Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932816AbcDELzz (ORCPT ); Tue, 5 Apr 2016 07:55:55 -0400 Received: from e06smtp07.uk.ibm.com ([195.75.94.103]:54889 "EHLO e06smtp07.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753269AbcDELzw (ORCPT ); Tue, 5 Apr 2016 07:55:52 -0400 X-IBM-Helo: d06dlp03.portsmouth.uk.ibm.com X-IBM-MailFrom: heiko.carstens@de.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org;linux-s390@vger.kernel.org Date: Tue, 5 Apr 2016 13:55:43 +0200 From: Heiko Carstens To: rcochran@linutronix.de 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: <20160405115543.GE6890@osiris> References: <1459765640-13599-1-git-send-email-anna-maria@linutronix.de> <20160405104912.GC3937@osiris> <57039DC2.6090907@linutronix.de> <20160405112336.GB6890@osiris> <20160405113637.GC6890@osiris> <20160405115129.GE30124@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160405115129.GE30124@linutronix.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16040511-0029-0000-0000-00000CE342D1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1027 Lines: 24 On Tue, Apr 05, 2016 at 01:51:29PM +0200, rcochran@linutronix.de wrote: > 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 No. It's included. I'm using latest Linus' master tree with git head being 1e1e5ce78ff0 "Merge tag 'linux-kselftest-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest" # uname -a Linux p2345007 4.6.0-rc2-00042-g1e1e5ce78ff0-dirty #3 SMP PREEMPT Tue Apr 5 13:30:02 CEST 2016 s390x s390x s390x GNU/Linux