linux-kernel - Re: [RFC 2/3] tools/memory-model: Add a litmus test for atomic

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Message-ID: <20200217110200.GO14914@hirez.programming.kicks-ass.net>
Date:   Mon, 17 Feb 2020 12:02:00 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Boqun Feng <boqun.feng@...il.com>
Cc:     Alan Stern <stern@...land.harvard.edu>,
        linux-kernel@...r.kernel.org,
        Andrea Parri <parri.andrea@...il.com>,
        Will Deacon <will@...nel.org>,
        Nicholas Piggin <npiggin@...il.com>,
        David Howells <dhowells@...hat.com>,
        Jade Alglave <j.alglave@....ac.uk>,
        Luc Maranget <luc.maranget@...ia.fr>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Akira Yokosawa <akiyks@...il.com>,
        Daniel Lustig <dlustig@...dia.com>,
        Jonathan Corbet <corbet@....net>, linux-arch@...r.kernel.org,
        linux-doc@...r.kernel.org
Subject: Re: [RFC 2/3] tools/memory-model: Add a litmus test for atomic_set()

On Sat, Feb 15, 2020 at 07:52:15AM +0800, Boqun Feng wrote:
> I agree, and thanks for the suggestion! And I change the sentence in
> atomic_t.txt with:
> 
> 	A note for the implementation of atomic_set{}() is that it
> 	cannot break the atomicity of the RMW ops.
> 
> , since I think that part of the doc is more about the suggestion to
> anyone who want to implement the atomic_set(). Peter, is that OK to you?

Sure.