X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=lib%2Fcpumask.c;h=3a67dc5ada7d5b2655ae461890519e995d50d7c9;hb=def4d8733b8b8fed521957a7fd546714dd491b91;hp=1560d97390ddd06b5137c154060db3adf9125ea9;hpb=ccb46000f4bb459777686611157ac0eac928704e;p=powerpc.git

diff --git a/lib/cpumask.c b/lib/cpumask.c
index 1560d97390..3a67dc5ada 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -9,3 +9,37 @@ int __first_cpu(const cpumask_t *srcp)
 }
 EXPORT_SYMBOL(__first_cpu);
 
+int __next_cpu(int n, const cpumask_t *srcp)
+{
+	return min_t(int, NR_CPUS, find_next_bit(srcp->bits, NR_CPUS, n+1));
+}
+EXPORT_SYMBOL(__next_cpu);
+
+/*
+ * Find the highest possible smp_processor_id()
+ *
+ * Note: if we're prepared to assume that cpu_possible_map never changes
+ * (reasonable) then this function should cache its return value.
+ */
+int highest_possible_processor_id(void)
+{
+	unsigned int cpu;
+	unsigned highest = 0;
+
+	for_each_cpu_mask(cpu, cpu_possible_map)
+		highest = cpu;
+	return highest;
+}
+EXPORT_SYMBOL(highest_possible_processor_id);
+
+int __any_online_cpu(const cpumask_t *mask)
+{
+	int cpu;
+
+	for_each_cpu_mask(cpu, *mask) {
+		if (cpu_online(cpu))
+			break;
+	}
+	return cpu;
+}
+EXPORT_SYMBOL(__any_online_cpu);