From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751242AbbCSWeF (ORCPT ); Thu, 19 Mar 2015 18:34:05 -0400 Received: from cdptpa-outbound-snat.email.rr.com ([107.14.166.231]:9005 "EHLO cdptpa-oedge-vip.email.rr.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750830AbbCSWeD (ORCPT ); Thu, 19 Mar 2015 18:34:03 -0400 Date: Thu, 19 Mar 2015 18:34:44 -0400 From: Steven Rostedt To: Linus Torvalds Cc: LKML , Ingo Molnar , Andrew Morton , stable , Christoph Lameter , Uwe Kleine-Koenig Subject: Re: [GIT PULL] ring-buffer: Replace this_cpu_*() with __this_cpu_*() Message-ID: <20150319183444.3d26f078@grimm.local.home> In-Reply-To: References: <20150319180216.62c9fa4a@gandalf.local.home> X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.25; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-RR-Connecting-IP: 107.14.168.118:25 X-Cloudmark-Score: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 19 Mar 2015 15:16:25 -0700 Linus Torvalds wrote: > So I don't think the ring-buffer change is necessarily _wrong_, but if > this is a performance issue, why don't we just fix it up for the > generic case rather than for just one user? I totally agree with your analysis, but it's up to Christoph to come up with an answer to your questions. -- Steve