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authorThomas Gleixner <tglx@linutronix.de>2008-02-04 16:48:10 +0100
committerIngo Molnar <mingo@elte.hu>2008-02-04 16:48:10 +0100
commit7b610eec7a06ede64f71459e7f412dfd96f4cc5e (patch)
tree1fac616dd1a8bf7426b728e0c60212c5734386c9 /arch
parent87f7f8fe328388a1430a4c27cbe684f3925fd8a5 (diff)
x86: cpa, micro-optimization
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/mm/pageattr.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 4f033505127..bb55a78dcd6 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