qemu-img: add dirty flag status

Some block drivers can verify their image files are clean or not. So we can show
it while using "qemu-img info".

Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/block.h b/block.h
index ea12f5df30..4e99e1816e 100644
--- a/block.h
+++ b/block.h
@@ -15,6 +15,7 @@ typedef struct BlockDriverInfo {
     int cluster_size;
     /* offset at which the VM state can be saved (0 if not possible) */
     int64_t vm_state_offset;
+    bool is_dirty;
 } BlockDriverInfo;
 
 typedef struct BlockFragInfo {