From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932156Ab3KLPCH (ORCPT ); Tue, 12 Nov 2013 10:02:07 -0500 Received: from mga09.intel.com ([134.134.136.24]:16573 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753375Ab3KLPCF (ORCPT ); Tue, 12 Nov 2013 10:02:05 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,535,1378882800"; d="scan'208";a="433939025" Date: Tue, 12 Nov 2013 07:02:00 -0800 From: Andi Kleen To: Stephane Eranian Cc: Peter Zijlstra , LKML , "mingo@elte.hu" , Arnaldo Carvalho de Melo , Jiri Olsa , "Yan, Zheng" , Borislav Petkov , Maria Dimakopoulou Subject: Re: [PATCH v6 3/4] perf,x86: add Intel RAPL PMU support Message-ID: <20131112150200.GB3499@tassilo.jf.intel.com> References: <1383939963-7750-1-git-send-email-eranian@google.com> <1383939963-7750-4-git-send-email-eranian@google.com> <20131111155905.GM19203@twins.programming.kicks-ass.net> <20131111161631.GA21461@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > I don't know where Andi got that cpu starting was parallel now. > Andi? I know there was some work on it, but maybe it hasn't been merged yet. > > If hotplug is not parallel, then we can drop that RAPL hotplug_lock > I added. I guess your patch is ok without lock for now, sorry for the objection. -Andi