1 files changed, 4 insertions, 0 deletions

diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index b30d018fa359..f79d532fedb0 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -95,6 +95,8 @@ struct btrfs_device {
          */
         u64 commit_total_bytes;
 
+        /* bytes used on the current transaction */
+        u64 commit_bytes_used;
         /*
          * used to manage the device which is resized
          *
@@ -420,4 +422,6 @@ static inline void btrfs_dev_stat_reset(struct btrfs_device *dev,
 }
 
 void btrfs_update_commit_device_size(struct btrfs_fs_info *fs_info);
+void btrfs_update_commit_device_bytes_used(struct btrfs_root *root,
+                                        struct btrfs_transaction *transaction);
 #endif