extern void iounmap(volatile void __iomem *addr);
+extern void set_iounmap_nonlazy(void);
#ifdef __KERNEL__
unsigned long size);
extern void early_iounmap(void __iomem *addr, unsigned long size);
extern void fixup_early_ioremap(void);
+extern bool is_early_ioremap_ptep(pte_t *ptep);
#ifdef CONFIG_XEN
struct bio_vec;