3 files changed, 44 insertions, 35 deletions

diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c
index 2f187986f940..493819e543a5 100644
--- a/arch/x86_64/mm/fault.c
+++ b/arch/x86_64/mm/fault.c
@@ -23,7 +23,6 @@
 #include <linux/vt_kern.h>              /* For unblank_screen() */
 #include <linux/compiler.h>
 #include <linux/module.h>
-#include <linux/kprobes.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -440,13 +439,13 @@ good_area:
          * the fault.
          */
         switch (handle_mm_fault(mm, vma, address, write)) {
-        case 1:
+        case VM_FAULT_MINOR:
                 tsk->min_flt++;
                 break;
-        case 2:
+        case VM_FAULT_MAJOR:
                 tsk->maj_flt++;
                 break;
-        case 0:
+        case VM_FAULT_SIGBUS:
                 goto do_sigbus;
         default:
                 goto out_of_memory;
diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c
index ac61c186eb02..70cb2904a90f 100644
--- a/arch/x86_64/mm/numa.c
+++ b/arch/x86_64/mm/numa.c
@@ -36,34 +36,36 @@ int numa_off __initdata;
 int __init compute_hash_shift(struct node *nodes, int numnodes)
 {
         int i; 
-        int shift = 24;
-        u64 addr;
+        int shift = 20;
+        unsigned long addr,maxend=0;
         
-        /* When in doubt use brute force. */
-        while (shift < 48) { 
-                memset(memnodemap,0xff,sizeof(*memnodemap) * NODEMAPSIZE); 
-                for (i = 0; i < numnodes; i++) {
-                        if (nodes[i].start == nodes[i].end) 
-                                continue;
-                        for (addr = nodes[i].start; 
-                             addr < nodes[i].end; 
-                             addr += (1UL << shift)) {
-                                if (memnodemap[addr >> shift] != 0xff && 
-                                    memnodemap[addr >> shift] != i) { 
-                                        printk(KERN_INFO 
-                                            "node %d shift %d addr %Lx conflict %d\n", 
-                                               i, shift, addr, memnodemap[addr>>shift]);
-                                        goto next; 
-                                } 
-                                memnodemap[addr >> shift] = i; 
+        for (i = 0; i < numnodes; i++)
+                if ((nodes[i].start != nodes[i].end) && (nodes[i].end > maxend))
+                                maxend = nodes[i].end;
+
+        while ((1UL << shift) <  (maxend / NODEMAPSIZE))
+                shift++;
+
+        printk (KERN_DEBUG"Using %d for the hash shift. Max adder is %lx \n",
+                        shift,maxend);
+        memset(memnodemap,0xff,sizeof(*memnodemap) * NODEMAPSIZE);
+        for (i = 0; i < numnodes; i++) {
+                if (nodes[i].start == nodes[i].end)
+                        continue;
+                for (addr = nodes[i].start;
+                     addr < nodes[i].end;
+                     addr += (1UL << shift)) {
+                        if (memnodemap[addr >> shift] != 0xff) {
+                                printk(KERN_INFO
+        "Your memory is not aligned you need to rebuild your kernel "
+        "with a bigger NODEMAPSIZE shift=%d adder=%lu\n",
+                                        shift,addr);
+                                return -1;
                         } 
+                        memnodemap[addr >> shift] = i;
                 } 
-                return shift; 
-        next:
-                shift++; 
         } 
-        memset(memnodemap,0,sizeof(*memnodemap) * NODEMAPSIZE); 
-        return -1; 
+        return shift;
 }
 
 #ifdef CONFIG_SPARSEMEM
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index 5d01b31472e1..8e3d097a9ddd 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -20,6 +20,9 @@
 
 static struct acpi_table_slit *acpi_slit;
 
+/* Internal processor count */
+static unsigned int __initdata num_processors = 0;
+
 static nodemask_t nodes_parsed __initdata;
 static nodemask_t nodes_found __initdata;
 static struct node nodes[MAX_NUMNODES] __initdata;
@@ -101,16 +104,18 @@ acpi_numa_processor_affinity_init(struct acpi_table_processor_affinity *pa)
                 bad_srat();
                 return;
         }
-        if (pa->apic_id >= NR_CPUS) {
-                printk(KERN_ERR "SRAT: lapic %u too large.\n",
-                       pa->apic_id);
+        if (num_processors >= NR_CPUS) {
+                printk(KERN_ERR "SRAT: Processor #%d (lapic %u) INVALID. (Max ID: %d).\n",
+                        num_processors, pa->apic_id, NR_CPUS);
                 bad_srat();
                 return;
         }
-        cpu_to_node[pa->apic_id] = node;
+        cpu_to_node[num_processors] = node;
         acpi_numa = 1;
-        printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n",
-               pxm, pa->apic_id, node);
+        printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> CPU %u -> Node %u\n",
+               pxm, pa->apic_id, num_processors, node);
+
+        num_processors++;
 }
 
 /* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
@@ -124,7 +129,6 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
 
         if (srat_disabled() || ma->flags.enabled == 0)
                 return;
-        /* hotplug bit is ignored for now */
         pxm = ma->proximity_domain;
         node = setup_node(pxm);
         if (node < 0) {
@@ -134,6 +138,10 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
         }
         start = ma->base_addr_lo | ((u64)ma->base_addr_hi << 32);
         end = start + (ma->length_lo | ((u64)ma->length_hi << 32));
+        /* It is fine to add this area to the nodes data it will be used later*/
+        if (ma->flags.hot_pluggable == 1)
+                printk(KERN_INFO "SRAT: hot plug zone found %lx - %lx \n",
+                                start, end);
         i = conflicting_nodes(start, end);
         if (i >= 0) {
                 printk(KERN_ERR