Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753734Ab3HFDOL (ORCPT ); Mon, 5 Aug 2013 23:14:11 -0400 Received: from g1t0027.austin.hp.com ([15.216.28.34]:45861 "EHLO g1t0027.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753801Ab3HFDNH (ORCPT ); Mon, 5 Aug 2013 23:13:07 -0400 From: Waiman Long Cc: Waiman Long , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Peter Zijlstra , Steven Rostedt , Linus Torvalds , Benjamin Herrenschmidt , Andi Kleen , "Chandramouleeswaran, Aswin" , "Norton, Scott J" Subject: [PATCH v7 2/4] spinlock: Enable x86 architecture to do lockless refcount update Date: Mon, 5 Aug 2013 23:12:37 -0400 Message-Id: <1375758759-29629-3-git-send-email-Waiman.Long@hp.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1375758759-29629-1-git-send-email-Waiman.Long@hp.com> References: <1375758759-29629-1-git-send-email-Waiman.Long@hp.com> To: Alexander Viro , Jeff Layton , Miklos Szeredi , Ingo Molnar , Thomas Gleixner Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 907 Lines: 31 This patch enables the x86 architecture to do lockless reference count update using the generic lockref implementation with default parameters. Only the x86/Kconfig file needs to be changed. Signed-off-by: Waiman Long --- arch/x86/Kconfig | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index b32ebf9..79a9309 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -262,6 +262,9 @@ config ARCH_CPU_PROBE_RELEASE config ARCH_SUPPORTS_UPROBES def_bool y +config GENERIC_SPINLOCK_REFCOUNT + def_bool y + source "init/Kconfig" source "kernel/Kconfig.freezer" -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/