From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754047Ab1H2QEZ (ORCPT ); Mon, 29 Aug 2011 12:04:25 -0400 Received: from a.ns.miles-group.at ([95.130.255.143]:34792 "EHLO radon.swed.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753839Ab1H2QET (ORCPT ); Mon, 29 Aug 2011 12:04:19 -0400 From: Richard Weinberger To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net, Thadeu Lima de Souza Cascardo , Christoph Lameter , Jeff Dike , Richard Weinberger Subject: [PATCH 1/9] um: disable CMPXCHG_DOUBLE as it breaks UML build Date: Mon, 29 Aug 2011 18:03:54 +0200 Message-Id: <1314633842-24515-2-git-send-email-richard@nod.at> X-Mailer: git-send-email 1.7.6.1 In-Reply-To: <1314633842-24515-1-git-send-email-richard@nod.at> References: <1314633842-24515-1-git-send-email-richard@nod.at> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Thadeu Lima de Souza Cascardo Commit b789ef518b2a7231b0668c813f677cee528a9d3f tests for cmpxchg_double support in the SLUB code and it breaks UML builds with SLUB. Since UML does not support checking for CPU features, disable CMPXCHG_DOUBLE just like CMPXCHG_LOCAL is disabled for UML. Signed-off-by: Thadeu Lima de Souza Cascardo Cc: Christoph Lameter Cc: Jeff Dike Cc: Richard Weinberger Signed-off-by: Richard Weinberger --- arch/um/Kconfig.x86 | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/um/Kconfig.x86 b/arch/um/Kconfig.x86 index d31ecf3..21bebe6 100644 --- a/arch/um/Kconfig.x86 +++ b/arch/um/Kconfig.x86 @@ -10,6 +10,10 @@ config CMPXCHG_LOCAL bool default n +config CMPXCHG_DOUBLE + bool + default n + source "arch/x86/Kconfig.cpu" endmenu -- 1.7.6.1