[PATCH] cpumask: add highest_possible_node_id
cpumask: add highest_possible_node_id(), analogous to
highest_possible_processor_id().
[pj@sgi.com: fix typo]
Signed-off-by: Greg Banks <gnb@melbourne.sgi.com>
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 3a67dc5..7a2a73f 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -43,3 +43,19 @@
return cpu;
}
EXPORT_SYMBOL(__any_online_cpu);
+
+#if MAX_NUMNODES > 1
+/*
+ * Find the highest possible node id.
+ */
+int highest_possible_node_id(void)
+{
+ unsigned int node;
+ unsigned int highest = 0;
+
+ for_each_node_mask(node, node_possible_map)
+ highest = node;
+ return highest;
+}
+EXPORT_SYMBOL(highest_possible_node_id);
+#endif