Lines Matching full:cc
215 static inline bool isolation_suitable(struct compact_control *cc, in isolation_suitable() argument
218 if (cc->ignore_skip_hint) in isolation_suitable()
446 static bool test_and_set_skip(struct compact_control *cc, struct page *page) in test_and_set_skip() argument
451 if (cc->ignore_skip_hint) in test_and_set_skip()
455 if (!skip && !cc->no_set_skip_hint) in test_and_set_skip()
461 static void update_cached_migrate(struct compact_control *cc, unsigned long pfn) in update_cached_migrate() argument
463 struct zone *zone = cc->zone; in update_cached_migrate()
466 if (cc->no_set_skip_hint) in update_cached_migrate()
474 if (cc->mode != MIGRATE_ASYNC && in update_cached_migrate()
483 static void update_pageblock_skip(struct compact_control *cc, in update_pageblock_skip() argument
486 struct zone *zone = cc->zone; in update_pageblock_skip()
488 if (cc->no_set_skip_hint) in update_pageblock_skip()
497 static inline bool isolation_suitable(struct compact_control *cc, in isolation_suitable() argument
508 static inline void update_pageblock_skip(struct compact_control *cc, in update_pageblock_skip() argument
513 static void update_cached_migrate(struct compact_control *cc, unsigned long pfn) in update_cached_migrate() argument
517 static bool test_and_set_skip(struct compact_control *cc, struct page *page) in test_and_set_skip() argument
533 struct compact_control *cc) in compact_lock_irqsave() argument
537 if (cc->mode == MIGRATE_ASYNC && !cc->contended) { in compact_lock_irqsave()
541 cc->contended = true; in compact_lock_irqsave()
561 unsigned long flags, bool *locked, struct compact_control *cc) in compact_unlock_should_abort() argument
569 cc->contended = true; in compact_unlock_should_abort()
583 static unsigned long isolate_freepages_block(struct compact_control *cc, in isolate_freepages_block() argument
613 && compact_unlock_should_abort(&cc->zone->lock, flags, in isolate_freepages_block()
614 &locked, cc)) in isolate_freepages_block()
642 locked = compact_lock_irqsave(&cc->zone->lock, in isolate_freepages_block()
643 &flags, cc); in isolate_freepages_block()
659 cc->nr_freepages += isolated; in isolate_freepages_block()
662 if (!strict && cc->nr_migratepages <= cc->nr_freepages) { in isolate_freepages_block()
678 spin_unlock_irqrestore(&cc->zone->lock, flags); in isolate_freepages_block()
700 cc->total_free_scanned += nr_scanned; in isolate_freepages_block()
708 * @cc: Compaction control structure.
721 isolate_freepages_range(struct compact_control *cc, in isolate_freepages_range() argument
729 if (block_start_pfn < cc->zone->zone_start_pfn) in isolate_freepages_range()
730 block_start_pfn = cc->zone->zone_start_pfn; in isolate_freepages_range()
752 block_end_pfn, cc->zone)) in isolate_freepages_range()
755 isolated = isolate_freepages_block(cc, &isolate_start_pfn, in isolate_freepages_range()
787 static bool too_many_isolated(struct compact_control *cc) in too_many_isolated() argument
789 pg_data_t *pgdat = cc->zone->zone_pgdat; in too_many_isolated()
807 if (cc->gfp_mask & __GFP_FS) { in too_many_isolated()
822 * @cc: Compaction control structure.
831 * cc->migrate_pfn will contain the next pfn to scan.
833 * The pages are isolated on cc->migratepages list (not required to be empty),
834 * and cc->nr_migratepages is updated accordingly.
837 isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, in isolate_migratepages_block() argument
840 pg_data_t *pgdat = cc->zone->zone_pgdat; in isolate_migratepages_block()
854 cc->migrate_pfn = low_pfn; in isolate_migratepages_block()
861 while (unlikely(too_many_isolated(cc))) { in isolate_migratepages_block()
863 if (cc->nr_migratepages) in isolate_migratepages_block()
867 if (cc->mode == MIGRATE_ASYNC) in isolate_migratepages_block()
878 if (cc->direct_compaction && (cc->mode == MIGRATE_ASYNC)) { in isolate_migratepages_block()
880 next_skip_pfn = block_end_pfn(low_pfn, cc->order); in isolate_migratepages_block()
906 next_skip_pfn = block_end_pfn(low_pfn, cc->order); in isolate_migratepages_block()
921 cc->contended = true; in isolate_migratepages_block()
941 low_pfn == cc->zone->zone_start_pfn)) { in isolate_migratepages_block()
942 if (!isolation_suitable(cc, page)) { in isolate_migratepages_block()
950 if (PageHuge(page) && cc->alloc_contig) { in isolate_migratepages_block()
956 ret = isolate_or_dissolve_huge_page(page, &cc->migratepages); in isolate_migratepages_block()
974 * on the cc->migratepages list. in isolate_migratepages_block()
1018 if (PageCompound(page) && !cc->alloc_contig) { in isolate_migratepages_block()
1076 if (!(cc->gfp_mask & __GFP_FS) && mapping) in isolate_migratepages_block()
1148 compact_lock_irqsave(&lruvec->lru_lock, &flags, cc); in isolate_migratepages_block()
1160 if (test_and_set_skip(cc, valid_page) && in isolate_migratepages_block()
1161 !cc->finish_pageblock) { in isolate_migratepages_block()
1171 if (unlikely(folio_test_large(folio) && !cc->alloc_contig)) { in isolate_migratepages_block()
1190 list_add(&folio->lru, &cc->migratepages); in isolate_migratepages_block()
1192 cc->nr_migratepages += folio_nr_pages(folio); in isolate_migratepages_block()
1202 if (cc->nr_migratepages >= COMPACT_CLUSTER_MAX && in isolate_migratepages_block()
1203 !cc->finish_pageblock && !cc->contended) { in isolate_migratepages_block()
1224 * instead of migrating, as we cannot form the cc->order buddy in isolate_migratepages_block()
1232 putback_movable_pages(&cc->migratepages); in isolate_migratepages_block()
1233 cc->nr_migratepages = 0; in isolate_migratepages_block()
1243 next_skip_pfn += 1UL << cc->order; in isolate_migratepages_block()
1275 if (low_pfn == end_pfn && (!nr_isolated || cc->finish_pageblock)) { in isolate_migratepages_block()
1276 if (!cc->no_set_skip_hint && valid_page && !skip_updated) in isolate_migratepages_block()
1278 update_cached_migrate(cc, low_pfn); in isolate_migratepages_block()
1285 cc->total_migrate_scanned += nr_scanned; in isolate_migratepages_block()
1289 cc->migrate_pfn = low_pfn; in isolate_migratepages_block()
1296 * @cc: Compaction control structure.
1304 isolate_migratepages_range(struct compact_control *cc, unsigned long start_pfn, in isolate_migratepages_range() argument
1313 if (block_start_pfn < cc->zone->zone_start_pfn) in isolate_migratepages_range()
1314 block_start_pfn = cc->zone->zone_start_pfn; in isolate_migratepages_range()
1324 block_end_pfn, cc->zone)) in isolate_migratepages_range()
1327 ret = isolate_migratepages_block(cc, pfn, block_end_pfn, in isolate_migratepages_range()
1333 if (cc->nr_migratepages >= COMPACT_CLUSTER_MAX) in isolate_migratepages_range()
1343 static bool suitable_migration_source(struct compact_control *cc, in suitable_migration_source() argument
1351 if ((cc->mode != MIGRATE_ASYNC) || !cc->direct_compaction) in suitable_migration_source()
1356 if (cc->migratetype == MIGRATE_MOVABLE) in suitable_migration_source()
1359 return block_mt == cc->migratetype; in suitable_migration_source()
1363 static bool suitable_migration_target(struct compact_control *cc, in suitable_migration_target() argument
1377 if (cc->ignore_block_suitable) in suitable_migration_target()
1389 freelist_scan_limit(struct compact_control *cc) in freelist_scan_limit() argument
1393 return (COMPACT_CLUSTER_MAX >> min(shift, cc->fast_search_fail)) + 1; in freelist_scan_limit()
1400 static inline bool compact_scanners_met(struct compact_control *cc) in compact_scanners_met() argument
1402 return (cc->free_pfn >> pageblock_order) in compact_scanners_met()
1403 <= (cc->migrate_pfn >> pageblock_order); in compact_scanners_met()
1440 fast_isolate_around(struct compact_control *cc, unsigned long pfn) in fast_isolate_around() argument
1446 if (cc->nr_freepages >= cc->nr_migratepages) in fast_isolate_around()
1450 if (cc->direct_compaction && cc->mode == MIGRATE_ASYNC) in fast_isolate_around()
1454 start_pfn = max(pageblock_start_pfn(pfn), cc->zone->zone_start_pfn); in fast_isolate_around()
1455 end_pfn = min(pageblock_end_pfn(pfn), zone_end_pfn(cc->zone)); in fast_isolate_around()
1457 page = pageblock_pfn_to_page(start_pfn, end_pfn, cc->zone); in fast_isolate_around()
1461 isolate_freepages_block(cc, &start_pfn, end_pfn, &cc->freepages, 1, false); in fast_isolate_around()
1464 if (start_pfn == end_pfn && !cc->no_set_skip_hint) in fast_isolate_around()
1469 static int next_search_order(struct compact_control *cc, int order) in next_search_order() argument
1473 order = cc->order - 1; in next_search_order()
1476 if (order == cc->search_order) { in next_search_order()
1477 cc->search_order--; in next_search_order()
1478 if (cc->search_order < 0) in next_search_order()
1479 cc->search_order = cc->order - 1; in next_search_order()
1486 static void fast_isolate_freepages(struct compact_control *cc) in fast_isolate_freepages() argument
1488 unsigned int limit = max(1U, freelist_scan_limit(cc) >> 1); in fast_isolate_freepages()
1498 if (cc->order <= 0) in fast_isolate_freepages()
1505 if (cc->free_pfn >= cc->zone->compact_init_free_pfn) { in fast_isolate_freepages()
1514 distance = (cc->free_pfn - cc->migrate_pfn); in fast_isolate_freepages()
1515 low_pfn = pageblock_start_pfn(cc->free_pfn - (distance >> 2)); in fast_isolate_freepages()
1516 min_pfn = pageblock_start_pfn(cc->free_pfn - (distance >> 1)); in fast_isolate_freepages()
1525 cc->search_order = min_t(unsigned int, cc->order - 1, cc->search_order); in fast_isolate_freepages()
1527 for (order = cc->search_order; in fast_isolate_freepages()
1529 order = next_search_order(cc, order)) { in fast_isolate_freepages()
1530 struct free_area *area = &cc->zone->free_area[order]; in fast_isolate_freepages()
1540 spin_lock_irqsave(&cc->zone->lock, flags); in fast_isolate_freepages()
1551 cc->zone->zone_start_pfn); in fast_isolate_freepages()
1554 cc->fast_search_fail = 0; in fast_isolate_freepages()
1555 cc->search_order = order; in fast_isolate_freepages()
1589 cc->nr_freepages += nr_isolated; in fast_isolate_freepages()
1590 list_add_tail(&page->lru, &cc->freepages); in fast_isolate_freepages()
1594 order = cc->search_order + 1; in fast_isolate_freepages()
1599 spin_unlock_irqrestore(&cc->zone->lock, flags); in fast_isolate_freepages()
1602 if (cc->nr_freepages >= cc->nr_migratepages) in fast_isolate_freepages()
1613 trace_mm_compaction_fast_isolate_freepages(min_pfn, cc->free_pfn, in fast_isolate_freepages()
1617 cc->fast_search_fail++; in fast_isolate_freepages()
1626 cc->free_pfn = highest; in fast_isolate_freepages()
1628 if (cc->direct_compaction && pfn_valid(min_pfn)) { in fast_isolate_freepages()
1631 zone_end_pfn(cc->zone)), in fast_isolate_freepages()
1632 cc->zone); in fast_isolate_freepages()
1633 if (page && !suitable_migration_target(cc, page)) in fast_isolate_freepages()
1636 cc->free_pfn = min_pfn; in fast_isolate_freepages()
1642 if (highest && highest >= cc->zone->compact_cached_free_pfn) { in fast_isolate_freepages()
1644 cc->zone->compact_cached_free_pfn = highest; in fast_isolate_freepages()
1647 cc->total_free_scanned += nr_scanned; in fast_isolate_freepages()
1652 fast_isolate_around(cc, low_pfn); in fast_isolate_freepages()
1659 static void isolate_freepages(struct compact_control *cc) in isolate_freepages() argument
1661 struct zone *zone = cc->zone; in isolate_freepages()
1667 struct list_head *freelist = &cc->freepages; in isolate_freepages()
1671 fast_isolate_freepages(cc); in isolate_freepages()
1672 if (cc->nr_freepages) in isolate_freepages()
1686 isolate_start_pfn = cc->free_pfn; in isolate_freepages()
1690 low_pfn = pageblock_end_pfn(cc->migrate_pfn); in isolate_freepages()
1691 stride = cc->mode == MIGRATE_ASYNC ? COMPACT_CLUSTER_MAX : 1; in isolate_freepages()
1695 * pages on cc->migratepages. We stop searching if the migrate in isolate_freepages()
1724 if (!suitable_migration_target(cc, page)) in isolate_freepages()
1728 if (!isolation_suitable(cc, page)) in isolate_freepages()
1732 nr_isolated = isolate_freepages_block(cc, &isolate_start_pfn, in isolate_freepages()
1737 update_pageblock_skip(cc, page, block_start_pfn - in isolate_freepages()
1741 if (cc->nr_freepages >= cc->nr_migratepages) { in isolate_freepages()
1773 cc->free_pfn = isolate_start_pfn; in isolate_freepages()
1786 struct compact_control *cc = (struct compact_control *)data; in compaction_alloc() local
1789 if (list_empty(&cc->freepages)) { in compaction_alloc()
1790 isolate_freepages(cc); in compaction_alloc()
1792 if (list_empty(&cc->freepages)) in compaction_alloc()
1796 dst = list_entry(cc->freepages.next, struct folio, lru); in compaction_alloc()
1798 cc->nr_freepages--; in compaction_alloc()
1810 struct compact_control *cc = (struct compact_control *)data; in compaction_free() local
1812 list_add(&dst->lru, &cc->freepages); in compaction_free()
1813 cc->nr_freepages++; in compaction_free()
1838 update_fast_start_pfn(struct compact_control *cc, unsigned long pfn) in update_fast_start_pfn() argument
1840 if (cc->fast_start_pfn == ULONG_MAX) in update_fast_start_pfn()
1843 if (!cc->fast_start_pfn) in update_fast_start_pfn()
1844 cc->fast_start_pfn = pfn; in update_fast_start_pfn()
1846 cc->fast_start_pfn = min(cc->fast_start_pfn, pfn); in update_fast_start_pfn()
1850 reinit_migrate_pfn(struct compact_control *cc) in reinit_migrate_pfn() argument
1852 if (!cc->fast_start_pfn || cc->fast_start_pfn == ULONG_MAX) in reinit_migrate_pfn()
1853 return cc->migrate_pfn; in reinit_migrate_pfn()
1855 cc->migrate_pfn = cc->fast_start_pfn; in reinit_migrate_pfn()
1856 cc->fast_start_pfn = ULONG_MAX; in reinit_migrate_pfn()
1858 return cc->migrate_pfn; in reinit_migrate_pfn()
1866 static unsigned long fast_find_migrateblock(struct compact_control *cc) in fast_find_migrateblock() argument
1868 unsigned int limit = freelist_scan_limit(cc); in fast_find_migrateblock()
1871 unsigned long pfn = cc->migrate_pfn; in fast_find_migrateblock()
1877 if (cc->ignore_skip_hint) in fast_find_migrateblock()
1884 if (cc->finish_pageblock) in fast_find_migrateblock()
1892 if (pfn != cc->zone->zone_start_pfn && pfn != pageblock_start_pfn(pfn)) in fast_find_migrateblock()
1900 if (cc->order <= PAGE_ALLOC_COSTLY_ORDER) in fast_find_migrateblock()
1909 if (cc->direct_compaction && cc->migratetype != MIGRATE_MOVABLE) in fast_find_migrateblock()
1918 distance = (cc->free_pfn - cc->migrate_pfn) >> 1; in fast_find_migrateblock()
1919 if (cc->migrate_pfn != cc->zone->zone_start_pfn) in fast_find_migrateblock()
1921 high_pfn = pageblock_start_pfn(cc->migrate_pfn + distance); in fast_find_migrateblock()
1923 for (order = cc->order - 1; in fast_find_migrateblock()
1926 struct free_area *area = &cc->zone->free_area[order]; in fast_find_migrateblock()
1934 spin_lock_irqsave(&cc->zone->lock, flags); in fast_find_migrateblock()
1958 update_fast_start_pfn(cc, free_pfn); in fast_find_migrateblock()
1960 if (pfn < cc->zone->zone_start_pfn) in fast_find_migrateblock()
1961 pfn = cc->zone->zone_start_pfn; in fast_find_migrateblock()
1962 cc->fast_search_fail = 0; in fast_find_migrateblock()
1967 spin_unlock_irqrestore(&cc->zone->lock, flags); in fast_find_migrateblock()
1970 cc->total_migrate_scanned += nr_scanned; in fast_find_migrateblock()
1977 cc->fast_search_fail++; in fast_find_migrateblock()
1978 pfn = reinit_migrate_pfn(cc); in fast_find_migrateblock()
1988 static isolate_migrate_t isolate_migratepages(struct compact_control *cc) in isolate_migratepages() argument
1996 (cc->mode != MIGRATE_SYNC ? ISOLATE_ASYNC_MIGRATE : 0); in isolate_migratepages()
2004 low_pfn = fast_find_migrateblock(cc); in isolate_migratepages()
2006 if (block_start_pfn < cc->zone->zone_start_pfn) in isolate_migratepages()
2007 block_start_pfn = cc->zone->zone_start_pfn; in isolate_migratepages()
2014 fast_find_block = low_pfn != cc->migrate_pfn && !cc->fast_search_fail; in isolate_migratepages()
2023 for (; block_end_pfn <= cc->free_pfn; in isolate_migratepages()
2025 cc->migrate_pfn = low_pfn = block_end_pfn, in isolate_migratepages()
2038 block_end_pfn, cc->zone); in isolate_migratepages()
2044 block_end_pfn = min(next_pfn, cc->free_pfn); in isolate_migratepages()
2056 low_pfn == cc->zone->zone_start_pfn) && in isolate_migratepages()
2057 !fast_find_block && !isolation_suitable(cc, page)) in isolate_migratepages()
2068 if (!suitable_migration_source(cc, page)) { in isolate_migratepages()
2069 update_cached_migrate(cc, block_end_pfn); in isolate_migratepages()
2074 if (isolate_migratepages_block(cc, low_pfn, block_end_pfn, in isolate_migratepages()
2086 return cc->nr_migratepages ? ISOLATE_SUCCESS : ISOLATE_NONE; in isolate_migratepages()
2192 static enum compact_result __compact_finished(struct compact_control *cc) in __compact_finished() argument
2195 const int migratetype = cc->migratetype; in __compact_finished()
2199 if (compact_scanners_met(cc)) { in __compact_finished()
2201 reset_cached_positions(cc->zone); in __compact_finished()
2209 if (cc->direct_compaction) in __compact_finished()
2210 cc->zone->compact_blockskip_flush = true; in __compact_finished()
2212 if (cc->whole_zone) in __compact_finished()
2218 if (cc->proactive_compaction) { in __compact_finished()
2222 pgdat = cc->zone->zone_pgdat; in __compact_finished()
2226 score = fragmentation_score_zone(cc->zone); in __compact_finished()
2237 if (is_via_compact_memory(cc->order)) in __compact_finished()
2246 if (!pageblock_aligned(cc->migrate_pfn)) in __compact_finished()
2251 for (order = cc->order; order < NR_PAGE_ORDERS; order++) { in __compact_finished()
2252 struct free_area *area = &cc->zone->free_area[order]; in __compact_finished()
2283 if (cc->contended || fatal_signal_pending(current)) in __compact_finished()
2289 static enum compact_result compact_finished(struct compact_control *cc) in compact_finished() argument
2293 ret = __compact_finished(cc); in compact_finished()
2294 trace_mm_compaction_finished(cc->zone, cc->order, ret); in compact_finished()
2428 compact_zone(struct compact_control *cc, struct capture_control *capc) in compact_zone() argument
2431 unsigned long start_pfn = cc->zone->zone_start_pfn; in compact_zone()
2432 unsigned long end_pfn = zone_end_pfn(cc->zone); in compact_zone()
2434 const bool sync = cc->mode != MIGRATE_ASYNC; in compact_zone()
2442 cc->total_migrate_scanned = 0; in compact_zone()
2443 cc->total_free_scanned = 0; in compact_zone()
2444 cc->nr_migratepages = 0; in compact_zone()
2445 cc->nr_freepages = 0; in compact_zone()
2446 INIT_LIST_HEAD(&cc->freepages); in compact_zone()
2447 INIT_LIST_HEAD(&cc->migratepages); in compact_zone()
2449 cc->migratetype = gfp_migratetype(cc->gfp_mask); in compact_zone()
2451 if (!is_via_compact_memory(cc->order)) { in compact_zone()
2452 ret = compaction_suit_allocation_order(cc->zone, cc->order, in compact_zone()
2453 cc->highest_zoneidx, in compact_zone()
2454 cc->alloc_flags); in compact_zone()
2463 if (compaction_restarting(cc->zone, cc->order)) in compact_zone()
2464 __reset_isolation_suitable(cc->zone); in compact_zone()
2472 cc->fast_start_pfn = 0; in compact_zone()
2473 if (cc->whole_zone) { in compact_zone()
2474 cc->migrate_pfn = start_pfn; in compact_zone()
2475 cc->free_pfn = pageblock_start_pfn(end_pfn - 1); in compact_zone()
2477 cc->migrate_pfn = cc->zone->compact_cached_migrate_pfn[sync]; in compact_zone()
2478 cc->free_pfn = cc->zone->compact_cached_free_pfn; in compact_zone()
2479 if (cc->free_pfn < start_pfn || cc->free_pfn >= end_pfn) { in compact_zone()
2480 cc->free_pfn = pageblock_start_pfn(end_pfn - 1); in compact_zone()
2481 cc->zone->compact_cached_free_pfn = cc->free_pfn; in compact_zone()
2483 if (cc->migrate_pfn < start_pfn || cc->migrate_pfn >= end_pfn) { in compact_zone()
2484 cc->migrate_pfn = start_pfn; in compact_zone()
2485 cc->zone->compact_cached_migrate_pfn[0] = cc->migrate_pfn; in compact_zone()
2486 cc->zone->compact_cached_migrate_pfn[1] = cc->migrate_pfn; in compact_zone()
2489 if (cc->migrate_pfn <= cc->zone->compact_init_migrate_pfn) in compact_zone()
2490 cc->whole_zone = true; in compact_zone()
2504 cc->zone->compact_cached_migrate_pfn[0] == cc->zone->compact_cached_migrate_pfn[1]; in compact_zone()
2506 trace_mm_compaction_begin(cc, start_pfn, end_pfn, sync); in compact_zone()
2511 while ((ret = compact_finished(cc)) == COMPACT_CONTINUE) { in compact_zone()
2513 unsigned long iteration_start_pfn = cc->migrate_pfn; in compact_zone()
2523 cc->finish_pageblock = false; in compact_zone()
2526 cc->finish_pageblock = true; in compact_zone()
2530 switch (isolate_migratepages(cc)) { in compact_zone()
2533 putback_movable_pages(&cc->migratepages); in compact_zone()
2534 cc->nr_migratepages = 0; in compact_zone()
2538 cc->zone->compact_cached_migrate_pfn[1] = in compact_zone()
2539 cc->zone->compact_cached_migrate_pfn[0]; in compact_zone()
2545 * previous cc->order aligned block. in compact_zone()
2550 last_migrated_pfn = max(cc->zone->zone_start_pfn, in compact_zone()
2551 pageblock_start_pfn(cc->migrate_pfn - 1)); in compact_zone()
2554 err = migrate_pages(&cc->migratepages, compaction_alloc, in compact_zone()
2555 compaction_free, (unsigned long)cc, cc->mode, in compact_zone()
2558 trace_mm_compaction_migratepages(cc, nr_succeeded); in compact_zone()
2561 cc->nr_migratepages = 0; in compact_zone()
2563 putback_movable_pages(&cc->migratepages); in compact_zone()
2568 if (err == -ENOMEM && !compact_scanners_met(cc)) { in compact_zone()
2583 if (!pageblock_aligned(cc->migrate_pfn) && in compact_zone()
2584 !cc->ignore_skip_hint && !cc->finish_pageblock && in compact_zone()
2585 (cc->mode < MIGRATE_SYNC)) { in compact_zone()
2586 cc->finish_pageblock = true; in compact_zone()
2593 if (cc->order == COMPACTION_HPAGE_ORDER) in compact_zone()
2609 * cc->order aligned block where we migrated from? If yes, in compact_zone()
2614 if (cc->order > 0 && last_migrated_pfn) { in compact_zone()
2616 block_start_pfn(cc->migrate_pfn, cc->order); in compact_zone()
2619 lru_add_drain_cpu_zone(cc->zone); in compact_zone()
2631 if (cc->nr_freepages > 0) { in compact_zone()
2632 unsigned long free_pfn = release_freepages(&cc->freepages); in compact_zone()
2634 cc->nr_freepages = 0; in compact_zone()
2642 if (free_pfn > cc->zone->compact_cached_free_pfn) in compact_zone()
2643 cc->zone->compact_cached_free_pfn = free_pfn; in compact_zone()
2646 count_compact_events(COMPACTMIGRATE_SCANNED, cc->total_migrate_scanned); in compact_zone()
2647 count_compact_events(COMPACTFREE_SCANNED, cc->total_free_scanned); in compact_zone()
2649 trace_mm_compaction_end(cc, start_pfn, end_pfn, sync, ret); in compact_zone()
2651 VM_BUG_ON(!list_empty(&cc->freepages)); in compact_zone()
2652 VM_BUG_ON(!list_empty(&cc->migratepages)); in compact_zone()
2663 struct compact_control cc = { in compact_zone_order() local
2678 .cc = &cc, in compact_zone_order()
2690 ret = compact_zone(&cc, &capc); in compact_zone_order()
2798 struct compact_control cc = { in proactive_compact_node() local
2812 cc.zone = zone; in proactive_compact_node()
2814 compact_zone(&cc, NULL); in proactive_compact_node()
2817 cc.total_migrate_scanned); in proactive_compact_node()
2819 cc.total_free_scanned); in proactive_compact_node()
2829 struct compact_control cc = { in compact_node() local
2844 cc.zone = zone; in compact_node()
2846 compact_zone(&cc, NULL); in compact_node()
2976 struct compact_control cc = { in kcompactd_do_work() local
2986 trace_mm_compaction_kcompactd_wake(pgdat->node_id, cc.order, in kcompactd_do_work()
2987 cc.highest_zoneidx); in kcompactd_do_work()
2990 for (zoneid = 0; zoneid <= cc.highest_zoneidx; zoneid++) { in kcompactd_do_work()
2997 if (compaction_deferred(zone, cc.order)) in kcompactd_do_work()
3001 cc.order, zoneid, ALLOC_WMARK_MIN); in kcompactd_do_work()
3008 cc.zone = zone; in kcompactd_do_work()
3009 status = compact_zone(&cc, NULL); in kcompactd_do_work()
3012 compaction_defer_reset(zone, cc.order, false); in kcompactd_do_work()
3017 * order >= cc.order. This is ratelimited by the in kcompactd_do_work()
3026 defer_compaction(zone, cc.order); in kcompactd_do_work()
3030 cc.total_migrate_scanned); in kcompactd_do_work()
3032 cc.total_free_scanned); in kcompactd_do_work()
3040 if (pgdat->kcompactd_max_order <= cc.order) in kcompactd_do_work()
3042 if (pgdat->kcompactd_highest_zoneidx >= cc.highest_zoneidx) in kcompactd_do_work()