From 62264cb3c730a8a53f0c18e0deb761e85dbaa5d7 Mon Sep 17 00:00:00 2001
From: Muminul Islam <muislam@microsoft.com>
Date: Fri, 27 Mar 2026 23:49:28 -0700
Subject: [PATCH] block: Implement Resizable trait for RawFileDiskAio

Add disk_file::Resizable trait implementation for
RawFileDiskAio. Calls file.set_len(size) and wraps the
I/O error in BlockError on failure.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
---
 block/src/raw_async_aio.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/block/src/raw_async_aio.rs b/block/src/raw_async_aio.rs
index b12469312..7e7ff26c6 100644
--- a/block/src/raw_async_aio.rs
+++ b/block/src/raw_async_aio.rs
@@ -107,6 +107,14 @@ impl disk_file::SparseCapable for RawFileDiskAio {
     }
 }
 
+impl disk_file::Resizable for RawFileDiskAio {
+    fn resize(&mut self, size: u64) -> BlockResult<()> {
+        self.file
+            .set_len(size)
+            .map_err(|e| BlockError::new(BlockErrorKind::Io, DiskFileError::ResizeError(e)))
+    }
+}
+
 pub struct RawFileAsyncAio {
     fd: RawFd,
     ctx: aio::IoContext,