Btrfs: Add back the online defragging code

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

1 files changed, 6 insertions, 8 deletions

diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c
index 3feac2f28628..d23216aa4ab5 100644
--- a/fs/btrfs/tree-defrag.c
+++ b/fs/btrfs/tree-defrag.c
@@ -116,10 +116,10 @@ static int defrag_walk_down(struct btrfs_trans_handle *trans,
         }
         WARN_ON(*level < 0);
         WARN_ON(*level >= BTRFS_MAX_LEVEL);
-#if 0
-        clear_buffer_defrag(path->nodes[*level]);
-        clear_buffer_defrag_done(path->nodes[*level]);
-#endif
+
+        btrfs_clear_buffer_defrag(path->nodes[*level]);
+        btrfs_clear_buffer_defrag_done(path->nodes[*level]);
+
         free_extent_buffer(path->nodes[*level]);
         path->nodes[*level] = NULL;
         *level += 1;
@@ -148,10 +148,8 @@ static int defrag_walk_up(struct btrfs_trans_handle *trans,
                         root->defrag_level = i;
                         return 0;
                 } else {
-                        /*
-                        clear_buffer_defrag(path->nodes[*level]);
-                        clear_buffer_defrag_done(path->nodes[*level]);
-                        */
+                        btrfs_clear_buffer_defrag(path->nodes[*level]);
+                        btrfs_clear_buffer_defrag_done(path->nodes[*level]);
                         free_extent_buffer(path->nodes[*level]);
                         path->nodes[*level] = NULL;
                         *level = i + 1;