From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751966AbaFEX3v (ORCPT ); Thu, 5 Jun 2014 19:29:51 -0400 Received: from mga11.intel.com ([192.55.52.93]:35152 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751384AbaFEX3u (ORCPT ); Thu, 5 Jun 2014 19:29:50 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.98,984,1392192000"; d="scan'208";a="550493434" Date: Thu, 5 Jun 2014 16:29:49 -0700 From: Andi Kleen To: Maria Dimakopoulou Cc: Borislav Petkov , Stephane Eranian , Matt Fleming , LKML , Peter Zijlstra , "mingo@elte.hu" , Jiri Olsa , "Yan, Zheng" Subject: Re: [PATCH 9/9] perf/x86: add syfs entry to disable HT bug workaround Message-ID: <20140605232949.GF16855@tassilo.jf.intel.com> References: <20140605132750.GA16811@pd.tnic> <20140605140316.GB16811@pd.tnic> <20140605151734.GD16811@pd.tnic> <20140605165213.GI16642@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > As Stephane pointed out, the sysfs entry is optional and the workaround > can be disabled only as root. > > It is not absolutely necessary and it's not important. > We will drop it in V2. I would prefer to keep it. It's fairly complex and it's always good to have a way to disable complex things in case something goes wrong. -Andi