lkml.org 
[lkml]   [2018]   [Feb]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH RFC tip/lkmm 01/10] tools/memory-model: Clarify the origin/scope of the tool name
Date
From: Andrea Parri <parri.andrea@gmail.com>

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 clear that tools/memory-model/ uses the term "memory model" as
shorthand for "memory consistency model" by calling out this convention
in tools/memory-model/README.

Stick to the original "memory model" term in sources' headers and for
the subsystem name.

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
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 711cbe72d606..db3bd3fc0435 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@rowland.harvard.edu>
M: Andrea Parri <parri.andrea@gmail.com>
M: Will Deacon <will.deacon@arm.com>
diff --git a/tools/memory-model/README b/tools/memory-model/README
index 43ba49492111..91414a49fac5 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 57112505f5e0..b984bbda01a5 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 15b7a5dd8a9a..babe2b3b0bb3 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.
--
2.5.2
\
 
 \ /
  Last update: 2018-02-09 15:24    [W:0.101 / U:10.292 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site