Messages in this thread | | | Date | Thu, 3 Feb 2022 22:06:15 +0800 | From | kernel test robot <> | Subject | [hying-caritas:mt-20210701 33/56] mm/vmscan.c:2261:46: sparse: sparse: mixing different enum types: |
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tree: https://github.com/hying-caritas/linux.git mt-20210701 head: 491dd52981b1acfc3638b3780d85ee68113fd51b commit: 19f3e3d17bb9b4096c84f6f5e7842dbfd3c1132c [33/56] mm: make some global page reclaim related vmstat events per-node config: m68k-randconfig-s032-20220202 (https://download.01.org/0day-ci/archive/20220203/202202031841.nnBVqqFb-lkp@intel.com/config) compiler: m68k-linux-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/hying-caritas/linux/commit/19f3e3d17bb9b4096c84f6f5e7842dbfd3c1132c git remote add hying-caritas https://github.com/hying-caritas/linux.git git fetch --no-tags hying-caritas mt-20210701 git checkout 19f3e3d17bb9b4096c84f6f5e7842dbfd3c1132c # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>) >> mm/vmscan.c:2261:46: sparse: sparse: mixing different enum types: >> mm/vmscan.c:2261:46: sparse: unsigned int enum vm_event_item >> mm/vmscan.c:2261:46: sparse: unsigned int enum node_stat_item mm/vmscan.c:2278:46: sparse: sparse: mixing different enum types: mm/vmscan.c:2278:46: sparse: unsigned int enum vm_event_item mm/vmscan.c:2278:46: sparse: unsigned int enum node_stat_item mm/vmscan.c: note: in included file: include/linux/mm_inline.h:66:38: sparse: sparse: context imbalance in 'isolate_lru_page' - unexpected unlock mm/vmscan.c: note: in included file (through include/linux/swap.h): include/linux/memcontrol.h:1527:39: sparse: sparse: context imbalance in 'check_move_unevictable_pages' - unexpected unlock
vim +2261 mm/vmscan.c
2219 2220 /* 2221 * shrink_inactive_list() is a helper for shrink_node(). It returns the number 2222 * of reclaimed pages 2223 */ 2224 static noinline_for_stack unsigned long 2225 shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec, 2226 struct scan_control *sc, enum lru_list lru) 2227 { 2228 LIST_HEAD(page_list); 2229 unsigned long nr_scanned; 2230 unsigned int nr_reclaimed = 0; 2231 unsigned long nr_taken; 2232 struct reclaim_stat stat; 2233 bool file = is_file_lru(lru); 2234 enum vm_event_item item; 2235 struct pglist_data *pgdat = lruvec_pgdat(lruvec); 2236 bool stalled = false; 2237 2238 while (unlikely(too_many_isolated(pgdat, file, sc))) { 2239 if (stalled) 2240 return 0; 2241 2242 /* wait a bit for the reclaimer. */ 2243 msleep(100); 2244 stalled = true; 2245 2246 /* We are about to die and free our memory. Return now. */ 2247 if (fatal_signal_pending(current)) 2248 return SWAP_CLUSTER_MAX; 2249 } 2250 2251 lru_add_drain(); 2252 2253 spin_lock_irq(&lruvec->lru_lock); 2254 2255 nr_taken = isolate_lru_pages(nr_to_scan, lruvec, &page_list, 2256 &nr_scanned, sc, lru); 2257 2258 __mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, nr_taken); 2259 item = current_is_kswapd() ? PGSCAN_KSWAPD : PGSCAN_DIRECT; 2260 if (!cgroup_reclaim(sc)) > 2261 __mod_node_page_state(pgdat, item, nr_scanned); 2262 __mod_memcg_state(lruvec_memcg(lruvec), item, nr_scanned); 2263 __count_vm_events(PGSCAN_ANON + file, nr_scanned); 2264 2265 spin_unlock_irq(&lruvec->lru_lock); 2266 2267 if (nr_taken == 0) 2268 return 0; 2269 2270 nr_reclaimed = shrink_page_list(&page_list, pgdat, sc, &stat, false); 2271 2272 spin_lock_irq(&lruvec->lru_lock); 2273 move_pages_to_lru(lruvec, &page_list); 2274 2275 __mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, -nr_taken); 2276 item = current_is_kswapd() ? PGSTEAL_KSWAPD : PGSTEAL_DIRECT; 2277 if (!cgroup_reclaim(sc)) 2278 __mod_node_page_state(pgdat, item, nr_reclaimed); 2279 __mod_memcg_state(lruvec_memcg(lruvec), item, nr_reclaimed); 2280 __count_vm_events(PGSTEAL_ANON + file, nr_reclaimed); 2281 spin_unlock_irq(&lruvec->lru_lock); 2282 2283 lru_note_cost(lruvec, file, stat.nr_pageout); 2284 mem_cgroup_uncharge_list(&page_list); 2285 free_unref_page_list(&page_list); 2286 2287 /* 2288 * If dirty pages are scanned that are not queued for IO, it 2289 * implies that flushers are not doing their job. This can 2290 * happen when memory pressure pushes dirty pages to the end of 2291 * the LRU before the dirty limits are breached and the dirty 2292 * data has expired. It can also happen when the proportion of 2293 * dirty pages grows not through writes but through memory 2294 * pressure reclaiming all the clean cache. And in some cases, 2295 * the flushers simply cannot keep up with the allocation 2296 * rate. Nudge the flusher threads in case they are asleep. 2297 */ 2298 if (stat.nr_unqueued_dirty == nr_taken) 2299 wakeup_flusher_threads(WB_REASON_VMSCAN); 2300 2301 sc->nr.dirty += stat.nr_dirty; 2302 sc->nr.congested += stat.nr_congested; 2303 sc->nr.unqueued_dirty += stat.nr_unqueued_dirty; 2304 sc->nr.writeback += stat.nr_writeback; 2305 sc->nr.immediate += stat.nr_immediate; 2306 sc->nr.taken += nr_taken; 2307 if (file) 2308 sc->nr.file_taken += nr_taken; 2309 2310 trace_mm_vmscan_lru_shrink_inactive(pgdat->node_id, 2311 nr_scanned, nr_reclaimed, &stat, sc->priority, file); 2312 return nr_reclaimed; 2313 } 2314
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