Merge branch 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...

[pandora-kernel.git] / arch / x86 / mm / srat_64.c

diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 3890234..1b4763e 100644 (file)
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -97,37 +97,22 @@ static __init inline int srat_disabled(void)
        return numa_off || acpi_numa < 0;
 }
 
-/*
- * A lot of BIOS fill in 10 (= no distance) everywhere. This messes
- * up the NUMA heuristics which wants the local node to have a smaller
- * distance than the others.
- * Do some quick checks here and only use the SLIT if it passes.
- */
-static __init int slit_valid(struct acpi_table_slit *slit)
-{
-       int i, j;
-       int d = slit->locality_count;
-       for (i = 0; i < d; i++) {
-               for (j = 0; j < d; j++)  {
-                       u8 val = slit->entry[d*i + j];
-                       if (i == j) {
-                               if (val != LOCAL_DISTANCE)
-                                       return 0;
-                       } else if (val <= LOCAL_DISTANCE)
-                               return 0;
-               }
-       }
-       return 1;
-}
-
 /* Callback for SLIT parsing */
 void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 {
-       if (!slit_valid(slit)) {
-               printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n");
-               return;
-       }
-       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 */
@@ -326,7 +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
@@ -403,7 +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;
@@ -522,6 +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;
@@ -533,4 +519,4 @@ int memory_add_physaddr_to_nid(u64 start)
        return ret;
 }
 EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
-
+#endif