From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754979Ab0IARdF (ORCPT ); Wed, 1 Sep 2010 13:33:05 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:45150 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751564Ab0IARdD (ORCPT ); Wed, 1 Sep 2010 13:33:03 -0400 Date: Wed, 1 Sep 2010 19:32:53 +0200 From: Ingo Molnar To: Steven Rostedt Cc: Frederic Weisbecker , Peter Zijlstra , Avi Kivity , Li Zefan , kvm-devel , Linux Kernel Mailing List Subject: Re: ftrace/perf_event leak Message-ID: <20100901173253.GC23357@elte.hu> References: <4C7E11E5.1040402@redhat.com> <1283331868.2059.808.camel@laptop> <4C7E1C36.6070400@redhat.com> <4C7E1F12.8030304@cn.fujitsu.com> <4C7E2D1D.3080603@redhat.com> <1283338977.2059.938.camel@laptop> <20100901121518.GA5378@nowhere> <1283349585.2356.1.camel@gandalf.stny.rr.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1283349585.2356.1.camel@gandalf.stny.rr.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Steven Rostedt wrote: > On Wed, 2010-09-01 at 14:15 +0200, Frederic Weisbecker wrote: > > > Thanks for fixing this. > > > > However, can we split this in two patches to ease the backport? > > > > The lack of a module_put() after perf_trace_init() failure is there for a while > > (the backport needs to start in 2.6.32). > > > > But the lack of a module_put in the destroy path needs a .35 backport only. > > I don't think it really needs two patches. Just notify stable (and > Greg KH in particular) about the backport requirements. Greg can > handle it ;) Well, Greg certainly has more than enough to handle, so if there's different chunks with different -stable vectors then it would be most helpful to him to split things up! Manually trying to split up patches is both error-prone and stress-inducing. Thanks, Ingo