Lines Matching refs:zone
305 static bool try_to_accept_memory(struct zone *zone, unsigned int order);
331 _deferred_grow_zone(struct zone *zone, unsigned int order) in _deferred_grow_zone() argument
333 return deferred_grow_zone(zone, order); in _deferred_grow_zone()
441 static int page_outside_zone_boundaries(struct zone *zone, struct page *page) in page_outside_zone_boundaries() argument
449 seq = zone_span_seqbegin(zone); in page_outside_zone_boundaries()
450 start_pfn = zone->zone_start_pfn; in page_outside_zone_boundaries()
451 sp = zone->spanned_pages; in page_outside_zone_boundaries()
452 ret = !zone_spans_pfn(zone, pfn); in page_outside_zone_boundaries()
453 } while (zone_span_seqretry(zone, seq)); in page_outside_zone_boundaries()
457 pfn, zone_to_nid(zone), zone->name, in page_outside_zone_boundaries()
466 static int __maybe_unused bad_range(struct zone *zone, struct page *page) in bad_range() argument
468 if (page_outside_zone_boundaries(zone, page)) in bad_range()
470 if (zone != page_zone(page)) in bad_range()
476 static inline int __maybe_unused bad_range(struct zone *zone, struct page *page) in bad_range() argument
612 static inline struct capture_control *task_capc(struct zone *zone) in task_capc() argument
619 capc->cc->zone == zone ? capc : NULL; in task_capc()
648 static inline struct capture_control *task_capc(struct zone *zone) in task_capc() argument
662 static inline void add_to_free_list(struct page *page, struct zone *zone, in add_to_free_list() argument
665 struct free_area *area = &zone->free_area[order]; in add_to_free_list()
672 static inline void add_to_free_list_tail(struct page *page, struct zone *zone, in add_to_free_list_tail() argument
675 struct free_area *area = &zone->free_area[order]; in add_to_free_list_tail()
686 static inline void move_to_free_list(struct page *page, struct zone *zone, in move_to_free_list() argument
689 struct free_area *area = &zone->free_area[order]; in move_to_free_list()
694 static inline void del_page_from_free_list(struct page *page, struct zone *zone, in del_page_from_free_list() argument
704 zone->free_area[order].nr_free--; in del_page_from_free_list()
765 struct zone *zone, unsigned int order, in __free_one_page() argument
768 struct capture_control *capc = task_capc(zone); in __free_one_page()
774 VM_BUG_ON(!zone_is_initialized(zone)); in __free_one_page()
779 __mod_zone_freepage_state(zone, 1 << order, migratetype); in __free_one_page()
782 VM_BUG_ON_PAGE(bad_range(zone, page), page); in __free_one_page()
786 __mod_zone_freepage_state(zone, -(1 << order), in __free_one_page()
815 clear_page_guard(zone, buddy, order, migratetype); in __free_one_page()
817 del_page_from_free_list(buddy, zone, order); in __free_one_page()
835 add_to_free_list_tail(page, zone, order, migratetype); in __free_one_page()
837 add_to_free_list(page, zone, order, migratetype); in __free_one_page()
860 struct zone *zone = page_zone(free_page); in split_free_page() local
871 spin_lock_irqsave(&zone->lock, flags); in split_free_page()
880 __mod_zone_freepage_state(zone, -(1UL << order), mt); in split_free_page()
882 del_page_from_free_list(free_page, zone, order); in split_free_page()
890 __free_one_page(pfn_to_page(pfn), pfn, zone, free_page_order, in split_free_page()
899 spin_unlock_irqrestore(&zone->lock, flags); in split_free_page()
1183 static void free_pcppages_bulk(struct zone *zone, int count, in free_pcppages_bulk() argument
1201 spin_lock_irqsave(&zone->lock, flags); in free_pcppages_bulk()
1202 isolated_pageblocks = has_isolate_pageblock(zone); in free_pcppages_bulk()
1234 __free_one_page(page, page_to_pfn(page), zone, order, mt, FPI_NONE); in free_pcppages_bulk()
1239 spin_unlock_irqrestore(&zone->lock, flags); in free_pcppages_bulk()
1242 static void free_one_page(struct zone *zone, in free_one_page() argument
1249 spin_lock_irqsave(&zone->lock, flags); in free_one_page()
1250 if (unlikely(has_isolate_pageblock(zone) || in free_one_page()
1254 __free_one_page(page, pfn, zone, order, migratetype, fpi_flags); in free_one_page()
1255 spin_unlock_irqrestore(&zone->lock, flags); in free_one_page()
1264 struct zone *zone = page_zone(page); in __free_pages_ok() local
1276 spin_lock_irqsave(&zone->lock, flags); in __free_pages_ok()
1277 if (unlikely(has_isolate_pageblock(zone) || in __free_pages_ok()
1281 __free_one_page(page, pfn, zone, order, migratetype, fpi_flags); in __free_pages_ok()
1282 spin_unlock_irqrestore(&zone->lock, flags); in __free_pages_ok()
1348 unsigned long end_pfn, struct zone *zone) in __pageblock_pfn_to_page() argument
1363 if (page_zone(start_page) != zone) in __pageblock_pfn_to_page()
1389 static inline void expand(struct zone *zone, struct page *page, in expand() argument
1397 VM_BUG_ON_PAGE(bad_range(zone, &page[size]), &page[size]); in expand()
1405 if (set_page_guard(zone, &page[size], high, migratetype)) in expand()
1408 add_to_free_list(&page[size], zone, high, migratetype); in expand()
1565 struct page *__rmqueue_smallest(struct zone *zone, unsigned int order, in __rmqueue_smallest() argument
1574 area = &(zone->free_area[current_order]); in __rmqueue_smallest()
1578 del_page_from_free_list(page, zone, current_order); in __rmqueue_smallest()
1579 expand(zone, page, order, current_order, migratetype); in __rmqueue_smallest()
1604 static __always_inline struct page *__rmqueue_cma_fallback(struct zone *zone, in __rmqueue_cma_fallback() argument
1607 return __rmqueue_smallest(zone, order, MIGRATE_CMA); in __rmqueue_cma_fallback()
1610 static inline struct page *__rmqueue_cma_fallback(struct zone *zone, in __rmqueue_cma_fallback() argument
1619 static int move_freepages(struct zone *zone, in move_freepages() argument
1644 VM_BUG_ON_PAGE(page_to_nid(page) != zone_to_nid(zone), page); in move_freepages()
1645 VM_BUG_ON_PAGE(page_zone(page) != zone, page); in move_freepages()
1648 move_to_free_list(page, zone, order, migratetype); in move_freepages()
1656 int move_freepages_block(struct zone *zone, struct page *page, in move_freepages_block() argument
1669 if (!zone_spans_pfn(zone, start_pfn)) in move_freepages_block()
1671 if (!zone_spans_pfn(zone, end_pfn)) in move_freepages_block()
1674 return move_freepages(zone, start_pfn, end_pfn, migratetype, in move_freepages_block()
1722 static inline bool boost_watermark(struct zone *zone) in boost_watermark() argument
1734 if ((pageblock_nr_pages * 4) > zone_managed_pages(zone)) in boost_watermark()
1737 max_boost = mult_frac(zone->_watermark[WMARK_HIGH], in boost_watermark()
1753 zone->watermark_boost = min(zone->watermark_boost + pageblock_nr_pages, in boost_watermark()
1767 static void steal_suitable_fallback(struct zone *zone, struct page *page, in steal_suitable_fallback() argument
1794 if (boost_watermark(zone) && (alloc_flags & ALLOC_KSWAPD)) in steal_suitable_fallback()
1795 set_bit(ZONE_BOOSTED_WATERMARK, &zone->flags); in steal_suitable_fallback()
1801 free_pages = move_freepages_block(zone, page, start_type, in steal_suitable_fallback()
1839 move_to_free_list(page, zone, current_order, start_type); in steal_suitable_fallback()
1880 static void reserve_highatomic_pageblock(struct page *page, struct zone *zone) in reserve_highatomic_pageblock() argument
1889 max_managed = (zone_managed_pages(zone) / 100) + pageblock_nr_pages; in reserve_highatomic_pageblock()
1890 if (zone->nr_reserved_highatomic >= max_managed) in reserve_highatomic_pageblock()
1893 spin_lock_irqsave(&zone->lock, flags); in reserve_highatomic_pageblock()
1896 if (zone->nr_reserved_highatomic >= max_managed) in reserve_highatomic_pageblock()
1903 zone->nr_reserved_highatomic += pageblock_nr_pages; in reserve_highatomic_pageblock()
1905 move_freepages_block(zone, page, MIGRATE_HIGHATOMIC, NULL); in reserve_highatomic_pageblock()
1909 spin_unlock_irqrestore(&zone->lock, flags); in reserve_highatomic_pageblock()
1927 struct zone *zone; in unreserve_highatomic_pageblock() local
1932 for_each_zone_zonelist_nodemask(zone, z, zonelist, ac->highest_zoneidx, in unreserve_highatomic_pageblock()
1938 if (!force && zone->nr_reserved_highatomic <= in unreserve_highatomic_pageblock()
1942 spin_lock_irqsave(&zone->lock, flags); in unreserve_highatomic_pageblock()
1944 struct free_area *area = &(zone->free_area[order]); in unreserve_highatomic_pageblock()
1965 zone->nr_reserved_highatomic -= min( in unreserve_highatomic_pageblock()
1967 zone->nr_reserved_highatomic); in unreserve_highatomic_pageblock()
1980 ret = move_freepages_block(zone, page, ac->migratetype, in unreserve_highatomic_pageblock()
1983 spin_unlock_irqrestore(&zone->lock, flags); in unreserve_highatomic_pageblock()
1987 spin_unlock_irqrestore(&zone->lock, flags); in unreserve_highatomic_pageblock()
2004 __rmqueue_fallback(struct zone *zone, int order, int start_migratetype, in __rmqueue_fallback() argument
2029 area = &(zone->free_area[current_order]); in __rmqueue_fallback()
2055 area = &(zone->free_area[current_order]); in __rmqueue_fallback()
2071 steal_suitable_fallback(zone, page, alloc_flags, start_migratetype, in __rmqueue_fallback()
2086 __rmqueue(struct zone *zone, unsigned int order, int migratetype, in __rmqueue() argument
2098 zone_page_state(zone, NR_FREE_CMA_PAGES) > in __rmqueue()
2099 zone_page_state(zone, NR_FREE_PAGES) / 2) { in __rmqueue()
2100 page = __rmqueue_cma_fallback(zone, order); in __rmqueue()
2106 page = __rmqueue_smallest(zone, order, migratetype); in __rmqueue()
2109 page = __rmqueue_cma_fallback(zone, order); in __rmqueue()
2111 if (!page && __rmqueue_fallback(zone, order, migratetype, in __rmqueue()
2123 static int rmqueue_bulk(struct zone *zone, unsigned int order, in rmqueue_bulk() argument
2130 spin_lock_irqsave(&zone->lock, flags); in rmqueue_bulk()
2132 struct page *page = __rmqueue(zone, order, migratetype, in rmqueue_bulk()
2149 __mod_zone_page_state(zone, NR_FREE_CMA_PAGES, in rmqueue_bulk()
2153 __mod_zone_page_state(zone, NR_FREE_PAGES, -(i << order)); in rmqueue_bulk()
2154 spin_unlock_irqrestore(&zone->lock, flags); in rmqueue_bulk()
2165 void drain_zone_pages(struct zone *zone, struct per_cpu_pages *pcp) in drain_zone_pages() argument
2173 free_pcppages_bulk(zone, to_drain, pcp, 0); in drain_zone_pages()
2182 static void drain_pages_zone(unsigned int cpu, struct zone *zone) in drain_pages_zone() argument
2186 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in drain_pages_zone()
2189 free_pcppages_bulk(zone, pcp->count, pcp, 0); in drain_pages_zone()
2199 struct zone *zone; in drain_pages() local
2201 for_each_populated_zone(zone) { in drain_pages()
2202 drain_pages_zone(cpu, zone); in drain_pages()
2209 void drain_local_pages(struct zone *zone) in drain_local_pages() argument
2213 if (zone) in drain_local_pages()
2214 drain_pages_zone(cpu, zone); in drain_local_pages()
2229 static void __drain_all_pages(struct zone *zone, bool force_all_cpus) in __drain_all_pages() argument
2245 if (!zone) in __drain_all_pages()
2258 struct zone *z; in __drain_all_pages()
2267 } else if (zone) { in __drain_all_pages()
2268 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in __drain_all_pages()
2288 if (zone) in __drain_all_pages()
2289 drain_pages_zone(cpu, zone); in __drain_all_pages()
2302 void drain_all_pages(struct zone *zone) in drain_all_pages() argument
2304 __drain_all_pages(zone, false); in drain_all_pages()
2349 static int nr_pcp_high(struct per_cpu_pages *pcp, struct zone *zone, in nr_pcp_high() argument
2357 if (!test_bit(ZONE_RECLAIM_ACTIVE, &zone->flags)) in nr_pcp_high()
2367 static void free_unref_page_commit(struct zone *zone, struct per_cpu_pages *pcp, in free_unref_page_commit() argument
2388 high = nr_pcp_high(pcp, zone, free_high); in free_unref_page_commit()
2390 free_pcppages_bulk(zone, nr_pcp_free(pcp, high, free_high), pcp, pindex); in free_unref_page_commit()
2401 struct zone *zone; in free_unref_page() local
2424 zone = page_zone(page); in free_unref_page()
2426 pcp = pcp_spin_trylock(zone->per_cpu_pageset); in free_unref_page()
2428 free_unref_page_commit(zone, pcp, page, pcpmigratetype, order); in free_unref_page()
2431 free_one_page(zone, page, pfn, order, migratetype, FPI_NONE); in free_unref_page()
2444 struct zone *locked_zone = NULL; in free_unref_page_list()
2469 struct zone *zone = page_zone(page); in free_unref_page_list() local
2479 if (zone != locked_zone || batch_count == SWAP_CLUSTER_MAX) { in free_unref_page_list()
2492 pcp = pcp_spin_trylock(zone->per_cpu_pageset); in free_unref_page_list()
2495 free_one_page(zone, page, page_to_pfn(page), in free_unref_page_list()
2500 locked_zone = zone; in free_unref_page_list()
2511 free_unref_page_commit(zone, pcp, page, migratetype, 0); in free_unref_page_list()
2545 struct zone *zone = page_zone(page); in __isolate_free_page() local
2556 watermark = zone->_watermark[WMARK_MIN] + (1UL << order); in __isolate_free_page()
2557 if (!zone_watermark_ok(zone, 0, watermark, 0, ALLOC_CMA)) in __isolate_free_page()
2560 __mod_zone_freepage_state(zone, -(1UL << order), mt); in __isolate_free_page()
2563 del_page_from_free_list(page, zone, order); in __isolate_free_page()
2597 struct zone *zone = page_zone(page); in __putback_isolated_page() local
2600 lockdep_assert_held(&zone->lock); in __putback_isolated_page()
2603 __free_one_page(page, page_to_pfn(page), zone, order, mt, in __putback_isolated_page()
2610 static inline void zone_statistics(struct zone *preferred_zone, struct zone *z, in zone_statistics()
2634 struct page *rmqueue_buddy(struct zone *preferred_zone, struct zone *zone, in rmqueue_buddy() argument
2643 spin_lock_irqsave(&zone->lock, flags); in rmqueue_buddy()
2645 page = __rmqueue_smallest(zone, order, MIGRATE_HIGHATOMIC); in rmqueue_buddy()
2647 page = __rmqueue(zone, order, migratetype, alloc_flags); in rmqueue_buddy()
2656 page = __rmqueue_smallest(zone, order, MIGRATE_HIGHATOMIC); in rmqueue_buddy()
2659 spin_unlock_irqrestore(&zone->lock, flags); in rmqueue_buddy()
2663 __mod_zone_freepage_state(zone, -(1 << order), in rmqueue_buddy()
2665 spin_unlock_irqrestore(&zone->lock, flags); in rmqueue_buddy()
2669 zone_statistics(preferred_zone, zone, 1); in rmqueue_buddy()
2676 struct page *__rmqueue_pcplist(struct zone *zone, unsigned int order, in __rmqueue_pcplist() argument
2698 alloced = rmqueue_bulk(zone, order, in __rmqueue_pcplist()
2716 static struct page *rmqueue_pcplist(struct zone *preferred_zone, in rmqueue_pcplist()
2717 struct zone *zone, unsigned int order, in rmqueue_pcplist() argument
2727 pcp = pcp_spin_trylock(zone->per_cpu_pageset); in rmqueue_pcplist()
2740 page = __rmqueue_pcplist(zone, order, migratetype, alloc_flags, pcp, list); in rmqueue_pcplist()
2745 zone_statistics(preferred_zone, zone, 1); in rmqueue_pcplist()
2763 struct page *rmqueue(struct zone *preferred_zone, in rmqueue()
2764 struct zone *zone, unsigned int order, in rmqueue() argument
2777 page = rmqueue_pcplist(preferred_zone, zone, order, in rmqueue()
2783 page = rmqueue_buddy(preferred_zone, zone, order, alloc_flags, in rmqueue()
2789 unlikely(test_bit(ZONE_BOOSTED_WATERMARK, &zone->flags))) { in rmqueue()
2790 clear_bit(ZONE_BOOSTED_WATERMARK, &zone->flags); in rmqueue()
2791 wakeup_kswapd(zone, 0, 0, zone_idx(zone)); in rmqueue()
2794 VM_BUG_ON_PAGE(page && bad_range(zone, page), page); in rmqueue()
2804 static inline long __zone_watermark_unusable_free(struct zone *z, in __zone_watermark_unusable_free()
2835 bool __zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark, in __zone_watermark_ok()
2913 bool zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark, in zone_watermark_ok()
2920 static inline bool zone_watermark_fast(struct zone *z, unsigned int order, in zone_watermark_fast()
2965 bool zone_watermark_ok_safe(struct zone *z, unsigned int order, in zone_watermark_ok_safe()
2980 static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone) in zone_allows_reclaim() argument
2982 return node_distance(zone_to_nid(local_zone), zone_to_nid(zone)) <= in zone_allows_reclaim()
2986 static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone) in zone_allows_reclaim() argument
3001 alloc_flags_nofragment(struct zone *zone, gfp_t gfp_mask) in alloc_flags_nofragment() argument
3012 if (!zone) in alloc_flags_nofragment()
3015 if (zone_idx(zone) != ZONE_NORMAL) in alloc_flags_nofragment()
3024 if (nr_online_nodes > 1 && !populated_zone(--zone)) in alloc_flags_nofragment()
3052 struct zone *zone; in get_page_from_freelist() local
3064 for_next_zone_zonelist_nodemask(zone, z, ac->highest_zoneidx, in get_page_from_freelist()
3071 !__cpuset_zone_allowed(zone, gfp_mask)) in get_page_from_freelist()
3093 if (last_pgdat != zone->zone_pgdat) { in get_page_from_freelist()
3094 last_pgdat = zone->zone_pgdat; in get_page_from_freelist()
3095 last_pgdat_dirty_ok = node_dirty_ok(zone->zone_pgdat); in get_page_from_freelist()
3103 zone != ac->preferred_zoneref->zone) { in get_page_from_freelist()
3111 local_nid = zone_to_nid(ac->preferred_zoneref->zone); in get_page_from_freelist()
3112 if (zone_to_nid(zone) != local_nid) { in get_page_from_freelist()
3118 mark = wmark_pages(zone, alloc_flags & ALLOC_WMARK_MASK); in get_page_from_freelist()
3119 if (!zone_watermark_fast(zone, order, mark, in get_page_from_freelist()
3125 if (try_to_accept_memory(zone, order)) in get_page_from_freelist()
3135 if (_deferred_grow_zone(zone, order)) in get_page_from_freelist()
3145 !zone_allows_reclaim(ac->preferred_zoneref->zone, zone)) in get_page_from_freelist()
3148 ret = node_reclaim(zone->zone_pgdat, gfp_mask, order); in get_page_from_freelist()
3158 if (zone_watermark_ok(zone, order, mark, in get_page_from_freelist()
3167 page = rmqueue(ac->preferred_zoneref->zone, zone, order, in get_page_from_freelist()
3177 reserve_highatomic_pageblock(page, zone); in get_page_from_freelist()
3182 if (try_to_accept_memory(zone, order)) in get_page_from_freelist()
3189 if (_deferred_grow_zone(zone, order)) in get_page_from_freelist()
3407 struct zone *zone = page_zone(page); in __alloc_pages_direct_compact() local
3409 zone->compact_blockskip_flush = false; in __alloc_pages_direct_compact()
3410 compaction_defer_reset(zone, order, true); in __alloc_pages_direct_compact()
3507 struct zone *zone; in should_compact_retry() local
3519 for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, in should_compact_retry()
3521 if (zone_watermark_ok(zone, 0, min_wmark_pages(zone), in should_compact_retry()
3677 struct zone *zone; in wake_all_kswapds() local
3681 for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, highest_zoneidx, in wake_all_kswapds()
3683 if (!managed_zone(zone)) in wake_all_kswapds()
3685 if (last_pgdat != zone->zone_pgdat) { in wake_all_kswapds()
3686 wakeup_kswapd(zone, gfp_mask, order, highest_zoneidx); in wake_all_kswapds()
3687 last_pgdat = zone->zone_pgdat; in wake_all_kswapds()
3798 struct zone *zone; in should_reclaim_retry() local
3827 for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, in should_reclaim_retry()
3831 unsigned long min_wmark = min_wmark_pages(zone); in should_reclaim_retry()
3834 available = reclaimable = zone_reclaimable_pages(zone); in should_reclaim_retry()
3835 available += zone_page_state_snapshot(zone, NR_FREE_PAGES); in should_reclaim_retry()
3841 wmark = __zone_watermark_ok(zone, order, min_wmark, in should_reclaim_retry()
3937 if (!ac->preferred_zoneref->zone) in __alloc_pages_slowpath()
3949 if (!z->zone) in __alloc_pages_slowpath()
4245 struct zone *zone; in __alloc_pages_bulk() local
4297 for_each_zone_zonelist_nodemask(zone, z, ac.zonelist, ac.highest_zoneidx, ac.nodemask) { in __alloc_pages_bulk()
4301 !__cpuset_zone_allowed(zone, gfp)) { in __alloc_pages_bulk()
4305 if (nr_online_nodes > 1 && zone != ac.preferred_zoneref->zone && in __alloc_pages_bulk()
4306 zone_to_nid(zone) != zone_to_nid(ac.preferred_zoneref->zone)) { in __alloc_pages_bulk()
4310 mark = wmark_pages(zone, alloc_flags & ALLOC_WMARK_MASK) + nr_pages; in __alloc_pages_bulk()
4311 if (zone_watermark_fast(zone, 0, mark, in __alloc_pages_bulk()
4322 if (unlikely(!zone)) in __alloc_pages_bulk()
4327 pcp = pcp_spin_trylock(zone->per_cpu_pageset); in __alloc_pages_bulk()
4341 page = __rmqueue_pcplist(zone, 0, ac.migratetype, alloc_flags, in __alloc_pages_bulk()
4364 __count_zid_vm_events(PGALLOC, zone_idx(zone), nr_account); in __alloc_pages_bulk()
4365 zone_statistics(ac.preferred_zoneref->zone, zone, nr_account); in __alloc_pages_bulk()
4423 alloc_flags |= alloc_flags_nofragment(ac.preferred_zoneref->zone, gfp); in __alloc_pages()
4767 struct zone *zone; in nr_free_zone_pages() local
4774 for_each_zone_zonelist(zone, z, zonelist, offset) { in nr_free_zone_pages()
4775 unsigned long size = zone_managed_pages(zone); in nr_free_zone_pages()
4776 unsigned long high = high_wmark_pages(zone); in nr_free_zone_pages()
4799 static void zoneref_set_zone(struct zone *zone, struct zoneref *zoneref) in zoneref_set_zone() argument
4801 zoneref->zone = zone; in zoneref_set_zone()
4802 zoneref->zone_idx = zone_idx(zone); in zoneref_set_zone()
4812 struct zone *zone; in build_zonerefs_node() local
4818 zone = pgdat->node_zones + zone_type; in build_zonerefs_node()
4819 if (populated_zone(zone)) { in build_zonerefs_node()
4820 zoneref_set_zone(zone, &zonerefs[nr_zones++]); in build_zonerefs_node()
4941 zonerefs->zone = NULL; in build_zonelists_in_node_order()
4956 zonerefs->zone = NULL; in build_thisnode_zonelists()
5015 return zone_to_nid(z->zone); in local_memory_node()
5056 zonerefs->zone = NULL; in build_zonelists()
5209 static int zone_batchsize(struct zone *zone) in zone_batchsize() argument
5220 batch = min(zone_managed_pages(zone) >> 10, SZ_1M / PAGE_SIZE); in zone_batchsize()
5258 static int zone_highsize(struct zone *zone, int batch, int cpu_online) in zone_highsize() argument
5271 total_pages = low_wmark_pages(zone); in zone_highsize()
5278 total_pages = zone_managed_pages(zone) / percpu_pagelist_high_fraction; in zone_highsize()
5289 nr_split_cpus = cpumask_weight(cpumask_of_node(zone_to_nid(zone))) + cpu_online; in zone_highsize()
5351 static void __zone_set_pageset_high_and_batch(struct zone *zone, unsigned long high, in __zone_set_pageset_high_and_batch() argument
5358 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in __zone_set_pageset_high_and_batch()
5367 static void zone_set_pageset_high_and_batch(struct zone *zone, int cpu_online) in zone_set_pageset_high_and_batch() argument
5371 new_batch = max(1, zone_batchsize(zone)); in zone_set_pageset_high_and_batch()
5372 new_high = zone_highsize(zone, new_batch, cpu_online); in zone_set_pageset_high_and_batch()
5374 if (zone->pageset_high == new_high && in zone_set_pageset_high_and_batch()
5375 zone->pageset_batch == new_batch) in zone_set_pageset_high_and_batch()
5378 zone->pageset_high = new_high; in zone_set_pageset_high_and_batch()
5379 zone->pageset_batch = new_batch; in zone_set_pageset_high_and_batch()
5381 __zone_set_pageset_high_and_batch(zone, new_high, new_batch); in zone_set_pageset_high_and_batch()
5384 void __meminit setup_zone_pageset(struct zone *zone) in setup_zone_pageset() argument
5390 zone->per_cpu_zonestats = alloc_percpu(struct per_cpu_zonestat); in setup_zone_pageset()
5392 zone->per_cpu_pageset = alloc_percpu(struct per_cpu_pages); in setup_zone_pageset()
5397 pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); in setup_zone_pageset()
5398 pzstats = per_cpu_ptr(zone->per_cpu_zonestats, cpu); in setup_zone_pageset()
5402 zone_set_pageset_high_and_batch(zone, 0); in setup_zone_pageset()
5409 static void zone_pcp_update(struct zone *zone, int cpu_online) in zone_pcp_update() argument
5412 zone_set_pageset_high_and_batch(zone, cpu_online); in zone_pcp_update()
5423 struct zone *zone; in setup_per_cpu_pageset() local
5426 for_each_populated_zone(zone) in setup_per_cpu_pageset()
5427 setup_zone_pageset(zone); in setup_per_cpu_pageset()
5448 __meminit void zone_pcp_init(struct zone *zone) in zone_pcp_init() argument
5455 zone->per_cpu_pageset = &boot_pageset; in zone_pcp_init()
5456 zone->per_cpu_zonestats = &boot_zonestats; in zone_pcp_init()
5457 zone->pageset_high = BOOT_PAGESET_HIGH; in zone_pcp_init()
5458 zone->pageset_batch = BOOT_PAGESET_BATCH; in zone_pcp_init()
5460 if (populated_zone(zone)) in zone_pcp_init()
5461 pr_debug(" %s zone: %lu pages, LIFO batch:%u\n", zone->name, in zone_pcp_init()
5462 zone->present_pages, zone_batchsize(zone)); in zone_pcp_init()
5514 struct zone *zone; in page_alloc_cpu_dead() local
5537 for_each_populated_zone(zone) in page_alloc_cpu_dead()
5538 zone_pcp_update(zone, 0); in page_alloc_cpu_dead()
5545 struct zone *zone; in page_alloc_cpu_online() local
5547 for_each_populated_zone(zone) in page_alloc_cpu_online()
5548 zone_pcp_update(zone, 1); in page_alloc_cpu_online()
5578 struct zone *zone = pgdat->node_zones + i; in calculate_totalreserve_pages() local
5580 unsigned long managed_pages = zone_managed_pages(zone); in calculate_totalreserve_pages()
5584 if (zone->lowmem_reserve[j] > max) in calculate_totalreserve_pages()
5585 max = zone->lowmem_reserve[j]; in calculate_totalreserve_pages()
5589 max += high_wmark_pages(zone); in calculate_totalreserve_pages()
5615 struct zone *zone = &pgdat->node_zones[i]; in setup_per_zone_lowmem_reserve() local
5617 bool clear = !ratio || !zone_managed_pages(zone); in setup_per_zone_lowmem_reserve()
5621 struct zone *upper_zone = &pgdat->node_zones[j]; in setup_per_zone_lowmem_reserve()
5626 zone->lowmem_reserve[j] = 0; in setup_per_zone_lowmem_reserve()
5628 zone->lowmem_reserve[j] = managed_pages / ratio; in setup_per_zone_lowmem_reserve()
5641 struct zone *zone; in __setup_per_zone_wmarks() local
5645 for_each_zone(zone) { in __setup_per_zone_wmarks()
5646 if (!is_highmem(zone) && zone_idx(zone) != ZONE_MOVABLE) in __setup_per_zone_wmarks()
5647 lowmem_pages += zone_managed_pages(zone); in __setup_per_zone_wmarks()
5650 for_each_zone(zone) { in __setup_per_zone_wmarks()
5653 spin_lock_irqsave(&zone->lock, flags); in __setup_per_zone_wmarks()
5654 tmp = (u64)pages_min * zone_managed_pages(zone); in __setup_per_zone_wmarks()
5656 if (is_highmem(zone) || zone_idx(zone) == ZONE_MOVABLE) { in __setup_per_zone_wmarks()
5668 min_pages = zone_managed_pages(zone) / 1024; in __setup_per_zone_wmarks()
5670 zone->_watermark[WMARK_MIN] = min_pages; in __setup_per_zone_wmarks()
5676 zone->_watermark[WMARK_MIN] = tmp; in __setup_per_zone_wmarks()
5685 mult_frac(zone_managed_pages(zone), in __setup_per_zone_wmarks()
5688 zone->watermark_boost = 0; in __setup_per_zone_wmarks()
5689 zone->_watermark[WMARK_LOW] = min_wmark_pages(zone) + tmp; in __setup_per_zone_wmarks()
5690 zone->_watermark[WMARK_HIGH] = low_wmark_pages(zone) + tmp; in __setup_per_zone_wmarks()
5691 zone->_watermark[WMARK_PROMO] = high_wmark_pages(zone) + tmp; in __setup_per_zone_wmarks()
5693 spin_unlock_irqrestore(&zone->lock, flags); in __setup_per_zone_wmarks()
5709 struct zone *zone; in setup_per_zone_wmarks() local
5720 for_each_zone(zone) in setup_per_zone_wmarks()
5721 zone_pcp_update(zone, 0); in setup_per_zone_wmarks()
5822 struct zone *zone; in setup_min_unmapped_ratio() local
5827 for_each_zone(zone) in setup_min_unmapped_ratio()
5828 zone->zone_pgdat->min_unmapped_pages += (zone_managed_pages(zone) * in setup_min_unmapped_ratio()
5850 struct zone *zone; in setup_min_slab_ratio() local
5855 for_each_zone(zone) in setup_min_slab_ratio()
5856 zone->zone_pgdat->min_slab_pages += (zone_managed_pages(zone) * in setup_min_slab_ratio()
5908 struct zone *zone; in percpu_pagelist_high_fraction_sysctl_handler() local
5931 for_each_populated_zone(zone) in percpu_pagelist_high_fraction_sysctl_handler()
5932 zone_set_pageset_high_and_batch(zone, 0); in percpu_pagelist_high_fraction_sysctl_handler()
6039 .nid = zone_to_nid(cc->zone), in __alloc_contig_migrate_range()
6063 nr_reclaimed = reclaim_clean_pages_from_list(cc->zone, in __alloc_contig_migrate_range()
6119 .zone = page_zone(pfn_to_page(start)), in alloc_contig_range()
6153 drain_all_pages(cc.zone); in alloc_contig_range()
6244 static bool pfn_range_valid_contig(struct zone *z, unsigned long start_pfn, in pfn_range_valid_contig()
6267 static bool zone_spans_last_pfn(const struct zone *zone, in zone_spans_last_pfn() argument
6272 return zone_spans_pfn(zone, last_pfn); in zone_spans_last_pfn()
6301 struct zone *zone; in alloc_contig_pages() local
6305 for_each_zone_zonelist_nodemask(zone, z, zonelist, in alloc_contig_pages()
6307 spin_lock_irqsave(&zone->lock, flags); in alloc_contig_pages()
6309 pfn = ALIGN(zone->zone_start_pfn, nr_pages); in alloc_contig_pages()
6310 while (zone_spans_last_pfn(zone, pfn, nr_pages)) { in alloc_contig_pages()
6311 if (pfn_range_valid_contig(zone, pfn, nr_pages)) { in alloc_contig_pages()
6319 spin_unlock_irqrestore(&zone->lock, flags); in alloc_contig_pages()
6324 spin_lock_irqsave(&zone->lock, flags); in alloc_contig_pages()
6328 spin_unlock_irqrestore(&zone->lock, flags); in alloc_contig_pages()
6356 void zone_pcp_disable(struct zone *zone) in zone_pcp_disable() argument
6359 __zone_set_pageset_high_and_batch(zone, 0, 1); in zone_pcp_disable()
6360 __drain_all_pages(zone, true); in zone_pcp_disable()
6363 void zone_pcp_enable(struct zone *zone) in zone_pcp_enable() argument
6365 __zone_set_pageset_high_and_batch(zone, zone->pageset_high, zone->pageset_batch); in zone_pcp_enable()
6369 void zone_pcp_reset(struct zone *zone) in zone_pcp_reset() argument
6374 if (zone->per_cpu_pageset != &boot_pageset) { in zone_pcp_reset()
6376 pzstats = per_cpu_ptr(zone->per_cpu_zonestats, cpu); in zone_pcp_reset()
6377 drain_zonestat(zone, pzstats); in zone_pcp_reset()
6379 free_percpu(zone->per_cpu_pageset); in zone_pcp_reset()
6380 zone->per_cpu_pageset = &boot_pageset; in zone_pcp_reset()
6381 if (zone->per_cpu_zonestats != &boot_zonestats) { in zone_pcp_reset()
6382 free_percpu(zone->per_cpu_zonestats); in zone_pcp_reset()
6383 zone->per_cpu_zonestats = &boot_zonestats; in zone_pcp_reset()
6397 struct zone *zone; in __offline_isolated_pages() local
6402 zone = page_zone(pfn_to_page(pfn)); in __offline_isolated_pages()
6403 spin_lock_irqsave(&zone->lock, flags); in __offline_isolated_pages()
6428 del_page_from_free_list(page, zone, order); in __offline_isolated_pages()
6431 spin_unlock_irqrestore(&zone->lock, flags); in __offline_isolated_pages()
6460 static void break_down_buddy_pages(struct zone *zone, struct page *page, in break_down_buddy_pages() argument
6480 if (set_page_guard(zone, current_buddy, high, migratetype)) in break_down_buddy_pages()
6484 add_to_free_list(current_buddy, zone, high, migratetype); in break_down_buddy_pages()
6495 struct zone *zone = page_zone(page); in take_page_off_buddy() local
6501 spin_lock_irqsave(&zone->lock, flags); in take_page_off_buddy()
6511 del_page_from_free_list(page_head, zone, page_order); in take_page_off_buddy()
6512 break_down_buddy_pages(zone, page_head, page, 0, in take_page_off_buddy()
6516 __mod_zone_freepage_state(zone, -1, migratetype); in take_page_off_buddy()
6523 spin_unlock_irqrestore(&zone->lock, flags); in take_page_off_buddy()
6532 struct zone *zone = page_zone(page); in put_page_back_buddy() local
6538 spin_lock_irqsave(&zone->lock, flags); in put_page_back_buddy()
6541 __free_one_page(page, pfn, zone, 0, migratetype, FPI_NONE); in put_page_back_buddy()
6546 spin_unlock_irqrestore(&zone->lock, flags); in put_page_back_buddy()
6558 struct zone *zone = &pgdat->node_zones[ZONE_DMA]; in has_managed_dma() local
6560 if (managed_zone(zone)) in has_managed_dma()
6603 static bool try_to_accept_memory_one(struct zone *zone) in try_to_accept_memory_one() argument
6609 if (list_empty(&zone->unaccepted_pages)) in try_to_accept_memory_one()
6612 spin_lock_irqsave(&zone->lock, flags); in try_to_accept_memory_one()
6613 page = list_first_entry_or_null(&zone->unaccepted_pages, in try_to_accept_memory_one()
6616 spin_unlock_irqrestore(&zone->lock, flags); in try_to_accept_memory_one()
6621 last = list_empty(&zone->unaccepted_pages); in try_to_accept_memory_one()
6623 __mod_zone_freepage_state(zone, -MAX_ORDER_NR_PAGES, MIGRATE_MOVABLE); in try_to_accept_memory_one()
6624 __mod_zone_page_state(zone, NR_UNACCEPTED, -MAX_ORDER_NR_PAGES); in try_to_accept_memory_one()
6625 spin_unlock_irqrestore(&zone->lock, flags); in try_to_accept_memory_one()
6637 static bool try_to_accept_memory(struct zone *zone, unsigned int order) in try_to_accept_memory() argument
6643 to_accept = high_wmark_pages(zone) - in try_to_accept_memory()
6644 (zone_page_state(zone, NR_FREE_PAGES) - in try_to_accept_memory()
6645 __zone_watermark_unusable_free(zone, order, 0)); in try_to_accept_memory()
6649 if (!try_to_accept_memory_one(zone)) in try_to_accept_memory()
6665 struct zone *zone = page_zone(page); in __free_unaccepted() local
6672 spin_lock_irqsave(&zone->lock, flags); in __free_unaccepted()
6673 first = list_empty(&zone->unaccepted_pages); in __free_unaccepted()
6674 list_add_tail(&page->lru, &zone->unaccepted_pages); in __free_unaccepted()
6675 __mod_zone_freepage_state(zone, MAX_ORDER_NR_PAGES, MIGRATE_MOVABLE); in __free_unaccepted()
6676 __mod_zone_page_state(zone, NR_UNACCEPTED, MAX_ORDER_NR_PAGES); in __free_unaccepted()
6677 spin_unlock_irqrestore(&zone->lock, flags); in __free_unaccepted()
6696 static bool try_to_accept_memory(struct zone *zone, unsigned int order) in try_to_accept_memory() argument