linux-kernel - Re: [PATCH] tools/memory-model: Add atomic_and()/or()/xor() and add

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Date: Wed, 8 May 2024 10:34:14 -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_and()/or()/xor() and
 add_negative

On Wed, May 08, 2024 at 05:28:22PM +0200, Andrea Parri wrote:
> On Wed, May 08, 2024 at 02:34:00PM +0000, Puranjay Mohan wrote:
> > Pull-849[1] added the support of '&', '|', and '^' to the herd7 tool's
> > atomics operations.
> > 
> > Use these in linux-kernel.def to implement atomic_and()/or()/xor() with
> > all their ordering variants.
> > 
> > atomic_add_negative() is already available so add its acquire, release,
> > and relaxed ordering variants.
> > 
> > [1] https://github.com/herd/herdtools7/pull/849
> > 
> > Signed-off-by: Puranjay Mohan <puranjay@...nel.org>
> 
> Acked-by: Andrea Parri <parri.andrea@...il.com>

Queued for review and testing, and thank you both!

							Thanx, Paul