linux-kernel - Re: [PATCH 1/7] Introduce the pagetable_operations and associated helper macros.

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Message-ID: <20070219194816.GM21484@holomorphy.com>
Date:	Mon, 19 Feb 2007 11:48:16 -0800
From:	William Lee Irwin III <wli@...omorphy.com>
To:	Adam Litke <agl@...ibm.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] Introduce the pagetable_operations and associated helper macros.

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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