From: Kunwu Chan <kunwu.chan@linux.dev>
To: perfbook@vger.kernel.org
Cc: paulmck@kernel.org, Kunwu Chan <kunwu.chan@linux.dev>
Subject: [PATCH] memorder: Reconcile W+RWC propagation path with litmus dataflow
Date: Wed, 11 Mar 2026 15:58:06 +0800 [thread overview]
Message-ID: <20260311075806.950363-1-kunwu.chan@linux.dev> (raw)
Align the Section 15.3.7.2 propagation narrative with Listing 15.18 by correcting the path to P2->z->P1. This removes a variable-path contradiction in the counter-temporal explanation and restores argument traceability.
Signed-off-by: Kunwu Chan <kunwu.chan@linux.dev>
---
memorder/memorder.tex | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/memorder/memorder.tex b/memorder/memorder.tex
index 16a569d1..2357e7ea 100644
--- a/memorder/memorder.tex
+++ b/memorder/memorder.tex
@@ -2755,8 +2755,8 @@ This situation might seem completely counter-intuitive, but keep
in mind that the speed of light is finite and computers are of
non-zero size.
It therefore takes time for the effect of the \co{P2()}'s store to
-\co{x} to propagate to \co{P1()}, which in turn means that it is possible
-that \co{P1()}'s read from \co{x} happens much later in time, but
+\co{z} to propagate to \co{P1()}, which in turn means that it is possible
+that \co{P1()}'s read from \co{z} happens much later in time, but
nevertheless still sees the old value of zero.
This situation is depicted in
\cref{fig:memorder:Load-to-Store is Counter-Temporal}:
--
2.25.1
reply other threads:[~2026-03-11 7:58 UTC|newest]
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