[IA64] Minimize per_cpu reservations.

[linux-2.6-omap-h63xx.git] / arch / ia64 / mm / numa.c

diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c
index 64e4c21f311cdc7f328165b18ae189e07476f885..b73bf1838e57750fb69f3ae27d6950bcc9dc46c8 100644 (file)
--- 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>
 
@@ -26,7 +27,9 @@
  */
 int num_node_memblks;
 struct node_memblk_s node_memblk[NR_NODE_MEMBLKS];
-struct node_cpuid_s node_cpuid[NR_CPUS];
+struct node_cpuid_s node_cpuid[NR_CPUS] =
+       { [0 ... NR_CPUS-1] = { .phys_id = 0, .nid = NUMA_NO_NODE } };
+
 /*
  * This is a matrix with "distances" between nodes, they should be
  * proportional to the memory access latency ratios.
@@ -69,4 +72,21 @@ 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