1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 430b997a70f6..895789039ddd 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -173,7 +173,7 @@ int set_extent_buffer_uptodate(struct extent_map_tree *tree,
 int extent_buffer_uptodate(struct extent_map_tree *tree,
                            struct extent_buffer *eb);
 int map_extent_buffer(struct extent_buffer *eb, unsigned long offset,
-                      char **token, char **map,
+                      unsigned long min_len, char **token, char **map,
                       unsigned long *map_start,
                       unsigned long *map_len, int km);
 void unmap_extent_buffer(struct extent_buffer *eb, char *token, int km);