enable kexec

[linux-2.6.git] / arch / ia64 / mm / init.c

diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index c0dfe9c..90fecb3 100644 (file)
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -63,6 +63,7 @@ check_pgt_cache (void)
        low = pgt_cache_water[0];
        high = pgt_cache_water[1];
 
+       preempt_disable();
        if (pgtable_cache_size > (u64) high) {
                do {
                        if (pgd_quicklist)
@@ -71,6 +72,7 @@ check_pgt_cache (void)
                                free_page((unsigned long)pmd_alloc_one_fast(0, 0));
                } while (pgtable_cache_size > (u64) low);
        }
+       preempt_enable();
 }
 
 void
@@ -123,15 +125,12 @@ ia64_init_addr_space (void)
         */
        vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
        if (vma) {
+               memset(vma, 0, sizeof(*vma));
                vma->vm_mm = current->mm;
                vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
                vma->vm_end = vma->vm_start + PAGE_SIZE;
                vma->vm_page_prot = protection_map[VM_DATA_DEFAULT_FLAGS & 0x7];
-               vma->vm_flags = VM_READ|VM_WRITE|VM_MAYREAD|VM_MAYWRITE|VM_GROWSUP;
-               vma->vm_ops = NULL;
-               vma->vm_pgoff = 0;
-               vma->vm_file = NULL;
-               vma->vm_private_data = NULL;
+               vma->vm_flags = VM_DATA_DEFAULT_FLAGS | VM_GROWSUP;
                insert_vm_struct(current->mm, vma);
        }
 
@@ -172,7 +171,7 @@ free_initrd_mem (unsigned long start, unsigned long end)
 {
        struct page *page;
        /*
-        * EFI uses 4KB pages while the kernel can use 4KB  or bigger.
+        * EFI uses 4KB pages while the kernel can use 4KB or bigger.
         * Thus EFI and the kernel may have different page sizes. It is
         * therefore possible to have the initrd share the same page as
         * the end of the kernel (given current setup).
@@ -219,8 +218,15 @@ free_initrd_mem (unsigned long start, unsigned long end)
        }
 }
 
+int page_is_ram(unsigned long pagenr)
+{
+      //FIXME: implement w/efi walk
+      printk("page is ram is called!!!!!\n");  
+      return 1;
+}
+
 /*
- * This is like put_dirty_page() but installs a clean page in the kernel's page table.
+ * This installs a clean page in the kernel's page table.
  */
 struct page *
 put_kernel_page (struct page *page, unsigned long address, pgprot_t pgprot)
@@ -275,11 +281,11 @@ setup_gate (void)
        ia64_patch_gate();
 }
 
-void __init
+void __devinit
 ia64_mmu_init (void *my_cpu_data)
 {
        unsigned long psr, pta, impl_va_bits;
-       extern void __init tlb_init (void);
+       extern void __devinit tlb_init (void);
        int cpu;
 
 #ifdef CONFIG_DISABLE_VHPT
@@ -343,6 +349,7 @@ ia64_mmu_init (void *my_cpu_data)
 
 #ifdef CONFIG_HUGETLB_PAGE
        ia64_set_rr(HPAGE_REGION_BASE, HPAGE_SHIFT << 2);
+       ia64_srlz_d();
 #endif
 
        cpu = smp_processor_id();
@@ -582,7 +589,7 @@ mem_init (void)
                if (!fsyscall_table[i] || nolwsys)
                        fsyscall_table[i] = sys_call_table[i] | 1;
        }
-       setup_gate();   /* setup gate pages before we free up boot memory... */
+       setup_gate();
 
 #ifdef CONFIG_IA32_SUPPORT
        ia32_boot_gdt_init();