powerpc/numa: Disable VPHN on dedicated processor partitions

There is no need to start up the timer and monitor topology changes on a dedicated processor partition, so disable it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
git-mirror · Feb 7, 2011 · fe5cfd6 · fe5cfd6
1 parent c0e5e46
commit fe5cfd6
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
@@ -1516,7 +1516,8 @@ int start_topology_update(void)
 {
 	int rc = 0;
 
-	if (firmware_has_feature(FW_FEATURE_VPHN)) {
+	if (firmware_has_feature(FW_FEATURE_VPHN) &&
+	    get_lppaca()->shared_proc) {
 		vphn_enabled = 1;
 		setup_cpu_associativity_change_counters();
 		init_timer_deferrable(&topology_timer);