[PATCH] powerpc numa: Minor debugging code changes

Add debug statement for map_cpu_to_node; it's useful for cpu hotplug.

Clarify debug statement about not finding the numa reference points
property.

Don't print a meaningless associativity depth (-1) on non-numa systems.

Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index dc6392c..2ae491d 100644 (file)
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -133,6 +133,8 @@ static inline void map_cpu_to_node(int cpu, int node)
 {
        numa_cpu_lookup_table[cpu] = node;
 
+       dbg("adding cpu %d to node %d\n", cpu, node);
+
        if (!(cpu_isset(cpu, numa_cpumask_lookup_table[node])))
                cpu_set(cpu, numa_cpumask_lookup_table[node]);
 }
@@ -246,8 +248,7 @@ static int __init find_min_common_depth(void)
        if ((len >= 1) && ref_points) {
                depth = ref_points[1];
        } else {
-               dbg("WARNING: could not find NUMA "
-                   "associativity reference point\n");
+               dbg("NUMA: ibm,associativity-reference-points not found.\n");
                depth = -1;
        }
        of_node_put(rtas_root);
@@ -385,10 +386,11 @@ static int __init parse_numa_properties(void)
 
        min_common_depth = find_min_common_depth();
 
-       dbg("NUMA associativity depth for CPU/Memory: %d\n", min_common_depth);
        if (min_common_depth < 0)
                return min_common_depth;
 
+       dbg("NUMA associativity depth for CPU/Memory: %d\n", min_common_depth);
+
        /*
         * Even though we connect cpus to numa domains later in SMP init,
         * we need to know the maximum node id now. This is because each