block: Generalize change_cb() to BlockDevOps
So we can more easily add device model callbacks.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/block_int.h b/block_int.h
index adc26f8..ab31dc9 100644
--- a/block_int.h
+++ b/block_int.h
@@ -161,15 +161,14 @@
int encrypted; /* if true, the media is encrypted */
int valid_key; /* if true, a valid encryption key has been set */
int sg; /* if true, the device is a /dev/sg* */
- /* event callback when inserting/removing */
- void (*change_cb)(void *opaque, int reason);
- void *change_opaque;
BlockDriver *drv; /* NULL means no media */
void *opaque;
void *dev; /* attached device model, if any */
/* TODO change to DeviceState when all users are qdevified */
+ const BlockDevOps *dev_ops;
+ void *dev_opaque;
char filename[1024];
char backing_file[1024]; /* if non zero, the image is a diff of