From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754431AbcB2LXf (ORCPT ); Mon, 29 Feb 2016 06:23:35 -0500 Received: from torg.zytor.com ([198.137.202.12]:54854 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753932AbcB2LXc (ORCPT ); Mon, 29 Feb 2016 06:23:32 -0500 Date: Mon, 29 Feb 2016 03:22:59 -0800 From: tip-bot for Alfredo Alvarez Fernandez Message-ID: Cc: alfredoalvarezfernandez@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de, peterz@infradead.org, akpm@linux-foundation.org, torvalds@linux-foundation.org, hpa@zytor.com, paulmck@linux.vnet.ibm.com, sasha.levin@oracle.com Reply-To: sasha.levin@oracle.com, paulmck@linux.vnet.ibm.com, hpa@zytor.com, peterz@infradead.org, akpm@linux-foundation.org, torvalds@linux-foundation.org, tglx@linutronix.de, mingo@kernel.org, alfredoalvarezfernandez@gmail.com, linux-kernel@vger.kernel.org In-Reply-To: <1455864533-7536-2-git-send-email-alfredoalvarezernandez@gmail.com> References: <1455864533-7536-2-git-send-email-alfredoalvarezernandez@gmail.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:locking/core] tools/lib/lockdep: Add userspace version of READ_ONCE() Git-Commit-ID: 9d5a23ac8e0ede14a2b23740d231727ba5be483a X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 9d5a23ac8e0ede14a2b23740d231727ba5be483a Gitweb: http://git.kernel.org/tip/9d5a23ac8e0ede14a2b23740d231727ba5be483a Author: Alfredo Alvarez Fernandez AuthorDate: Fri, 19 Feb 2016 07:48:51 +0100 Committer: Ingo Molnar CommitDate: Mon, 29 Feb 2016 10:29:27 +0100 tools/lib/lockdep: Add userspace version of READ_ONCE() This was added to the kernel code in <1658d35ead5d> ("list: Use READ_ONCE() when testing for empty lists"). There's nothing special we need to do about it in userspace. Signed-off-by: Alfredo Alvarez Fernandez Cc: Andrew Morton Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Sasha Levin Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1455864533-7536-2-git-send-email-alfredoalvarezernandez@gmail.com Signed-off-by: Ingo Molnar --- tools/lib/lockdep/uinclude/linux/compiler.h | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/lib/lockdep/uinclude/linux/compiler.h b/tools/lib/lockdep/uinclude/linux/compiler.h index 6386dc3..fd3e56a 100644 --- a/tools/lib/lockdep/uinclude/linux/compiler.h +++ b/tools/lib/lockdep/uinclude/linux/compiler.h @@ -3,6 +3,7 @@ #define __used __attribute__((__unused__)) #define unlikely +#define READ_ONCE(x) (x) #define WRITE_ONCE(x, val) x=(val) #define RCU_INIT_POINTER(p, v) p=(v)