From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752475AbcHQOWI (ORCPT ); Wed, 17 Aug 2016 10:22:08 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:59830 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751839AbcHQOWH (ORCPT ); Wed, 17 Aug 2016 10:22:07 -0400 X-IBM-Helo: d03dlp02.boulder.ibm.com X-IBM-MailFrom: paulmck@linux.vnet.ibm.com Date: Wed, 17 Aug 2016 07:22:11 -0700 From: "Paul E. McKenney" To: Sebastian Andrzej Siewior Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] cpu/hotplug: get rid of CPU_STARTING reference Reply-To: paulmck@linux.vnet.ibm.com References: <20160817122103.5exomri3lxlcuydr@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160817122103.5exomri3lxlcuydr@linutronix.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16081714-8235-0000-0000-0000090178EC X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00005607; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000181; SDB=6.00745941; UDB=6.00351620; IPR=6.00518487; BA=6.00004664; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00012365; XFM=3.00000011; UTC=2016-08-17 14:22:04 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16081714-8236-0000-0000-000034091B34 Message-Id: <20160817142211.GB3482@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-08-17_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1608170159 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 17, 2016 at 02:21:04PM +0200, Sebastian Andrzej Siewior wrote: > CPU_STARTING is scheduled for removal. There is no use of it in drivers > and just compatibility use core code. This patch removes it from an RCU > related comment. > > Signed-off-by: Sebastian Andrzej Siewior Queued, thank you! Thanx, Paul > --- > > Paul, this "CPU_STARTING" refrences got in via "rcu: Exact CPU-online > tracking for RCU". > > kernel/cpu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/kernel/cpu.c b/kernel/cpu.c > index 35b53a1f56a7..3788ad9d4073 100644 > --- a/kernel/cpu.c > +++ b/kernel/cpu.c > @@ -897,7 +897,7 @@ void notify_cpu_starting(unsigned int cpu) > struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu); > enum cpuhp_state target = min((int)st->target, CPUHP_AP_ONLINE); > > - rcu_cpu_starting(cpu); /* All CPU_STARTING notifiers can use RCU. */ > + rcu_cpu_starting(cpu); /* Enables RCU usage on this CPU. */ > while (st->state < target) { > struct cpuhp_step *step; > > -- > 2.9.3 >