From 0f532f3861d2c4e5aa7dcd33fb18e9975eb28457 Mon Sep 17 00:00:00 2001
From: Greg Banks <gnb@melbourne.sgi.com>
Date: Mon, 2 Oct 2006 02:17:39 -0700
Subject: [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>
---
lib/cpumask.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'lib')
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 3a67dc5ada..7a2a73f88d 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -43,3 +43,19 @@ int __any_online_cpu(const cpumask_t *mask)
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
--
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