1 files changed, 1 insertions, 0 deletions
diff --git a/block_int.h b/block_int.h
index 8a7b6cbb42..efb68038c4 100644
--- a/block_int.h
+++ b/block_int.h
@@ -86,6 +86,7 @@ struct BlockDriver {
     const char *protocol_name;
     int (*bdrv_truncate)(BlockDriverState *bs, int64_t offset);
     int64_t (*bdrv_getlength)(BlockDriverState *bs);
+    int64_t (*bdrv_get_allocated_file_size)(BlockDriverState *bs);
     int (*bdrv_write_compressed)(BlockDriverState *bs, int64_t sector_num,
                                  const uint8_t *buf, int nb_sectors);