diff --git a/fs/btrfs/locking.h b/fs/btrfs/locking.h
index ca52681e5f4049c45f2a228a3f8237ca23815772..b81e0e9a48941891681eef385d10d071f6cbe51b 100644
--- a/fs/btrfs/locking.h
+++ b/fs/btrfs/locking.h
@@ -26,7 +26,6 @@
 
 void btrfs_tree_lock(struct extent_buffer *eb);
 void btrfs_tree_unlock(struct extent_buffer *eb);
-int btrfs_try_spin_lock(struct extent_buffer *eb);
 
 void btrfs_tree_read_lock(struct extent_buffer *eb);
 void btrfs_tree_read_unlock(struct extent_buffer *eb);