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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-07-08 15:06:58 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-16 11:02:01 +0200 |
| commit | 836fe2f291cb450a6193fa713878efe7d32bec6e (patch) | |
| tree | 4fffc5218fd37fc79f0c127460b6a568608257be /arch | |
| parent | 8745f8b0b914cf1d617ecc49726c24011858c74e (diff) | |
| download | linux-3.10-836fe2f291cb450a6193fa713878efe7d32bec6e.tar.gz linux-3.10-836fe2f291cb450a6193fa713878efe7d32bec6e.tar.bz2 linux-3.10-836fe2f291cb450a6193fa713878efe7d32bec6e.zip | |
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')
| -rw-r--r-- | arch/x86/xen/mmu.c | 30 |
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, |