On Mon, Feb 19, 2007 at 10:31:34AM -0800, Adam Litke wrote:

+struct pagetable_operations_struct {
+	int (*fault)(struct mm_struct *mm,
+		struct vm_area_struct *vma,
+		unsigned long address, int write_access);
+	int (*copy_vma)(struct mm_struct *dst, struct mm_struct *src,
+		struct vm_area_struct *vma);
+	int (*pin_pages)(struct mm_struct *mm, struct vm_area_struct *vma,
+		struct page **pages, struct vm_area_struct **vmas,
+		unsigned long *position, int *length, int i);
+	void (*change_protection)(struct vm_area_struct *vma,
+		unsigned long address, unsigned long end, pgprot_t newprot);
+	unsigned long (*unmap_page_range)(struct vm_area_struct *vma,
+		unsigned long address, unsigned long end, long *zap_work);
+	void (*free_pgtable_range)(struct mmu_gather **tlb,
+		unsigned long addr, unsigned long end,
+		unsigned long floor, unsigned long ceiling);
+};

I very very strongly approve of the approach this operations structure
entails.


-- wli

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