[PATCH 1/2] tools/memory-model: clarify the origin/scope of the tool name

From: Andrea Parri
Date: Thu Feb 01 2018 - 07:04:20 EST


Ingo pointed out that:

"The "memory model" name is overly generic, ambiguous and somewhat
misleading, as we usually mean the virtual memory layout/model
when we say "memory model". GCC too uses it in that sense [...]"

Make it clearer that, in the context of tools/memory-model/, the term
"memory-model" is used as shorthand for "memory consistency model" by
calling out this convention in tools/memory-model/README.

Stick to the full name in sources' headers and for the subsystem name.

Suggested-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Andrea Parri <parri.andrea@xxxxxxxxx>
---
tools/memory-model/MAINTAINERS | 2 +-
tools/memory-model/README | 14 +++++++-------
tools/memory-model/linux-kernel.bell | 2 +-
tools/memory-model/linux-kernel.cat | 2 +-
4 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/tools/memory-model/MAINTAINERS b/tools/memory-model/MAINTAINERS
index 711cbe72d6066..db3bd3fc0435b 100644
--- a/tools/memory-model/MAINTAINERS
+++ b/tools/memory-model/MAINTAINERS
@@ -1,4 +1,4 @@
-LINUX KERNEL MEMORY MODEL
+LINUX KERNEL MEMORY CONSISTENCY MODEL
M: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
M: Andrea Parri <parri.andrea@xxxxxxxxx>
M: Will Deacon <will.deacon@xxxxxxx>
diff --git a/tools/memory-model/README b/tools/memory-model/README
index 43ba49492111c..91414a49fac53 100644
--- a/tools/memory-model/README
+++ b/tools/memory-model/README
@@ -1,15 +1,15 @@
- =========================
- LINUX KERNEL MEMORY MODEL
- =========================
+ =====================================
+ LINUX KERNEL MEMORY CONSISTENCY MODEL
+ =====================================

============
INTRODUCTION
============

-This directory contains the memory model of the Linux kernel, written
-in the "cat" language and executable by the (externally provided)
-"herd7" simulator, which exhaustively explores the state space of
-small litmus tests.
+This directory contains the memory consistency model (memory model, for
+short) of the Linux kernel, written in the "cat" language and executable
+by the externally provided "herd7" simulator, which exhaustively explores
+the state space of small litmus tests.

In addition, the "klitmus7" tool (also externally provided) may be used
to convert a litmus test to a Linux kernel module, which in turn allows
diff --git a/tools/memory-model/linux-kernel.bell b/tools/memory-model/linux-kernel.bell
index 57112505f5e03..b984bbda01a5c 100644
--- a/tools/memory-model/linux-kernel.bell
+++ b/tools/memory-model/linux-kernel.bell
@@ -11,7 +11,7 @@
* which is to appear in ASPLOS 2018.
*)

-"Linux kernel memory model"
+"Linux-kernel memory consistency model"

enum Accesses = 'once (*READ_ONCE,WRITE_ONCE,ACCESS_ONCE*) ||
'release (*smp_store_release*) ||
diff --git a/tools/memory-model/linux-kernel.cat b/tools/memory-model/linux-kernel.cat
index 15b7a5dd8a9af..babe2b3b0bb32 100644
--- a/tools/memory-model/linux-kernel.cat
+++ b/tools/memory-model/linux-kernel.cat
@@ -11,7 +11,7 @@
* which is to appear in ASPLOS 2018.
*)

-"Linux kernel memory model"
+"Linux-kernel memory consistency model"

(*
* File "lock.cat" handles locks and is experimental.
--
2.7.4