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Message-ID: <aeba034f-142b-4d8f-9ea8-475f4dbaaf1c@paulmck-laptop>
Date: Tue, 14 May 2024 12:02:40 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: Andrea Parri <parri.andrea@...il.com>
Cc: Puranjay Mohan <puranjay@...nel.org>,
Alan Stern <stern@...land.harvard.edu>,
Will Deacon <will@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Boqun Feng <boqun.feng@...il.com>,
Nicholas Piggin <npiggin@...il.com>,
David Howells <dhowells@...hat.com>,
Jade Alglave <j.alglave@....ac.uk>,
Luc Maranget <luc.maranget@...ia.fr>,
Akira Yokosawa <akiyks@...il.com>,
Daniel Lustig <dlustig@...dia.com>,
Joel Fernandes <joel@...lfernandes.org>,
linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
puranjay12@...il.com
Subject: Re: [PATCH] tools/memory-model: Add atomic_andnot() with its variants
On Tue, May 14, 2024 at 01:11:22PM +0200, Andrea Parri wrote:
> > C andnot
> >
> > {
> > atomic_t u = ATOMIC_INIT(7);
> > }
> >
> > P0(atomic_t *u)
> > {
> >
> > r0 = atomic_fetch_andnot(3, u);
> > r1 = READ_ONCE(*u);
> > }
> >
> > exists (0:r0=7 /\ 0:r1=4)
>
> Fair enough for the changelog. If/when submitting proper tests, please
> check their format using klitmus7 (besides herd7); say,
>
> $ mkdir mymodule
> $ klitmus7 -o mymodule <.litmus file>
> $ cd mymodule ; make
> $ sudo sh run.sh
>
> Documentation/litmus-tests/ provides some examples litmus tests.
>
>
> > Signed-off-by: Puranjay Mohan <puranjay@...nel.org>
>
> Acked-by: Andrea Parri <parri.andrea@...il.com>
Queued and pushed, thank you both!
Again, I will hold off pushing this until herd7 releases a version
supporting this.
Thanx, Paul
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