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-rw-r--r--lib/cpumask.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 3a67dc5ada7d..7a2a73f88d59 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -43,3 +43,19 @@ int __any_online_cpu(const cpumask_t *mask)
43 return cpu; 43 return cpu;
44} 44}
45EXPORT_SYMBOL(__any_online_cpu); 45EXPORT_SYMBOL(__any_online_cpu);
46
47#if MAX_NUMNODES > 1
48/*
49 * Find the highest possible node id.
50 */
51int highest_possible_node_id(void)
52{
53 unsigned int node;
54 unsigned int highest = 0;
55
56 for_each_node_mask(node, node_possible_map)
57 highest = node;
58 return highest;
59}
60EXPORT_SYMBOL(highest_possible_node_id);
61#endif