vfs: add hooks for ext4's delayed allocation support

[safe/jmp/linux-2.6] / include / linux / mpage.h

diff --git a/include/linux/mpage.h b/include/linux/mpage.h
index 068a0c9..5c42821 100644 (file)
--- a/include/linux/mpage.h
+++ b/include/linux/mpage.h
@@ -11,11 +11,21 @@
  */
 #ifdef CONFIG_BLOCK
 
+struct mpage_data {
+       struct bio *bio;
+       sector_t last_block_in_bio;
+       get_block_t *get_block;
+       unsigned use_writepage;
+};
+
 struct writeback_control;
 
+struct bio *mpage_bio_submit(int rw, struct bio *bio);
 int mpage_readpages(struct address_space *mapping, struct list_head *pages,
                                unsigned nr_pages, get_block_t get_block);
 int mpage_readpage(struct page *page, get_block_t get_block);
+int __mpage_writepage(struct page *page, struct writeback_control *wbc,
+                     void *data);
 int mpage_writepages(struct address_space *mapping,
                struct writeback_control *wbc, get_block_t get_block);
 int mpage_writepage(struct page *page, get_block_t *get_block,