Lines Matching refs:zone
293 static bool cond_accept_memory(struct zone *zone, unsigned int order,
319 _deferred_grow_zone(struct zone *zone, unsigned int order) in _deferred_grow_zone() argument
321 return deferred_grow_zone(zone, order); in _deferred_grow_zone()
329 static inline bool _deferred_grow_zone(struct zone *zone, unsigned int order) in _deferred_grow_zone() argument
578 static int page_outside_zone_boundaries(struct zone *zone, struct page *page) in page_outside_zone_boundaries() argument
586 seq = zone_span_seqbegin(zone); in page_outside_zone_boundaries()
587 start_pfn = zone->zone_start_pfn; in page_outside_zone_boundaries()
588 sp = zone->spanned_pages; in page_outside_zone_boundaries()
589 ret = !zone_spans_pfn(zone, pfn); in page_outside_zone_boundaries()
590 } while (zone_span_seqretry(zone, seq)); in page_outside_zone_boundaries()
594 pfn, zone_to_nid(zone), zone->name, in page_outside_zone_boundaries()
603 static bool __maybe_unused bad_range(struct zone *zone, struct page *page) in bad_range() argument
605 if (page_outside_zone_boundaries(zone, page)) in bad_range()
607 if (zone != page_zone(page)) in bad_range()
613 static inline bool __maybe_unused bad_range(struct zone *zone, struct page *page) in bad_range() argument
733 static inline struct capture_control *task_capc(struct zone *zone) in task_capc() argument
740 capc->cc->zone == zone ? capc : NULL; in task_capc()
775 static inline struct capture_control *task_capc(struct zone *zone) in task_capc() argument
788 static inline void account_freepages(struct zone *zone, int nr_pages, in account_freepages() argument
791 lockdep_assert_held(&zone->lock); in account_freepages()
796 __mod_zone_page_state(zone, NR_FREE_PAGES, nr_pages); in account_freepages()
799 __mod_zone_page_state(zone, NR_FREE_CMA_PAGES, nr_pages); in account_freepages()
801 WRITE_ONCE(zone->nr_free_highatomic, in account_freepages()
802 zone->nr_free_highatomic + nr_pages); in account_freepages()
806 static inline void __add_to_free_list(struct page *page, struct zone *zone, in __add_to_free_list() argument
810 struct free_area *area = &zone->free_area[order]; in __add_to_free_list()
824 __mod_zone_page_state(zone, NR_FREE_PAGES_BLOCKS, nr_pages); in __add_to_free_list()
832 static inline void move_to_free_list(struct page *page, struct zone *zone, in move_to_free_list() argument
835 struct free_area *area = &zone->free_area[order]; in move_to_free_list()
845 account_freepages(zone, -nr_pages, old_mt); in move_to_free_list()
846 account_freepages(zone, nr_pages, new_mt); in move_to_free_list()
852 __mod_zone_page_state(zone, NR_FREE_PAGES_BLOCKS, nr_pages); in move_to_free_list()
856 static inline void __del_page_from_free_list(struct page *page, struct zone *zone, in __del_page_from_free_list() argument
872 zone->free_area[order].nr_free--; in __del_page_from_free_list()
875 __mod_zone_page_state(zone, NR_FREE_PAGES_BLOCKS, -nr_pages); in __del_page_from_free_list()
878 static inline void del_page_from_free_list(struct page *page, struct zone *zone, in del_page_from_free_list() argument
881 __del_page_from_free_list(page, zone, order, migratetype); in del_page_from_free_list()
882 account_freepages(zone, -(1 << order), migratetype); in del_page_from_free_list()
943 struct zone *zone, unsigned int order, in __free_one_page() argument
946 struct capture_control *capc = task_capc(zone); in __free_one_page()
952 VM_BUG_ON(!zone_is_initialized(zone)); in __free_one_page()
957 VM_BUG_ON_PAGE(bad_range(zone, page), page); in __free_one_page()
959 account_freepages(zone, 1 << order, migratetype); in __free_one_page()
965 account_freepages(zone, -(1 << order), migratetype); in __free_one_page()
993 clear_page_guard(zone, buddy, order); in __free_one_page()
995 __del_page_from_free_list(buddy, zone, order, buddy_mt); in __free_one_page()
1022 __add_to_free_list(page, zone, order, migratetype, to_tail); in __free_one_page()
1443 static void free_pcppages_bulk(struct zone *zone, int count, in free_pcppages_bulk() argument
1460 spin_lock_irqsave(&zone->lock, flags); in free_pcppages_bulk()
1488 __free_one_page(page, pfn, zone, order, mt, FPI_NONE); in free_pcppages_bulk()
1493 spin_unlock_irqrestore(&zone->lock, flags); in free_pcppages_bulk()
1497 static void split_large_buddy(struct zone *zone, struct page *page, in split_large_buddy() argument
1512 __free_one_page(page, pfn, zone, order, mt, fpi); in split_large_buddy()
1520 static void add_page_to_zone_llist(struct zone *zone, struct page *page, in add_page_to_zone_llist() argument
1526 llist_add(&page->pcp_llist, &zone->trylock_free_pages); in add_page_to_zone_llist()
1529 static void free_one_page(struct zone *zone, struct page *page, in free_one_page() argument
1537 if (!spin_trylock_irqsave(&zone->lock, flags)) { in free_one_page()
1538 add_page_to_zone_llist(zone, page, order); in free_one_page()
1542 spin_lock_irqsave(&zone->lock, flags); in free_one_page()
1546 llhead = &zone->trylock_free_pages; in free_one_page()
1555 split_large_buddy(zone, p, page_to_pfn(p), p_order, fpi_flags); in free_one_page()
1559 split_large_buddy(zone, page, pfn, order, fpi_flags); in free_one_page()
1560 spin_unlock_irqrestore(&zone->lock, flags); in free_one_page()
1569 struct zone *zone = page_zone(page); in __free_pages_ok() local
1572 free_one_page(zone, page, pfn, order, fpi_flags); in __free_pages_ok()
1648 unsigned long end_pfn, struct zone *zone) in __pageblock_pfn_to_page() argument
1663 if (page_zone(start_page) != zone) in __pageblock_pfn_to_page()
1689 static inline unsigned int expand(struct zone *zone, struct page *page, int low, in expand() argument
1698 VM_BUG_ON_PAGE(bad_range(zone, &page[size]), &page[size]); in expand()
1706 if (set_page_guard(zone, &page[size], high)) in expand()
1709 __add_to_free_list(&page[size], zone, high, migratetype, false); in expand()
1717 static __always_inline void page_del_and_expand(struct zone *zone, in page_del_and_expand() argument
1723 __del_page_from_free_list(page, zone, high, migratetype); in page_del_and_expand()
1724 nr_pages -= expand(zone, page, low, high, migratetype); in page_del_and_expand()
1725 account_freepages(zone, -nr_pages, migratetype); in page_del_and_expand()
1881 struct page *__rmqueue_smallest(struct zone *zone, unsigned int order, in __rmqueue_smallest() argument
1890 area = &(zone->free_area[current_order]); in __rmqueue_smallest()
1895 page_del_and_expand(zone, page, order, current_order, in __rmqueue_smallest()
1920 static __always_inline struct page *__rmqueue_cma_fallback(struct zone *zone, in __rmqueue_cma_fallback() argument
1923 return __rmqueue_smallest(zone, order, MIGRATE_CMA); in __rmqueue_cma_fallback()
1926 static inline struct page *__rmqueue_cma_fallback(struct zone *zone, in __rmqueue_cma_fallback() argument
1934 static int __move_freepages_block(struct zone *zone, unsigned long start_pfn, in __move_freepages_block() argument
1953 VM_BUG_ON_PAGE(page_to_nid(page) != zone_to_nid(zone), page); in __move_freepages_block()
1954 VM_BUG_ON_PAGE(page_zone(page) != zone, page); in __move_freepages_block()
1958 move_to_free_list(page, zone, order, old_mt, new_mt); in __move_freepages_block()
1967 static bool prep_move_freepages_block(struct zone *zone, struct page *page, in prep_move_freepages_block() argument
1984 if (!zone_spans_pfn(zone, start)) in prep_move_freepages_block()
1986 if (!zone_spans_pfn(zone, end - 1)) in prep_move_freepages_block()
2017 static int move_freepages_block(struct zone *zone, struct page *page, in move_freepages_block() argument
2023 if (!prep_move_freepages_block(zone, page, &start_pfn, NULL, NULL)) in move_freepages_block()
2026 res = __move_freepages_block(zone, start_pfn, old_mt, new_mt); in move_freepages_block()
2085 static bool __move_freepages_block_isolate(struct zone *zone, in __move_freepages_block_isolate() argument
2098 if (!prep_move_freepages_block(zone, page, &start_pfn, NULL, NULL)) in __move_freepages_block_isolate()
2111 del_page_from_free_list(buddy, zone, order, in __move_freepages_block_isolate()
2114 split_large_buddy(zone, buddy, pfn, order, FPI_NONE); in __move_freepages_block_isolate()
2122 del_page_from_free_list(page, zone, order, in __move_freepages_block_isolate()
2125 split_large_buddy(zone, page, pfn, order, FPI_NONE); in __move_freepages_block_isolate()
2140 __move_freepages_block(zone, start_pfn, from_mt, to_mt); in __move_freepages_block_isolate()
2146 bool pageblock_isolate_and_move_free_pages(struct zone *zone, struct page *page) in pageblock_isolate_and_move_free_pages() argument
2148 return __move_freepages_block_isolate(zone, page, true); in pageblock_isolate_and_move_free_pages()
2151 bool pageblock_unisolate_and_move_free_pages(struct zone *zone, struct page *page) in pageblock_unisolate_and_move_free_pages() argument
2153 return __move_freepages_block_isolate(zone, page, false); in pageblock_unisolate_and_move_free_pages()
2169 static inline bool boost_watermark(struct zone *zone) in boost_watermark() argument
2181 if ((pageblock_nr_pages * 4) > zone_managed_pages(zone)) in boost_watermark()
2184 max_boost = mult_frac(zone->_watermark[WMARK_HIGH], in boost_watermark()
2200 zone->watermark_boost = min(zone->watermark_boost + pageblock_nr_pages, in boost_watermark()
2288 try_to_claim_block(struct zone *zone, struct page *page, in try_to_claim_block() argument
2299 del_page_from_free_list(page, zone, current_order, block_type); in try_to_claim_block()
2301 nr_added = expand(zone, page, order, current_order, start_type); in try_to_claim_block()
2302 account_freepages(zone, nr_added, start_type); in try_to_claim_block()
2311 if (boost_watermark(zone) && (alloc_flags & ALLOC_KSWAPD)) in try_to_claim_block()
2312 set_bit(ZONE_BOOSTED_WATERMARK, &zone->flags); in try_to_claim_block()
2315 if (!prep_move_freepages_block(zone, page, &start_pfn, &free_pages, in try_to_claim_block()
2346 __move_freepages_block(zone, start_pfn, block_type, start_type); in try_to_claim_block()
2348 return __rmqueue_smallest(zone, order, start_type); in try_to_claim_block()
2363 __rmqueue_claim(struct zone *zone, int order, int start_migratetype, in __rmqueue_claim() argument
2387 area = &(zone->free_area[current_order]); in __rmqueue_claim()
2400 page = try_to_claim_block(zone, page, current_order, order, in __rmqueue_claim()
2418 __rmqueue_steal(struct zone *zone, int order, int start_migratetype) in __rmqueue_steal() argument
2426 area = &(zone->free_area[current_order]); in __rmqueue_steal()
2433 page_del_and_expand(zone, page, order, current_order, fallback_mt); in __rmqueue_steal()
2454 __rmqueue(struct zone *zone, unsigned int order, int migratetype, in __rmqueue() argument
2466 zone_page_state(zone, NR_FREE_CMA_PAGES) > in __rmqueue()
2467 zone_page_state(zone, NR_FREE_PAGES) / 2) { in __rmqueue()
2468 page = __rmqueue_cma_fallback(zone, order); in __rmqueue()
2485 page = __rmqueue_smallest(zone, order, migratetype); in __rmqueue()
2491 page = __rmqueue_cma_fallback(zone, order); in __rmqueue()
2499 page = __rmqueue_claim(zone, order, migratetype, alloc_flags); in __rmqueue()
2508 page = __rmqueue_steal(zone, order, migratetype); in __rmqueue()
2523 static int rmqueue_bulk(struct zone *zone, unsigned int order, in rmqueue_bulk() argument
2532 if (!spin_trylock_irqsave(&zone->lock, flags)) in rmqueue_bulk()
2535 spin_lock_irqsave(&zone->lock, flags); in rmqueue_bulk()
2538 struct page *page = __rmqueue(zone, order, migratetype, in rmqueue_bulk()
2555 spin_unlock_irqrestore(&zone->lock, flags); in rmqueue_bulk()
2564 int decay_pcp_high(struct zone *zone, struct per_cpu_pages *pcp) in decay_pcp_high() argument
2586 free_pcppages_bulk(zone, to_drain, pcp, 0); in decay_pcp_high()
2600 void drain_zone_pages(struct zone *zone, struct per_cpu_pages *pcp) in drain_zone_pages() argument
2608 free_pcppages_bulk(zone, to_drain, pcp, 0); in drain_zone_pages()
2617 static void drain_pages_zone(unsigned int cpu, struct zone *zone) in drain_pages_zone() argument
2619 struct per_cpu_pages *pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in drain_pages_zone()
2629 free_pcppages_bulk(zone, to_drain, pcp, 0); in drain_pages_zone()
2641 struct zone *zone; in drain_pages() local
2643 for_each_populated_zone(zone) { in drain_pages()
2644 drain_pages_zone(cpu, zone); in drain_pages()
2651 void drain_local_pages(struct zone *zone) in drain_local_pages() argument
2655 if (zone) in drain_local_pages()
2656 drain_pages_zone(cpu, zone); in drain_local_pages()
2671 static void __drain_all_pages(struct zone *zone, bool force_all_cpus) in __drain_all_pages() argument
2687 if (!zone) in __drain_all_pages()
2700 struct zone *z; in __drain_all_pages()
2709 } else if (zone) { in __drain_all_pages()
2710 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in __drain_all_pages()
2730 if (zone) in __drain_all_pages()
2731 drain_pages_zone(cpu, zone); in __drain_all_pages()
2744 void drain_all_pages(struct zone *zone) in drain_all_pages() argument
2746 __drain_all_pages(zone, false); in drain_all_pages()
2774 static int nr_pcp_high(struct per_cpu_pages *pcp, struct zone *zone, in nr_pcp_high() argument
2796 if (test_bit(ZONE_RECLAIM_ACTIVE, &zone->flags)) { in nr_pcp_high()
2806 if (test_bit(ZONE_BELOW_HIGH, &zone->flags)) { in nr_pcp_high()
2822 static void free_frozen_page_commit(struct zone *zone, in free_frozen_page_commit() argument
2867 high = nr_pcp_high(pcp, zone, batch, free_high); in free_frozen_page_commit()
2869 free_pcppages_bulk(zone, nr_pcp_free(pcp, batch, high, free_high), in free_frozen_page_commit()
2871 if (test_bit(ZONE_BELOW_HIGH, &zone->flags) && in free_frozen_page_commit()
2872 zone_watermark_ok(zone, 0, high_wmark_pages(zone), in free_frozen_page_commit()
2874 clear_bit(ZONE_BELOW_HIGH, &zone->flags); in free_frozen_page_commit()
2886 struct zone *zone; in __free_frozen_pages() local
2905 zone = page_zone(page); in __free_frozen_pages()
2909 free_one_page(zone, page, pfn, order, fpi_flags); in __free_frozen_pages()
2917 add_page_to_zone_llist(zone, page, order); in __free_frozen_pages()
2921 pcp = pcp_spin_trylock(zone->per_cpu_pageset); in __free_frozen_pages()
2923 free_frozen_page_commit(zone, pcp, page, migratetype, order, fpi_flags); in __free_frozen_pages()
2926 free_one_page(zone, page, pfn, order, fpi_flags); in __free_frozen_pages()
2943 struct zone *locked_zone = NULL; in free_unref_folios()
2972 struct zone *zone = folio_zone(folio); in free_unref_folios() local
2981 if (zone != locked_zone || in free_unref_folios()
2995 free_one_page(zone, &folio->page, pfn, in free_unref_folios()
3005 pcp = pcp_spin_trylock(zone->per_cpu_pageset); in free_unref_folios()
3008 free_one_page(zone, &folio->page, pfn, in free_unref_folios()
3012 locked_zone = zone; in free_unref_folios()
3023 free_frozen_page_commit(zone, pcp, &folio->page, migratetype, in free_unref_folios()
3059 struct zone *zone = page_zone(page); in __isolate_free_page() local
3070 watermark = zone->_watermark[WMARK_MIN] + (1UL << order); in __isolate_free_page()
3071 if (!zone_watermark_ok(zone, 0, watermark, 0, ALLOC_CMA)) in __isolate_free_page()
3075 del_page_from_free_list(page, zone, order, mt); in __isolate_free_page()
3090 move_freepages_block(zone, page, mt, in __isolate_free_page()
3109 struct zone *zone = page_zone(page); in __putback_isolated_page() local
3112 lockdep_assert_held(&zone->lock); in __putback_isolated_page()
3115 __free_one_page(page, page_to_pfn(page), zone, order, mt, in __putback_isolated_page()
3122 static inline void zone_statistics(struct zone *preferred_zone, struct zone *z, in zone_statistics()
3146 struct page *rmqueue_buddy(struct zone *preferred_zone, struct zone *zone, in rmqueue_buddy() argument
3156 if (!spin_trylock_irqsave(&zone->lock, flags)) in rmqueue_buddy()
3159 spin_lock_irqsave(&zone->lock, flags); in rmqueue_buddy()
3162 page = __rmqueue_smallest(zone, order, MIGRATE_HIGHATOMIC); in rmqueue_buddy()
3166 page = __rmqueue(zone, order, migratetype, alloc_flags, &rmqm); in rmqueue_buddy()
3175 page = __rmqueue_smallest(zone, order, MIGRATE_HIGHATOMIC); in rmqueue_buddy()
3178 spin_unlock_irqrestore(&zone->lock, flags); in rmqueue_buddy()
3182 spin_unlock_irqrestore(&zone->lock, flags); in rmqueue_buddy()
3186 zone_statistics(preferred_zone, zone, 1); in rmqueue_buddy()
3191 static int nr_pcp_alloc(struct per_cpu_pages *pcp, struct zone *zone, int order) in nr_pcp_alloc() argument
3214 if (high_min != high_max && !test_bit(ZONE_BELOW_HIGH, &zone->flags)) in nr_pcp_alloc()
3243 struct page *__rmqueue_pcplist(struct zone *zone, unsigned int order, in __rmqueue_pcplist() argument
3253 int batch = nr_pcp_alloc(pcp, zone, order); in __rmqueue_pcplist()
3256 alloced = rmqueue_bulk(zone, order, in __rmqueue_pcplist()
3274 static struct page *rmqueue_pcplist(struct zone *preferred_zone, in rmqueue_pcplist()
3275 struct zone *zone, unsigned int order, in rmqueue_pcplist() argument
3285 pcp = pcp_spin_trylock(zone->per_cpu_pageset); in rmqueue_pcplist()
3298 page = __rmqueue_pcplist(zone, order, migratetype, alloc_flags, pcp, list); in rmqueue_pcplist()
3303 zone_statistics(preferred_zone, zone, 1); in rmqueue_pcplist()
3321 struct page *rmqueue(struct zone *preferred_zone, in rmqueue()
3322 struct zone *zone, unsigned int order, in rmqueue() argument
3329 page = rmqueue_pcplist(preferred_zone, zone, order, in rmqueue()
3335 page = rmqueue_buddy(preferred_zone, zone, order, alloc_flags, in rmqueue()
3341 unlikely(test_bit(ZONE_BOOSTED_WATERMARK, &zone->flags))) { in rmqueue()
3342 clear_bit(ZONE_BOOSTED_WATERMARK, &zone->flags); in rmqueue()
3343 wakeup_kswapd(zone, 0, 0, zone_idx(zone)); in rmqueue()
3346 VM_BUG_ON_PAGE(page && bad_range(zone, page), page); in rmqueue()
3356 struct zone *zone) in reserve_highatomic_pageblock() argument
3367 if ((zone_managed_pages(zone) / 100) < pageblock_nr_pages) in reserve_highatomic_pageblock()
3369 max_managed = ALIGN((zone_managed_pages(zone) / 100), pageblock_nr_pages); in reserve_highatomic_pageblock()
3370 if (zone->nr_reserved_highatomic >= max_managed) in reserve_highatomic_pageblock()
3373 spin_lock_irqsave(&zone->lock, flags); in reserve_highatomic_pageblock()
3376 if (zone->nr_reserved_highatomic >= max_managed) in reserve_highatomic_pageblock()
3386 if (move_freepages_block(zone, page, mt, MIGRATE_HIGHATOMIC) == -1) in reserve_highatomic_pageblock()
3388 zone->nr_reserved_highatomic += pageblock_nr_pages; in reserve_highatomic_pageblock()
3391 zone->nr_reserved_highatomic += 1 << order; in reserve_highatomic_pageblock()
3395 spin_unlock_irqrestore(&zone->lock, flags); in reserve_highatomic_pageblock()
3413 struct zone *zone; in unreserve_highatomic_pageblock() local
3418 for_each_zone_zonelist_nodemask(zone, z, zonelist, ac->highest_zoneidx, in unreserve_highatomic_pageblock()
3424 if (!force && zone->nr_reserved_highatomic <= in unreserve_highatomic_pageblock()
3428 spin_lock_irqsave(&zone->lock, flags); in unreserve_highatomic_pageblock()
3430 struct free_area *area = &(zone->free_area[order]); in unreserve_highatomic_pageblock()
3445 if (WARN_ON_ONCE(size > zone->nr_reserved_highatomic)) in unreserve_highatomic_pageblock()
3446 size = zone->nr_reserved_highatomic; in unreserve_highatomic_pageblock()
3447 zone->nr_reserved_highatomic -= size; in unreserve_highatomic_pageblock()
3459 ret = move_freepages_block(zone, page, in unreserve_highatomic_pageblock()
3463 move_to_free_list(page, zone, order, in unreserve_highatomic_pageblock()
3476 spin_unlock_irqrestore(&zone->lock, flags); in unreserve_highatomic_pageblock()
3480 spin_unlock_irqrestore(&zone->lock, flags); in unreserve_highatomic_pageblock()
3486 static inline long __zone_watermark_unusable_free(struct zone *z, in __zone_watermark_unusable_free()
3513 bool __zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark, in __zone_watermark_ok()
3591 bool zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark, in zone_watermark_ok()
3598 static inline bool zone_watermark_fast(struct zone *z, unsigned int order, in zone_watermark_fast()
3646 static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone) in zone_allows_reclaim() argument
3648 return node_distance(zone_to_nid(local_zone), zone_to_nid(zone)) <= in zone_allows_reclaim()
3652 static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone) in zone_allows_reclaim() argument
3667 alloc_flags_nofragment(struct zone *zone, gfp_t gfp_mask) in alloc_flags_nofragment() argument
3683 if (!zone) in alloc_flags_nofragment()
3686 if (zone_idx(zone) != ZONE_NORMAL) in alloc_flags_nofragment()
3695 if (nr_online_nodes > 1 && !populated_zone(--zone)) in alloc_flags_nofragment()
3723 struct zone *zone; in get_page_from_freelist() local
3735 for_next_zone_zonelist_nodemask(zone, z, ac->highest_zoneidx, in get_page_from_freelist()
3742 !__cpuset_zone_allowed(zone, gfp_mask)) in get_page_from_freelist()
3764 if (last_pgdat != zone->zone_pgdat) { in get_page_from_freelist()
3765 last_pgdat = zone->zone_pgdat; in get_page_from_freelist()
3766 last_pgdat_dirty_ok = node_dirty_ok(zone->zone_pgdat); in get_page_from_freelist()
3774 zone != zonelist_zone(ac->preferred_zoneref)) { in get_page_from_freelist()
3783 if (zone_to_nid(zone) != local_nid) { in get_page_from_freelist()
3789 cond_accept_memory(zone, order, alloc_flags); in get_page_from_freelist()
3798 if (test_bit(ZONE_BELOW_HIGH, &zone->flags)) in get_page_from_freelist()
3801 mark = high_wmark_pages(zone); in get_page_from_freelist()
3802 if (zone_watermark_fast(zone, order, mark, in get_page_from_freelist()
3807 set_bit(ZONE_BELOW_HIGH, &zone->flags); in get_page_from_freelist()
3810 mark = wmark_pages(zone, alloc_flags & ALLOC_WMARK_MASK); in get_page_from_freelist()
3811 if (!zone_watermark_fast(zone, order, mark, in get_page_from_freelist()
3816 if (cond_accept_memory(zone, order, alloc_flags)) in get_page_from_freelist()
3824 if (_deferred_grow_zone(zone, order)) in get_page_from_freelist()
3833 !zone_allows_reclaim(zonelist_zone(ac->preferred_zoneref), zone)) in get_page_from_freelist()
3836 ret = node_reclaim(zone->zone_pgdat, gfp_mask, order); in get_page_from_freelist()
3846 if (zone_watermark_ok(zone, order, mark, in get_page_from_freelist()
3855 page = rmqueue(zonelist_zone(ac->preferred_zoneref), zone, order, in get_page_from_freelist()
3865 reserve_highatomic_pageblock(page, order, zone); in get_page_from_freelist()
3869 if (cond_accept_memory(zone, order, alloc_flags)) in get_page_from_freelist()
3874 if (_deferred_grow_zone(zone, order)) in get_page_from_freelist()
4090 struct zone *zone = page_zone(page); in __alloc_pages_direct_compact() local
4092 zone->compact_blockskip_flush = false; in __alloc_pages_direct_compact()
4093 compaction_defer_reset(zone, order, true); in __alloc_pages_direct_compact()
4190 struct zone *zone; in should_compact_retry() local
4202 for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, in should_compact_retry()
4204 if (zone_watermark_ok(zone, 0, min_wmark_pages(zone), in should_compact_retry()
4360 struct zone *zone; in wake_all_kswapds() local
4370 for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, highest_zoneidx, in wake_all_kswapds()
4372 if (!managed_zone(zone)) in wake_all_kswapds()
4374 if (last_pgdat == zone->zone_pgdat) in wake_all_kswapds()
4376 wakeup_kswapd(zone, gfp_mask, reclaim_order, highest_zoneidx); in wake_all_kswapds()
4377 last_pgdat = zone->zone_pgdat; in wake_all_kswapds()
4490 struct zone *zone; in should_reclaim_retry() local
4514 for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, in should_reclaim_retry()
4518 unsigned long min_wmark = min_wmark_pages(zone); in should_reclaim_retry()
4523 !__cpuset_zone_allowed(zone, gfp_mask)) in should_reclaim_retry()
4526 available = reclaimable = zone_reclaimable_pages(zone); in should_reclaim_retry()
4527 available += zone_page_state_snapshot(zone, NR_FREE_PAGES); in should_reclaim_retry()
4533 wmark = __zone_watermark_ok(zone, order, min_wmark, in should_reclaim_retry()
4964 struct zone *zone; in alloc_pages_bulk_noprof() local
5017 for_next_zone_zonelist_nodemask(zone, z, ac.highest_zoneidx, ac.nodemask) { in alloc_pages_bulk_noprof()
5021 !__cpuset_zone_allowed(zone, gfp)) { in alloc_pages_bulk_noprof()
5025 if (nr_online_nodes > 1 && zone != zonelist_zone(ac.preferred_zoneref) && in alloc_pages_bulk_noprof()
5026 zone_to_nid(zone) != zonelist_node_idx(ac.preferred_zoneref)) { in alloc_pages_bulk_noprof()
5030 cond_accept_memory(zone, 0, alloc_flags); in alloc_pages_bulk_noprof()
5032 mark = wmark_pages(zone, alloc_flags & ALLOC_WMARK_MASK) + nr_pages; in alloc_pages_bulk_noprof()
5033 if (zone_watermark_fast(zone, 0, mark, in alloc_pages_bulk_noprof()
5039 if (cond_accept_memory(zone, 0, alloc_flags)) in alloc_pages_bulk_noprof()
5044 if (_deferred_grow_zone(zone, 0)) in alloc_pages_bulk_noprof()
5053 if (unlikely(!zone)) in alloc_pages_bulk_noprof()
5058 pcp = pcp_spin_trylock(zone->per_cpu_pageset); in alloc_pages_bulk_noprof()
5072 page = __rmqueue_pcplist(zone, 0, ac.migratetype, alloc_flags, in alloc_pages_bulk_noprof()
5092 __count_zid_vm_events(PGALLOC, zone_idx(zone), nr_account); in alloc_pages_bulk_noprof()
5093 zone_statistics(zonelist_zone(ac.preferred_zoneref), zone, nr_account); in alloc_pages_bulk_noprof()
5392 struct zone *zone; in nr_free_zone_pages() local
5399 for_each_zone_zonelist(zone, z, zonelist, offset) { in nr_free_zone_pages()
5400 unsigned long size = zone_managed_pages(zone); in nr_free_zone_pages()
5401 unsigned long high = high_wmark_pages(zone); in nr_free_zone_pages()
5424 static void zoneref_set_zone(struct zone *zone, struct zoneref *zoneref) in zoneref_set_zone() argument
5426 zoneref->zone = zone; in zoneref_set_zone()
5427 zoneref->zone_idx = zone_idx(zone); in zoneref_set_zone()
5437 struct zone *zone; in build_zonerefs_node() local
5443 zone = pgdat->node_zones + zone_type; in build_zonerefs_node()
5444 if (populated_zone(zone)) { in build_zonerefs_node()
5445 zoneref_set_zone(zone, &zonerefs[nr_zones++]); in build_zonerefs_node()
5569 zonerefs->zone = NULL; in build_zonelists_in_node_order()
5584 zonerefs->zone = NULL; in build_thisnode_zonelists()
5653 zonerefs->zone = NULL; in build_zonelists()
5806 static int zone_batchsize(struct zone *zone) in zone_batchsize() argument
5817 batch = min(zone_managed_pages(zone) >> 10, SZ_1M / PAGE_SIZE); in zone_batchsize()
5855 static int zone_highsize(struct zone *zone, int batch, int cpu_online, in zone_highsize() argument
5869 total_pages = low_wmark_pages(zone); in zone_highsize()
5876 total_pages = zone_managed_pages(zone) / high_fraction; in zone_highsize()
5887 nr_split_cpus = cpumask_weight(cpumask_of_node(zone_to_nid(zone))) + cpu_online; in zone_highsize()
5952 static void __zone_set_pageset_high_and_batch(struct zone *zone, unsigned long high_min, in __zone_set_pageset_high_and_batch() argument
5959 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in __zone_set_pageset_high_and_batch()
5968 static void zone_set_pageset_high_and_batch(struct zone *zone, int cpu_online) in zone_set_pageset_high_and_batch() argument
5972 new_batch = max(1, zone_batchsize(zone)); in zone_set_pageset_high_and_batch()
5974 new_high_min = zone_highsize(zone, new_batch, cpu_online, in zone_set_pageset_high_and_batch()
5982 new_high_min = zone_highsize(zone, new_batch, cpu_online, 0); in zone_set_pageset_high_and_batch()
5983 new_high_max = zone_highsize(zone, new_batch, cpu_online, in zone_set_pageset_high_and_batch()
5987 if (zone->pageset_high_min == new_high_min && in zone_set_pageset_high_and_batch()
5988 zone->pageset_high_max == new_high_max && in zone_set_pageset_high_and_batch()
5989 zone->pageset_batch == new_batch) in zone_set_pageset_high_and_batch()
5992 zone->pageset_high_min = new_high_min; in zone_set_pageset_high_and_batch()
5993 zone->pageset_high_max = new_high_max; in zone_set_pageset_high_and_batch()
5994 zone->pageset_batch = new_batch; in zone_set_pageset_high_and_batch()
5996 __zone_set_pageset_high_and_batch(zone, new_high_min, new_high_max, in zone_set_pageset_high_and_batch()
6000 void __meminit setup_zone_pageset(struct zone *zone) in setup_zone_pageset() argument
6006 zone->per_cpu_zonestats = alloc_percpu(struct per_cpu_zonestat); in setup_zone_pageset()
6008 zone->per_cpu_pageset = alloc_percpu(struct per_cpu_pages); in setup_zone_pageset()
6013 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in setup_zone_pageset()
6014 pzstats = per_cpu_ptr(zone->per_cpu_zonestats, cpu); in setup_zone_pageset()
6018 zone_set_pageset_high_and_batch(zone, 0); in setup_zone_pageset()
6025 static void zone_pcp_update(struct zone *zone, int cpu_online) in zone_pcp_update() argument
6028 zone_set_pageset_high_and_batch(zone, cpu_online); in zone_pcp_update()
6032 static void zone_pcp_update_cacheinfo(struct zone *zone, unsigned int cpu) in zone_pcp_update_cacheinfo() argument
6037 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in zone_pcp_update_cacheinfo()
6056 struct zone *zone; in setup_pcp_cacheinfo() local
6058 for_each_populated_zone(zone) in setup_pcp_cacheinfo()
6059 zone_pcp_update_cacheinfo(zone, cpu); in setup_pcp_cacheinfo()
6069 struct zone *zone; in setup_per_cpu_pageset() local
6072 for_each_populated_zone(zone) in setup_per_cpu_pageset()
6073 setup_zone_pageset(zone); in setup_per_cpu_pageset()
6094 __meminit void zone_pcp_init(struct zone *zone) in zone_pcp_init() argument
6101 zone->per_cpu_pageset = &boot_pageset; in zone_pcp_init()
6102 zone->per_cpu_zonestats = &boot_zonestats; in zone_pcp_init()
6103 zone->pageset_high_min = BOOT_PAGESET_HIGH; in zone_pcp_init()
6104 zone->pageset_high_max = BOOT_PAGESET_HIGH; in zone_pcp_init()
6105 zone->pageset_batch = BOOT_PAGESET_BATCH; in zone_pcp_init()
6107 if (populated_zone(zone)) in zone_pcp_init()
6108 pr_debug(" %s zone: %lu pages, LIFO batch:%u\n", zone->name, in zone_pcp_init()
6109 zone->present_pages, zone_batchsize(zone)); in zone_pcp_init()
6170 struct zone *zone; in page_alloc_cpu_dead() local
6193 for_each_populated_zone(zone) in page_alloc_cpu_dead()
6194 zone_pcp_update(zone, 0); in page_alloc_cpu_dead()
6201 struct zone *zone; in page_alloc_cpu_online() local
6203 for_each_populated_zone(zone) in page_alloc_cpu_online()
6204 zone_pcp_update(zone, 1); in page_alloc_cpu_online()
6234 struct zone *zone = pgdat->node_zones + i; in calculate_totalreserve_pages() local
6236 unsigned long managed_pages = zone_managed_pages(zone); in calculate_totalreserve_pages()
6240 if (zone->lowmem_reserve[j] > max) in calculate_totalreserve_pages()
6241 max = zone->lowmem_reserve[j]; in calculate_totalreserve_pages()
6245 max += high_wmark_pages(zone); in calculate_totalreserve_pages()
6272 struct zone *zone = &pgdat->node_zones[i]; in setup_per_zone_lowmem_reserve() local
6274 bool clear = !ratio || !zone_managed_pages(zone); in setup_per_zone_lowmem_reserve()
6278 struct zone *upper_zone = &pgdat->node_zones[j]; in setup_per_zone_lowmem_reserve()
6283 zone->lowmem_reserve[j] = 0; in setup_per_zone_lowmem_reserve()
6285 zone->lowmem_reserve[j] = managed_pages / ratio; in setup_per_zone_lowmem_reserve()
6286 trace_mm_setup_per_zone_lowmem_reserve(zone, upper_zone, in setup_per_zone_lowmem_reserve()
6287 zone->lowmem_reserve[j]); in setup_per_zone_lowmem_reserve()
6300 struct zone *zone; in __setup_per_zone_wmarks() local
6304 for_each_zone(zone) { in __setup_per_zone_wmarks()
6305 if (!is_highmem(zone) && zone_idx(zone) != ZONE_MOVABLE) in __setup_per_zone_wmarks()
6306 lowmem_pages += zone_managed_pages(zone); in __setup_per_zone_wmarks()
6309 for_each_zone(zone) { in __setup_per_zone_wmarks()
6312 spin_lock_irqsave(&zone->lock, flags); in __setup_per_zone_wmarks()
6313 tmp = (u64)pages_min * zone_managed_pages(zone); in __setup_per_zone_wmarks()
6315 if (is_highmem(zone) || zone_idx(zone) == ZONE_MOVABLE) { in __setup_per_zone_wmarks()
6327 min_pages = zone_managed_pages(zone) / 1024; in __setup_per_zone_wmarks()
6329 zone->_watermark[WMARK_MIN] = min_pages; in __setup_per_zone_wmarks()
6335 zone->_watermark[WMARK_MIN] = tmp; in __setup_per_zone_wmarks()
6344 mult_frac(zone_managed_pages(zone), in __setup_per_zone_wmarks()
6347 zone->watermark_boost = 0; in __setup_per_zone_wmarks()
6348 zone->_watermark[WMARK_LOW] = min_wmark_pages(zone) + tmp; in __setup_per_zone_wmarks()
6349 zone->_watermark[WMARK_HIGH] = low_wmark_pages(zone) + tmp; in __setup_per_zone_wmarks()
6350 zone->_watermark[WMARK_PROMO] = high_wmark_pages(zone) + tmp; in __setup_per_zone_wmarks()
6351 trace_mm_setup_per_zone_wmarks(zone); in __setup_per_zone_wmarks()
6353 spin_unlock_irqrestore(&zone->lock, flags); in __setup_per_zone_wmarks()
6369 struct zone *zone; in setup_per_zone_wmarks() local
6380 for_each_zone(zone) in setup_per_zone_wmarks()
6381 zone_pcp_update(zone, 0); in setup_per_zone_wmarks()
6482 struct zone *zone; in setup_min_unmapped_ratio() local
6487 for_each_zone(zone) in setup_min_unmapped_ratio()
6488 zone->zone_pgdat->min_unmapped_pages += (zone_managed_pages(zone) * in setup_min_unmapped_ratio()
6510 struct zone *zone; in setup_min_slab_ratio() local
6515 for_each_zone(zone) in setup_min_slab_ratio()
6516 zone->zone_pgdat->min_slab_pages += (zone_managed_pages(zone) * in setup_min_slab_ratio()
6568 struct zone *zone; in percpu_pagelist_high_fraction_sysctl_handler() local
6591 for_each_populated_zone(zone) in percpu_pagelist_high_fraction_sysctl_handler()
6592 zone_set_pageset_high_and_batch(zone, 0); in percpu_pagelist_high_fraction_sysctl_handler()
6707 .nid = zone_to_nid(cc->zone), in __alloc_contig_migrate_range()
6732 nr_reclaimed = reclaim_clean_pages_from_list(cc->zone, in __alloc_contig_migrate_range()
6846 .zone = page_zone(pfn_to_page(start)), in alloc_contig_range_noprof()
6886 drain_all_pages(cc.zone); in alloc_contig_range_noprof()
6979 static bool pfn_range_valid_contig(struct zone *z, unsigned long start_pfn, in pfn_range_valid_contig()
7002 static bool zone_spans_last_pfn(const struct zone *zone, in zone_spans_last_pfn() argument
7007 return zone_spans_pfn(zone, last_pfn); in zone_spans_last_pfn()
7038 struct zone *zone; in alloc_contig_pages_noprof() local
7042 for_each_zone_zonelist_nodemask(zone, z, zonelist, in alloc_contig_pages_noprof()
7044 spin_lock_irqsave(&zone->lock, flags); in alloc_contig_pages_noprof()
7046 pfn = ALIGN(zone->zone_start_pfn, nr_pages); in alloc_contig_pages_noprof()
7047 while (zone_spans_last_pfn(zone, pfn, nr_pages)) { in alloc_contig_pages_noprof()
7048 if (pfn_range_valid_contig(zone, pfn, nr_pages)) { in alloc_contig_pages_noprof()
7056 spin_unlock_irqrestore(&zone->lock, flags); in alloc_contig_pages_noprof()
7061 spin_lock_irqsave(&zone->lock, flags); in alloc_contig_pages_noprof()
7065 spin_unlock_irqrestore(&zone->lock, flags); in alloc_contig_pages_noprof()
7105 void zone_pcp_disable(struct zone *zone) in zone_pcp_disable() argument
7108 __zone_set_pageset_high_and_batch(zone, 0, 0, 1); in zone_pcp_disable()
7109 __drain_all_pages(zone, true); in zone_pcp_disable()
7112 void zone_pcp_enable(struct zone *zone) in zone_pcp_enable() argument
7114 __zone_set_pageset_high_and_batch(zone, zone->pageset_high_min, in zone_pcp_enable()
7115 zone->pageset_high_max, zone->pageset_batch); in zone_pcp_enable()
7119 void zone_pcp_reset(struct zone *zone) in zone_pcp_reset() argument
7124 if (zone->per_cpu_pageset != &boot_pageset) { in zone_pcp_reset()
7126 pzstats = per_cpu_ptr(zone->per_cpu_zonestats, cpu); in zone_pcp_reset()
7127 drain_zonestat(zone, pzstats); in zone_pcp_reset()
7129 free_percpu(zone->per_cpu_pageset); in zone_pcp_reset()
7130 zone->per_cpu_pageset = &boot_pageset; in zone_pcp_reset()
7131 if (zone->per_cpu_zonestats != &boot_zonestats) { in zone_pcp_reset()
7132 free_percpu(zone->per_cpu_zonestats); in zone_pcp_reset()
7133 zone->per_cpu_zonestats = &boot_zonestats; in zone_pcp_reset()
7153 struct zone *zone; in __offline_isolated_pages() local
7157 zone = page_zone(pfn_to_page(pfn)); in __offline_isolated_pages()
7158 spin_lock_irqsave(&zone->lock, flags); in __offline_isolated_pages()
7185 del_page_from_free_list(page, zone, order, MIGRATE_ISOLATE); in __offline_isolated_pages()
7188 spin_unlock_irqrestore(&zone->lock, flags); in __offline_isolated_pages()
7215 static inline void add_to_free_list(struct page *page, struct zone *zone, in add_to_free_list() argument
7219 __add_to_free_list(page, zone, order, migratetype, tail); in add_to_free_list()
7220 account_freepages(zone, 1 << order, migratetype); in add_to_free_list()
7227 static void break_down_buddy_pages(struct zone *zone, struct page *page, in break_down_buddy_pages() argument
7245 if (set_page_guard(zone, current_buddy, high)) in break_down_buddy_pages()
7248 add_to_free_list(current_buddy, zone, high, migratetype, false); in break_down_buddy_pages()
7258 struct zone *zone = page_zone(page); in take_page_off_buddy() local
7264 spin_lock_irqsave(&zone->lock, flags); in take_page_off_buddy()
7274 del_page_from_free_list(page_head, zone, page_order, in take_page_off_buddy()
7276 break_down_buddy_pages(zone, page_head, page, 0, in take_page_off_buddy()
7285 spin_unlock_irqrestore(&zone->lock, flags); in take_page_off_buddy()
7294 struct zone *zone = page_zone(page); in put_page_back_buddy() local
7298 spin_lock_irqsave(&zone->lock, flags); in put_page_back_buddy()
7304 __free_one_page(page, pfn, zone, 0, migratetype, FPI_NONE); in put_page_back_buddy()
7309 spin_unlock_irqrestore(&zone->lock, flags); in put_page_back_buddy()
7321 struct zone *zone = &pgdat->node_zones[ZONE_DMA]; in has_managed_dma() local
7323 if (managed_zone(zone)) in has_managed_dma()
7355 static void __accept_page(struct zone *zone, unsigned long *flags, in __accept_page() argument
7359 account_freepages(zone, -MAX_ORDER_NR_PAGES, MIGRATE_MOVABLE); in __accept_page()
7360 __mod_zone_page_state(zone, NR_UNACCEPTED, -MAX_ORDER_NR_PAGES); in __accept_page()
7362 spin_unlock_irqrestore(&zone->lock, *flags); in __accept_page()
7371 struct zone *zone = page_zone(page); in accept_page() local
7374 spin_lock_irqsave(&zone->lock, flags); in accept_page()
7376 spin_unlock_irqrestore(&zone->lock, flags); in accept_page()
7381 __accept_page(zone, &flags, page); in accept_page()
7384 static bool try_to_accept_memory_one(struct zone *zone) in try_to_accept_memory_one() argument
7389 spin_lock_irqsave(&zone->lock, flags); in try_to_accept_memory_one()
7390 page = list_first_entry_or_null(&zone->unaccepted_pages, in try_to_accept_memory_one()
7393 spin_unlock_irqrestore(&zone->lock, flags); in try_to_accept_memory_one()
7398 __accept_page(zone, &flags, page); in try_to_accept_memory_one()
7403 static bool cond_accept_memory(struct zone *zone, unsigned int order, in cond_accept_memory() argument
7409 if (list_empty(&zone->unaccepted_pages)) in cond_accept_memory()
7416 wmark = promo_wmark_pages(zone); in cond_accept_memory()
7424 return try_to_accept_memory_one(zone); in cond_accept_memory()
7428 (zone_page_state(zone, NR_FREE_PAGES) - in cond_accept_memory()
7429 __zone_watermark_unusable_free(zone, order, 0) - in cond_accept_memory()
7430 zone_page_state(zone, NR_UNACCEPTED)); in cond_accept_memory()
7433 if (!try_to_accept_memory_one(zone)) in cond_accept_memory()
7444 struct zone *zone = page_zone(page); in __free_unaccepted() local
7450 spin_lock_irqsave(&zone->lock, flags); in __free_unaccepted()
7451 list_add_tail(&page->lru, &zone->unaccepted_pages); in __free_unaccepted()
7452 account_freepages(zone, MAX_ORDER_NR_PAGES, MIGRATE_MOVABLE); in __free_unaccepted()
7453 __mod_zone_page_state(zone, NR_UNACCEPTED, MAX_ORDER_NR_PAGES); in __free_unaccepted()
7455 spin_unlock_irqrestore(&zone->lock, flags); in __free_unaccepted()
7467 static bool cond_accept_memory(struct zone *zone, unsigned int order, in cond_accept_memory() argument