Btrfs: Defrag only leaves, and only when the parent node has a single objectid

This allows us to defrag huge directories, but skip the expensive defrag
case in more common usage, where it does not help as much.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 1af0a966f85b..37bccb1a9a75 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -913,7 +913,8 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
                       ins_len, int cow);
 int btrfs_realloc_node(struct btrfs_trans_handle *trans,
                        struct btrfs_root *root, struct extent_buffer *parent,
-                       int cache_only, u64 *last_ret);
+                       int start_slot, int cache_only, u64 *last_ret,
+                       struct btrfs_key *progress);
 void btrfs_release_path(struct btrfs_root *root, struct btrfs_path *p);
 struct btrfs_path *btrfs_alloc_path(void);
 void btrfs_free_path(struct btrfs_path *p);