1 files changed, 7 insertions, 0 deletions

diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index fd4db5f810cf..190b07bc642b 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -51,4 +51,11 @@ int btrfs_buffer_uptodate(struct extent_buffer *buf);
 int btrfs_set_buffer_uptodate(struct extent_buffer *buf);
 int wait_on_tree_block_writeback(struct btrfs_root *root,
                                  struct extent_buffer *buf);
+void btrfs_set_buffer_defrag(struct extent_buffer *buf);
+void btrfs_set_buffer_defrag_done(struct extent_buffer *buf);
+int btrfs_buffer_defrag(struct extent_buffer *buf);
+int btrfs_buffer_defrag_done(struct extent_buffer *buf);
+int btrfs_clear_buffer_defrag(struct extent_buffer *buf);
+int btrfs_clear_buffer_defrag_done(struct extent_buffer *buf);
+int btrfs_read_buffer(struct extent_buffer *buf);
 #endif