pagemap: fix large pages in pagemap

	return swp_type(e) | (swp_offset(e) << MAX_SWAPFILES_SHIFT);

}

static unsigned long pte_to_pagemap_entry(pte_t pte)

{

	unsigned long pme = 0;

	if (is_swap_pte(pte))

		pme = PM_PFRAME(swap_pte_to_pagemap_entry(pte))

			| PM_PSHIFT(PAGE_SHIFT) | PM_SWAP;

	else if (pte_present(pte))

		pme = PM_PFRAME(pte_pfn(pte))

			| PM_PSHIFT(PAGE_SHIFT) | PM_PRESENT;

	return pme;

}

static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,

			     struct mm_walk *walk)

{

	struct vm_area_struct *vma;

	struct pagemapread *pm = walk->private;

	pte_t *pte;

	int err = 0;

	/* find the first VMA at or above 'addr' */

	vma = find_vma(walk->mm, addr);

	for (; addr != end; addr += PAGE_SIZE) {

		u64 pfn = PM_NOT_PRESENT;

		/* check to see if we've left 'vma' behind

		 * and need a new, higher one */

		if (vma && (addr >= vma->vm_end))

			vma = find_vma(walk->mm, addr);

		/* check that 'vma' actually covers this address,

		 * and that it isn't a huge page vma */

		if (vma && (vma->vm_start <= addr) &&

		    !is_vm_hugetlb_page(vma)) {

			pte = pte_offset_map(pmd, addr);

		if (is_swap_pte(*pte))

			pfn = PM_PFRAME(swap_pte_to_pagemap_entry(*pte))

				| PM_PSHIFT(PAGE_SHIFT) | PM_SWAP;

		else if (pte_present(*pte))

			pfn = PM_PFRAME(pte_pfn(*pte))

				| PM_PSHIFT(PAGE_SHIFT) | PM_PRESENT;

		/* unmap so we're not in atomic when we copy to userspace */

			pfn = pte_to_pagemap_entry(*pte);

			/* unmap before userspace copy */

			pte_unmap(pte);

		}

		err = add_to_pagemap(addr, pfn, pm);

		if (err)

			return err;