From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E251CC43387 for ; Wed, 9 Jan 2019 23:19:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AEAB72075C for ; Wed, 9 Jan 2019 23:19:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="abLOYt4m" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726744AbfAIXTD (ORCPT ); Wed, 9 Jan 2019 18:19:03 -0500 Received: from mail-ed1-f67.google.com ([209.85.208.67]:34340 "EHLO mail-ed1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726525AbfAIXTC (ORCPT ); Wed, 9 Jan 2019 18:19:02 -0500 Received: by mail-ed1-f67.google.com with SMTP id b3so8758301ede.1 for ; Wed, 09 Jan 2019 15:19:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=08MFwLPmKfpU/cYgkbRH3qQMn7M2zBV4aixFJ7ms3Jo=; b=abLOYt4mb+JuDGevOHPDyqp9iQHFmNdkmZWNbov5wtVqg5VAX/ZUU6IRuCMhnG5PeO sZzPB8OtISQNX85K0clLhRt3Q9uWkQmfcdB8sbsRoIkV5mGbazPCK+jUiG/+mTBdqzGa XFMkwyc+e3rET+OOrBe1Ppg+SIOM3AdFueX+4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=08MFwLPmKfpU/cYgkbRH3qQMn7M2zBV4aixFJ7ms3Jo=; b=XdTZ7YbXb9Jejj3SfGt2bz9g581vE1Qpp8sSd8cTNcy+ErByc3dhOSf7mkII64IQjS fkQ2o7a4b+1TOyCtPHzr/PBxNcJX6udWgGScTXkHR2qocf8kLEGdIo1LskSawKYoPT7V NHkPh3N7LTZgQAHvBgpw9juYn3BPQTUN3ta4sfBZaxNdzkDZFdWoob/ETPeM/G+Y2luR kQSScW13ltqYCssKvpWm4YiH0VGDfPkJad3Qvd+KNpAx1dEzovWer8/Fh2by48T2iDH/ jXYLwx+NnokkXqpBFuRY6oj2uROJWQYP9ctyKwKlrLd0dnJSDTGHapKnUE0vo7NknnhH fYCg== X-Gm-Message-State: AJcUukf6BlSLdpGlq6TYeXBMqCkFitZ+P4lt1jNouVklzYrXlXZxNOG6 +USuYugR491LWSbl/FHUO1uz5Q== X-Google-Smtp-Source: ALg8bN70WUD6tS0t6UbBvr+W4cAfPIwRRG3Yv6sQ29NafE/e7MJxnULFgJYGjIbK/BrlbqlWpGjMuw== X-Received: by 2002:a50:9849:: with SMTP id h9mr7272434edb.36.1547075940246; Wed, 09 Jan 2019 15:19:00 -0800 (PST) Received: from andrea ([89.22.71.151]) by smtp.gmail.com with ESMTPSA id cd6-v6sm996559ejb.14.2019.01.09.15.18.58 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 09 Jan 2019 15:18:59 -0800 (PST) Date: Thu, 10 Jan 2019 00:18:53 +0100 From: Andrea Parri To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, mingo@kernel.org, stern@rowland.harvard.edu, parri.andrea@gmail.com, will.deacon@arm.com, 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, willy@infradead.org Subject: Re: [PATCH RFC memory-model 0/6] LKMM updates Message-ID: <20190109231852.GA4494@andrea> References: <20190109210706.GA27268@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190109210706.GA27268@linux.ibm.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 09, 2019 at 01:07:06PM -0800, Paul E. McKenney wrote: > Hello! > > This series contains updates for the Linux-kernel memory model: > > 1-3. Add SRCU support, courtesy of Alan Stern. > > 4. Update README for adding of SRCU support. > > 5. Update memory-barriers.txt on enforcing heavy ordering for > port-I/O accesses, courtesy of Will Deacon. This one needs > an ack, preferably by someone from Intel. Matthew Wilcox > posted some feedback from an Intel manual here, which might > be considered to be a close substitute, but... ;-) > > http://lkml.kernel.org/r/20181127192234.GF10377@bombadil.infradead.org > > 6. Update Documentation/explanation.txt to include SRCU support, > courtesy of Alan Stern. > > 7. Dynamically check SRCU lock-to-unlock matching, courtesy of > Luc Maranget. This needs an ack. It seems that 1b52d0186177 ("tools/memory-model: Model smp_mb__after_unlock_lock()") from linux-rcu/dev got lost; this also needs an ack (probably yours! ;D, considered that, IIRC, you introduced the primitive and RCU is currently its only user.) Andrea > > Thanx, Paul > > ------------------------------------------------------------------------ > > Documentation/memory-barriers.txt | 6 > tools/memory-model/Documentation/explanation.txt | 289 ++++++++++++----------- > tools/memory-model/README | 25 + > tools/memory-model/linux-kernel.bell | 37 ++ > tools/memory-model/linux-kernel.cat | 55 ++-- > tools/memory-model/linux-kernel.def | 7 > 6 files changed, 250 insertions(+), 169 deletions(-) >