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

[linux-2.6] / arch / x86_64 / mm / init.c

diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index 1336da8bdee125f5b0ba227360d89c4709264323..38f5d63680060769a58b7ac607f9085b6acf19d3 100644 (file)
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -79,6 +79,8 @@ void show_mem(void)
                        if (unlikely(i % MAX_ORDER_NR_PAGES == 0)) {
                                touch_nmi_watchdog();
                        }
+                       if (!pfn_valid(pgdat->node_start_pfn + i))
+                               continue;
                        page = pfn_to_page(pgdat->node_start_pfn + i);
                        total++;
                        if (PageReserved(page))
@@ -381,7 +383,7 @@ void __meminit init_memory_mapping(unsigned long start, unsigned long end)
        } 
 
        if (!after_bootmem)
-               asm volatile("movq %%cr4,%0" : "=r" (mmu_cr4_features));
+               mmu_cr4_features = read_cr4();
        __flush_tlb_all();
 }
 
@@ -598,11 +600,6 @@ void mark_rodata_ro(void)
 {
        unsigned long start = (unsigned long)_stext, end;
 
-#ifdef CONFIG_HOTPLUG_CPU
-       /* It must still be possible to apply SMP alternatives. */
-       if (num_possible_cpus() > 1)
-               start = (unsigned long)_etext;
-#endif
        end = (unsigned long)__end_rodata;
        start = (start + PAGE_SIZE - 1) & PAGE_MASK;
        end &= PAGE_MASK;
@@ -690,41 +687,6 @@ int kern_addr_valid(unsigned long addr)
        return pfn_valid(pte_pfn(*pte));
 }
 
-#ifdef CONFIG_SYSCTL
-#include <linux/sysctl.h>
-
-extern int exception_trace, page_fault_trace;
-
-static ctl_table debug_table2[] = {
-       {
-               .ctl_name       = 99,
-               .procname       = "exception-trace",
-               .data           = &exception_trace,
-               .maxlen         = sizeof(int),
-               .mode           = 0644,
-               .proc_handler   = proc_dointvec
-       },
-       {}
-}; 
-
-static ctl_table debug_root_table2[] = { 
-       {
-               .ctl_name = CTL_DEBUG,
-               .procname = "debug",
-               .mode = 0555,
-               .child = debug_table2
-       },
-       {}
-}; 
-
-static __init int x8664_sysctl_init(void)
-{ 
-       register_sysctl_table(debug_root_table2);
-       return 0;
-}
-__initcall(x8664_sysctl_init);
-#endif
-
 /* A pseudo VMA to allow ptrace access for the vsyscall page.  This only
    covers the 64bit vsyscall page now. 32bit has a real VMA now and does
    not need special handling anymore. */
@@ -761,3 +723,18 @@ int in_gate_area_no_task(unsigned long addr)
 {
        return (addr >= VSYSCALL_START) && (addr < VSYSCALL_END);
 }
+
+void * __init alloc_bootmem_high_node(pg_data_t *pgdat, unsigned long size)
+{
+       return __alloc_bootmem_core(pgdat->bdata, size,
+                       SMP_CACHE_BYTES, (4UL*1024*1024*1024), 0);
+}
+
+const char *arch_vma_name(struct vm_area_struct *vma)
+{
+       if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
+               return "[vdso]";
+       if (vma == &gate_vma)
+               return "[vsyscall]";
+       return NULL;
+}