From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu Desnoyers Subject: Re: linux-next: manual merge of the rseq tree with Linus' tree Date: Thu, 16 Nov 2017 15:21:14 +0000 (UTC) Message-ID: <2081439912.16582.1510845674173.JavaMail.zimbra@efficios.com> References: <20171115153536.7fab87b7@canb.auug.org.au> <20171115080712.tehklwmcvol7iiic@gmail.com> <20171116014826.5228aa7c@canb.auug.org.au> <1489656964.15813.1510758032885.JavaMail.zimbra@efficios.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail.efficios.com ([167.114.142.141]:53814 "EHLO mail.efficios.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757959AbdKPPU0 (ORCPT ); Thu, 16 Nov 2017 10:20:26 -0500 In-Reply-To: <1489656964.15813.1510758032885.JavaMail.zimbra@efficios.com> Sender: linux-next-owner@vger.kernel.org List-ID: To: Stephen Rothwell , Linus Torvalds Cc: Ingo Molnar , Linux-Next Mailing List , linux-kernel , Andy Lutomirski , Borislav Petkov , Andrew Morton , "H. Peter Anvin" , Peter Zijlstra , Thomas Gleixner ----- On Nov 15, 2017, at 10:00 AM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote: > ----- On Nov 15, 2017, at 9:48 AM, Stephen Rothwell sfr@canb.auug.org.au wrote: > >> Hi Ingo, >> >> On Wed, 15 Nov 2017 09:07:12 +0100 Ingo Molnar wrote: >>> >>> There's absolutely no way such invasive x86 changes should be done outside the >>> x86 >>> tree and be merged into linux-next. >>> >>> linux-next should be for the regular maintenance flow, for changes pushed by >>> maintainers and part of the regular maintenance process - not for >>> work-in-progress >>> features that may or may not be merged upstream in that form ... >> >> Sure. I was given the impression that Linus was going to be asked to >> merge this tree during this merge window, so I assumed that it had been >> seen by the appropriate people. Most of these patches include you, >> Linus and Andrew (among others) on their cc's and they seem to have >> gone through several revisions. >> >> I guess Mathieu has jumped the gun. > > The membarrier core serializing command has been developed in the open > since Aug. 27, 2017 [1]. That's one full development cycle. On Sept 28, > 2017, I started CCing Ingo when I noticed I would have to add documentation > to each architecture return-to-usermode paths [2]. I have never heard feedback > from him until now. > > I am open to remove the x86-specific membarrier core serializing patch from > my tree and hand it to the x86 maintainers after the generic code makes it > into Linus' tree, if this is seen as the appropriate way forward. Hi Stephen, fyi, I removed the core serializing membarrier commits from the linux-rseq rseq/for-next branch. That work will indeed be postponed to the 4.16 queue. Thanks, Mathieu > > Thanks, > > Mathieu > > [1] > http://lkml.kernel.org/r/20170827195404.22171-2-mathieu.desnoyers@efficios.com > [2] > http://lkml.kernel.org/r/911707916.20840.1506605496314.JavaMail.zimbra@efficios.com > > >> >> I'll drop it again tomorrow. >> >> -- >> Cheers, >> Stephen Rothwell > > -- > Mathieu Desnoyers > EfficiOS Inc. > http://www.efficios.com -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com