1 files changed, 3 insertions, 0 deletions

diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 5836327ba5dd..5c3ff6d02fd7 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -61,6 +61,9 @@ struct btrfs_device {
         /* size of the device */
         u64 total_bytes;
 
+        /* size of the disk */
+        u64 disk_total_bytes;
+
         /* bytes used */
         u64 bytes_used;