1 files changed, 17 insertions, 4 deletions

diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 99649dccad28..1b4763e26ea9 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -100,7 +100,19 @@ static __init inline int srat_disabled(void)
 /* Callback for SLIT parsing */
 void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 {
-        acpi_slit = slit;
+        unsigned length;
+        unsigned long phys;
+
+        length = slit->header.length;
+        phys = find_e820_area(0, max_pfn_mapped<<PAGE_SHIFT, length,
+                 PAGE_SIZE);
+
+        if (phys == -1L)
+                panic(" Can not save slit!\n");
+
+        acpi_slit = __va(phys);
+        memcpy(acpi_slit, slit, length);
+        reserve_early(phys, phys + length, "ACPI SLIT");
 }
 
 /* Callback for Proximity Domain -> LAPIC mapping */
@@ -299,7 +311,7 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
                         pxmram = 0;
         }
 
-        e820ram = end_pfn - absent_pages_in_range(0, end_pfn);
+        e820ram = max_pfn - absent_pages_in_range(0, max_pfn);
         /* We seem to lose 3 pages somewhere. Allow a bit of slack. */
         if ((long)(e820ram - pxmram) >= 1*1024*1024) {
                 printk(KERN_ERR
@@ -376,7 +388,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
                 if (node == NUMA_NO_NODE)
                         continue;
                 if (!node_isset(node, node_possible_map))
-                        numa_set_node(i, NUMA_NO_NODE);
+                        numa_clear_node(i);
         }
         numa_init_array();
         return 0;
@@ -495,6 +507,7 @@ int __node_distance(int a, int b)
 
 EXPORT_SYMBOL(__node_distance);
 
+#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) || defined(CONFIG_ACPI_HOTPLUG_MEMORY)
 int memory_add_physaddr_to_nid(u64 start)
 {
         int i, ret = 0;
@@ -506,4 +519,4 @@ int memory_add_physaddr_to_nid(u64 start)
         return ret;
 }
 EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
-
+#endif