block: add helpers to run flush_dcache_page() against a bio and a request's pages
[linux-2.6.git] / arch / powerpc / include / asm / cacheflush.h
index ba667a3..ab9e402 100644 (file)
@@ -25,6 +25,7 @@
 #define flush_cache_vmap(start, end)           do { } while (0)
 #define flush_cache_vunmap(start, end)         do { } while (0)
 
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 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)