Btrfs: Optimize compressed writeback and reads

[linux-2.6-block.git] / fs / btrfs / extent_io.h

diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 283110ec4ee0f3da9937d64b83f263b80bf6e43e..2d5f67065b697afcb687ff61ddbbf5e9d7c774e4 100644 (file)
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -35,7 +35,8 @@ typedef       int (extent_submit_bio_hook_t)(struct inode *inode, int rw,
                                       unsigned long bio_flags);
 struct extent_io_ops {
        int (*fill_delalloc)(struct inode *inode, struct page *locked_page,
-                            u64 start, u64 end, int *page_started);
+                            u64 start, u64 end, int *page_started,
+                            unsigned long *nr_written);
        int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
        int (*writepage_io_hook)(struct page *page, u64 start, u64 end);
        extent_submit_bio_hook_t *submit_bio_hook;
@@ -172,6 +173,9 @@ int extent_invalidatepage(struct extent_io_tree *tree,
 int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
                          get_extent_t *get_extent,
                          struct writeback_control *wbc);
+int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
+                             u64 start, u64 end, get_extent_t *get_extent,
+                             int mode);
 int extent_writepages(struct extent_io_tree *tree,
                      struct address_space *mapping,
                      get_extent_t *get_extent,
@@ -256,6 +260,9 @@ int extent_range_uptodate(struct extent_io_tree *tree,
 int extent_clear_unlock_delalloc(struct inode *inode,
                                struct extent_io_tree *tree,
                                u64 start, u64 end, struct page *locked_page,
-                               int clear_dirty, int set_writeback,
-                               int clear_writeback);
+                               int unlock_page,
+                               int clear_unlock,
+                               int clear_delalloc, int clear_dirty,
+                               int set_writeback,
+                               int end_writeback);
 #endif