block: Lift device model API into BlockBackend
Move device model attachment / detachment and the BlockDevOps device
model callbacks and their wrappers from BlockDriverState to
BlockBackend.
Wrapper calls in block.c change from
bdrv_dev_FOO_cb(bs, ...)
to
if (bs->blk) {
bdrv_dev_FOO_cb(bs->blk, ...);
}
No change, because both bdrv_dev_change_media_cb() and
bdrv_dev_resize_cb() do nothing when no device model is attached, and
a device model can be attached only when bs->blk.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/include/block/block_int.h b/include/block/block_int.h
index e8e33a8..8898c6c 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -326,11 +326,6 @@
BlockBackend *blk; /* owning backend, if any */
- void *dev; /* attached device model, if any */
- /* TODO change to DeviceState when all users are qdevified */
- const BlockDevOps *dev_ops;
- void *dev_opaque;
-
AioContext *aio_context; /* event loop used for fd handlers, timers, etc */
/* long-running tasks intended to always use the same AioContext as this
* BDS may register themselves in this list to be notified of changes
@@ -587,4 +582,11 @@
BlockCompletionFunc *cb, void *opaque,
Error **errp);
+void blk_dev_change_media_cb(BlockBackend *blk, bool load);
+bool blk_dev_has_removable_media(BlockBackend *blk);
+void blk_dev_eject_request(BlockBackend *blk, bool force);
+bool blk_dev_is_tray_open(BlockBackend *blk);
+bool blk_dev_is_medium_locked(BlockBackend *blk);
+void blk_dev_resize_cb(BlockBackend *blk);
+
#endif /* BLOCK_INT_H */
