File 3431-Inline-always-required-layer-in-raw_file_io.patch of Package erlang

From b4198551e41a84207e2914316b0818fde50af9b0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Valim?= <jose.valim@dashbit.co>
Date: Tue, 4 Aug 2020 23:48:56 +0200
Subject: [PATCH] Inline always required layer in raw_file_io

The raw option is always available to raw_file_io:open/2
but the previous implementation made it look like it was
optional as the other layers. This commit inlines
raw_file_io_raw into raw_file_io so it is clear it always
ends up by calling prim_file:open/2.
---
 bootstrap/lib/kernel/ebin/kernel.app |  1 -
 lib/kernel/src/Makefile              |  1 -
 lib/kernel/src/kernel.app.src        |  1 -
 lib/kernel/src/raw_file_io.erl       | 12 ++++--------
 lib/kernel/src/raw_file_io_raw.erl   | 25 -------------------------
 5 files changed, 4 insertions(+), 36 deletions(-)
 delete mode 100644 lib/kernel/src/raw_file_io_raw.erl

diff --git a/bootstrap/lib/kernel/ebin/kernel.app b/bootstrap/lib/kernel/ebin/kernel.app
index 7288d0e0ba..0c43873cce 100644
--- a/bootstrap/lib/kernel/ebin/kernel.app
+++ b/bootstrap/lib/kernel/ebin/kernel.app
@@ -110,7 +110,6 @@
              raw_file_io_delayed,
              raw_file_io_inflate,
              raw_file_io_list,
-             raw_file_io_raw,
 	     seq_trace,
 	     standard_error,
 	     wrap_log_reader]},
diff --git a/lib/kernel/src/Makefile b/lib/kernel/src/Makefile
index 6c75bcffee..ccda3b8312 100644
--- a/lib/kernel/src/Makefile
+++ b/lib/kernel/src/Makefile
@@ -146,7 +146,6 @@ MODULES = \
 	raw_file_io_deflate \
 	raw_file_io_delayed \
 	raw_file_io_list \
-	raw_file_io_raw \
 	wrap_log_reader
 
 HRL_FILES= ../include/file.hrl ../include/inet.hrl ../include/inet_sctp.hrl \
diff --git a/lib/kernel/src/kernel.app.src b/lib/kernel/src/kernel.app.src
index e9f6049d5f..ec6d7743a3 100644
--- a/lib/kernel/src/kernel.app.src
+++ b/lib/kernel/src/kernel.app.src
@@ -111,7 +111,6 @@
              raw_file_io_delayed,
              raw_file_io_inflate,
              raw_file_io_list,
-             raw_file_io_raw,
 	     seq_trace,
 	     standard_error,
 	     wrap_log_reader]},
diff --git a/lib/kernel/src/raw_file_io.erl b/lib/kernel/src/raw_file_io.erl
index e3c07c8f78..8faaa6b37f 100644
--- a/lib/kernel/src/raw_file_io.erl
+++ b/lib/kernel/src/raw_file_io.erl
@@ -24,14 +24,13 @@
 open(Filename, Modes) ->
     %% Layers are applied in this order, and the listed modules will call this
     %% function again as necessary. eg. a raw compressed delayed file in list
-    %% mode will walk through [_list -> _compressed -> _delayed -> _raw].
+    %% mode will walk through [_list -> _compressed -> _delayed].
     ModuleOrder = [{raw_file_io_list, fun match_list/1},
                    {raw_file_io_compressed, fun match_compressed/1},
-                   {raw_file_io_delayed, fun match_delayed/1},
-                   {raw_file_io_raw, fun match_raw/1}],
+                   {raw_file_io_delayed, fun match_delayed/1}],
     open_1(ModuleOrder, Filename, add_implicit_modes(Modes)).
-open_1([], _Filename, _Modes) ->
-    error(badarg);
+open_1([], Filename, Modes) ->
+    prim_file:open(Filename, Modes);
 open_1([{Module, Match} | Rest], Filename, Modes) ->
     case lists:any(Match, Modes) of
         true ->
@@ -63,9 +62,6 @@ match_delayed({delayed_write, _Size, _Timeout}) -> true;
 match_delayed(delayed_write) -> true;
 match_delayed(_Other) -> false.
 
-match_raw(raw) -> true;
-match_raw(_Other) -> false.
-
 match_writable(write) -> true;
 match_writable(append) -> true;
 match_writable(exclusive) -> true;
diff --git a/lib/kernel/src/raw_file_io_raw.erl b/lib/kernel/src/raw_file_io_raw.erl
deleted file mode 100644
index 9a9fe78eb1..0000000000
--- a/lib/kernel/src/raw_file_io_raw.erl
+++ /dev/null
@@ -1,25 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2017. 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.
-%% You may obtain a copy of the License at
-%%
-%%     http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%
-%% %CopyrightEnd%
-%%
--module(raw_file_io_raw).
-
--export([open_layer/3]).
-
-open_layer(Filename, Modes, [raw]) ->
-    prim_file:open(Filename, [raw | Modes]).
-- 
2.26.2