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Date: Tue, 08 Jul 2008 15:06:58 -0700 From: Jeremy Fitzhardinge <jeremy@...p.org> To: Ingo Molnar <mingo@...e.hu> Cc: LKML <linux-kernel@...r.kernel.org>, x86@...nel.org, Stephen Tweedie <sct@...hat.com>, Eduardo Habkost <ehabkost@...hat.com>, Mark McLoughlin <markmc@...hat.com>, x86@...nel.org Subject: [PATCH 36 of 55] xen: use set_pte_vaddr Make Xen's set_pte_mfn() use set_pte_vaddr rather than copying it. Signed-off-by: Jeremy Fitzhardinge <jeremy@...source.com> Signed-off-by: Juan Quintela <quintela@...hat.com> Signed-off-by: Mark McLoughlin <markmc@...hat.com> --- arch/x86/xen/mmu.c | 30 +----------------------------- 1 file changed, 1 insertion(+), 29 deletions(-) diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -282,35 +282,7 @@ */ void set_pte_mfn(unsigned long vaddr, unsigned long mfn, pgprot_t flags) { - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - - pgd = swapper_pg_dir + pgd_index(vaddr); - if (pgd_none(*pgd)) { - BUG(); - return; - } - pud = pud_offset(pgd, vaddr); - if (pud_none(*pud)) { - BUG(); - return; - } - pmd = pmd_offset(pud, vaddr); - if (pmd_none(*pmd)) { - BUG(); - return; - } - pte = pte_offset_kernel(pmd, vaddr); - /* <mfn,flags> stored as-is, to permit clearing entries */ - xen_set_pte(pte, mfn_pte(mfn, flags)); - - /* - * It's enough to flush this one mapping. - * (PGE mappings get flushed as well) - */ - __flush_tlb_one(vaddr); + set_pte_vaddr(vaddr, mfn_pte(mfn, flags)); } void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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