From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030198AbaIZUUN (ORCPT ); Fri, 26 Sep 2014 16:20:13 -0400 Received: from mail.kernel.org ([198.145.19.201]:52692 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755044AbaIZUUK (ORCPT ); Fri, 26 Sep 2014 16:20:10 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Pranith Kumar , Adrian Hunter , David Ahern , Ingo Molnar , Jiri Olsa , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 04/10] perf tools: Use ACCESS_ONCE() instead of volatile cast Date: Fri, 26 Sep 2014 17:19:41 -0300 Message-Id: <1411762787-26113-5-git-send-email-acme@kernel.org> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1411762787-26113-1-git-send-email-acme@kernel.org> References: <1411762787-26113-1-git-send-email-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Pranith Kumar Use ACCESS_ONCE() instead of the cast to volatile and read. This is just a style change which is reader friendly. Signed-off-by: Pranith Kumar Acked-by: Namhyung Kim Cc: Adrian Hunter Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1411484109-10442-1-git-send-email-bobby.prani@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index 8dd41cad2d59..ffb440462008 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -126,5 +126,5 @@ int __perf_session__set_tracepoints_handlers(struct perf_session *session, extern volatile int session_done; -#define session_done() (*(volatile int *)(&session_done)) +#define session_done() ACCESS_ONCE(session_done) #endif /* __PERF_SESSION_H */ -- 1.9.3