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authorJeremy Fitzhardinge <jeremy@goop.org>2008-07-08 15:06:58 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-16 11:02:01 +0200
commit836fe2f291cb450a6193fa713878efe7d32bec6e (patch)
tree4fffc5218fd37fc79f0c127460b6a568608257be /arch/x86/xen
parent8745f8b0b914cf1d617ecc49726c24011858c74e (diff)
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@xensource.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/xen')
-rw-r--r--arch/x86/xen/mmu.c30
1 files changed, 1 insertions, 29 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index a8f02327181..eb31ed291b9 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -282,35 +282,7 @@ void xen_set_pmd(pmd_t *ptr, pmd_t val)
*/
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,