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| author | Thomas Gleixner <tglx@linutronix.de> | 2008-02-04 16:48:10 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-02-04 16:48:10 +0100 |
| commit | 7b610eec7a06ede64f71459e7f412dfd96f4cc5e (patch) | |
| tree | 1fac616dd1a8bf7426b728e0c60212c5734386c9 | |
| parent | 87f7f8fe328388a1430a4c27cbe684f3925fd8a5 (diff) | |
| download | kernel_samsung_crespo-7b610eec7a06ede64f71459e7f412dfd96f4cc5e.zip kernel_samsung_crespo-7b610eec7a06ede64f71459e7f412dfd96f4cc5e.tar.gz kernel_samsung_crespo-7b610eec7a06ede64f71459e7f412dfd96f4cc5e.tar.bz2 | |
x86: cpa, micro-optimization
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/mm/pageattr.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 4f03350..bb55a78 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 |