Lines Matching refs:cc
205 static inline bool isolation_suitable(struct compact_control *cc, in isolation_suitable() argument
208 if (cc->ignore_skip_hint) in isolation_suitable()
388 static bool test_and_set_skip(struct compact_control *cc, struct page *page, in test_and_set_skip() argument
394 if (cc->ignore_skip_hint) in test_and_set_skip()
401 if (!skip && !cc->no_set_skip_hint) in test_and_set_skip()
407 static void update_cached_migrate(struct compact_control *cc, unsigned long pfn) in update_cached_migrate() argument
409 struct zone *zone = cc->zone; in update_cached_migrate()
414 if (cc->no_set_skip_hint) in update_cached_migrate()
419 if (cc->mode != MIGRATE_ASYNC && in update_cached_migrate()
428 static void update_pageblock_skip(struct compact_control *cc, in update_pageblock_skip() argument
431 struct zone *zone = cc->zone; in update_pageblock_skip()
433 if (cc->no_set_skip_hint) in update_pageblock_skip()
446 static inline bool isolation_suitable(struct compact_control *cc, in isolation_suitable() argument
457 static inline void update_pageblock_skip(struct compact_control *cc, in update_pageblock_skip() argument
462 static void update_cached_migrate(struct compact_control *cc, unsigned long pfn) in update_cached_migrate() argument
466 static bool test_and_set_skip(struct compact_control *cc, struct page *page, in test_and_set_skip() argument
483 struct compact_control *cc) in compact_lock_irqsave() argument
486 if (cc->mode == MIGRATE_ASYNC && !cc->contended) { in compact_lock_irqsave()
490 cc->contended = true; in compact_lock_irqsave()
513 unsigned long flags, bool *locked, struct compact_control *cc) in compact_unlock_should_abort() argument
521 cc->contended = true; in compact_unlock_should_abort()
535 static unsigned long isolate_freepages_block(struct compact_control *cc, in isolate_freepages_block() argument
566 && compact_unlock_should_abort(&cc->zone->lock, flags, in isolate_freepages_block()
567 &locked, cc)) in isolate_freepages_block()
601 locked = compact_lock_irqsave(&cc->zone->lock, in isolate_freepages_block()
602 &flags, cc); in isolate_freepages_block()
617 cc->nr_freepages += isolated; in isolate_freepages_block()
620 if (!strict && cc->nr_migratepages <= cc->nr_freepages) { in isolate_freepages_block()
638 spin_unlock_irqrestore(&cc->zone->lock, flags); in isolate_freepages_block()
661 cc->total_free_scanned += nr_scanned; in isolate_freepages_block()
682 isolate_freepages_range(struct compact_control *cc, in isolate_freepages_range() argument
690 if (block_start_pfn < cc->zone->zone_start_pfn) in isolate_freepages_range()
691 block_start_pfn = cc->zone->zone_start_pfn; in isolate_freepages_range()
714 block_end_pfn, cc->zone)) in isolate_freepages_range()
717 isolated = isolate_freepages_block(cc, &isolate_start_pfn, in isolate_freepages_range()
782 isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, in isolate_migratepages_block() argument
785 pg_data_t *pgdat = cc->zone->zone_pgdat; in isolate_migratepages_block()
803 if (cc->mode == MIGRATE_ASYNC) in isolate_migratepages_block()
814 if (cc->direct_compaction && (cc->mode == MIGRATE_ASYNC)) { in isolate_migratepages_block()
816 next_skip_pfn = block_end_pfn(low_pfn, cc->order); in isolate_migratepages_block()
841 next_skip_pfn = block_end_pfn(low_pfn, cc->order); in isolate_migratepages_block()
851 flags, &locked, cc)) { in isolate_migratepages_block()
869 if (!cc->ignore_skip_hint && get_pageblock_skip(page)) { in isolate_migratepages_block()
948 if (!(cc->gfp_mask & __GFP_FS) && page_mapping(page)) in isolate_migratepages_block()
954 &flags, cc); in isolate_migratepages_block()
959 if (test_and_set_skip(cc, page, low_pfn)) in isolate_migratepages_block()
992 list_add(&page->lru, &cc->migratepages); in isolate_migratepages_block()
993 cc->nr_migratepages++; in isolate_migratepages_block()
1002 if (cc->nr_migratepages == COMPACT_CLUSTER_MAX && in isolate_migratepages_block()
1003 !cc->rescan && !cc->contended) { in isolate_migratepages_block()
1023 putback_movable_pages(&cc->migratepages); in isolate_migratepages_block()
1024 cc->nr_migratepages = 0; in isolate_migratepages_block()
1034 next_skip_pfn += 1UL << cc->order; in isolate_migratepages_block()
1057 if (low_pfn == end_pfn && (!nr_isolated || cc->rescan)) { in isolate_migratepages_block()
1060 update_cached_migrate(cc, low_pfn); in isolate_migratepages_block()
1067 cc->total_migrate_scanned += nr_scanned; in isolate_migratepages_block()
1085 isolate_migratepages_range(struct compact_control *cc, unsigned long start_pfn, in isolate_migratepages_range() argument
1093 if (block_start_pfn < cc->zone->zone_start_pfn) in isolate_migratepages_range()
1094 block_start_pfn = cc->zone->zone_start_pfn; in isolate_migratepages_range()
1104 block_end_pfn, cc->zone)) in isolate_migratepages_range()
1107 pfn = isolate_migratepages_block(cc, pfn, block_end_pfn, in isolate_migratepages_range()
1113 if (cc->nr_migratepages == COMPACT_CLUSTER_MAX) in isolate_migratepages_range()
1123 static bool suitable_migration_source(struct compact_control *cc, in suitable_migration_source() argument
1131 if ((cc->mode != MIGRATE_ASYNC) || !cc->direct_compaction) in suitable_migration_source()
1136 if (cc->migratetype == MIGRATE_MOVABLE) in suitable_migration_source()
1139 return block_mt == cc->migratetype; in suitable_migration_source()
1143 static bool suitable_migration_target(struct compact_control *cc, in suitable_migration_target() argument
1157 if (cc->ignore_block_suitable) in suitable_migration_target()
1169 freelist_scan_limit(struct compact_control *cc) in freelist_scan_limit() argument
1173 return (COMPACT_CLUSTER_MAX >> min(shift, cc->fast_search_fail)) + 1; in freelist_scan_limit()
1180 static inline bool compact_scanners_met(struct compact_control *cc) in compact_scanners_met() argument
1182 return (cc->free_pfn >> pageblock_order) in compact_scanners_met()
1183 <= (cc->migrate_pfn >> pageblock_order); in compact_scanners_met()
1222 fast_isolate_around(struct compact_control *cc, unsigned long pfn, unsigned long nr_isolated) in fast_isolate_around() argument
1228 if (cc->nr_freepages >= cc->nr_migratepages) in fast_isolate_around()
1232 if (cc->direct_compaction && cc->mode == MIGRATE_ASYNC) in fast_isolate_around()
1237 end_pfn = min(pageblock_end_pfn(pfn), zone_end_pfn(cc->zone)) - 1; in fast_isolate_around()
1241 isolate_freepages_block(cc, &start_pfn, pfn, &cc->freepages, 1, false); in fast_isolate_around()
1242 if (cc->nr_freepages >= cc->nr_migratepages) in fast_isolate_around()
1249 isolate_freepages_block(cc, &start_pfn, end_pfn, &cc->freepages, 1, false); in fast_isolate_around()
1252 if (cc->nr_freepages < cc->nr_migratepages) in fast_isolate_around()
1257 static int next_search_order(struct compact_control *cc, int order) in next_search_order() argument
1261 order = cc->order - 1; in next_search_order()
1264 if (order == cc->search_order) { in next_search_order()
1265 cc->search_order--; in next_search_order()
1266 if (cc->search_order < 0) in next_search_order()
1267 cc->search_order = cc->order - 1; in next_search_order()
1275 fast_isolate_freepages(struct compact_control *cc) in fast_isolate_freepages() argument
1277 unsigned int limit = min(1U, freelist_scan_limit(cc) >> 1); in fast_isolate_freepages()
1287 if (cc->order <= 0) in fast_isolate_freepages()
1288 return cc->free_pfn; in fast_isolate_freepages()
1294 if (cc->free_pfn >= cc->zone->compact_init_free_pfn) { in fast_isolate_freepages()
1303 distance = (cc->free_pfn - cc->migrate_pfn); in fast_isolate_freepages()
1304 low_pfn = pageblock_start_pfn(cc->free_pfn - (distance >> 2)); in fast_isolate_freepages()
1305 min_pfn = pageblock_start_pfn(cc->free_pfn - (distance >> 1)); in fast_isolate_freepages()
1314 cc->search_order = min_t(unsigned int, cc->order - 1, cc->search_order); in fast_isolate_freepages()
1316 for (order = cc->search_order; in fast_isolate_freepages()
1318 order = next_search_order(cc, order)) { in fast_isolate_freepages()
1319 struct free_area *area = &cc->zone->free_area[order]; in fast_isolate_freepages()
1328 spin_lock_irqsave(&cc->zone->lock, flags); in fast_isolate_freepages()
1341 cc->fast_search_fail = 0; in fast_isolate_freepages()
1342 cc->search_order = order; in fast_isolate_freepages()
1374 cc->nr_freepages += nr_isolated; in fast_isolate_freepages()
1375 list_add_tail(&page->lru, &cc->freepages); in fast_isolate_freepages()
1379 order = cc->search_order + 1; in fast_isolate_freepages()
1384 spin_unlock_irqrestore(&cc->zone->lock, flags); in fast_isolate_freepages()
1395 cc->fast_search_fail++; in fast_isolate_freepages()
1404 cc->free_pfn = highest; in fast_isolate_freepages()
1406 if (cc->direct_compaction && pfn_valid(min_pfn)) { in fast_isolate_freepages()
1408 cc->free_pfn = min_pfn; in fast_isolate_freepages()
1414 if (highest && highest >= cc->zone->compact_cached_free_pfn) { in fast_isolate_freepages()
1416 cc->zone->compact_cached_free_pfn = highest; in fast_isolate_freepages()
1419 cc->total_free_scanned += nr_scanned; in fast_isolate_freepages()
1421 return cc->free_pfn; in fast_isolate_freepages()
1424 fast_isolate_around(cc, low_pfn, nr_isolated); in fast_isolate_freepages()
1432 static void isolate_freepages(struct compact_control *cc) in isolate_freepages() argument
1434 struct zone *zone = cc->zone; in isolate_freepages()
1440 struct list_head *freelist = &cc->freepages; in isolate_freepages()
1444 isolate_start_pfn = fast_isolate_freepages(cc); in isolate_freepages()
1445 if (cc->nr_freepages) in isolate_freepages()
1459 isolate_start_pfn = cc->free_pfn; in isolate_freepages()
1463 low_pfn = pageblock_end_pfn(cc->migrate_pfn); in isolate_freepages()
1464 stride = cc->mode == MIGRATE_ASYNC ? COMPACT_CLUSTER_MAX : 1; in isolate_freepages()
1490 if (!suitable_migration_target(cc, page)) in isolate_freepages()
1494 if (!isolation_suitable(cc, page)) in isolate_freepages()
1498 nr_isolated = isolate_freepages_block(cc, &isolate_start_pfn, in isolate_freepages()
1503 update_pageblock_skip(cc, page, block_start_pfn); in isolate_freepages()
1506 if (cc->nr_freepages >= cc->nr_migratepages) { in isolate_freepages()
1538 cc->free_pfn = isolate_start_pfn; in isolate_freepages()
1552 struct compact_control *cc = (struct compact_control *)data; in compaction_alloc() local
1555 if (list_empty(&cc->freepages)) { in compaction_alloc()
1556 isolate_freepages(cc); in compaction_alloc()
1558 if (list_empty(&cc->freepages)) in compaction_alloc()
1562 freepage = list_entry(cc->freepages.next, struct page, lru); in compaction_alloc()
1564 cc->nr_freepages--; in compaction_alloc()
1576 struct compact_control *cc = (struct compact_control *)data; in compaction_free() local
1578 list_add(&page->lru, &cc->freepages); in compaction_free()
1579 cc->nr_freepages++; in compaction_free()
1596 update_fast_start_pfn(struct compact_control *cc, unsigned long pfn) in update_fast_start_pfn() argument
1598 if (cc->fast_start_pfn == ULONG_MAX) in update_fast_start_pfn()
1601 if (!cc->fast_start_pfn) in update_fast_start_pfn()
1602 cc->fast_start_pfn = pfn; in update_fast_start_pfn()
1604 cc->fast_start_pfn = min(cc->fast_start_pfn, pfn); in update_fast_start_pfn()
1608 reinit_migrate_pfn(struct compact_control *cc) in reinit_migrate_pfn() argument
1610 if (!cc->fast_start_pfn || cc->fast_start_pfn == ULONG_MAX) in reinit_migrate_pfn()
1611 return cc->migrate_pfn; in reinit_migrate_pfn()
1613 cc->migrate_pfn = cc->fast_start_pfn; in reinit_migrate_pfn()
1614 cc->fast_start_pfn = ULONG_MAX; in reinit_migrate_pfn()
1616 return cc->migrate_pfn; in reinit_migrate_pfn()
1624 static unsigned long fast_find_migrateblock(struct compact_control *cc) in fast_find_migrateblock() argument
1626 unsigned int limit = freelist_scan_limit(cc); in fast_find_migrateblock()
1629 unsigned long pfn = cc->migrate_pfn; in fast_find_migrateblock()
1634 if (cc->ignore_skip_hint) in fast_find_migrateblock()
1642 if (pfn != cc->zone->zone_start_pfn && pfn != pageblock_start_pfn(pfn)) in fast_find_migrateblock()
1650 if (cc->order <= PAGE_ALLOC_COSTLY_ORDER) in fast_find_migrateblock()
1659 if (cc->direct_compaction && cc->migratetype != MIGRATE_MOVABLE) in fast_find_migrateblock()
1668 distance = (cc->free_pfn - cc->migrate_pfn) >> 1; in fast_find_migrateblock()
1669 if (cc->migrate_pfn != cc->zone->zone_start_pfn) in fast_find_migrateblock()
1671 high_pfn = pageblock_start_pfn(cc->migrate_pfn + distance); in fast_find_migrateblock()
1673 for (order = cc->order - 1; in fast_find_migrateblock()
1674 order >= PAGE_ALLOC_COSTLY_ORDER && pfn == cc->migrate_pfn && nr_scanned < limit; in fast_find_migrateblock()
1676 struct free_area *area = &cc->zone->free_area[order]; in fast_find_migrateblock()
1684 spin_lock_irqsave(&cc->zone->lock, flags); in fast_find_migrateblock()
1708 update_fast_start_pfn(cc, free_pfn); in fast_find_migrateblock()
1710 cc->fast_search_fail = 0; in fast_find_migrateblock()
1716 cc->fast_search_fail++; in fast_find_migrateblock()
1721 spin_unlock_irqrestore(&cc->zone->lock, flags); in fast_find_migrateblock()
1724 cc->total_migrate_scanned += nr_scanned; in fast_find_migrateblock()
1730 if (pfn == cc->migrate_pfn) in fast_find_migrateblock()
1731 pfn = reinit_migrate_pfn(cc); in fast_find_migrateblock()
1741 static isolate_migrate_t isolate_migratepages(struct compact_control *cc) in isolate_migratepages() argument
1749 (cc->mode != MIGRATE_SYNC ? ISOLATE_ASYNC_MIGRATE : 0); in isolate_migratepages()
1757 low_pfn = fast_find_migrateblock(cc); in isolate_migratepages()
1759 if (block_start_pfn < cc->zone->zone_start_pfn) in isolate_migratepages()
1760 block_start_pfn = cc->zone->zone_start_pfn; in isolate_migratepages()
1767 fast_find_block = low_pfn != cc->migrate_pfn && !cc->fast_search_fail; in isolate_migratepages()
1776 for (; block_end_pfn <= cc->free_pfn; in isolate_migratepages()
1791 block_end_pfn, cc->zone); in isolate_migratepages()
1803 !fast_find_block && !isolation_suitable(cc, page)) in isolate_migratepages()
1814 if (!suitable_migration_source(cc, page)) { in isolate_migratepages()
1815 update_cached_migrate(cc, block_end_pfn); in isolate_migratepages()
1820 low_pfn = isolate_migratepages_block(cc, low_pfn, in isolate_migratepages()
1835 cc->migrate_pfn = low_pfn; in isolate_migratepages()
1837 return cc->nr_migratepages ? ISOLATE_SUCCESS : ISOLATE_NONE; in isolate_migratepages()
1849 static enum compact_result __compact_finished(struct compact_control *cc) in __compact_finished() argument
1852 const int migratetype = cc->migratetype; in __compact_finished()
1856 if (compact_scanners_met(cc)) { in __compact_finished()
1858 reset_cached_positions(cc->zone); in __compact_finished()
1866 if (cc->direct_compaction) in __compact_finished()
1867 cc->zone->compact_blockskip_flush = true; in __compact_finished()
1869 if (cc->whole_zone) in __compact_finished()
1875 if (is_via_compact_memory(cc->order)) in __compact_finished()
1884 if (!IS_ALIGNED(cc->migrate_pfn, pageblock_nr_pages)) in __compact_finished()
1889 for (order = cc->order; order < MAX_ORDER; order++) { in __compact_finished()
1890 struct free_area *area = &cc->zone->free_area[order]; in __compact_finished()
1922 if (cc->mode == MIGRATE_ASYNC || in __compact_finished()
1923 IS_ALIGNED(cc->migrate_pfn, in __compact_finished()
1933 if (cc->contended || fatal_signal_pending(current)) in __compact_finished()
1939 static enum compact_result compact_finished(struct compact_control *cc) in compact_finished() argument
1943 ret = __compact_finished(cc); in compact_finished()
1944 trace_mm_compaction_finished(cc->zone, cc->order, ret); in compact_finished()
2072 compact_zone(struct compact_control *cc, struct capture_control *capc) in compact_zone() argument
2075 unsigned long start_pfn = cc->zone->zone_start_pfn; in compact_zone()
2076 unsigned long end_pfn = zone_end_pfn(cc->zone); in compact_zone()
2078 const bool sync = cc->mode != MIGRATE_ASYNC; in compact_zone()
2085 cc->total_migrate_scanned = 0; in compact_zone()
2086 cc->total_free_scanned = 0; in compact_zone()
2087 cc->nr_migratepages = 0; in compact_zone()
2088 cc->nr_freepages = 0; in compact_zone()
2089 INIT_LIST_HEAD(&cc->freepages); in compact_zone()
2090 INIT_LIST_HEAD(&cc->migratepages); in compact_zone()
2092 cc->migratetype = gfpflags_to_migratetype(cc->gfp_mask); in compact_zone()
2093 ret = compaction_suitable(cc->zone, cc->order, cc->alloc_flags, in compact_zone()
2094 cc->classzone_idx); in compact_zone()
2106 if (compaction_restarting(cc->zone, cc->order)) in compact_zone()
2107 __reset_isolation_suitable(cc->zone); in compact_zone()
2115 cc->fast_start_pfn = 0; in compact_zone()
2116 if (cc->whole_zone) { in compact_zone()
2117 cc->migrate_pfn = start_pfn; in compact_zone()
2118 cc->free_pfn = pageblock_start_pfn(end_pfn - 1); in compact_zone()
2120 cc->migrate_pfn = cc->zone->compact_cached_migrate_pfn[sync]; in compact_zone()
2121 cc->free_pfn = cc->zone->compact_cached_free_pfn; in compact_zone()
2122 if (cc->free_pfn < start_pfn || cc->free_pfn >= end_pfn) { in compact_zone()
2123 cc->free_pfn = pageblock_start_pfn(end_pfn - 1); in compact_zone()
2124 cc->zone->compact_cached_free_pfn = cc->free_pfn; in compact_zone()
2126 if (cc->migrate_pfn < start_pfn || cc->migrate_pfn >= end_pfn) { in compact_zone()
2127 cc->migrate_pfn = start_pfn; in compact_zone()
2128 cc->zone->compact_cached_migrate_pfn[0] = cc->migrate_pfn; in compact_zone()
2129 cc->zone->compact_cached_migrate_pfn[1] = cc->migrate_pfn; in compact_zone()
2132 if (cc->migrate_pfn <= cc->zone->compact_init_migrate_pfn) in compact_zone()
2133 cc->whole_zone = true; in compact_zone()
2147 cc->zone->compact_cached_migrate_pfn[0] == cc->zone->compact_cached_migrate_pfn[1]; in compact_zone()
2149 trace_mm_compaction_begin(start_pfn, cc->migrate_pfn, in compact_zone()
2150 cc->free_pfn, end_pfn, sync); in compact_zone()
2154 while ((ret = compact_finished(cc)) == COMPACT_CONTINUE) { in compact_zone()
2156 unsigned long start_pfn = cc->migrate_pfn; in compact_zone()
2166 cc->rescan = false; in compact_zone()
2169 cc->rescan = true; in compact_zone()
2172 switch (isolate_migratepages(cc)) { in compact_zone()
2175 putback_movable_pages(&cc->migratepages); in compact_zone()
2176 cc->nr_migratepages = 0; in compact_zone()
2181 cc->zone->compact_cached_migrate_pfn[1] = in compact_zone()
2182 cc->zone->compact_cached_migrate_pfn[0]; in compact_zone()
2197 err = migrate_pages(&cc->migratepages, compaction_alloc, in compact_zone()
2198 compaction_free, (unsigned long)cc, cc->mode, in compact_zone()
2201 trace_mm_compaction_migratepages(cc->nr_migratepages, err, in compact_zone()
2202 &cc->migratepages); in compact_zone()
2205 cc->nr_migratepages = 0; in compact_zone()
2207 putback_movable_pages(&cc->migratepages); in compact_zone()
2212 if (err == -ENOMEM && !compact_scanners_met(cc)) { in compact_zone()
2220 if (cc->direct_compaction && in compact_zone()
2221 (cc->mode == MIGRATE_ASYNC)) { in compact_zone()
2222 cc->migrate_pfn = block_end_pfn( in compact_zone()
2223 cc->migrate_pfn - 1, cc->order); in compact_zone()
2237 if (cc->order > 0 && last_migrated_pfn) { in compact_zone()
2240 block_start_pfn(cc->migrate_pfn, cc->order); in compact_zone()
2245 drain_local_pages(cc->zone); in compact_zone()
2264 if (cc->nr_freepages > 0) { in compact_zone()
2265 unsigned long free_pfn = release_freepages(&cc->freepages); in compact_zone()
2267 cc->nr_freepages = 0; in compact_zone()
2275 if (free_pfn > cc->zone->compact_cached_free_pfn) in compact_zone()
2276 cc->zone->compact_cached_free_pfn = free_pfn; in compact_zone()
2279 count_compact_events(COMPACTMIGRATE_SCANNED, cc->total_migrate_scanned); in compact_zone()
2280 count_compact_events(COMPACTFREE_SCANNED, cc->total_free_scanned); in compact_zone()
2282 trace_mm_compaction_end(start_pfn, cc->migrate_pfn, in compact_zone()
2283 cc->free_pfn, end_pfn, sync, ret); in compact_zone()
2294 struct compact_control cc = { in compact_zone_order() local
2309 .cc = &cc, in compact_zone_order()
2316 ret = compact_zone(&cc, &capc); in compact_zone_order()
2318 VM_BUG_ON(!list_empty(&cc.freepages)); in compact_zone_order()
2319 VM_BUG_ON(!list_empty(&cc.migratepages)); in compact_zone_order()
2414 struct compact_control cc = { in compact_node() local
2429 cc.zone = zone; in compact_node()
2431 compact_zone(&cc, NULL); in compact_node()
2433 VM_BUG_ON(!list_empty(&cc.freepages)); in compact_node()
2434 VM_BUG_ON(!list_empty(&cc.migratepages)); in compact_node()
2528 struct compact_control cc = { in kcompactd_do_work() local
2536 trace_mm_compaction_kcompactd_wake(pgdat->node_id, cc.order, in kcompactd_do_work()
2537 cc.classzone_idx); in kcompactd_do_work()
2540 for (zoneid = 0; zoneid <= cc.classzone_idx; zoneid++) { in kcompactd_do_work()
2547 if (compaction_deferred(zone, cc.order)) in kcompactd_do_work()
2550 if (compaction_suitable(zone, cc.order, 0, zoneid) != in kcompactd_do_work()
2557 cc.zone = zone; in kcompactd_do_work()
2558 status = compact_zone(&cc, NULL); in kcompactd_do_work()
2561 compaction_defer_reset(zone, cc.order, false); in kcompactd_do_work()
2575 defer_compaction(zone, cc.order); in kcompactd_do_work()
2579 cc.total_migrate_scanned); in kcompactd_do_work()
2581 cc.total_free_scanned); in kcompactd_do_work()
2583 VM_BUG_ON(!list_empty(&cc.freepages)); in kcompactd_do_work()
2584 VM_BUG_ON(!list_empty(&cc.migratepages)); in kcompactd_do_work()
2592 if (pgdat->kcompactd_max_order <= cc.order) in kcompactd_do_work()
2594 if (pgdat->kcompactd_classzone_idx >= cc.classzone_idx) in kcompactd_do_work()