Lines Matching full:cc
222 static inline bool isolation_suitable(struct compact_control *cc, in isolation_suitable() argument
225 if (cc->ignore_skip_hint) in isolation_suitable()
405 static bool test_and_set_skip(struct compact_control *cc, struct page *page, in test_and_set_skip() argument
411 if (cc->ignore_skip_hint) in test_and_set_skip()
418 if (!skip && !cc->no_set_skip_hint) in test_and_set_skip()
424 static void update_cached_migrate(struct compact_control *cc, unsigned long pfn) in update_cached_migrate() argument
426 struct zone *zone = cc->zone; in update_cached_migrate()
431 if (cc->no_set_skip_hint) in update_cached_migrate()
436 if (cc->mode != MIGRATE_ASYNC && in update_cached_migrate()
445 static void update_pageblock_skip(struct compact_control *cc, in update_pageblock_skip() argument
448 struct zone *zone = cc->zone; in update_pageblock_skip()
450 if (cc->no_set_skip_hint) in update_pageblock_skip()
463 static inline bool isolation_suitable(struct compact_control *cc, in isolation_suitable() argument
474 static inline void update_pageblock_skip(struct compact_control *cc, in update_pageblock_skip() argument
479 static void update_cached_migrate(struct compact_control *cc, unsigned long pfn) in update_cached_migrate() argument
483 static bool test_and_set_skip(struct compact_control *cc, struct page *page, in test_and_set_skip() argument
500 struct compact_control *cc) in compact_lock_irqsave() argument
504 if (cc->mode == MIGRATE_ASYNC && !cc->contended) { in compact_lock_irqsave()
508 cc->contended = true; in compact_lock_irqsave()
531 unsigned long flags, bool *locked, struct compact_control *cc) in compact_unlock_should_abort() argument
539 cc->contended = true; in compact_unlock_should_abort()
553 static unsigned long isolate_freepages_block(struct compact_control *cc, in isolate_freepages_block() argument
584 && compact_unlock_should_abort(&cc->zone->lock, flags, in isolate_freepages_block()
585 &locked, cc)) in isolate_freepages_block()
619 locked = compact_lock_irqsave(&cc->zone->lock, in isolate_freepages_block()
620 &flags, cc); in isolate_freepages_block()
635 cc->nr_freepages += isolated; in isolate_freepages_block()
638 if (!strict && cc->nr_migratepages <= cc->nr_freepages) { in isolate_freepages_block()
656 spin_unlock_irqrestore(&cc->zone->lock, flags); in isolate_freepages_block()
679 cc->total_free_scanned += nr_scanned; in isolate_freepages_block()
687 * @cc: Compaction control structure.
700 isolate_freepages_range(struct compact_control *cc, in isolate_freepages_range() argument
708 if (block_start_pfn < cc->zone->zone_start_pfn) in isolate_freepages_range()
709 block_start_pfn = cc->zone->zone_start_pfn; in isolate_freepages_range()
732 block_end_pfn, cc->zone)) in isolate_freepages_range()
735 isolated = isolate_freepages_block(cc, &isolate_start_pfn, in isolate_freepages_range()
784 * @cc: Compaction control structure.
795 * The pages are isolated on cc->migratepages list (not required to be empty),
796 * and cc->nr_migratepages is updated accordingly. The cc->migrate_pfn field
800 isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, in isolate_migratepages_block() argument
803 pg_data_t *pgdat = cc->zone->zone_pgdat; in isolate_migratepages_block()
821 if (cc->nr_migratepages) in isolate_migratepages_block()
825 if (cc->mode == MIGRATE_ASYNC) in isolate_migratepages_block()
836 if (cc->direct_compaction && (cc->mode == MIGRATE_ASYNC)) { in isolate_migratepages_block()
838 next_skip_pfn = block_end_pfn(low_pfn, cc->order); in isolate_migratepages_block()
863 next_skip_pfn = block_end_pfn(low_pfn, cc->order); in isolate_migratepages_block()
873 flags, &locked, cc)) { in isolate_migratepages_block()
891 if (!cc->ignore_skip_hint && get_pageblock_skip(page)) { in isolate_migratepages_block()
925 if (PageCompound(page) && !cc->alloc_contig) { in isolate_migratepages_block()
971 if (!(cc->gfp_mask & __GFP_FS) && page_mapping(page)) in isolate_migratepages_block()
977 &flags, cc); in isolate_migratepages_block()
982 if (test_and_set_skip(cc, page, low_pfn)) in isolate_migratepages_block()
995 if (unlikely(PageCompound(page) && !cc->alloc_contig)) { in isolate_migratepages_block()
1018 list_add(&page->lru, &cc->migratepages); in isolate_migratepages_block()
1019 cc->nr_migratepages += compound_nr(page); in isolate_migratepages_block()
1028 if (cc->nr_migratepages >= COMPACT_CLUSTER_MAX && in isolate_migratepages_block()
1029 !cc->rescan && !cc->contended) { in isolate_migratepages_block()
1041 * instead of migrating, as we cannot form the cc->order buddy in isolate_migratepages_block()
1049 putback_movable_pages(&cc->migratepages); in isolate_migratepages_block()
1050 cc->nr_migratepages = 0; in isolate_migratepages_block()
1060 next_skip_pfn += 1UL << cc->order; in isolate_migratepages_block()
1083 if (low_pfn == end_pfn && (!nr_isolated || cc->rescan)) { in isolate_migratepages_block()
1086 update_cached_migrate(cc, low_pfn); in isolate_migratepages_block()
1093 cc->total_migrate_scanned += nr_scanned; in isolate_migratepages_block()
1102 * @cc: Compaction control structure.
1111 isolate_migratepages_range(struct compact_control *cc, unsigned long start_pfn, in isolate_migratepages_range() argument
1119 if (block_start_pfn < cc->zone->zone_start_pfn) in isolate_migratepages_range()
1120 block_start_pfn = cc->zone->zone_start_pfn; in isolate_migratepages_range()
1130 block_end_pfn, cc->zone)) in isolate_migratepages_range()
1133 pfn = isolate_migratepages_block(cc, pfn, block_end_pfn, in isolate_migratepages_range()
1139 if (cc->nr_migratepages >= COMPACT_CLUSTER_MAX) in isolate_migratepages_range()
1149 static bool suitable_migration_source(struct compact_control *cc, in suitable_migration_source() argument
1157 if ((cc->mode != MIGRATE_ASYNC) || !cc->direct_compaction) in suitable_migration_source()
1162 if (cc->migratetype == MIGRATE_MOVABLE) in suitable_migration_source()
1165 return block_mt == cc->migratetype; in suitable_migration_source()
1169 static bool suitable_migration_target(struct compact_control *cc, in suitable_migration_target() argument
1183 if (cc->ignore_block_suitable) in suitable_migration_target()
1195 freelist_scan_limit(struct compact_control *cc) in freelist_scan_limit() argument
1199 return (COMPACT_CLUSTER_MAX >> min(shift, cc->fast_search_fail)) + 1; in freelist_scan_limit()
1206 static inline bool compact_scanners_met(struct compact_control *cc) in compact_scanners_met() argument
1208 return (cc->free_pfn >> pageblock_order) in compact_scanners_met()
1209 <= (cc->migrate_pfn >> pageblock_order); in compact_scanners_met()
1248 fast_isolate_around(struct compact_control *cc, unsigned long pfn, unsigned long nr_isolated) in fast_isolate_around() argument
1254 if (cc->nr_freepages >= cc->nr_migratepages) in fast_isolate_around()
1258 if (cc->direct_compaction && cc->mode == MIGRATE_ASYNC) in fast_isolate_around()
1263 end_pfn = min(pageblock_end_pfn(pfn), zone_end_pfn(cc->zone)) - 1; in fast_isolate_around()
1267 isolate_freepages_block(cc, &start_pfn, pfn, &cc->freepages, 1, false); in fast_isolate_around()
1268 if (cc->nr_freepages >= cc->nr_migratepages) in fast_isolate_around()
1275 isolate_freepages_block(cc, &start_pfn, end_pfn, &cc->freepages, 1, false); in fast_isolate_around()
1278 if (cc->nr_freepages < cc->nr_migratepages) in fast_isolate_around()
1283 static int next_search_order(struct compact_control *cc, int order) in next_search_order() argument
1287 order = cc->order - 1; in next_search_order()
1290 if (order == cc->search_order) { in next_search_order()
1291 cc->search_order--; in next_search_order()
1292 if (cc->search_order < 0) in next_search_order()
1293 cc->search_order = cc->order - 1; in next_search_order()
1301 fast_isolate_freepages(struct compact_control *cc) in fast_isolate_freepages() argument
1303 unsigned int limit = min(1U, freelist_scan_limit(cc) >> 1); in fast_isolate_freepages()
1313 if (cc->order <= 0) in fast_isolate_freepages()
1314 return cc->free_pfn; in fast_isolate_freepages()
1320 if (cc->free_pfn >= cc->zone->compact_init_free_pfn) { in fast_isolate_freepages()
1329 distance = (cc->free_pfn - cc->migrate_pfn); in fast_isolate_freepages()
1330 low_pfn = pageblock_start_pfn(cc->free_pfn - (distance >> 2)); in fast_isolate_freepages()
1331 min_pfn = pageblock_start_pfn(cc->free_pfn - (distance >> 1)); in fast_isolate_freepages()
1340 cc->search_order = min_t(unsigned int, cc->order - 1, cc->search_order); in fast_isolate_freepages()
1342 for (order = cc->search_order; in fast_isolate_freepages()
1344 order = next_search_order(cc, order)) { in fast_isolate_freepages()
1345 struct free_area *area = &cc->zone->free_area[order]; in fast_isolate_freepages()
1354 spin_lock_irqsave(&cc->zone->lock, flags); in fast_isolate_freepages()
1367 cc->fast_search_fail = 0; in fast_isolate_freepages()
1368 cc->search_order = order; in fast_isolate_freepages()
1400 cc->nr_freepages += nr_isolated; in fast_isolate_freepages()
1401 list_add_tail(&page->lru, &cc->freepages); in fast_isolate_freepages()
1405 order = cc->search_order + 1; in fast_isolate_freepages()
1410 spin_unlock_irqrestore(&cc->zone->lock, flags); in fast_isolate_freepages()
1421 cc->fast_search_fail++; in fast_isolate_freepages()
1430 cc->free_pfn = highest; in fast_isolate_freepages()
1432 if (cc->direct_compaction && pfn_valid(min_pfn)) { in fast_isolate_freepages()
1435 cc->zone); in fast_isolate_freepages()
1436 cc->free_pfn = min_pfn; in fast_isolate_freepages()
1442 if (highest && highest >= cc->zone->compact_cached_free_pfn) { in fast_isolate_freepages()
1444 cc->zone->compact_cached_free_pfn = highest; in fast_isolate_freepages()
1447 cc->total_free_scanned += nr_scanned; in fast_isolate_freepages()
1449 return cc->free_pfn; in fast_isolate_freepages()
1452 fast_isolate_around(cc, low_pfn, nr_isolated); in fast_isolate_freepages()
1460 static void isolate_freepages(struct compact_control *cc) in isolate_freepages() argument
1462 struct zone *zone = cc->zone; in isolate_freepages()
1468 struct list_head *freelist = &cc->freepages; in isolate_freepages()
1472 isolate_start_pfn = fast_isolate_freepages(cc); in isolate_freepages()
1473 if (cc->nr_freepages) in isolate_freepages()
1487 isolate_start_pfn = cc->free_pfn; in isolate_freepages()
1491 low_pfn = pageblock_end_pfn(cc->migrate_pfn); in isolate_freepages()
1492 stride = cc->mode == MIGRATE_ASYNC ? COMPACT_CLUSTER_MAX : 1; in isolate_freepages()
1496 * pages on cc->migratepages. We stop searching if the migrate in isolate_freepages()
1518 if (!suitable_migration_target(cc, page)) in isolate_freepages()
1522 if (!isolation_suitable(cc, page)) in isolate_freepages()
1526 nr_isolated = isolate_freepages_block(cc, &isolate_start_pfn, in isolate_freepages()
1531 update_pageblock_skip(cc, page, block_start_pfn); in isolate_freepages()
1534 if (cc->nr_freepages >= cc->nr_migratepages) { in isolate_freepages()
1566 cc->free_pfn = isolate_start_pfn; in isolate_freepages()
1580 struct compact_control *cc = (struct compact_control *)data; in compaction_alloc() local
1583 if (list_empty(&cc->freepages)) { in compaction_alloc()
1584 isolate_freepages(cc); in compaction_alloc()
1586 if (list_empty(&cc->freepages)) in compaction_alloc()
1590 freepage = list_entry(cc->freepages.next, struct page, lru); in compaction_alloc()
1592 cc->nr_freepages--; in compaction_alloc()
1604 struct compact_control *cc = (struct compact_control *)data; in compaction_free() local
1606 list_add(&page->lru, &cc->freepages); in compaction_free()
1607 cc->nr_freepages++; in compaction_free()
1628 update_fast_start_pfn(struct compact_control *cc, unsigned long pfn) in update_fast_start_pfn() argument
1630 if (cc->fast_start_pfn == ULONG_MAX) in update_fast_start_pfn()
1633 if (!cc->fast_start_pfn) in update_fast_start_pfn()
1634 cc->fast_start_pfn = pfn; in update_fast_start_pfn()
1636 cc->fast_start_pfn = min(cc->fast_start_pfn, pfn); in update_fast_start_pfn()
1640 reinit_migrate_pfn(struct compact_control *cc) in reinit_migrate_pfn() argument
1642 if (!cc->fast_start_pfn || cc->fast_start_pfn == ULONG_MAX) in reinit_migrate_pfn()
1643 return cc->migrate_pfn; in reinit_migrate_pfn()
1645 cc->migrate_pfn = cc->fast_start_pfn; in reinit_migrate_pfn()
1646 cc->fast_start_pfn = ULONG_MAX; in reinit_migrate_pfn()
1648 return cc->migrate_pfn; in reinit_migrate_pfn()
1656 static unsigned long fast_find_migrateblock(struct compact_control *cc) in fast_find_migrateblock() argument
1658 unsigned int limit = freelist_scan_limit(cc); in fast_find_migrateblock()
1661 unsigned long pfn = cc->migrate_pfn; in fast_find_migrateblock()
1666 if (cc->ignore_skip_hint) in fast_find_migrateblock()
1674 if (pfn != cc->zone->zone_start_pfn && pfn != pageblock_start_pfn(pfn)) in fast_find_migrateblock()
1682 if (cc->order <= PAGE_ALLOC_COSTLY_ORDER) in fast_find_migrateblock()
1691 if (cc->direct_compaction && cc->migratetype != MIGRATE_MOVABLE) in fast_find_migrateblock()
1700 distance = (cc->free_pfn - cc->migrate_pfn) >> 1; in fast_find_migrateblock()
1701 if (cc->migrate_pfn != cc->zone->zone_start_pfn) in fast_find_migrateblock()
1703 high_pfn = pageblock_start_pfn(cc->migrate_pfn + distance); in fast_find_migrateblock()
1705 for (order = cc->order - 1; in fast_find_migrateblock()
1706 order >= PAGE_ALLOC_COSTLY_ORDER && pfn == cc->migrate_pfn && nr_scanned < limit; in fast_find_migrateblock()
1708 struct free_area *area = &cc->zone->free_area[order]; in fast_find_migrateblock()
1716 spin_lock_irqsave(&cc->zone->lock, flags); in fast_find_migrateblock()
1740 update_fast_start_pfn(cc, free_pfn); in fast_find_migrateblock()
1742 cc->fast_search_fail = 0; in fast_find_migrateblock()
1748 cc->fast_search_fail++; in fast_find_migrateblock()
1753 spin_unlock_irqrestore(&cc->zone->lock, flags); in fast_find_migrateblock()
1756 cc->total_migrate_scanned += nr_scanned; in fast_find_migrateblock()
1762 if (pfn == cc->migrate_pfn) in fast_find_migrateblock()
1763 pfn = reinit_migrate_pfn(cc); in fast_find_migrateblock()
1773 static isolate_migrate_t isolate_migratepages(struct compact_control *cc) in isolate_migratepages() argument
1781 (cc->mode != MIGRATE_SYNC ? ISOLATE_ASYNC_MIGRATE : 0); in isolate_migratepages()
1789 low_pfn = fast_find_migrateblock(cc); in isolate_migratepages()
1791 if (block_start_pfn < cc->zone->zone_start_pfn) in isolate_migratepages()
1792 block_start_pfn = cc->zone->zone_start_pfn; in isolate_migratepages()
1799 fast_find_block = low_pfn != cc->migrate_pfn && !cc->fast_search_fail; in isolate_migratepages()
1808 for (; block_end_pfn <= cc->free_pfn; in isolate_migratepages()
1823 block_end_pfn, cc->zone); in isolate_migratepages()
1835 !fast_find_block && !isolation_suitable(cc, page)) in isolate_migratepages()
1846 if (!suitable_migration_source(cc, page)) { in isolate_migratepages()
1847 update_cached_migrate(cc, block_end_pfn); in isolate_migratepages()
1852 low_pfn = isolate_migratepages_block(cc, low_pfn, in isolate_migratepages()
1867 cc->migrate_pfn = low_pfn; in isolate_migratepages()
1869 return cc->nr_migratepages ? ISOLATE_SUCCESS : ISOLATE_NONE; in isolate_migratepages()
1951 static enum compact_result __compact_finished(struct compact_control *cc) in __compact_finished() argument
1954 const int migratetype = cc->migratetype; in __compact_finished()
1958 if (compact_scanners_met(cc)) { in __compact_finished()
1960 reset_cached_positions(cc->zone); in __compact_finished()
1968 if (cc->direct_compaction) in __compact_finished()
1969 cc->zone->compact_blockskip_flush = true; in __compact_finished()
1971 if (cc->whole_zone) in __compact_finished()
1977 if (cc->proactive_compaction) { in __compact_finished()
1981 pgdat = cc->zone->zone_pgdat; in __compact_finished()
1985 score = fragmentation_score_zone(cc->zone); in __compact_finished()
1996 if (is_via_compact_memory(cc->order)) in __compact_finished()
2005 if (!IS_ALIGNED(cc->migrate_pfn, pageblock_nr_pages)) in __compact_finished()
2010 for (order = cc->order; order < MAX_ORDER; order++) { in __compact_finished()
2011 struct free_area *area = &cc->zone->free_area[order]; in __compact_finished()
2043 if (cc->mode == MIGRATE_ASYNC || in __compact_finished()
2044 IS_ALIGNED(cc->migrate_pfn, in __compact_finished()
2055 if (cc->contended || fatal_signal_pending(current)) in __compact_finished()
2061 static enum compact_result compact_finished(struct compact_control *cc) in compact_finished() argument
2065 ret = __compact_finished(cc); in compact_finished()
2066 trace_mm_compaction_finished(cc->zone, cc->order, ret); in compact_finished()
2194 compact_zone(struct compact_control *cc, struct capture_control *capc) in compact_zone() argument
2197 unsigned long start_pfn = cc->zone->zone_start_pfn; in compact_zone()
2198 unsigned long end_pfn = zone_end_pfn(cc->zone); in compact_zone()
2200 const bool sync = cc->mode != MIGRATE_ASYNC; in compact_zone()
2207 cc->total_migrate_scanned = 0; in compact_zone()
2208 cc->total_free_scanned = 0; in compact_zone()
2209 cc->nr_migratepages = 0; in compact_zone()
2210 cc->nr_freepages = 0; in compact_zone()
2211 INIT_LIST_HEAD(&cc->freepages); in compact_zone()
2212 INIT_LIST_HEAD(&cc->migratepages); in compact_zone()
2214 cc->migratetype = gfp_migratetype(cc->gfp_mask); in compact_zone()
2215 ret = compaction_suitable(cc->zone, cc->order, cc->alloc_flags, in compact_zone()
2216 cc->highest_zoneidx); in compact_zone()
2228 if (compaction_restarting(cc->zone, cc->order)) in compact_zone()
2229 __reset_isolation_suitable(cc->zone); in compact_zone()
2237 cc->fast_start_pfn = 0; in compact_zone()
2238 if (cc->whole_zone) { in compact_zone()
2239 cc->migrate_pfn = start_pfn; in compact_zone()
2240 cc->free_pfn = pageblock_start_pfn(end_pfn - 1); in compact_zone()
2242 cc->migrate_pfn = cc->zone->compact_cached_migrate_pfn[sync]; in compact_zone()
2243 cc->free_pfn = cc->zone->compact_cached_free_pfn; in compact_zone()
2244 if (cc->free_pfn < start_pfn || cc->free_pfn >= end_pfn) { in compact_zone()
2245 cc->free_pfn = pageblock_start_pfn(end_pfn - 1); in compact_zone()
2246 cc->zone->compact_cached_free_pfn = cc->free_pfn; in compact_zone()
2248 if (cc->migrate_pfn < start_pfn || cc->migrate_pfn >= end_pfn) { in compact_zone()
2249 cc->migrate_pfn = start_pfn; in compact_zone()
2250 cc->zone->compact_cached_migrate_pfn[0] = cc->migrate_pfn; in compact_zone()
2251 cc->zone->compact_cached_migrate_pfn[1] = cc->migrate_pfn; in compact_zone()
2254 if (cc->migrate_pfn <= cc->zone->compact_init_migrate_pfn) in compact_zone()
2255 cc->whole_zone = true; in compact_zone()
2269 cc->zone->compact_cached_migrate_pfn[0] == cc->zone->compact_cached_migrate_pfn[1]; in compact_zone()
2271 trace_mm_compaction_begin(start_pfn, cc->migrate_pfn, in compact_zone()
2272 cc->free_pfn, end_pfn, sync); in compact_zone()
2276 while ((ret = compact_finished(cc)) == COMPACT_CONTINUE) { in compact_zone()
2278 unsigned long start_pfn = cc->migrate_pfn; in compact_zone()
2288 cc->rescan = false; in compact_zone()
2291 cc->rescan = true; in compact_zone()
2294 switch (isolate_migratepages(cc)) { in compact_zone()
2297 putback_movable_pages(&cc->migratepages); in compact_zone()
2298 cc->nr_migratepages = 0; in compact_zone()
2302 cc->zone->compact_cached_migrate_pfn[1] = in compact_zone()
2303 cc->zone->compact_cached_migrate_pfn[0]; in compact_zone()
2309 * previous cc->order aligned block. in compact_zone()
2318 err = migrate_pages(&cc->migratepages, compaction_alloc, in compact_zone()
2319 compaction_free, (unsigned long)cc, cc->mode, in compact_zone()
2322 trace_mm_compaction_migratepages(cc->nr_migratepages, err, in compact_zone()
2323 &cc->migratepages); in compact_zone()
2326 cc->nr_migratepages = 0; in compact_zone()
2328 putback_movable_pages(&cc->migratepages); in compact_zone()
2333 if (err == -ENOMEM && !compact_scanners_met(cc)) { in compact_zone()
2341 if (cc->direct_compaction && in compact_zone()
2342 (cc->mode == MIGRATE_ASYNC)) { in compact_zone()
2343 cc->migrate_pfn = block_end_pfn( in compact_zone()
2344 cc->migrate_pfn - 1, cc->order); in compact_zone()
2353 * cc->order aligned block where we migrated from? If yes, in compact_zone()
2358 if (cc->order > 0 && last_migrated_pfn) { in compact_zone()
2360 block_start_pfn(cc->migrate_pfn, cc->order); in compact_zone()
2363 lru_add_drain_cpu_zone(cc->zone); in compact_zone()
2381 if (cc->nr_freepages > 0) { in compact_zone()
2382 unsigned long free_pfn = release_freepages(&cc->freepages); in compact_zone()
2384 cc->nr_freepages = 0; in compact_zone()
2392 if (free_pfn > cc->zone->compact_cached_free_pfn) in compact_zone()
2393 cc->zone->compact_cached_free_pfn = free_pfn; in compact_zone()
2396 count_compact_events(COMPACTMIGRATE_SCANNED, cc->total_migrate_scanned); in compact_zone()
2397 count_compact_events(COMPACTFREE_SCANNED, cc->total_free_scanned); in compact_zone()
2399 trace_mm_compaction_end(start_pfn, cc->migrate_pfn, in compact_zone()
2400 cc->free_pfn, end_pfn, sync, ret); in compact_zone()
2411 struct compact_control cc = { in compact_zone_order() local
2426 .cc = &cc, in compact_zone_order()
2438 ret = compact_zone(&cc, &capc); in compact_zone_order()
2440 VM_BUG_ON(!list_empty(&cc.freepages)); in compact_zone_order()
2441 VM_BUG_ON(!list_empty(&cc.migratepages)); in compact_zone_order()
2548 struct compact_control cc = { in proactive_compact_node() local
2562 cc.zone = zone; in proactive_compact_node()
2564 compact_zone(&cc, NULL); in proactive_compact_node()
2566 VM_BUG_ON(!list_empty(&cc.freepages)); in proactive_compact_node()
2567 VM_BUG_ON(!list_empty(&cc.migratepages)); in proactive_compact_node()
2577 struct compact_control cc = { in compact_node() local
2592 cc.zone = zone; in compact_node()
2594 compact_zone(&cc, NULL); in compact_node()
2596 VM_BUG_ON(!list_empty(&cc.freepages)); in compact_node()
2597 VM_BUG_ON(!list_empty(&cc.migratepages)); in compact_node()
2698 struct compact_control cc = { in kcompactd_do_work() local
2706 trace_mm_compaction_kcompactd_wake(pgdat->node_id, cc.order, in kcompactd_do_work()
2707 cc.highest_zoneidx); in kcompactd_do_work()
2710 for (zoneid = 0; zoneid <= cc.highest_zoneidx; zoneid++) { in kcompactd_do_work()
2717 if (compaction_deferred(zone, cc.order)) in kcompactd_do_work()
2720 if (compaction_suitable(zone, cc.order, 0, zoneid) != in kcompactd_do_work()
2727 cc.zone = zone; in kcompactd_do_work()
2728 status = compact_zone(&cc, NULL); in kcompactd_do_work()
2731 compaction_defer_reset(zone, cc.order, false); in kcompactd_do_work()
2736 * order >= cc.order. This is ratelimited by the in kcompactd_do_work()
2745 defer_compaction(zone, cc.order); in kcompactd_do_work()
2749 cc.total_migrate_scanned); in kcompactd_do_work()
2751 cc.total_free_scanned); in kcompactd_do_work()
2753 VM_BUG_ON(!list_empty(&cc.freepages)); in kcompactd_do_work()
2754 VM_BUG_ON(!list_empty(&cc.migratepages)); in kcompactd_do_work()
2762 if (pgdat->kcompactd_max_order <= cc.order) in kcompactd_do_work()
2764 if (pgdat->kcompactd_highest_zoneidx >= cc.highest_zoneidx) in kcompactd_do_work()