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Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e60e41474332..0c9f406e3c44 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -161,7 +161,9 @@ static unsigned long __meminitdata dma_reserve;
#if MAX_NUMNODES > 1
int nr_node_ids __read_mostly = MAX_NUMNODES;
+int nr_online_nodes __read_mostly = 1;
EXPORT_SYMBOL(nr_node_ids);
+EXPORT_SYMBOL(nr_online_nodes);
#endif
int page_group_by_mobility_disabled __read_mostly;
@@ -1466,7 +1468,7 @@ this_zone_full:
if (NUMA_BUILD)
zlc_mark_zone_full(zonelist, z);
try_next_zone:
- if (NUMA_BUILD && !did_zlc_setup && num_online_nodes() > 1) {
+ if (NUMA_BUILD && !did_zlc_setup && nr_online_nodes > 1) {
/*
* we do zlc_setup after the first zone is tried but only
* if there are multiple nodes make it worthwhile
@@ -2265,7 +2267,7 @@ int numa_zonelist_order_handler(ctl_table *table, int write,
}
-#define MAX_NODE_LOAD (num_online_nodes())
+#define MAX_NODE_LOAD (nr_online_nodes)
static int node_load[MAX_NUMNODES];
/**
@@ -2474,7 +2476,7 @@ static void build_zonelists(pg_data_t *pgdat)
/* NUMA-aware ordering of nodes */
local_node = pgdat->node_id;
- load = num_online_nodes();
+ load = nr_online_nodes;
prev_node = local_node;
nodes_clear(used_mask);
@@ -2625,7 +2627,7 @@ void build_all_zonelists(void)
printk("Built %i zonelists in %s order, mobility grouping %s. "
"Total pages: %ld\n",
- num_online_nodes(),
+ nr_online_nodes,
zonelist_order_name[current_zonelist_order],
page_group_by_mobility_disabled ? "off" : "on",
vm_total_pages);