Re: [PATCH v3 38/41] powerpc: convert put_page() to put_user_page*()
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2019-08-08 05:42:51
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Hi John, john.hubbard@gmail.com writes:
quoted hunk ↗ jump to hunk
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?
quoted hunk ↗ jump to hunk
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