From b118569268e4b9f47757f0920aab353675af2da0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20Mi=C4=85sko?= <tomasz.miasko@gmail.com>
Date: Sun, 19 Feb 2023 00:00:00 +0000
Subject: [PATCH] Use custom implementation of read_buf in Read for &'a
 FileDesc

This allows to skip an unnecessary buffer initialization.
---
 library/std/src/sys/unix/fd.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/library/std/src/sys/unix/fd.rs b/library/std/src/sys/unix/fd.rs
index dbaa3c33e2e57..ab57fba6c9f27 100644
--- a/library/std/src/sys/unix/fd.rs
+++ b/library/std/src/sys/unix/fd.rs
@@ -284,6 +284,10 @@ impl<'a> Read for &'a FileDesc {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
         (**self).read(buf)
     }
+
+    fn read_buf(&mut self, cursor: BorrowedCursor<'_>) -> io::Result<()> {
+        (**self).read_buf(cursor)
+    }
 }
 
 impl AsInner<OwnedFd> for FileDesc {