From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754590AbaGPXcg (ORCPT ); Wed, 16 Jul 2014 19:32:36 -0400 Received: from relay4-d.mail.gandi.net ([217.70.183.196]:46984 "EHLO relay4-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753720AbaGPXcd (ORCPT ); Wed, 16 Jul 2014 19:32:33 -0400 Date: Wed, 16 Jul 2014 16:32:28 -0700 From: josh@joshtriplett.org To: Pranith Kumar Cc: paulmck@linux.vnet.ibm.com, Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , "open list:READ-COPY UPDATE..." Subject: Re: [PATCH 2/3] rcu: Remove stale comment in tree.c Message-ID: <20140716233228.GA30408@cloud> References: <1405463509-2468-1-git-send-email-bobby.prani@gmail.com> <1405463509-2468-2-git-send-email-bobby.prani@gmail.com> <20140715225313.GB24290@cloud> <53C5B1F7.3000409@gmail.com> <20140716124729.GR8690@linux.vnet.ibm.com> <53C67E2E.7080402@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53C67E2E.7080402@gmail.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 16, 2014 at 09:29:18AM -0400, Pranith Kumar wrote: > On 07/16/2014 08:47 AM, Paul E. McKenney wrote: > > On Tue, Jul 15, 2014 at 06:57:59PM -0400, Pranith Kumar wrote: > >> > >> On 07/15/2014 06:53 PM, josh@joshtriplett.org wrote: > >>> On Tue, Jul 15, 2014 at 06:31:48PM -0400, Pranith Kumar wrote: > >>>> This commit removes a stale comment in rcu/tree.c. > >>>> FYI, an updated comment exists a few lines below this. > >>>> > >>>> Signed-off-by: Pranith Kumar > >>> In general, when removing a stale comment, I'd suggest explaining why > >>> the comment is stale. Was code removed without removing the > >>> corresponding comment, or was code changed such that the comment no > >>> longer applies, or...? > >> > >> I guess it was left out when code was moved around previously. And I did mention that an updated comment is there a few lines below. > >> > >> For reference this is the new comment which is below the old comment, they mean the same :) > >> > >> /* Remove the outgoing CPU from the masks in the rcu_node hierarchy. */ > > > > Indeed that is the case. > > > > Please update the commit log with this explanation and resend. > > > > Thanx, Paul > > > > Please find the updated patch below. > > -- > Pranith > > From: Pranith Kumar > Date: Mon, 14 Jul 2014 16:01:05 -0400 > Subject: [PATCH 2/3] rcu: Remove stale comment in tree.c > > This commit removes a stale comment in rcu/tree.c which was left out when some > code was moved around previously. > > For reference, the following updated comment exists a few lines below this which > means the same. > > /* Remove the outgoing CPU from the masks in the rcu_node hierarchy. */ > > Signed-off-by: Pranith Kumar Reviewed-by: Josh Triplett > kernel/rcu/tree.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c > index a1abaa8..e67246e 100644 > --- a/kernel/rcu/tree.c > +++ b/kernel/rcu/tree.c > @@ -2211,8 +2211,6 @@ static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp) > /* Adjust any no-longer-needed kthreads. */ > rcu_boost_kthread_setaffinity(rnp, -1); > > - /* Remove the dead CPU from the bitmasks in the rcu_node hierarchy. */ > - > /* Exclude any attempts to start a new grace period. */ > mutex_lock(&rsp->onoff_mutex); > raw_spin_lock_irqsave(&rsp->orphan_lock, flags); > -- > 1.9.1 >