Lines Matching refs:zone
152 struct zone *zone; member
572 static int page_outside_zone_boundaries(struct zone *zone, struct page *page) in page_outside_zone_boundaries() argument
580 seq = zone_span_seqbegin(zone); in page_outside_zone_boundaries()
581 start_pfn = zone->zone_start_pfn; in page_outside_zone_boundaries()
582 sp = zone->spanned_pages; in page_outside_zone_boundaries()
583 if (!zone_spans_pfn(zone, pfn)) in page_outside_zone_boundaries()
585 } while (zone_span_seqretry(zone, seq)); in page_outside_zone_boundaries()
589 pfn, zone_to_nid(zone), zone->name, in page_outside_zone_boundaries()
595 static int page_is_consistent(struct zone *zone, struct page *page) in page_is_consistent() argument
597 if (zone != page_zone(page)) in page_is_consistent()
605 static int __maybe_unused bad_range(struct zone *zone, struct page *page) in bad_range() argument
607 if (page_outside_zone_boundaries(zone, page)) in bad_range()
609 if (!page_is_consistent(zone, page)) in bad_range()
615 static inline int __maybe_unused bad_range(struct zone *zone, struct page *page) in bad_range() argument
779 static inline bool set_page_guard(struct zone *zone, struct page *page, in set_page_guard() argument
792 __mod_zone_freepage_state(zone, -(1 << order), migratetype); in set_page_guard()
797 static inline void clear_page_guard(struct zone *zone, struct page *page, in clear_page_guard() argument
807 __mod_zone_freepage_state(zone, (1 << order), migratetype); in clear_page_guard()
810 static inline bool set_page_guard(struct zone *zone, struct page *page, in set_page_guard() argument
812 static inline void clear_page_guard(struct zone *zone, struct page *page, in clear_page_guard() argument
911 static inline struct capture_control *task_capc(struct zone *zone) in task_capc() argument
918 capc->cc->zone == zone ? capc : NULL; in task_capc()
947 static inline struct capture_control *task_capc(struct zone *zone) in task_capc() argument
961 static inline void add_to_free_list(struct page *page, struct zone *zone, in add_to_free_list() argument
964 struct free_area *area = &zone->free_area[order]; in add_to_free_list()
971 static inline void add_to_free_list_tail(struct page *page, struct zone *zone, in add_to_free_list_tail() argument
974 struct free_area *area = &zone->free_area[order]; in add_to_free_list_tail()
985 static inline void move_to_free_list(struct page *page, struct zone *zone, in move_to_free_list() argument
988 struct free_area *area = &zone->free_area[order]; in move_to_free_list()
993 static inline void del_page_from_free_list(struct page *page, struct zone *zone, in del_page_from_free_list() argument
1003 zone->free_area[order].nr_free--; in del_page_from_free_list()
1058 struct zone *zone, unsigned int order, in __free_one_page() argument
1061 struct capture_control *capc = task_capc(zone); in __free_one_page()
1070 VM_BUG_ON(!zone_is_initialized(zone)); in __free_one_page()
1075 __mod_zone_freepage_state(zone, 1 << order, migratetype); in __free_one_page()
1078 VM_BUG_ON_PAGE(bad_range(zone, page), page); in __free_one_page()
1083 __mod_zone_freepage_state(zone, -(1 << order), in __free_one_page()
1097 clear_page_guard(zone, buddy, order, migratetype); in __free_one_page()
1099 del_page_from_free_list(buddy, zone, order); in __free_one_page()
1114 if (unlikely(has_isolate_pageblock(zone))) { in __free_one_page()
1141 add_to_free_list_tail(page, zone, order, migratetype); in __free_one_page()
1143 add_to_free_list(page, zone, order, migratetype); in __free_one_page()
1434 static void free_pcppages_bulk(struct zone *zone, int count, in free_pcppages_bulk() argument
1511 spin_lock(&zone->lock); in free_pcppages_bulk()
1512 isolated_pageblocks = has_isolate_pageblock(zone); in free_pcppages_bulk()
1531 __free_one_page(page, page_to_pfn(page), zone, order, mt, FPI_NONE); in free_pcppages_bulk()
1534 spin_unlock(&zone->lock); in free_pcppages_bulk()
1537 static void free_one_page(struct zone *zone, in free_one_page() argument
1544 spin_lock_irqsave(&zone->lock, flags); in free_one_page()
1545 if (unlikely(has_isolate_pageblock(zone) || in free_one_page()
1549 __free_one_page(page, pfn, zone, order, migratetype, fpi_flags); in free_one_page()
1550 spin_unlock_irqrestore(&zone->lock, flags); in free_one_page()
1554 unsigned long zone, int nid) in __init_single_page() argument
1557 set_page_links(page, zone, nid, pfn); in __init_single_page()
1566 if (!is_highmem_idx(zone)) in __init_single_page()
1584 struct zone *zone = &pgdat->node_zones[zid]; in init_reserved_page() local
1586 if (zone_spans_pfn(zone, pfn)) in init_reserved_page()
1633 struct zone *zone = page_zone(page); in __free_pages_ok() local
1640 spin_lock_irqsave(&zone->lock, flags); in __free_pages_ok()
1641 if (unlikely(has_isolate_pageblock(zone) || in __free_pages_ok()
1645 __free_one_page(page, pfn, zone, order, migratetype, fpi_flags); in __free_pages_ok()
1646 spin_unlock_irqrestore(&zone->lock, flags); in __free_pages_ok()
1756 unsigned long end_pfn, struct zone *zone) in __pageblock_pfn_to_page() argument
1771 if (page_zone(start_page) != zone) in __pageblock_pfn_to_page()
1783 void set_zone_contiguous(struct zone *zone) in set_zone_contiguous() argument
1785 unsigned long block_start_pfn = zone->zone_start_pfn; in set_zone_contiguous()
1789 for (; block_start_pfn < zone_end_pfn(zone); in set_zone_contiguous()
1793 block_end_pfn = min(block_end_pfn, zone_end_pfn(zone)); in set_zone_contiguous()
1796 block_end_pfn, zone)) in set_zone_contiguous()
1802 zone->contiguous = true; in set_zone_contiguous()
1805 void clear_zone_contiguous(struct zone *zone) in clear_zone_contiguous() argument
1807 zone->contiguous = false; in clear_zone_contiguous()
1894 static unsigned long __init deferred_init_pages(struct zone *zone, in deferred_init_pages() argument
1899 int nid = zone_to_nid(zone); in deferred_init_pages()
1901 int zid = zone_idx(zone); in deferred_init_pages()
1926 deferred_init_mem_pfn_range_in_zone(u64 *i, struct zone *zone, in deferred_init_mem_pfn_range_in_zone() argument
1937 for_each_free_mem_pfn_range_in_zone(j, zone, spfn, epfn) { in deferred_init_mem_pfn_range_in_zone()
1960 deferred_init_maxorder(u64 *i, struct zone *zone, unsigned long *start_pfn, in deferred_init_maxorder() argument
1969 for_each_free_mem_pfn_range_in_zone_from(j, zone, start_pfn, end_pfn) { in deferred_init_maxorder()
1976 nr_pages += deferred_init_pages(zone, *start_pfn, t); in deferred_init_maxorder()
1987 for_each_free_mem_pfn_range_in_zone_from(j, zone, &spfn, &epfn) { in deferred_init_maxorder()
2008 struct zone *zone = arg; in deferred_init_memmap_chunk() local
2011 deferred_init_mem_pfn_range_in_zone(&i, zone, &spfn, &epfn, start_pfn); in deferred_init_memmap_chunk()
2018 deferred_init_maxorder(&i, zone, &spfn, &epfn); in deferred_init_memmap_chunk()
2038 struct zone *zone; in deferred_init_memmap() local
2068 zone = pgdat->node_zones + zid; in deferred_init_memmap()
2069 if (first_init_pfn < zone_end_pfn(zone)) in deferred_init_memmap()
2074 if (!deferred_init_mem_pfn_range_in_zone(&i, zone, &spfn, &epfn, in deferred_init_memmap()
2084 .fn_arg = zone, in deferred_init_memmap()
2093 deferred_init_mem_pfn_range_in_zone(&i, zone, &spfn, &epfn, in deferred_init_memmap()
2098 WARN_ON(++zid < MAX_NR_ZONES && populated_zone(++zone)); in deferred_init_memmap()
2123 deferred_grow_zone(struct zone *zone, unsigned int order) in deferred_grow_zone() argument
2126 pg_data_t *pgdat = zone->zone_pgdat; in deferred_grow_zone()
2133 if (zone_end_pfn(zone) != pgdat_end_pfn(pgdat)) in deferred_grow_zone()
2148 if (!deferred_init_mem_pfn_range_in_zone(&i, zone, &spfn, &epfn, in deferred_grow_zone()
2165 nr_pages += deferred_init_maxorder(&i, zone, &spfn, &epfn); in deferred_grow_zone()
2190 _deferred_grow_zone(struct zone *zone, unsigned int order) in _deferred_grow_zone() argument
2192 return deferred_grow_zone(zone, order); in _deferred_grow_zone()
2199 struct zone *zone; in page_alloc_init_late() local
2231 for_each_populated_zone(zone) in page_alloc_init_late()
2232 set_zone_contiguous(zone); in page_alloc_init_late()
2281 static inline void expand(struct zone *zone, struct page *page, in expand() argument
2289 VM_BUG_ON_PAGE(bad_range(zone, &page[size]), &page[size]); in expand()
2297 if (set_page_guard(zone, &page[size], high, migratetype)) in expand()
2300 add_to_free_list(&page[size], zone, high, migratetype); in expand()
2440 struct page *__rmqueue_smallest(struct zone *zone, unsigned int order, in __rmqueue_smallest() argument
2449 area = &(zone->free_area[current_order]); in __rmqueue_smallest()
2453 del_page_from_free_list(page, zone, current_order); in __rmqueue_smallest()
2454 expand(zone, page, order, current_order, migratetype); in __rmqueue_smallest()
2480 static __always_inline struct page *__rmqueue_cma_fallback(struct zone *zone, in __rmqueue_cma_fallback() argument
2483 return __rmqueue_smallest(zone, order, MIGRATE_CMA); in __rmqueue_cma_fallback()
2486 static inline struct page *__rmqueue_cma_fallback(struct zone *zone, in __rmqueue_cma_fallback() argument
2495 static int move_freepages(struct zone *zone, in move_freepages() argument
2520 VM_BUG_ON_PAGE(page_to_nid(page) != zone_to_nid(zone), page); in move_freepages()
2521 VM_BUG_ON_PAGE(page_zone(page) != zone, page); in move_freepages()
2524 move_to_free_list(page, zone, order, migratetype); in move_freepages()
2532 int move_freepages_block(struct zone *zone, struct page *page, in move_freepages_block() argument
2545 if (!zone_spans_pfn(zone, start_pfn)) in move_freepages_block()
2547 if (!zone_spans_pfn(zone, end_pfn)) in move_freepages_block()
2550 return move_freepages(zone, start_pfn, end_pfn, migratetype, in move_freepages_block()
2598 static inline bool boost_watermark(struct zone *zone) in boost_watermark() argument
2610 if ((pageblock_nr_pages * 4) > zone_managed_pages(zone)) in boost_watermark()
2613 max_boost = mult_frac(zone->_watermark[WMARK_HIGH], in boost_watermark()
2629 zone->watermark_boost = min(zone->watermark_boost + pageblock_nr_pages, in boost_watermark()
2643 static void steal_suitable_fallback(struct zone *zone, struct page *page, in steal_suitable_fallback() argument
2670 if (boost_watermark(zone) && (alloc_flags & ALLOC_KSWAPD)) in steal_suitable_fallback()
2671 set_bit(ZONE_BOOSTED_WATERMARK, &zone->flags); in steal_suitable_fallback()
2677 free_pages = move_freepages_block(zone, page, start_type, in steal_suitable_fallback()
2716 move_to_free_list(page, zone, current_order, start_type); in steal_suitable_fallback()
2760 static void reserve_highatomic_pageblock(struct page *page, struct zone *zone, in reserve_highatomic_pageblock() argument
2770 max_managed = (zone_managed_pages(zone) / 100) + pageblock_nr_pages; in reserve_highatomic_pageblock()
2771 if (zone->nr_reserved_highatomic >= max_managed) in reserve_highatomic_pageblock()
2774 spin_lock_irqsave(&zone->lock, flags); in reserve_highatomic_pageblock()
2777 if (zone->nr_reserved_highatomic >= max_managed) in reserve_highatomic_pageblock()
2784 zone->nr_reserved_highatomic += pageblock_nr_pages; in reserve_highatomic_pageblock()
2786 move_freepages_block(zone, page, MIGRATE_HIGHATOMIC, NULL); in reserve_highatomic_pageblock()
2790 spin_unlock_irqrestore(&zone->lock, flags); in reserve_highatomic_pageblock()
2808 struct zone *zone; in unreserve_highatomic_pageblock() local
2813 for_each_zone_zonelist_nodemask(zone, z, zonelist, ac->highest_zoneidx, in unreserve_highatomic_pageblock()
2819 if (!force && zone->nr_reserved_highatomic <= in unreserve_highatomic_pageblock()
2823 spin_lock_irqsave(&zone->lock, flags); in unreserve_highatomic_pageblock()
2825 struct free_area *area = &(zone->free_area[order]); in unreserve_highatomic_pageblock()
2846 zone->nr_reserved_highatomic -= min( in unreserve_highatomic_pageblock()
2848 zone->nr_reserved_highatomic); in unreserve_highatomic_pageblock()
2861 ret = move_freepages_block(zone, page, ac->migratetype, in unreserve_highatomic_pageblock()
2864 spin_unlock_irqrestore(&zone->lock, flags); in unreserve_highatomic_pageblock()
2868 spin_unlock_irqrestore(&zone->lock, flags); in unreserve_highatomic_pageblock()
2885 __rmqueue_fallback(struct zone *zone, int order, int start_migratetype, in __rmqueue_fallback() argument
2910 area = &(zone->free_area[current_order]); in __rmqueue_fallback()
2936 area = &(zone->free_area[current_order]); in __rmqueue_fallback()
2952 steal_suitable_fallback(zone, page, alloc_flags, start_migratetype, in __rmqueue_fallback()
2967 __rmqueue(struct zone *zone, unsigned int order, int migratetype, in __rmqueue() argument
2979 zone_page_state(zone, NR_FREE_CMA_PAGES) > in __rmqueue()
2980 zone_page_state(zone, NR_FREE_PAGES) / 2) { in __rmqueue()
2981 page = __rmqueue_cma_fallback(zone, order); in __rmqueue()
2987 page = __rmqueue_smallest(zone, order, migratetype); in __rmqueue()
2990 page = __rmqueue_cma_fallback(zone, order); in __rmqueue()
2992 if (!page && __rmqueue_fallback(zone, order, migratetype, in __rmqueue()
3007 static int rmqueue_bulk(struct zone *zone, unsigned int order, in rmqueue_bulk() argument
3017 spin_lock(&zone->lock); in rmqueue_bulk()
3019 struct page *page = __rmqueue(zone, order, migratetype, in rmqueue_bulk()
3040 __mod_zone_page_state(zone, NR_FREE_CMA_PAGES, in rmqueue_bulk()
3050 __mod_zone_page_state(zone, NR_FREE_PAGES, -(i << order)); in rmqueue_bulk()
3051 spin_unlock(&zone->lock); in rmqueue_bulk()
3064 void drain_zone_pages(struct zone *zone, struct per_cpu_pages *pcp) in drain_zone_pages() argument
3073 free_pcppages_bulk(zone, to_drain, pcp); in drain_zone_pages()
3085 static void drain_pages_zone(unsigned int cpu, struct zone *zone) in drain_pages_zone() argument
3092 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in drain_pages_zone()
3094 free_pcppages_bulk(zone, pcp->count, pcp); in drain_pages_zone()
3108 struct zone *zone; in drain_pages() local
3110 for_each_populated_zone(zone) { in drain_pages()
3111 drain_pages_zone(cpu, zone); in drain_pages()
3121 void drain_local_pages(struct zone *zone) in drain_local_pages() argument
3125 if (zone) in drain_local_pages()
3126 drain_pages_zone(cpu, zone); in drain_local_pages()
3145 drain_local_pages(drain->zone); in drain_local_pages_wq()
3159 static void __drain_all_pages(struct zone *zone, bool force_all_cpus) in __drain_all_pages() argument
3182 if (!zone) in __drain_all_pages()
3195 struct zone *z; in __drain_all_pages()
3204 } else if (zone) { in __drain_all_pages()
3205 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in __drain_all_pages()
3227 drain->zone = zone; in __drain_all_pages()
3244 void drain_all_pages(struct zone *zone) in drain_all_pages() argument
3246 __drain_all_pages(zone, false); in drain_all_pages()
3256 void mark_free_pages(struct zone *zone) in mark_free_pages() argument
3263 if (zone_is_empty(zone)) in mark_free_pages()
3266 spin_lock_irqsave(&zone->lock, flags); in mark_free_pages()
3268 max_zone_pfn = zone_end_pfn(zone); in mark_free_pages()
3269 for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++) in mark_free_pages()
3278 if (page_zone(page) != zone) in mark_free_pages()
3287 &zone->free_area[order].free_list[t], lru) { in mark_free_pages()
3300 spin_unlock_irqrestore(&zone->lock, flags); in mark_free_pages()
3341 static int nr_pcp_high(struct per_cpu_pages *pcp, struct zone *zone) in nr_pcp_high() argument
3348 if (!test_bit(ZONE_RECLAIM_ACTIVE, &zone->flags)) in nr_pcp_high()
3361 struct zone *zone = page_zone(page); in free_unref_page_commit() local
3367 pcp = this_cpu_ptr(zone->per_cpu_pageset); in free_unref_page_commit()
3371 high = nr_pcp_high(pcp, zone); in free_unref_page_commit()
3375 free_pcppages_bulk(zone, nr_pcp_free(pcp, high, batch), pcp); in free_unref_page_commit()
3498 struct zone *zone; in __isolate_free_page() local
3503 zone = page_zone(page); in __isolate_free_page()
3513 watermark = zone->_watermark[WMARK_MIN] + (1UL << order); in __isolate_free_page()
3514 if (!zone_watermark_ok(zone, 0, watermark, 0, ALLOC_CMA)) in __isolate_free_page()
3517 __mod_zone_freepage_state(zone, -(1UL << order), mt); in __isolate_free_page()
3522 del_page_from_free_list(page, zone, order); in __isolate_free_page()
3554 struct zone *zone = page_zone(page); in __putback_isolated_page() local
3557 lockdep_assert_held(&zone->lock); in __putback_isolated_page()
3560 __free_one_page(page, page_to_pfn(page), zone, order, mt, in __putback_isolated_page()
3569 static inline void zone_statistics(struct zone *preferred_zone, struct zone *z, in zone_statistics()
3594 struct page *__rmqueue_pcplist(struct zone *zone, unsigned int order, in __rmqueue_pcplist() argument
3616 alloced = rmqueue_bulk(zone, order, in __rmqueue_pcplist()
3634 static struct page *rmqueue_pcplist(struct zone *preferred_zone, in rmqueue_pcplist()
3635 struct zone *zone, unsigned int order, in rmqueue_pcplist() argument
3651 pcp = this_cpu_ptr(zone->per_cpu_pageset); in rmqueue_pcplist()
3654 page = __rmqueue_pcplist(zone, order, migratetype, alloc_flags, pcp, list); in rmqueue_pcplist()
3658 zone_statistics(preferred_zone, zone, 1); in rmqueue_pcplist()
3667 struct page *rmqueue(struct zone *preferred_zone, in rmqueue()
3668 struct zone *zone, unsigned int order, in rmqueue() argument
3682 page = rmqueue_pcplist(preferred_zone, zone, order, in rmqueue()
3693 spin_lock_irqsave(&zone->lock, flags); in rmqueue()
3704 page = __rmqueue_smallest(zone, order, MIGRATE_HIGHATOMIC); in rmqueue()
3709 page = __rmqueue(zone, order, migratetype, alloc_flags); in rmqueue()
3714 __mod_zone_freepage_state(zone, -(1 << order), in rmqueue()
3716 spin_unlock_irqrestore(&zone->lock, flags); in rmqueue()
3719 zone_statistics(preferred_zone, zone, 1); in rmqueue()
3723 if (test_bit(ZONE_BOOSTED_WATERMARK, &zone->flags)) { in rmqueue()
3724 clear_bit(ZONE_BOOSTED_WATERMARK, &zone->flags); in rmqueue()
3725 wakeup_kswapd(zone, 0, 0, zone_idx(zone)); in rmqueue()
3728 VM_BUG_ON_PAGE(page && bad_range(zone, page), page); in rmqueue()
3732 spin_unlock_irqrestore(&zone->lock, flags); in rmqueue()
3810 static inline long __zone_watermark_unusable_free(struct zone *z, in __zone_watermark_unusable_free()
3839 bool __zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark, in __zone_watermark_ok()
3903 bool zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark, in zone_watermark_ok()
3910 static inline bool zone_watermark_fast(struct zone *z, unsigned int order, in zone_watermark_fast()
3950 bool zone_watermark_ok_safe(struct zone *z, unsigned int order, in zone_watermark_ok_safe()
3965 static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone) in zone_allows_reclaim() argument
3967 return node_distance(zone_to_nid(local_zone), zone_to_nid(zone)) <= in zone_allows_reclaim()
3971 static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone) in zone_allows_reclaim() argument
3986 alloc_flags_nofragment(struct zone *zone, gfp_t gfp_mask) in alloc_flags_nofragment() argument
3997 if (!zone) in alloc_flags_nofragment()
4000 if (zone_idx(zone) != ZONE_NORMAL) in alloc_flags_nofragment()
4009 if (nr_online_nodes > 1 && !populated_zone(--zone)) in alloc_flags_nofragment()
4037 struct zone *zone; in get_page_from_freelist() local
4048 for_next_zone_zonelist_nodemask(zone, z, ac->highest_zoneidx, in get_page_from_freelist()
4055 !__cpuset_zone_allowed(zone, gfp_mask)) in get_page_from_freelist()
4077 if (last_pgdat_dirty_limit == zone->zone_pgdat) in get_page_from_freelist()
4080 if (!node_dirty_ok(zone->zone_pgdat)) { in get_page_from_freelist()
4081 last_pgdat_dirty_limit = zone->zone_pgdat; in get_page_from_freelist()
4087 zone != ac->preferred_zoneref->zone) { in get_page_from_freelist()
4095 local_nid = zone_to_nid(ac->preferred_zoneref->zone); in get_page_from_freelist()
4096 if (zone_to_nid(zone) != local_nid) { in get_page_from_freelist()
4102 mark = wmark_pages(zone, alloc_flags & ALLOC_WMARK_MASK); in get_page_from_freelist()
4103 if (!zone_watermark_fast(zone, order, mark, in get_page_from_freelist()
4114 if (_deferred_grow_zone(zone, order)) in get_page_from_freelist()
4124 !zone_allows_reclaim(ac->preferred_zoneref->zone, zone)) in get_page_from_freelist()
4127 ret = node_reclaim(zone->zone_pgdat, gfp_mask, order); in get_page_from_freelist()
4137 if (zone_watermark_ok(zone, order, mark, in get_page_from_freelist()
4146 page = rmqueue(ac->preferred_zoneref->zone, zone, order, in get_page_from_freelist()
4156 reserve_highatomic_pageblock(page, zone, order); in get_page_from_freelist()
4163 if (_deferred_grow_zone(zone, order)) in get_page_from_freelist()
4376 struct zone *zone = page_zone(page); in __alloc_pages_direct_compact() local
4378 zone->compact_blockskip_flush = false; in __alloc_pages_direct_compact()
4379 compaction_defer_reset(zone, order, true); in __alloc_pages_direct_compact()
4491 struct zone *zone; in should_compact_retry() local
4503 for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, in should_compact_retry()
4505 if (zone_watermark_ok(zone, 0, min_wmark_pages(zone), in should_compact_retry()
4635 struct zone *zone; in wake_all_kswapds() local
4639 for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, highest_zoneidx, in wake_all_kswapds()
4641 if (last_pgdat != zone->zone_pgdat) in wake_all_kswapds()
4642 wakeup_kswapd(zone, gfp_mask, order, highest_zoneidx); in wake_all_kswapds()
4643 last_pgdat = zone->zone_pgdat; in wake_all_kswapds()
4746 struct zone *zone; in should_reclaim_retry() local
4775 for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, in should_reclaim_retry()
4779 unsigned long min_wmark = min_wmark_pages(zone); in should_reclaim_retry()
4782 available = reclaimable = zone_reclaimable_pages(zone); in should_reclaim_retry()
4783 available += zone_page_state_snapshot(zone, NR_FREE_PAGES); in should_reclaim_retry()
4789 wmark = __zone_watermark_ok(zone, order, min_wmark, in should_reclaim_retry()
4891 if (!ac->preferred_zoneref->zone) in __alloc_pages_slowpath()
4903 if (!z->zone) in __alloc_pages_slowpath()
5192 struct zone *zone; in __alloc_pages_bulk() local
5244 for_each_zone_zonelist_nodemask(zone, z, ac.zonelist, ac.highest_zoneidx, ac.nodemask) { in __alloc_pages_bulk()
5248 !__cpuset_zone_allowed(zone, gfp)) { in __alloc_pages_bulk()
5252 if (nr_online_nodes > 1 && zone != ac.preferred_zoneref->zone && in __alloc_pages_bulk()
5253 zone_to_nid(zone) != zone_to_nid(ac.preferred_zoneref->zone)) { in __alloc_pages_bulk()
5257 mark = wmark_pages(zone, alloc_flags & ALLOC_WMARK_MASK) + nr_pages; in __alloc_pages_bulk()
5258 if (zone_watermark_fast(zone, 0, mark, in __alloc_pages_bulk()
5269 if (unlikely(!zone)) in __alloc_pages_bulk()
5274 pcp = this_cpu_ptr(zone->per_cpu_pageset); in __alloc_pages_bulk()
5285 page = __rmqueue_pcplist(zone, 0, ac.migratetype, alloc_flags, in __alloc_pages_bulk()
5305 __count_zid_vm_events(PGALLOC, zone_idx(zone), nr_account); in __alloc_pages_bulk()
5306 zone_statistics(ac.preferred_zoneref->zone, zone, nr_account); in __alloc_pages_bulk()
5366 alloc_flags |= alloc_flags_nofragment(ac.preferred_zoneref->zone, gfp); in __alloc_pages()
5689 struct zone *zone; in nr_free_zone_pages() local
5696 for_each_zone_zonelist(zone, z, zonelist, offset) { in nr_free_zone_pages()
5697 unsigned long size = zone_managed_pages(zone); in nr_free_zone_pages()
5698 unsigned long high = high_wmark_pages(zone); in nr_free_zone_pages()
5721 static inline void show_node(struct zone *zone) in show_node() argument
5724 printk("Node %d ", zone_to_nid(zone)); in show_node()
5734 struct zone *zone; in si_mem_available() local
5740 for_each_zone(zone) in si_mem_available()
5741 wmark_low += low_wmark_pages(zone); in si_mem_available()
5802 struct zone *zone = &pgdat->node_zones[zone_type]; in si_meminfo_node() local
5804 if (is_highmem(zone)) { in si_meminfo_node()
5805 managed_highpages += zone_managed_pages(zone); in si_meminfo_node()
5806 free_highpages += zone_page_state(zone, NR_FREE_PAGES); in si_meminfo_node()
5881 struct zone *zone; in show_free_areas() local
5884 for_each_populated_zone(zone) { in show_free_areas()
5885 if (show_mem_node_skip(filter, zone_to_nid(zone), nodemask)) in show_free_areas()
5889 free_pcp += per_cpu_ptr(zone->per_cpu_pageset, cpu)->count; in show_free_areas()
5975 for_each_populated_zone(zone) { in show_free_areas()
5978 if (show_mem_node_skip(filter, zone_to_nid(zone), nodemask)) in show_free_areas()
5983 free_pcp += per_cpu_ptr(zone->per_cpu_pageset, cpu)->count; in show_free_areas()
5985 show_node(zone); in show_free_areas()
6008 zone->name, in show_free_areas()
6009 K(zone_page_state(zone, NR_FREE_PAGES)), in show_free_areas()
6010 K(zone->watermark_boost), in show_free_areas()
6011 K(min_wmark_pages(zone)), in show_free_areas()
6012 K(low_wmark_pages(zone)), in show_free_areas()
6013 K(high_wmark_pages(zone)), in show_free_areas()
6014 K(zone->nr_reserved_highatomic), in show_free_areas()
6015 K(zone_page_state(zone, NR_ZONE_ACTIVE_ANON)), in show_free_areas()
6016 K(zone_page_state(zone, NR_ZONE_INACTIVE_ANON)), in show_free_areas()
6017 K(zone_page_state(zone, NR_ZONE_ACTIVE_FILE)), in show_free_areas()
6018 K(zone_page_state(zone, NR_ZONE_INACTIVE_FILE)), in show_free_areas()
6019 K(zone_page_state(zone, NR_ZONE_UNEVICTABLE)), in show_free_areas()
6020 K(zone_page_state(zone, NR_ZONE_WRITE_PENDING)), in show_free_areas()
6021 K(zone->present_pages), in show_free_areas()
6022 K(zone_managed_pages(zone)), in show_free_areas()
6023 K(zone_page_state(zone, NR_MLOCK)), in show_free_areas()
6024 K(zone_page_state(zone, NR_BOUNCE)), in show_free_areas()
6026 K(this_cpu_read(zone->per_cpu_pageset->count)), in show_free_areas()
6027 K(zone_page_state(zone, NR_FREE_CMA_PAGES))); in show_free_areas()
6030 printk(KERN_CONT " %ld", zone->lowmem_reserve[i]); in show_free_areas()
6034 for_each_populated_zone(zone) { in show_free_areas()
6039 if (show_mem_node_skip(filter, zone_to_nid(zone), nodemask)) in show_free_areas()
6041 show_node(zone); in show_free_areas()
6042 printk(KERN_CONT "%s: ", zone->name); in show_free_areas()
6044 spin_lock_irqsave(&zone->lock, flags); in show_free_areas()
6046 struct free_area *area = &zone->free_area[order]; in show_free_areas()
6058 spin_unlock_irqrestore(&zone->lock, flags); in show_free_areas()
6075 static void zoneref_set_zone(struct zone *zone, struct zoneref *zoneref) in zoneref_set_zone() argument
6077 zoneref->zone = zone; in zoneref_set_zone()
6078 zoneref->zone_idx = zone_idx(zone); in zoneref_set_zone()
6088 struct zone *zone; in build_zonerefs_node() local
6094 zone = pgdat->node_zones + zone_type; in build_zonerefs_node()
6095 if (managed_zone(zone)) { in build_zonerefs_node()
6096 zoneref_set_zone(zone, &zonerefs[nr_zones++]); in build_zonerefs_node()
6219 zonerefs->zone = NULL; in build_zonelists_in_node_order()
6234 zonerefs->zone = NULL; in build_thisnode_zonelists()
6295 return zone_to_nid(z->zone); in local_memory_node()
6336 zonerefs->zone = NULL; in build_zonelists()
6476 overlap_memmap_init(unsigned long zone, unsigned long *pfn) in overlap_memmap_init() argument
6480 if (mirrored_kernelcore && zone == ZONE_MOVABLE) { in overlap_memmap_init()
6505 void __meminit memmap_init_range(unsigned long size, int nid, unsigned long zone, in memmap_init_range() argument
6524 if (zone == ZONE_DEVICE) { in memmap_init_range()
6540 if (overlap_memmap_init(zone, &pfn)) in memmap_init_range()
6547 __init_single_page(page, pfn, zone, nid); in memmap_init_range()
6565 void __ref memmap_init_zone_device(struct zone *zone, in memmap_init_zone_device() argument
6571 struct pglist_data *pgdat = zone->zone_pgdat; in memmap_init_zone_device()
6573 unsigned long zone_idx = zone_idx(zone); in memmap_init_zone_device()
6577 if (WARN_ON_ONCE(!pgmap || zone_idx(zone) != ZONE_DEVICE)) in memmap_init_zone_device()
6633 static void __meminit zone_init_free_lists(struct zone *zone) in zone_init_free_lists() argument
6637 INIT_LIST_HEAD(&zone->free_area[order].free_list[t]); in zone_init_free_lists()
6638 zone->free_area[order].nr_free = 0; in zone_init_free_lists()
6666 int zone, int node) in init_unavailable_range() argument
6677 __init_single_page(pfn_to_page(pfn), pfn, zone, node); in init_unavailable_range()
6684 node, zone_names[zone], pgcnt); in init_unavailable_range()
6687 static void __init memmap_init_zone_range(struct zone *zone, in memmap_init_zone_range() argument
6692 unsigned long zone_start_pfn = zone->zone_start_pfn; in memmap_init_zone_range()
6693 unsigned long zone_end_pfn = zone_start_pfn + zone->spanned_pages; in memmap_init_zone_range()
6694 int nid = zone_to_nid(zone), zone_id = zone_idx(zone); in memmap_init_zone_range()
6721 struct zone *zone = node->node_zones + j; in memmap_init() local
6723 if (!populated_zone(zone)) in memmap_init()
6726 memmap_init_zone_range(zone, start_pfn, end_pfn, in memmap_init()
6768 static int zone_batchsize(struct zone *zone) in zone_batchsize() argument
6779 batch = min(zone_managed_pages(zone) >> 10, (1024 * 1024) / PAGE_SIZE); in zone_batchsize()
6816 static int zone_highsize(struct zone *zone, int batch, int cpu_online) in zone_highsize() argument
6829 total_pages = low_wmark_pages(zone); in zone_highsize()
6836 total_pages = zone_managed_pages(zone) / percpu_pagelist_high_fraction; in zone_highsize()
6847 nr_split_cpus = cpumask_weight(cpumask_of_node(zone_to_nid(zone))) + cpu_online; in zone_highsize()
6908 static void __zone_set_pageset_high_and_batch(struct zone *zone, unsigned long high, in __zone_set_pageset_high_and_batch() argument
6915 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in __zone_set_pageset_high_and_batch()
6924 static void zone_set_pageset_high_and_batch(struct zone *zone, int cpu_online) in zone_set_pageset_high_and_batch() argument
6928 new_batch = max(1, zone_batchsize(zone)); in zone_set_pageset_high_and_batch()
6929 new_high = zone_highsize(zone, new_batch, cpu_online); in zone_set_pageset_high_and_batch()
6931 if (zone->pageset_high == new_high && in zone_set_pageset_high_and_batch()
6932 zone->pageset_batch == new_batch) in zone_set_pageset_high_and_batch()
6935 zone->pageset_high = new_high; in zone_set_pageset_high_and_batch()
6936 zone->pageset_batch = new_batch; in zone_set_pageset_high_and_batch()
6938 __zone_set_pageset_high_and_batch(zone, new_high, new_batch); in zone_set_pageset_high_and_batch()
6941 void __meminit setup_zone_pageset(struct zone *zone) in setup_zone_pageset() argument
6947 zone->per_cpu_zonestats = alloc_percpu(struct per_cpu_zonestat); in setup_zone_pageset()
6949 zone->per_cpu_pageset = alloc_percpu(struct per_cpu_pages); in setup_zone_pageset()
6954 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in setup_zone_pageset()
6955 pzstats = per_cpu_ptr(zone->per_cpu_zonestats, cpu); in setup_zone_pageset()
6959 zone_set_pageset_high_and_batch(zone, 0); in setup_zone_pageset()
6969 struct zone *zone; in setup_per_cpu_pageset() local
6972 for_each_populated_zone(zone) in setup_per_cpu_pageset()
6973 setup_zone_pageset(zone); in setup_per_cpu_pageset()
6994 static __meminit void zone_pcp_init(struct zone *zone) in zone_pcp_init() argument
7001 zone->per_cpu_pageset = &boot_pageset; in zone_pcp_init()
7002 zone->per_cpu_zonestats = &boot_zonestats; in zone_pcp_init()
7003 zone->pageset_high = BOOT_PAGESET_HIGH; in zone_pcp_init()
7004 zone->pageset_batch = BOOT_PAGESET_BATCH; in zone_pcp_init()
7006 if (populated_zone(zone)) in zone_pcp_init()
7007 pr_debug(" %s zone: %lu pages, LIFO batch:%u\n", zone->name, in zone_pcp_init()
7008 zone->present_pages, zone_batchsize(zone)); in zone_pcp_init()
7011 void __meminit init_currently_empty_zone(struct zone *zone, in init_currently_empty_zone() argument
7015 struct pglist_data *pgdat = zone->zone_pgdat; in init_currently_empty_zone()
7016 int zone_idx = zone_idx(zone) + 1; in init_currently_empty_zone()
7021 zone->zone_start_pfn = zone_start_pfn; in init_currently_empty_zone()
7026 (unsigned long)zone_idx(zone), in init_currently_empty_zone()
7029 zone_init_free_lists(zone); in init_currently_empty_zone()
7030 zone->initialized = 1; in init_currently_empty_zone()
7248 struct zone *zone = pgdat->node_zones + i; in calculate_node_totalpages() local
7266 zone->zone_start_pfn = zone_start_pfn; in calculate_node_totalpages()
7268 zone->zone_start_pfn = 0; in calculate_node_totalpages()
7269 zone->spanned_pages = size; in calculate_node_totalpages()
7270 zone->present_pages = real_size; in calculate_node_totalpages()
7272 zone->present_early_pages = real_size; in calculate_node_totalpages()
7305 static void __ref setup_usemap(struct zone *zone) in setup_usemap() argument
7307 unsigned long usemapsize = usemap_size(zone->zone_start_pfn, in setup_usemap()
7308 zone->spanned_pages); in setup_usemap()
7309 zone->pageblock_flags = NULL; in setup_usemap()
7311 zone->pageblock_flags = in setup_usemap()
7313 zone_to_nid(zone)); in setup_usemap()
7314 if (!zone->pageblock_flags) in setup_usemap()
7316 usemapsize, zone->name, zone_to_nid(zone)); in setup_usemap()
7320 static inline void setup_usemap(struct zone *zone) {} in setup_usemap() argument
7421 static void __meminit zone_init_internals(struct zone *zone, enum zone_type idx, int nid, in zone_init_internals() argument
7424 atomic_long_set(&zone->managed_pages, remaining_pages); in zone_init_internals()
7425 zone_set_nid(zone, nid); in zone_init_internals()
7426 zone->name = zone_names[idx]; in zone_init_internals()
7427 zone->zone_pgdat = NODE_DATA(nid); in zone_init_internals()
7428 spin_lock_init(&zone->lock); in zone_init_internals()
7429 zone_seqlock_init(zone); in zone_init_internals()
7430 zone_pcp_init(zone); in zone_init_internals()
7470 struct zone *zone = pgdat->node_zones + j; in free_area_init_core() local
7473 size = zone->spanned_pages; in free_area_init_core()
7474 freesize = zone->present_pages; in free_area_init_core()
7511 zone_init_internals(zone, j, nid, freesize); in free_area_init_core()
7517 setup_usemap(zone); in free_area_init_core()
7518 init_currently_empty_zone(zone, zone->zone_start_pfn, size); in free_area_init_core()
7926 struct zone *zone = &pgdat->node_zones[zone_type]; in check_for_memory() local
7927 if (populated_zone(zone)) { in check_for_memory()
7962 int i, nid, zone; in free_area_init() local
7976 zone = MAX_NR_ZONES - i - 1; in free_area_init()
7978 zone = i; in free_area_init()
7980 if (zone == ZONE_MOVABLE) in free_area_init()
7983 end_pfn = max(max_zone_pfn[zone], start_pfn); in free_area_init()
7984 arch_zone_lowest_possible_pfn[zone] = start_pfn; in free_area_init()
7985 arch_zone_highest_possible_pfn[zone] = end_pfn; in free_area_init()
8220 struct zone *zone; in page_alloc_cpu_dead() local
8242 for_each_populated_zone(zone) in page_alloc_cpu_dead()
8243 zone_pcp_update(zone, 0); in page_alloc_cpu_dead()
8250 struct zone *zone; in page_alloc_cpu_online() local
8252 for_each_populated_zone(zone) in page_alloc_cpu_online()
8253 zone_pcp_update(zone, 1); in page_alloc_cpu_online()
8301 struct zone *zone = pgdat->node_zones + i; in calculate_totalreserve_pages() local
8303 unsigned long managed_pages = zone_managed_pages(zone); in calculate_totalreserve_pages()
8307 if (zone->lowmem_reserve[j] > max) in calculate_totalreserve_pages()
8308 max = zone->lowmem_reserve[j]; in calculate_totalreserve_pages()
8312 max += high_wmark_pages(zone); in calculate_totalreserve_pages()
8338 struct zone *zone = &pgdat->node_zones[i]; in setup_per_zone_lowmem_reserve() local
8340 bool clear = !ratio || !zone_managed_pages(zone); in setup_per_zone_lowmem_reserve()
8344 struct zone *upper_zone = &pgdat->node_zones[j]; in setup_per_zone_lowmem_reserve()
8349 zone->lowmem_reserve[j] = 0; in setup_per_zone_lowmem_reserve()
8351 zone->lowmem_reserve[j] = managed_pages / ratio; in setup_per_zone_lowmem_reserve()
8364 struct zone *zone; in __setup_per_zone_wmarks() local
8368 for_each_zone(zone) { in __setup_per_zone_wmarks()
8369 if (!is_highmem(zone)) in __setup_per_zone_wmarks()
8370 lowmem_pages += zone_managed_pages(zone); in __setup_per_zone_wmarks()
8373 for_each_zone(zone) { in __setup_per_zone_wmarks()
8376 spin_lock_irqsave(&zone->lock, flags); in __setup_per_zone_wmarks()
8377 tmp = (u64)pages_min * zone_managed_pages(zone); in __setup_per_zone_wmarks()
8379 if (is_highmem(zone)) { in __setup_per_zone_wmarks()
8391 min_pages = zone_managed_pages(zone) / 1024; in __setup_per_zone_wmarks()
8393 zone->_watermark[WMARK_MIN] = min_pages; in __setup_per_zone_wmarks()
8399 zone->_watermark[WMARK_MIN] = tmp; in __setup_per_zone_wmarks()
8408 mult_frac(zone_managed_pages(zone), in __setup_per_zone_wmarks()
8411 zone->watermark_boost = 0; in __setup_per_zone_wmarks()
8412 zone->_watermark[WMARK_LOW] = min_wmark_pages(zone) + tmp; in __setup_per_zone_wmarks()
8413 zone->_watermark[WMARK_HIGH] = min_wmark_pages(zone) + tmp * 2; in __setup_per_zone_wmarks()
8415 spin_unlock_irqrestore(&zone->lock, flags); in __setup_per_zone_wmarks()
8431 struct zone *zone; in setup_per_zone_wmarks() local
8442 for_each_zone(zone) in setup_per_zone_wmarks()
8443 zone_pcp_update(zone, 0); in setup_per_zone_wmarks()
8544 struct zone *zone; in setup_min_unmapped_ratio() local
8549 for_each_zone(zone) in setup_min_unmapped_ratio()
8550 zone->zone_pgdat->min_unmapped_pages += (zone_managed_pages(zone) * in setup_min_unmapped_ratio()
8572 struct zone *zone; in setup_min_slab_ratio() local
8577 for_each_zone(zone) in setup_min_slab_ratio()
8578 zone->zone_pgdat->min_slab_pages += (zone_managed_pages(zone) * in setup_min_slab_ratio()
8630 struct zone *zone; in percpu_pagelist_high_fraction_sysctl_handler() local
8653 for_each_populated_zone(zone) in percpu_pagelist_high_fraction_sysctl_handler()
8654 zone_set_pageset_high_and_batch(zone, 0); in percpu_pagelist_high_fraction_sysctl_handler()
8816 struct page *has_unmovable_pages(struct zone *zone, struct page *page, in has_unmovable_pages() argument
8852 if (zone_idx(zone) == ZONE_MOVABLE) in has_unmovable_pages()
8966 .nid = zone_to_nid(cc->zone), in __alloc_contig_migrate_range()
8990 nr_reclaimed = reclaim_clean_pages_from_list(cc->zone, in __alloc_contig_migrate_range()
9046 .zone = page_zone(pfn_to_page(start)), in alloc_contig_range()
9084 drain_all_pages(cc.zone); in alloc_contig_range()
9176 static bool pfn_range_valid_contig(struct zone *z, unsigned long start_pfn, in pfn_range_valid_contig()
9196 static bool zone_spans_last_pfn(const struct zone *zone, in zone_spans_last_pfn() argument
9201 return zone_spans_pfn(zone, last_pfn); in zone_spans_last_pfn()
9230 struct zone *zone; in alloc_contig_pages() local
9234 for_each_zone_zonelist_nodemask(zone, z, zonelist, in alloc_contig_pages()
9236 spin_lock_irqsave(&zone->lock, flags); in alloc_contig_pages()
9238 pfn = ALIGN(zone->zone_start_pfn, nr_pages); in alloc_contig_pages()
9239 while (zone_spans_last_pfn(zone, pfn, nr_pages)) { in alloc_contig_pages()
9240 if (pfn_range_valid_contig(zone, pfn, nr_pages)) { in alloc_contig_pages()
9248 spin_unlock_irqrestore(&zone->lock, flags); in alloc_contig_pages()
9253 spin_lock_irqsave(&zone->lock, flags); in alloc_contig_pages()
9257 spin_unlock_irqrestore(&zone->lock, flags); in alloc_contig_pages()
9281 void zone_pcp_update(struct zone *zone, int cpu_online) in zone_pcp_update() argument
9284 zone_set_pageset_high_and_batch(zone, cpu_online); in zone_pcp_update()
9296 void zone_pcp_disable(struct zone *zone) in zone_pcp_disable() argument
9299 __zone_set_pageset_high_and_batch(zone, 0, 1); in zone_pcp_disable()
9300 __drain_all_pages(zone, true); in zone_pcp_disable()
9303 void zone_pcp_enable(struct zone *zone) in zone_pcp_enable() argument
9305 __zone_set_pageset_high_and_batch(zone, zone->pageset_high, zone->pageset_batch); in zone_pcp_enable()
9309 void zone_pcp_reset(struct zone *zone) in zone_pcp_reset() argument
9314 if (zone->per_cpu_pageset != &boot_pageset) { in zone_pcp_reset()
9316 pzstats = per_cpu_ptr(zone->per_cpu_zonestats, cpu); in zone_pcp_reset()
9317 drain_zonestat(zone, pzstats); in zone_pcp_reset()
9319 free_percpu(zone->per_cpu_pageset); in zone_pcp_reset()
9320 free_percpu(zone->per_cpu_zonestats); in zone_pcp_reset()
9321 zone->per_cpu_pageset = &boot_pageset; in zone_pcp_reset()
9322 zone->per_cpu_zonestats = &boot_zonestats; in zone_pcp_reset()
9335 struct zone *zone; in __offline_isolated_pages() local
9340 zone = page_zone(pfn_to_page(pfn)); in __offline_isolated_pages()
9341 spin_lock_irqsave(&zone->lock, flags); in __offline_isolated_pages()
9366 del_page_from_free_list(page, zone, order); in __offline_isolated_pages()
9369 spin_unlock_irqrestore(&zone->lock, flags); in __offline_isolated_pages()
9397 static void break_down_buddy_pages(struct zone *zone, struct page *page, in break_down_buddy_pages() argument
9416 if (set_page_guard(zone, current_buddy, high, migratetype)) in break_down_buddy_pages()
9420 add_to_free_list(current_buddy, zone, high, migratetype); in break_down_buddy_pages()
9432 struct zone *zone = page_zone(page); in take_page_off_buddy() local
9438 spin_lock_irqsave(&zone->lock, flags); in take_page_off_buddy()
9448 del_page_from_free_list(page_head, zone, page_order); in take_page_off_buddy()
9449 break_down_buddy_pages(zone, page_head, page, 0, in take_page_off_buddy()
9452 __mod_zone_freepage_state(zone, -1, migratetype); in take_page_off_buddy()
9459 spin_unlock_irqrestore(&zone->lock, flags); in take_page_off_buddy()