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Subject[PATCH 3/4] Memory Add Fixes for ppc64
This is a temporary kludge that supports adding all new memory to
node 0. I will provide a more complete solution similar to that
used for dynamically added CPUs in a few days.

Signed-off-by: Mike Kravetz <kravetz@us.ibm.com>

diff -Naupr linux-2.6.14-git7/include/asm-ppc64/mmzone.h linux-2.6.14-git7.work/include/asm-ppc64/mmzone.h
--- linux-2.6.14-git7/include/asm-ppc64/mmzone.h 2005-11-04 21:21:09.000000000 +0000
+++ linux-2.6.14-git7.work/include/asm-ppc64/mmzone.h 2005-11-04 22:10:44.000000000 +0000
@@ -33,6 +33,9 @@ extern int numa_cpu_lookup_table[];
extern char *numa_memory_lookup_table;
extern cpumask_t numa_cpumask_lookup_table[];
extern int nr_cpus_in_node[];
+#ifdef CONFIG_MEMORY_HOTPLUG
+extern unsigned long max_pfn;
+#endif

/* 16MB regions */
#define MEMORY_INCREMENT_SHIFT 24
@@ -45,6 +48,11 @@ static inline int pa_to_nid(unsigned lon
{
int nid;

+#ifdef CONFIG_MEMORY_HOTPLUG
+ /* kludge hot added sections default to node 0 */
+ if (pa >= (max_pfn << PAGE_SHIFT))
+ return 0;
+#endif
nid = numa_memory_lookup_table[pa >> MEMORY_INCREMENT_SHIFT];

#ifdef DEBUG_NUMA
-
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