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Subject[tip:locking/core] tools/memory-model: Clarify the origin/scope of the tool name
Commit-ID:  48d44d4e8a583c66d9f376e18c1a1fcc445f4b64
Gitweb: https://git.kernel.org/tip/48d44d4e8a583c66d9f376e18c1a1fcc445f4b64
Author: Andrea Parri <parri.andrea@gmail.com>
AuthorDate: Tue, 20 Feb 2018 15:25:01 -0800
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 21 Feb 2018 09:58:12 +0100

tools/memory-model: Clarify the origin/scope of the tool name

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>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: akiyks@gmail.com
Cc: boqun.feng@gmail.com
Cc: dhowells@redhat.com
Cc: j.alglave@ucl.ac.uk
Cc: linux-arch@vger.kernel.org
Cc: luc.maranget@inria.fr
Cc: nborisov@suse.com
Cc: npiggin@gmail.com
Link: http://lkml.kernel.org/r/1519169112-20593-1-git-send-email-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
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 711cbe7..db3bd3f 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 43ba494..91414a4 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 5711250..b984bbd 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 15b7a5d..babe2b3 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.
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