aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--include/asm-ppc64/mmzone.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-ppc64/mmzone.h b/include/asm-ppc64/mmzone.h
index 80a708e7093..15e777ce0f4 100644
--- a/include/asm-ppc64/mmzone.h
+++ b/include/asm-ppc64/mmzone.h
@@ -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 long pa)
{
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