struct hstate *hstate;
};
+struct page *alloc_huge_page_node(struct hstate *h, int nid);
+
/* arch callback */
int __init alloc_bootmem_huge_page(struct hstate *h);
#else
struct hstate {};
+#define alloc_huge_page_node(h, nid) NULL
#define alloc_bootmem_huge_page(h) NULL
#define hstate_file(f) NULL
#define hstate_vma(v) NULL