From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752968Ab1GWQWR (ORCPT ); Sat, 23 Jul 2011 12:22:17 -0400 Received: from liberdade2.minaslivre.org ([74.50.53.203]:51871 "EHLO liberdade.minaslivre.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752538Ab1GWQWN (ORCPT ); Sat, 23 Jul 2011 12:22:13 -0400 From: Thadeu Lima de Souza Cascardo To: jdike@addtoit.com Cc: user-mode-linux-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Thadeu Lima de Souza Cascardo , Christoph Lameter , Richard Weinberger Subject: [PATCH] um: disable CMPXCHG_DOUBLE as it breaks UML build Date: Sat, 23 Jul 2011 13:21:51 -0300 Message-Id: <1311438111-10961-1-git-send-email-cascardo@holoscopio.com> X-Mailer: git-send-email 1.7.5.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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 -- 1.7.5.4