From 6261cad0d8da1124e4460cbded8a259cecbb993f Mon Sep 17 00:00:00 2001
From: Muminul Islam <muislam@microsoft.com>
Date: Tue, 24 Mar 2026 18:22:56 -0700
Subject: [PATCH] block: Add DiskFileError::Clone variant

Add a Clone variant to DiskFileError for error handling in
the upcoming AsyncDiskFile::try_clone() implementations.

This variant will be used by RawFileDisk and RawFileDiskSync
when cloning the underlying file descriptor fails.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
---
 block/src/async_io.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/block/src/async_io.rs b/block/src/async_io.rs
index fe3349e6a..2d8ea3787 100644
--- a/block/src/async_io.rs
+++ b/block/src/async_io.rs
@@ -24,6 +24,8 @@ pub enum DiskFileError {
     /// Resize failed
     #[error("Resize failed")]
     ResizeError(#[source] std::io::Error),
+    #[error("Failed cloning disk file")]
+    Clone(#[source] std::io::Error),
 }
 
 pub type DiskFileResult<T> = std::result::Result<T, DiskFileError>;