From e806202150fe50e71f765bb8f8a024c3c220e66f Mon Sep 17 00:00:00 2001
From: Raimo Niskanen <raimo@erlang.org>
Date: Mon, 26 Aug 2024 17:10:14 +0200
Subject: [PATCH] Use read_ahead in SSL for KTLS

---
 lib/ssl/src/inet_tls_dist.erl                    | 2 +-
 lib/ssl/test/inet_epmd_cryptcookie_inet_ktls.erl | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/ssl/src/inet_tls_dist.erl b/lib/ssl/src/inet_tls_dist.erl
index fddf17bddb19..776886e6fe32 100644
--- a/lib/ssl/src/inet_tls_dist.erl
+++ b/lib/ssl/src/inet_tls_dist.erl
@@ -945,7 +945,7 @@ inet_set_ktls(
             inet:setopts(
               Socket,
               [list, {packet, Packet}, {packet_size, PacketSize},
-               {header, Header}, {active, Active}])
+               {header, Header}, {read_ahead, true}, {active, Active}])
         of
             ok ->
                 ok;
diff --git a/lib/ssl/test/inet_epmd_cryptcookie_inet_ktls.erl b/lib/ssl/test/inet_epmd_cryptcookie_inet_ktls.erl
index d350cc81391a..2c06ad2fcb2a 100644
--- a/lib/ssl/test/inet_epmd_cryptcookie_inet_ktls.erl
+++ b/lib/ssl/test/inet_epmd_cryptcookie_inet_ktls.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2023. All Rights Reserved.
+%% Copyright Ericsson AB 2023-2024. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -57,7 +57,7 @@ listen_open(_NetAddress, Options) ->
      inet_epmd_dist:merge_options(
        Options,
        [{active, false}, {mode, binary}, {packet, 0},
-        inet_epmd_dist:nodelay()],
+        {read_ahead, false}, inet_epmd_dist:nodelay()],
        [])}.
 
 %% ------------------------------------------------------------
@@ -111,7 +111,7 @@ connect(NetAddress, _Timer, Options) ->
         inet_epmd_dist:merge_options(
           Options,
           [{active, false}, {mode, binary}, {packet, 0},
-           inet_epmd_dist:nodelay()],
+           {read_ahead, false}, inet_epmd_dist:nodelay()],
           []),
     #net_address{ address = {Ip, Port} } = NetAddress,
     maybe