1 files changed, 1 insertions, 0 deletions
diff --git a/block.h b/block.h
index a966afb090..302010d953 100644
--- a/block.h
+++ b/block.h
@@ -136,6 +136,7 @@ int bdrv_get_type_hint(BlockDriverState *bs);
 int bdrv_get_translation_hint(BlockDriverState *bs);
 int bdrv_is_removable(BlockDriverState *bs);
 int bdrv_is_read_only(BlockDriverState *bs);
+int bdrv_set_read_only(BlockDriverState *bs, int read_only);
 int bdrv_is_sg(BlockDriverState *bs);
 int bdrv_enable_write_cache(BlockDriverState *bs);
 int bdrv_is_inserted(BlockDriverState *bs);