#ifdef CONFIG_BLOCK
struct writeback_control;
+struct readahead_control;
-int mpage_readpages(struct address_space *mapping, struct list_head *pages,
- unsigned nr_pages, get_block_t get_block);
+void mpage_readahead(struct readahead_control *, get_block_t get_block);
int mpage_readpage(struct page *page, get_block_t get_block);
int mpage_writepages(struct address_space *mapping,
struct writeback_control *wbc, get_block_t get_block);