>From a9c276c3da87ed327d003a70d60777f41999b4fc Mon Sep 17 00:00:00 2001
From: Akira Yokosawa <akiyks@xxxxxxxxx>
Date: Wed, 3 Oct 2018 00:08:49 +0900
Subject: [PATCH 2/2] count: Adjust type of variable 'counter' with code snippet
In the actual code of count_stat.c, the per-thread variable
"counter" has the type "unsigned long".
Signed-off-by: Akira Yokosawa <akiyks@xxxxxxxxx>
---
count/count.tex | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/count/count.tex b/count/count.tex
index 4f760a4..9f9fd0f 100644
--- a/count/count.tex
+++ b/count/count.tex
@@ -487,7 +487,7 @@ Listing~\ref{lst:count:Array-Based Per-Thread Statistical Counters}
(\path{count_stat.c}).
\begin{lineref}[ln:count:count_stat:inc-read]
Line~\lnref{define} defines an array containing a set of per-thread counters of
-type \co{long} named, creatively enough, \co{counter}.
+type \co{unsigned long} named, creatively enough, \co{counter}.
Lines~\lnref{inc:b}-\lnref{inc:e}
show a function that increments the counters, using the
@@ -501,7 +501,7 @@ show a function that reads out the aggregate value of the counter,
using the \co{for_each_thread()} primitive to iterate over the list of
currently running threads, and using the \co{per_thread()} primitive
to fetch the specified thread's counter.
-Because the hardware can fetch and store a properly aligned \co{long}
+Because the hardware can fetch and store a properly aligned \co{unsigned long}
atomically, and because \GCC\ is kind enough to make use of this capability,
normal loads suffice, and no special atomic instructions are required.
\end{lineref}
--
2.7.4
