[PATCH] ia64: fix free_huge_page() call in hugetlb_prefault()

In base kernel 2.6.7, there is bug in function hugetlb_prefault().  The
call to free_huge_page() is incorrect and should be replaced with a call
to page_cache_release().
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

arch/ia64/mm/hugetlbpage.c

@@ -297,7 +297,7 @@ int hugetlb_prefault(struct address_space *mapping, struct vm_area_struct *vma)
 				unlock_page(page);
 			} else {
 				hugetlb_put_quota(mapping);
-				free_huge_page(page);
+				page_cache_release(page);
 				goto out;
 			}
 		}