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-rw-r--r--include/asm-i386/topology.h3
-rw-r--r--include/linux/topology.h5
2 files changed, 4 insertions, 4 deletions
diff --git a/include/asm-i386/topology.h b/include/asm-i386/topology.h
index d2c836023a07..efd38639e12d 100644
--- a/include/asm-i386/topology.h
+++ b/include/asm-i386/topology.h
@@ -66,9 +66,6 @@ static inline cpumask_t pcibus_to_cpumask(int bus)
return node_to_cpumask(mp_bus_id_to_node[bus]);
}
-/* Node-to-Node distance */
-#define node_distance(from, to) ((from) != (to))
-
/* sched_domains SD_NODE_INIT for NUMAQ machines */
#define SD_NODE_INIT (struct sched_domain) { \
.span = CPU_MASK_NONE, \
diff --git a/include/linux/topology.h b/include/linux/topology.h
index 10df2542653b..1206d5a983a9 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -55,7 +55,10 @@ static inline int __next_node_with_cpus(int node)
for (node = 0; node < numnodes; node = __next_node_with_cpus(node))
#ifndef node_distance
-#define node_distance(from,to) ((from) != (to))
+/* Conform to ACPI 2.0 SLIT distance definitions */
+#define LOCAL_DISTANCE 10
+#define REMOTE_DISTANCE 20
+#define node_distance(from,to) ((from) == (to) ? LOCAL_DISTANCE : REMOTE_DISTANCE)
#endif
#ifndef PENALTY_FOR_NODE_WITH_CPUS
#define PENALTY_FOR_NODE_WITH_CPUS (1)