]> git.ipfire.org Git - thirdparty/linux.git/commitdiff
docs/memory-barriers.txt/kokr: introduce io_stop_wc() and add implementation for...
authorSeongJae Park <sj@kernel.org>
Tue, 11 Oct 2022 02:58:07 +0000 (19:58 -0700)
committerPaul E. McKenney <paulmck@kernel.org>
Tue, 18 Oct 2022 22:14:52 +0000 (15:14 -0700)
Translate this commit to Korean:

    d5624bb29f49 ("asm-generic: introduce io_stop_wc() and add implementation for ARM64")

Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Yunjae Lee <lyj7694@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Documentation/translations/ko_KR/memory-barriers.txt

index 75aa5531cc7d007ec8f0422634ae704366ff8231..96b4162989a0d3d56de5aa3d72fdfa896c399b8c 100644 (file)
@@ -1918,6 +1918,14 @@ Mandatory 배리어들은 SMP 시스템에서도 UP 시스템에서도 SMP 효
      Persistent memory 에서의 로드를 위해선 현재의 읽기 메모리 배리어로도 읽기
      순서를 보장하는데 충분합니다.
 
+  (*) io_stop_wc();
+
+     쓰기와 결합된 특성을 갖는 메모리 액세스의 경우 (예: ioremap_wc() 에 의해
+     리턴되는 것들), CPU 는 앞의 액세스들이 뒤따르는 것들과 병합되게끔 기다릴
+     수 있습니다.  io_stop_wc() 는 그런 기다림이 성능에 영향을 끼칠 수 있을 때,
+     이 매크로 앞의 쓰기-결합된 메모리 액세스들이 매크로 뒤의 것들과 병합되는
+     것을 방지하기 위해 사용될 수 있습니다.
+
 =========================
 암묵적 커널 메모리 배리어
 =========================