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-rw-r--r--mm/page_alloc.c44
1 files changed, 5 insertions, 39 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index bb90971182bd..bcb72c6e2b2d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1405,7 +1405,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype)
1405 1405
1406 mt = get_pageblock_migratetype(page); 1406 mt = get_pageblock_migratetype(page);
1407 if (unlikely(mt != MIGRATE_ISOLATE)) 1407 if (unlikely(mt != MIGRATE_ISOLATE))
1408 __mod_zone_freepage_state(zone, -(1UL << order), mt); 1408 __mod_zone_freepage_state(zone, -(1UL << alloc_order), mt);
1409 1409
1410 if (alloc_order != order) 1410 if (alloc_order != order)
1411 expand(zone, page, alloc_order, order, 1411 expand(zone, page, alloc_order, order,
@@ -1809,10 +1809,10 @@ static void __paginginit init_zone_allows_reclaim(int nid)
1809 int i; 1809 int i;
1810 1810
1811 for_each_online_node(i) 1811 for_each_online_node(i)
1812 if (node_distance(nid, i) <= RECLAIM_DISTANCE) { 1812 if (node_distance(nid, i) <= RECLAIM_DISTANCE)
1813 node_set(i, NODE_DATA(nid)->reclaim_nodes); 1813 node_set(i, NODE_DATA(nid)->reclaim_nodes);
1814 else
1814 zone_reclaim_mode = 1; 1815 zone_reclaim_mode = 1;
1815 }
1816} 1816}
1817 1817
1818#else /* CONFIG_NUMA */ 1818#else /* CONFIG_NUMA */
@@ -4505,7 +4505,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
4505 zone->zone_pgdat = pgdat; 4505 zone->zone_pgdat = pgdat;
4506 4506
4507 zone_pcp_init(zone); 4507 zone_pcp_init(zone);
4508 lruvec_init(&zone->lruvec, zone); 4508 lruvec_init(&zone->lruvec);
4509 if (!size) 4509 if (!size)
4510 continue; 4510 continue;
4511 4511
@@ -5825,7 +5825,7 @@ int alloc_contig_range(unsigned long start, unsigned long end,
5825 ret = start_isolate_page_range(pfn_max_align_down(start), 5825 ret = start_isolate_page_range(pfn_max_align_down(start),
5826 pfn_max_align_up(end), migratetype); 5826 pfn_max_align_up(end), migratetype);
5827 if (ret) 5827 if (ret)
5828 goto done; 5828 return ret;
5829 5829
5830 ret = __alloc_contig_migrate_range(&cc, start, end); 5830 ret = __alloc_contig_migrate_range(&cc, start, end);
5831 if (ret) 5831 if (ret)
@@ -6098,37 +6098,3 @@ void dump_page(struct page *page)
6098 dump_page_flags(page->flags); 6098 dump_page_flags(page->flags);
6099 mem_cgroup_print_bad_page(page); 6099 mem_cgroup_print_bad_page(page);
6100} 6100}
6101
6102/* reset zone->present_pages */
6103void reset_zone_present_pages(void)
6104{
6105 struct zone *z;
6106 int i, nid;
6107
6108 for_each_node_state(nid, N_HIGH_MEMORY) {
6109 for (i = 0; i < MAX_NR_ZONES; i++) {
6110 z = NODE_DATA(nid)->node_zones + i;
6111 z->present_pages = 0;
6112 }
6113 }
6114}
6115
6116/* calculate zone's present pages in buddy system */
6117void fixup_zone_present_pages(int nid, unsigned long start_pfn,
6118 unsigned long end_pfn)
6119{
6120 struct zone *z;
6121 unsigned long zone_start_pfn, zone_end_pfn;
6122 int i;
6123
6124 for (i = 0; i < MAX_NR_ZONES; i++) {
6125 z = NODE_DATA(nid)->node_zones + i;
6126 zone_start_pfn = z->zone_start_pfn;
6127 zone_end_pfn = zone_start_pfn + z->spanned_pages;
6128
6129 /* if the two regions intersect */
6130 if (!(zone_start_pfn >= end_pfn || zone_end_pfn <= start_pfn))
6131 z->present_pages += min(end_pfn, zone_end_pfn) -
6132 max(start_pfn, zone_start_pfn);
6133 }
6134}