From df890599c20a9b29f4b266c9bde635531f9650da Mon Sep 17 00:00:00 2001
From: Muminul Islam <muislam@microsoft.com>
Date: Fri, 27 Mar 2026 23:48:31 -0700
Subject: [PATCH] block: Implement DiskFd trait for RawFileDiskAio

Add disk_file::DiskFd trait implementation for
RawFileDiskAio. Delegates to file.as_raw_fd() via
BorrowedDiskFd, taking &self instead of &mut self.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
---
 block/src/raw_async_aio.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/block/src/raw_async_aio.rs b/block/src/raw_async_aio.rs
index c627318cd..86b9271cf 100644
--- a/block/src/raw_async_aio.rs
+++ b/block/src/raw_async_aio.rs
@@ -86,6 +86,12 @@ impl disk_file::PhysicalSize for RawFileDiskAio {
     }
 }
 
+impl disk_file::DiskFd for RawFileDiskAio {
+    fn fd(&self) -> BorrowedDiskFd<'_> {
+        BorrowedDiskFd::new(self.file.as_raw_fd())
+    }
+}
+
 pub struct RawFileAsyncAio {
     fd: RawFd,
     ctx: aio::IoContext,