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authorAkira Yokosawa <akiyks@gmail.com>2021-01-03 20:08:35 -0800
committerPaul E. McKenney <paulmck@kernel.org>2021-01-03 20:10:31 -0800
commit5abdbfb64558c7036a58a8e624120088ce3d2b1f (patch)
tree6e47e3b9c830b7df8ef92271bf901157af9f17e8
parent3cccf2e94038caa0c469d983f37e4bcec9ab7959 (diff)
downloadperfbook-paulmck.2020.01.03a.tar.gz
memorder: Remove redundant footnotepaulmck.2020.01.03a
Now that it becomes contextually obvious that this paragraph is talking on the pre-v4.15 READ_ONCE() of Alpha, the footnote can be removed. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
-rw-r--r--memorder/memorder.tex5
1 files changed, 1 insertions, 4 deletions
diff --git a/memorder/memorder.tex b/memorder/memorder.tex
index 9aecf803..a07d1d06 100644
--- a/memorder/memorder.tex
+++ b/memorder/memorder.tex
@@ -3940,10 +3940,7 @@ This \co{smp_wmb()} on \clnref{wmb} of this listing
guarantees that the element initialization
in \clnrefrange{init:b}{init:e} is executed before the element is added to the
list on \clnref{add}, so that the lock-free search will work correctly.
-That is, it makes this guarantee on all CPUs {\em except} Alpha.\footnote{
- But Linux kernel versions v4.15 and later cause \co{READ_ONCE()}
- to emit a memory barrier on Alpha, so this discussion applies
- only to older versions of the Linux kernel.}
+That is, it makes this guarantee on all CPUs {\em except} Alpha.
\end{fcvref}
\begin{listing}[tbp]