x86: cpa, micro-optimization

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 4 deletions

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 4f033505127e..bb55a78dcd62 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -237,6 +237,7 @@ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
         if (!SHARED_KERNEL_PMD) {
                 struct page *page;
 
+                address = __pa(address);
                 list_for_each_entry(page, &pgd_list, lru) {
                         pgd_t *pgd;
                         pud_t *pud;
@@ -351,7 +352,7 @@ out_unlock:
 
 static int split_large_page(pte_t *kpte, unsigned long address)
 {
-        unsigned long flags, addr, pfn, pfninc = 1;
+        unsigned long flags, pfn, pfninc = 1;
         gfp_t gfp_flags = GFP_KERNEL;
         unsigned int i, level;
         pte_t *pbase, *tmp;
@@ -374,8 +375,6 @@ static int split_large_page(pte_t *kpte, unsigned long address)
         if (tmp != kpte)
                 goto out_unlock;
 
-        address = __pa(address);
-        addr = address & PMD_PAGE_MASK;
         pbase = (pte_t *)page_address(base);
 #ifdef CONFIG_X86_32
         paravirt_alloc_pt(&init_mm, page_to_pfn(base));
@@ -386,7 +385,6 @@ static int split_large_page(pte_t *kpte, unsigned long address)
         if (level == PG_LEVEL_1G) {
                 pfninc = PMD_PAGE_SIZE >> PAGE_SHIFT;
                 pgprot_val(ref_prot) |= _PAGE_PSE;
-                addr &= PUD_PAGE_MASK;
         }
 #endif