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-rw-r--r--arch/ia64/mm/numa.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c
index 64e4c21f311c..7807fc5c0422 100644
--- a/arch/ia64/mm/numa.c
+++ b/arch/ia64/mm/numa.c
@@ -16,6 +16,7 @@
#include <linux/node.h>
#include <linux/init.h>
#include <linux/bootmem.h>
+#include <linux/module.h>
#include <asm/mmzone.h>
#include <asm/numa.h>
@@ -69,4 +70,21 @@ int early_pfn_to_nid(unsigned long pfn)
return 0;
}
+
+#ifdef CONFIG_MEMORY_HOTPLUG
+/*
+ * SRAT information is stored in node_memblk[], then we can use SRAT
+ * information at memory-hot-add if necessary.
+ */
+
+int memory_add_physaddr_to_nid(u64 addr)
+{
+ int nid = paddr_to_nid(addr);
+ if (nid < 0)
+ return 0;
+ return nid;
+}
+
+EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
+#endif
#endif