From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754551Ab1H2Rfu (ORCPT ); Mon, 29 Aug 2011 13:35:50 -0400 Received: from smtp101.prem.mail.ac4.yahoo.com ([76.13.13.40]:40149 "HELO smtp101.prem.mail.ac4.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754529Ab1H2Rfq (ORCPT ); Mon, 29 Aug 2011 13:35:46 -0400 X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: 0CF.04UVM1n1teMZuzZ.BDyCFLE43ErGt5sm_Jey.dWNC6U YxgUlj9wJCqe5ZcWDoc4pU3Pj_ubcetjaHlKIYqTO7L69VgJuATItBRgq.Go A08zk_IE8X77ACKc_uJW1fgMlr_aXFQOX0xPOEtgDQyFZDko8GwnJCCFgd.R cWdiEKMF.KtzUH2o9mYAQhnlXsg6Z8a1rZoS0QddrTk8ymB07q0W42sF9gkF lmALm3kLVH.M7GqNS_0JyeX2H9lk35fTmy29ARtAVphepkOQGkzBC7THHGsW dW0n8tLL_oyrcZTxb_723mv9DaiDNIgxKPaREMQM0mjKw4g70naVpHfpbrYV GYkOgHK3CMMUUmfyepMvqG4bRWCnX3XPFTog2ixgq7FlvDvbk8Dhc98VIbpk QbExSWngQ_fq4spopqiVd6Q-- X-Yahoo-SMTP: _Dag8S.swBC1p4FJKLCXbs8NQzyse1SYSgnAbY0- Date: Mon, 29 Aug 2011 12:35:41 -0500 (CDT) From: Christoph Lameter X-X-Sender: cl@router.home To: Richard Weinberger cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net, Thadeu Lima de Souza Cascardo , Jeff Dike Subject: Re: [PATCH 1/9] um: disable CMPXCHG_DOUBLE as it breaks UML build In-Reply-To: <1314634419-24766-2-git-send-email-richard@nod.at> Message-ID: References: <1314634419-24766-1-git-send-email-richard@nod.at> <1314634419-24766-2-git-send-email-richard@nod.at> User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 29 Aug 2011, Richard Weinberger wrote: > 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. Reviewed-by: Christoph Lameter