Hi John,
john.hubbard@xxxxxxxxx writes:
> diff --git a/arch/powerpc/mm/book3s64/iommu_api.c b/arch/powerpc/mm/book3s64/iommu_api.c
> index b056cae3388b..e126193ba295 100644
> --- a/arch/powerpc/mm/book3s64/iommu_api.c
> +++ b/arch/powerpc/mm/book3s64/iommu_api.c
> @@ -203,6 +202,7 @@ static void mm_iommu_unpin(struct mm_iommu_table_group_mem_t *mem)
> {
> long i;
> struct page *page = NULL;
> + bool dirty = false;
I don't think you need that initialisation do you?
> if (!mem->hpas)
> return;
> @@ -215,10 +215,9 @@ static void mm_iommu_unpin(struct mm_iommu_table_group_mem_t *mem)
> if (!page)
> continue;
>
> - if (mem->hpas[i] & MM_IOMMU_TABLE_GROUP_PAGE_DIRTY)
> - SetPageDirty(page);
> + dirty = mem->hpas[i] & MM_IOMMU_TABLE_GROUP_PAGE_DIRTY;
> - put_page(page);
> + put_user_pages_dirty_lock(&page, 1, dirty);
> mem->hpas[i] = 0;
> }
> }
cheers
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