#define flush_cache_vunmap(start, end) do { } while (0)
extern void flush_dcache_page(struct page *page);
+#define flush_dcache_mmap_lock(mapping) do { } while (0)
+#define flush_dcache_mmap_unlock(mapping) do { } while (0)
+
extern void __flush_icache_range(unsigned long, unsigned long);
extern void flush_icache_user_range(struct vm_area_struct *vma,
struct page *page, unsigned long addr,