static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end,
			 unsigned int flags, struct page **pages, int *nr)
{
	return 0;
}
static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end,
			 unsigned int flags, struct page **pages, int *nr)
{
	return 0;
}