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[79.51.73.205]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a6f99a09fe8sm53893566b.9.2024.06.18.02.54.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Jun 2024 02:54:07 -0700 (PDT) Date: Tue, 18 Jun 2024 11:54:04 +0200 From: Andrea Parri To: Hernan Ponce de Leon Cc: Boqun Feng , stern@rowland.harvard.edu, will@kernel.org, peterz@infradead.org, npiggin@gmail.com, dhowells@redhat.com, j.alglave@ucl.ac.uk, luc.maranget@inria.fr, paulmck@kernel.org, akiyks@gmail.com, dlustig@nvidia.com, joel@joelfernandes.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, jonas.oberhauser@huaweicloud.com Subject: Re: [PATCH v3] tools/memory-model: Document herd7 (abstract) representation Message-ID: References: <20240617201759.1670994-1-parri.andrea@gmail.com> <07513d65-386d-1bfb-f5ad-8979708d5523@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <07513d65-386d-1bfb-f5ad-8979708d5523@huaweicloud.com> > This follows from rmw \subset po. However, this might not be immediately > clear for the reader so having it explicit is a good idea. Sure. How about as follows: diff --git a/tools/memory-model/Documentation/herd-representation.txt b/tools/memory-model/Documentation/herd-representation.txt index 2fe270e902635..8255a2ff62e5f 100644 --- a/tools/memory-model/Documentation/herd-representation.txt +++ b/tools/memory-model/Documentation/herd-representation.txt @@ -14,7 +14,7 @@ # SRCU, a Sleepable-Read-Copy-Update event # # po, a Program-Order link -# rmw, a Read-Modify-Write link +# rmw, a Read-Modify-Write link; every rmw link is a po link # # By convention, a blank entry/representation means "same as the preceding entry". # I can respin the patch shortly to add something along these lines and the collected tags. Andrea