[PATCH] ia64: make hugetlb support work again

arch/ia64/kernel/sys_ia64.c

@@ -16,6 +16,7 @@
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
 #include <linux/highuid.h>
+#include <linux/hugetlb.h>
 
 #include <asm/shmparam.h>
 #include <asm/uaccess.h>

arch/ia64/mm/hugetlbpage.c

@@ -242,7 +242,7 @@ int hugetlb_prefault(struct address_space *mapping, struct vm_area_struct *vma)
 				ret = -ENOMEM;
 				goto out;
 			}
-			add_to_page_cache(page, mapping, idx);
+			add_to_page_cache(page, mapping, idx, GFP_ATOMIC);
 			unlock_page(page);
 		}
 		set_huge_pte(mm, vma, page, pte, vma->vm_flags & VM_WRITE);