From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754678AbaHHEOL (ORCPT ); Fri, 8 Aug 2014 00:14:11 -0400 Received: from linuxhacker.ru ([217.76.32.60]:58476 "EHLO fiona.linuxhacker.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751816AbaHHEOI convert rfc822-to-8bit (ORCPT ); Fri, 8 Aug 2014 00:14:08 -0400 X-Greylist: delayed 627 seconds by postgrey-1.27 at vger.kernel.org; Fri, 08 Aug 2014 00:14:07 EDT Subject: Re: [PATCH] staging/lustre: use rcu_dereference to access rcu protected current->real_parent field Mime-Version: 1.0 (Apple Message framework v1283) Content-Type: text/plain; charset=us-ascii From: Oleg Drokin In-Reply-To: <20140808034951.GA6626@kroah.com> Date: Fri, 8 Aug 2014 00:03:20 -0400 Cc: Evgeny Budilovsky , devel@driverdev.osuosl.org, Andreas Dilger , Peng Tao , linux-kernel@vger.kernel.org, Lai Siyao Content-Transfer-Encoding: 8BIT Message-Id: References: <87k36ltoob.fsf@gmail.com> <20140806214216.GA16530@kroah.com> <20140808034951.GA6626@kroah.com> To: Greg Kroah-Hartman X-Mailer: Apple Mail (2.1283) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! On Aug 7, 2014, at 11:49 PM, Greg Kroah-Hartman wrote: >> >> This is not a critical bug and in the worst case the code here may >> cause miss of statistics counter increase. >> This is why I think it is not worth to backport the patch at all. > You are right, and if this is just for some random "statistics" file, > can we just delete the whole function? I hope not! This is used all around the client to tally up various operations executed counts. The statistic is then used by various userspace monitoring tools. Bye, Oleg