgdat)) facdaa917c4d5a3 Nitin Gupta 2020-08-11 2267 return COMPACT_PARTIAL_SKIPPED; facdaa917c4d5a3 Nitin Gupta 2020-08-11 2268 facdaa917c4d5a3 Nitin Gupta 2020-08-11 2269 score = fragmentation_score_zone(cc->zone); 8fbb92bd10be26d Kemeng Shi 2023-08-09 2270 wmark_low = fragmentation_score_wmark(true); facdaa917c4d5a3 Nitin Gupta 2020-08-11 2271 facdaa917c4d5a3 Nitin Gupta 2020-08-11 2272 if (score > wmark_low) facdaa917c4d5a3 Nitin Gupta 2020-08-11 2273 ret = COMPACT_CONTINUE; facdaa917c4d5a3 Nitin Gupta 2020-08-11 2274 else facdaa917c4d5a3 Nitin Gupta 2020-08-11 2275 ret = COMPACT_SUCCESS; facdaa917c4d5a3 Nitin Gupta 2020-08-11 2276 facdaa917c4d5a3 Nitin Gupta 2020-08-11 2277 goto out; facdaa917c4d5a3 Nitin Gupta 2020-08-11 2278 } facdaa917c4d5a3 Nitin Gupta 2020-08-11 2279 21c527a3cba07f9 Yaowei Bai 2015-11-05 2280 if (is_via_compact_memory(cc->order)) 56de7263fcf3eb1 Mel Gorman 2010-05-24 2281 return COMPACT_CONTINUE; 56de7263fcf3eb1 Mel Gorman 2010-05-24 2282 baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2283 /* efe771c7603bc52 Mel Gorman 2019-03-05 2284 * Always finish scanning a pageblock to reduce the possibility of efe771c7603bc52 Mel Gorman 2019-03-05 2285 * fallbacks in the future. This is particularly important when efe771c7603bc52 Mel Gorman 2019-03-05 2286 * migration source is unmovable/reclaimable but it's not worth efe771c7603bc52 Mel Gorman 2019-03-05 2287 * special casing. baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2288 */ ee0913c47196102 Kefeng Wang 2022-09-07 2289 if (!pageblock_aligned(cc->migrate_pfn)) baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2290 return COMPACT_CONTINUE; baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2291 a211c6550efcc87 Johannes Weiner 2025-03-13 2292 /* a211c6550efcc87 Johannes Weiner 2025-03-13 2293 * When defrag_mode is enabled, make kcompactd target a211c6550efcc87 Johannes Weiner 2025-03-13 2294 * watermarks in whole pageblocks. Because they can be stolen a211c6550efcc87 Johannes Weiner 2025-03-13 2295 * without polluting, no further fallback checks are needed. a211c6550efcc87 Johannes Weiner 2025-03-13 2296 */ a211c6550efcc87 Johannes Weiner 2025-03-13 2297 if (defrag_mode && !cc->direct_compaction) { a211c6550efcc87 Johannes Weiner 2025-03-13 2298 if (__zone_watermark_ok(cc->zone, cc->order, a211c6550efcc87 Johannes Weiner 2025-03-13 2299 high_wmark_pages(cc->zone), a211c6550efcc87 Johannes Weiner 2025-03-13 2300 cc->highest_zoneidx, cc->alloc_flags, a211c6550efcc87 Johannes Weiner 2025-03-13 2301 zone_page_state(cc->zone, a211c6550efcc87 Johannes Weiner 2025-03-13 2302 NR_FREE_PAGES_BLOCKS))) a211c6550efcc87 Johannes Weiner 2025-03-13 2303 return COMPACT_SUCCESS; a211c6550efcc87 Johannes Weiner 2025-03-13 2304 a211c6550efcc87 Johannes Weiner 2025-03-13 2305 return COMPACT_CONTINUE; a211c6550efcc87 Johannes Weiner 2025-03-13 2306 } a211c6550efcc87 Johannes Weiner 2025-03-13 2307 56de7263fcf3eb1 Mel Gorman 2010-05-24 2308 /* Direct compactor: Is a suitable page free? */ cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2309 ret = COMPACT_NO_SUITABLE_PAGE; fd37721803c6e73 Kirill A. Shutemov 2023-12-28 2310 for (order = cc->order; order < NR_PAGE_ORDERS; order++) { 40cacbcb3240362 Mel Gorman 2019-03-05 2311 struct free_area *area = &cc->zone->free_area[order]; 8fb74b9fb2b182d Mel Gorman 2013-01-11 2312 fb432f7fe43d9fb Brendan Jackman 2025-09-24 2313 /* Job done if page is free of the right freetype */ fb432f7fe43d9fb Brendan Jackman 2025-09-24 2314 if (!free_area_empty(area, freetype)) cf378319d335663 Vlastimil Babka 2016-10-07 2315 return COMPACT_SUCCESS; 56de7263fcf3eb1 Mel Gorman 2010-05-24 2316 2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2317 #ifdef CONFIG_CMA 2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2318 /* MIGRATE_MOVABLE can fallback on MIGRATE_CMA */ 2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 @2319 if (migratetype == MIGRATE_MOVABLE && fb432f7fe43d9fb Brendan Jackman 2025-09-24 2320 !free_areas_empty(area, MIGRATE_CMA)) cf378319d335663 Vlastimil Babka 2016-10-07 2321 return COMPACT_SUCCESS; 2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2322 #endif 2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2323 /* 2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2324 * Job done if allocation would steal freepages from fb432f7fe43d9fb Brendan Jackman 2025-09-24 2325 * other freetype buddy lists. 2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2326 */ fb432f7fe43d9fb Brendan Jackman 2025-09-24 2327 if (find_suitable_fallback(area, order, freetype, true) >= 0) baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2328 /* fb432f7fe43d9fb Brendan Jackman 2025-09-24 2329 * Movable pages are OK in any pageblock of the right fb432f7fe43d9fb Brendan Jackman 2025-09-24 2330 * sensitivity. If we are * stealing for a fb432f7fe43d9fb Brendan Jackman 2025-09-24 2331 * non-movable allocation, make sure fa599c44987df43 Miaohe Lin 2022-04-28 2332 * we finish compacting the current pageblock first fa599c44987df43 Miaohe Lin 2022-04-28 2333 * (which is assured by the above migrate_pfn align fa599c44987df43 Miaohe Lin 2022-04-28 2334 * check) so it is as free as possible and we won't fa599c44987df43 Miaohe Lin 2022-04-28 2335 * have to steal another one soon. baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2336 */ baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2337 return COMPACT_SUCCESS; baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2338 } baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2339 facdaa917c4d5a3 Nitin Gupta 2020-08-11 2340 out: cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2341 if (cc->contended || fatal_signal_pending(current)) cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2342 ret = COMPACT_CONTENDED; cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2343 cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2344 return ret; 837d026d560c5ef Joonsoo Kim 2015-02-11 2345 } 837d026d560c5ef Joonsoo Kim 2015-02-11 2346 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki