Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Work around compilation warning in arch/x86/kernel/apm_32.c
  x86, UV: Complete IRQ interrupt migration in arch_enable_uv_irq()
  x86, 32-bit: Fix double accounting in reserve_top_address()
  x86: Don't use current_cpu_data in x2apic phys_pkg_id
  x86, UV: Fix UV apic mode
  x86, UV: Fix macros for accessing large node numbers
  x86, UV: Delete mapping of MMR rangs mapped by BIOS
  x86, UV: Handle missing blade-local memory correctly
  x86: fix assembly constraints in native_save_fl()
  x86, msr: execute on the correct CPU subset
  x86: Fix assert syntax in vmlinux.lds.S
  x86: Make 64-bit efi_ioremap use ioremap on MMIO regions
  x86: Add quirk to make Apple MacBook5,2 use reboot=pci
  x86: Fix CPA memtype reserving in the set_pages_array*() cases
  x86, pat: Fix set_memory_wc related corruption
  x86: fix section mismatch for i386 init code

2 files changed, 27 insertions, 13 deletions

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 1b734d7a8966..7e600c1962db 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -591,9 +591,12 @@ static int __change_page_attr(struct cpa_data *cpa, int primary)
         unsigned int level;
         pte_t *kpte, old_pte;
 
-        if (cpa->flags & CPA_PAGES_ARRAY)
-                address = (unsigned long)page_address(cpa->pages[cpa->curpage]);
-        else if (cpa->flags & CPA_ARRAY)
+        if (cpa->flags & CPA_PAGES_ARRAY) {
+                struct page *page = cpa->pages[cpa->curpage];
+                if (unlikely(PageHighMem(page)))
+                        return 0;
+                address = (unsigned long)page_address(page);
+        } else if (cpa->flags & CPA_ARRAY)
                 address = cpa->vaddr[cpa->curpage];
         else
                 address = *cpa->vaddr;
@@ -697,9 +700,12 @@ static int cpa_process_alias(struct cpa_data *cpa)
          * No need to redo, when the primary call touched the direct
          * mapping already:
          */
-        if (cpa->flags & CPA_PAGES_ARRAY)
-                vaddr = (unsigned long)page_address(cpa->pages[cpa->curpage]);
-        else if (cpa->flags & CPA_ARRAY)
+        if (cpa->flags & CPA_PAGES_ARRAY) {
+                struct page *page = cpa->pages[cpa->curpage];
+                if (unlikely(PageHighMem(page)))
+                        return 0;
+                vaddr = (unsigned long)page_address(page);
+        } else if (cpa->flags & CPA_ARRAY)
                 vaddr = cpa->vaddr[cpa->curpage];
         else
                 vaddr = *cpa->vaddr;
@@ -997,12 +1003,15 @@ EXPORT_SYMBOL(set_memory_array_uc);
 int _set_memory_wc(unsigned long addr, int numpages)
 {
         int ret;
+        unsigned long addr_copy = addr;
+
         ret = change_page_attr_set(&addr, numpages,
                                     __pgprot(_PAGE_CACHE_UC_MINUS), 0);
-
         if (!ret) {
-                ret = change_page_attr_set(&addr, numpages,
-                                    __pgprot(_PAGE_CACHE_WC), 0);
+                ret = change_page_attr_set_clr(&addr_copy, numpages,
+                                               __pgprot(_PAGE_CACHE_WC),
+                                               __pgprot(_PAGE_CACHE_MASK),
+                                               0, 0, NULL);
         }
         return ret;
 }
@@ -1119,7 +1128,9 @@ int set_pages_array_uc(struct page **pages, int addrinarray)
         int free_idx;
 
         for (i = 0; i < addrinarray; i++) {
-                start = (unsigned long)page_address(pages[i]);
+                if (PageHighMem(pages[i]))
+                        continue;
+                start = page_to_pfn(pages[i]) << PAGE_SHIFT;
                 end = start + PAGE_SIZE;
                 if (reserve_memtype(start, end, _PAGE_CACHE_UC_MINUS, NULL))
                         goto err_out;
@@ -1132,7 +1143,9 @@ int set_pages_array_uc(struct page **pages, int addrinarray)
 err_out:
         free_idx = i;
         for (i = 0; i < free_idx; i++) {
-                start = (unsigned long)page_address(pages[i]);
+                if (PageHighMem(pages[i]))
+                        continue;
+                start = page_to_pfn(pages[i]) << PAGE_SHIFT;
                 end = start + PAGE_SIZE;
                 free_memtype(start, end);
         }
@@ -1161,7 +1174,9 @@ int set_pages_array_wb(struct page **pages, int addrinarray)
                 return retval;
 
         for (i = 0; i < addrinarray; i++) {
-                start = (unsigned long)page_address(pages[i]);
+                if (PageHighMem(pages[i]))
+                        continue;
+                start = page_to_pfn(pages[i]) << PAGE_SHIFT;
                 end = start + PAGE_SIZE;
                 free_memtype(start, end);
         }
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index af8f9650058c..ed34f5e35999 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -329,7 +329,6 @@ void __init reserve_top_address(unsigned long reserve)
         printk(KERN_INFO "Reserving virtual address space above 0x%08x\n",
                (int)-reserve);
         __FIXADDR_TOP = -reserve - PAGE_SIZE;
-        __VMALLOC_RESERVE += reserve;
 #endif
 }