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-rw-r--r--mm/page_alloc.c45
1 files changed, 25 insertions, 20 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8b000d6803c2..d8970623c566 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -136,6 +136,11 @@ static unsigned long __meminitdata dma_reserve;
136#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */ 136#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */
137#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ 137#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */
138 138
139#if MAX_NUMNODES > 1
140int nr_node_ids __read_mostly = MAX_NUMNODES;
141EXPORT_SYMBOL(nr_node_ids);
142#endif
143
139#ifdef CONFIG_DEBUG_VM 144#ifdef CONFIG_DEBUG_VM
140static int page_outside_zone_boundaries(struct zone *zone, struct page *page) 145static int page_outside_zone_boundaries(struct zone *zone, struct page *page)
141{ 146{
@@ -669,26 +674,6 @@ static int rmqueue_bulk(struct zone *zone, unsigned int order,
669 return i; 674 return i;
670} 675}
671 676
672#if MAX_NUMNODES > 1
673int nr_node_ids __read_mostly = MAX_NUMNODES;
674EXPORT_SYMBOL(nr_node_ids);
675
676/*
677 * Figure out the number of possible node ids.
678 */
679static void __init setup_nr_node_ids(void)
680{
681 unsigned int node;
682 unsigned int highest = 0;
683
684 for_each_node_mask(node, node_possible_map)
685 highest = node;
686 nr_node_ids = highest + 1;
687}
688#else
689static void __init setup_nr_node_ids(void) {}
690#endif
691
692#ifdef CONFIG_NUMA 677#ifdef CONFIG_NUMA
693/* 678/*
694 * Called from the vmstat counter updater to drain pagesets of this 679 * Called from the vmstat counter updater to drain pagesets of this
@@ -2733,6 +2718,26 @@ void __meminit free_area_init_node(int nid, struct pglist_data *pgdat,
2733} 2718}
2734 2719
2735#ifdef CONFIG_ARCH_POPULATES_NODE_MAP 2720#ifdef CONFIG_ARCH_POPULATES_NODE_MAP
2721
2722#if MAX_NUMNODES > 1
2723/*
2724 * Figure out the number of possible node ids.
2725 */
2726static void __init setup_nr_node_ids(void)
2727{
2728 unsigned int node;
2729 unsigned int highest = 0;
2730
2731 for_each_node_mask(node, node_possible_map)
2732 highest = node;
2733 nr_node_ids = highest + 1;
2734}
2735#else
2736static inline void setup_nr_node_ids(void)
2737{
2738}
2739#endif
2740
2736/** 2741/**
2737 * add_active_range - Register a range of PFNs backed by physical memory 2742 * add_active_range - Register a range of PFNs backed by physical memory
2738 * @nid: The node ID the range resides on 2743 * @nid: The node ID the range resides on