From 652bd403b81c62e00eed347c4aebad2a62e573b5 Mon Sep 17 00:00:00 2001
From: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Date: Thu, 8 May 2025 12:31:45 +0000
Subject: [PATCH] Fix AsRawFd trait bound and error handling in ftruncate
 implementation

Co-Authored-By: christian@neon.tech <christian@neon.tech>
---
 .../src/virtual_file/io_engine/tokio_epoll_uring_ext.rs       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pageserver/src/virtual_file/io_engine/tokio_epoll_uring_ext.rs b/pageserver/src/virtual_file/io_engine/tokio_epoll_uring_ext.rs
index 6e3014b1c2..32c2f09a8d 100644
--- a/pageserver/src/virtual_file/io_engine/tokio_epoll_uring_ext.rs
+++ b/pageserver/src/virtual_file/io_engine/tokio_epoll_uring_ext.rs
@@ -201,7 +201,7 @@ impl std::ops::Deref for Handle {
 }
 
 impl Handle {
-    pub async fn ftruncate<F: tokio_epoll_uring::IoFd + Send>(
+    pub async fn ftruncate<F: tokio_epoll_uring::IoFd + Send + std::os::unix::io::AsRawFd>(
         &self,
         file: F,
         len: u64,
@@ -214,6 +214,6 @@ impl Handle {
         let res = std_file.set_len(len);
         let _ = std_file.into_raw_fd();
         
-        (file, res.map_err(tokio_epoll_uring::Error::Io))
+        (file, res.map_err(|e| tokio_epoll_uring::Error::System(e)))
     }
 }