Fix -snapshot deleting images on disk change

[qemu.git] / block.c

diff --git a/block.c b/block.c
index 49e6cbcd5246760cbb898b5da74241bd792b2d3d..452ae94eeab9d63b1900a9153d0c83d07270a672 100644 (file)
--- a/block.c
+++ b/block.c
@@ -1811,6 +1811,11 @@ int bdrv_can_snapshot(BlockDriverState *bs)
     return 1;
 }
 
+int bdrv_is_snapshot(BlockDriverState *bs)
+{
+    return !!(bs->open_flags & BDRV_O_SNAPSHOT);
+}
+
 BlockDriverState *bdrv_snapshots(void)
 {
     BlockDriverState *bs;