Btrfs: Add readpages support

[deliverable/linux.git] / fs / btrfs / extent_map.h

diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 0b0dcf19fe45f0f99bc827cf870dcf74dcb1ffa3..fbd23a72f53b6dd6a1eb9f654ef1f080f1658e2c 100644 (file)
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -140,6 +140,10 @@ int extent_writepages(struct extent_map_tree *tree,
                      struct address_space *mapping,
                      get_extent_t *get_extent,
                      struct writeback_control *wbc);
+int extent_readpages(struct extent_map_tree *tree,
+                    struct address_space *mapping,
+                    struct list_head *pages, unsigned nr_pages,
+                    get_extent_t get_extent);
 int extent_prepare_write(struct extent_map_tree *tree,
                         struct inode *inode, struct page *page,
                         unsigned from, unsigned to, get_extent_t *get_extent);