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Date:   Fri, 14 Feb 2020 10:27:44 -0500 (EST)
From:   Alan Stern <stern@rowland.harvard.edu>
To:     Boqun Feng <boqun.feng@gmail.com>
cc:     linux-kernel@vger.kernel.org,
        Andrea Parri <parri.andrea@gmail.com>,
        Will Deacon <will@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Nicholas Piggin <npiggin@gmail.com>,
        David Howells <dhowells@redhat.com>,
        Jade Alglave <j.alglave@ucl.ac.uk>,
        Luc Maranget <luc.maranget@inria.fr>,
        "Paul E. McKenney" <paulmck@kernel.org>,
        Akira Yokosawa <akiyks@gmail.com>,
        Daniel Lustig <dlustig@nvidia.com>,
        Jonathan Corbet <corbet@lwn.net>, <linux-arch@vger.kernel.org>,
        <linux-doc@vger.kernel.org>
Subject: Re: [RFC 0/3] tools/memory-model: Add litmus tests for atomic APIs
In-Reply-To: <20200214040132.91934-1-boqun.feng@gmail.com>
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On Fri, 14 Feb 2020, Boqun Feng wrote:

> A recent discussion raises up the requirement for having test cases for
> atomic APIs:
> 
> 	https://lore.kernel.org/lkml/20200213085849.GL14897@hirez.programming.kicks-ass.net/
> 
> , and since we already have a way to generate a test module from a
> litmus test with klitmus[1]. It makes sense that we add more litmus
> tests for atomic APIs into memory-model.

It might be worth discussing this point a little more fully.  The 
set of tests in tools/memory-model/litmus-tests/ is deliberately rather 
limited.  Paul has a vastly more expansive set of litmus tests in a 
GitHub repository, and I am doubtful about how many new tests we want 
to keep in the kernel source.

Perhaps it makes sense to have tests corresponding to all the examples
in Documentation/, perhaps not.  How do people feel about this?

Alan