if (REGION_NUMBER(addr) != REGION_HPAGE) 
if (REGION_NUMBER(addr) != RGN_HPAGE) 
struct page *follow_huge_addr(struct mm_struct *mm, unsigned long addr, int write){	struct page *page;	pte_t *ptep;	if (REGION_NUMBER(addr) != REGION_HPAGE)		return ERR_PTR(-EINVAL);	ptep = huge_pte_offset(mm, addr);	if (!ptep || pte_none(*ptep))		return NULL;	page = pte_page(*ptep);	page += ((addr & ~HPAGE_MASK) >> PAGE_SHIFT);	return page;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/0a41e2501160587eb8f66cef3bdf1c6f2cb86997/hugetlbpage.c/clean/arch/ia64/mm/hugetlbpage.c