linux-arch.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Alan Stern <stern@rowland.harvard.edu>
To: paulmck@kernel.org
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
	kernel-team@fb.com, mingo@kernel.org, parri.andrea@gmail.com,
	will@kernel.org, peterz@infradead.org, boqun.feng@gmail.com,
	npiggin@gmail.com, dhowells@redhat.com, j.alglave@ucl.ac.uk,
	luc.maranget@inria.fr, akiyks@gmail.com
Subject: Re: [PATCH memory-model 3/8] tools/memory-model: Document categories of ordering primitives
Date: Fri, 6 Nov 2020 11:56:54 -0500	[thread overview]
Message-ID: <20201106165654.GB47039@rowland.harvard.edu> (raw)
In-Reply-To: <20201105220017.15410-3-paulmck@kernel.org>

On Thu, Nov 05, 2020 at 02:00:12PM -0800, paulmck@kernel.org wrote:
> From: "Paul E. McKenney" <paulmck@kernel.org>
> 
> The Linux kernel has a number of categories of ordering primitives, which
> are recorded in the LKMM implementation and hinted at by cheatsheet.txt.
> But there is no overview of these categories, and such an overview
> is needed in order to understand multithreaded LKMM litmus tests.
> This commit therefore adds an ordering.txt as well as extracting a
> control-dependencies.txt from memory-barriers.txt.  It also updates the
> README file.
> 
> [ paulmck:  Apply Akira Yokosawa file-placement feedback. ]
> [ paulmck:  Apply Alan Stern feedback. ]
> [ paulmck:  Apply self-review feedback. ]
> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
> ---
> diff --git a/tools/memory-model/Documentation/README b/tools/memory-model/Documentation/README
> index 2d9539f..a50ea81 100644
> --- a/tools/memory-model/Documentation/README
> +++ b/tools/memory-model/Documentation/README

> @@ -41,13 +50,21 @@ README
>  cheatsheet.txt
>  	Quick-reference guide to the Linux-kernel memory model.
>  
> +control-dependencies.txt
> +	Guide to preventing compiler optimizations from destroying
> +	your control dependencies.
> +
>  explanation.txt
> -	Detailed description of the memory model.
> +	Detailed description of the memory model in detail.

A redundantly redundant change.

Alan

  reply	other threads:[~2020-11-06 16:57 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-05 21:59 [PATCH memory-model 0/8] LKMM updates for v5.11 Paul E. McKenney
2020-11-05 22:00 ` [PATCH memory-model 1/8] tools: memory-model: Document that the LKMM can easily miss control dependencies paulmck
2020-11-05 22:00 ` [PATCH memory-model 2/8] tools/memory-model: Move Documentation description to Documentation/README paulmck
2020-11-05 22:00 ` [PATCH memory-model 3/8] tools/memory-model: Document categories of ordering primitives paulmck
2020-11-06 16:56   ` Alan Stern [this message]
2020-11-06 19:11     ` Paul E. McKenney
2020-11-05 22:00 ` [PATCH memory-model 4/8] docs/memory-barriers.txt: Fix a typo in CPU MEMORY BARRIERS section paulmck
2020-11-05 22:00 ` [PATCH memory-model 5/8] tools/memory-model: Add a glossary of LKMM terms paulmck
2020-11-06  1:47   ` Boqun Feng
2020-11-06 18:01     ` Paul E. McKenney
2020-11-07  3:07       ` Boqun Feng
2020-11-06 16:59   ` Alan Stern
2020-11-06 18:04     ` Paul E. McKenney
2020-11-06 19:23       ` Alan Stern
2020-11-06 19:59         ` Paul E. McKenney
2020-11-06 20:40           ` Alan Stern
2020-11-06 21:04             ` Paul E. McKenney
2020-11-07  2:32               ` Alan Stern
2020-11-05 22:00 ` [PATCH memory-model 6/8] tools/memory-model: Add types to litmus tests paulmck
2020-11-05 22:41   ` Akira Yokosawa
2020-11-05 22:56     ` Paul E. McKenney
2020-11-25 11:34       ` Akira Yokosawa
2020-11-27 15:46         ` Paul E. McKenney
2020-11-28  5:56           ` Akira Yokosawa
2020-11-28  6:00             ` [PATCH 1/2] tools/memory-model: Remove redundant initialization in " Akira Yokosawa
2020-11-28  6:01             ` [PATCH 2/2] tools/memory-model: Fix typo in klitmus7 compatibility table Akira Yokosawa
2020-11-29  3:33               ` Paul E. McKenney
2020-11-05 22:00 ` [PATCH memory-model 7/8] tools/memory-model: Use "buf" and "flag" for message-passing tests paulmck
2020-11-05 22:00 ` [PATCH memory-model 8/8] tools/memory-model: Label MP tests' producers and consumers paulmck

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20201106165654.GB47039@rowland.harvard.edu \
    --to=stern@rowland.harvard.edu \
    --cc=akiyks@gmail.com \
    --cc=boqun.feng@gmail.com \
    --cc=dhowells@redhat.com \
    --cc=j.alglave@ucl.ac.uk \
    --cc=kernel-team@fb.com \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=luc.maranget@inria.fr \
    --cc=mingo@kernel.org \
    --cc=npiggin@gmail.com \
    --cc=parri.andrea@gmail.com \
    --cc=paulmck@kernel.org \
    --cc=peterz@infradead.org \
    --cc=will@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).