1 files changed, 7 insertions, 0 deletions

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 8ecac2e77a43..6675e916ebcd 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -539,6 +539,13 @@ struct btrfs_fs_info {
         atomic_t nr_async_submits;
 
         /*
+         * this is used by the balancing code to wait for all the pending
+         * ordered extents
+         */
+        spinlock_t ordered_extent_lock;
+        struct list_head ordered_extents;
+
+        /*
          * there is a pool of worker threads for checksumming during writes
          * and a pool for checksumming after reads.  This is because readers
          * can run with FS locks held, and the writers may be waiting for