Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757894AbcDELvc (ORCPT ); Tue, 5 Apr 2016 07:51:32 -0400 Received: from www.linutronix.de ([62.245.132.108]:37724 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752333AbcDELvb (ORCPT ); Tue, 5 Apr 2016 07:51:31 -0400 Date: Tue, 5 Apr 2016 13:51:29 +0200 From: rcochran@linutronix.de To: Heiko Carstens Cc: Sebastian Andrzej Siewior , Anna-Maria Gleixner , Martin Schwidefsky , linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, rt@linutronix.de Subject: Re: [PREEMPT-RT] [PATCH] s390/cpum_sf: Remove superfluous SMP function call Message-ID: <20160405115129.GE30124@linutronix.de> References: <1459765640-13599-1-git-send-email-anna-maria@linutronix.de> <20160405104912.GC3937@osiris> <57039DC2.6090907@linutronix.de> <20160405112336.GB6890@osiris> <20160405113637.GC6890@osiris> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160405113637.GC6890@osiris> 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 Content-Length: 608 Lines: 20 On Tue, Apr 05, 2016 at 01:36:38PM +0200, Heiko Carstens wrote: > On Tue, Apr 05, 2016 at 01:23:36PM +0200, Heiko Carstens wrote: > > Subsequently, in this case, the setup_pmc_cpu() call will be executed on > > the wrong cpu. > > .. or to illustrate this behaviour: the following patch (white space > damaged due to copy-paste) results in the following: I guess you are missing the following commit? commit 1cf4f629d9d246519a1e76c021806f2a51ddba4d Author: Thomas Gleixner Date: Fri Feb 26 18:43:39 2016 +0000 cpu/hotplug: Move online calls to hotplugged cpu Thanks, Richard