From b69bd219fa6284aefc341cf97b184097abdde875 Mon Sep 17 00:00:00 2001
From: Anatol Belski <anbelski@linux.microsoft.com>
Date: Tue, 24 Mar 2026 17:11:36 +0100
Subject: [PATCH] vmm: Switch fixed VHD async to DiskBackend::Next

Wire FixedVhdDiskAsync through the new composable trait system.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
---
 vmm/src/device_manager.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/vmm/src/device_manager.rs b/vmm/src/device_manager.rs
index 26bc24dbc..4699d7231 100644
--- a/vmm/src/device_manager.rs
+++ b/vmm/src/device_manager.rs
@@ -2722,10 +2722,10 @@ impl DeviceManager {
                         unreachable!("Checked in if statement above");
                         #[cfg(feature = "io_uring")]
                         {
-                            DiskBackend::Legacy(Box::new(
+                            DiskBackend::Next(Box::new(
                                 FixedVhdDiskAsync::new(file)
                                     .map_err(DeviceManagerError::CreateFixedVhdDiskAsync)?,
-                            ) as Box<dyn DiskFile>)
+                            ))
                         }
                     } else {
                         info!("Using synchronous fixed VHD disk file");