From 674985d9fb87c866d9219297fde35b2e32b40b0b Mon Sep 17 00:00:00 2001
From: Kruno Tomola Fabro <krunotf@gmail.com>
Date: Tue, 11 Aug 2020 20:51:02 +0200
Subject: [PATCH] fs: add comment explaing File flush is a no-op (#2761)

Signed-off-by: Kruno Tomola Fabro <krunotf@gmail.com>
---
 tokio/src/fs/file.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tokio/src/fs/file.rs b/tokio/src/fs/file.rs
index f3bc98546..c44196b3e 100644
--- a/tokio/src/fs/file.rs
+++ b/tokio/src/fs/file.rs
@@ -757,6 +757,7 @@ impl AsyncWrite for File {
     }
 
     fn poll_shutdown(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
+        // Flush is a noop for files so it's fine not to call it.
         Poll::Ready(Ok(()))
     }
 }