ping... On 2014/5/26 20:13, Yijing Wang wrote: > Signed-off-by: Yijing Wang <[email protected]> > --- > drivers/iommu/intel-iommu.c | 6 ++---- > 1 files changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c > index f256ffc..7b7127a 100644 > --- a/drivers/iommu/intel-iommu.c > +++ b/drivers/iommu/intel-iommu.c > @@ -848,13 +848,11 @@ static struct dma_pte *pfn_to_dma_pte(struct > dmar_domain *domain, > > domain_flush_cache(domain, tmp_page, VTD_PAGE_SIZE); > pteval = ((uint64_t)virt_to_dma_pfn(tmp_page) << > VTD_PAGE_SHIFT) | DMA_PTE_READ | DMA_PTE_WRITE; > - if (cmpxchg64(&pte->val, 0ULL, pteval)) { > + if (cmpxchg64(&pte->val, 0ULL, pteval)) > /* Someone else set it while we were thinking; > use theirs. */ > free_pgtable_page(tmp_page); > - } else { > - dma_pte_addr(pte); > + else > domain_flush_cache(domain, pte, sizeof(*pte)); > - } > } > if (level == 1) > break; >
-- Thanks! Yijing _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
