From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92797C433EF for ; Thu, 7 Apr 2022 09:08:40 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id DA2946B0071; Thu, 7 Apr 2022 05:08:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D51846B0073; Thu, 7 Apr 2022 05:08:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C18606B0074; Thu, 7 Apr 2022 05:08:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.28]) by kanga.kvack.org (Postfix) with ESMTP id B26C36B0071 for ; Thu, 7 Apr 2022 05:08:29 -0400 (EDT) Received: from smtpin19.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 7694A28C62 for ; Thu, 7 Apr 2022 09:08:19 +0000 (UTC) X-FDA: 79329506718.19.EB000EC Received: from mail-ua1-f47.google.com (mail-ua1-f47.google.com [209.85.222.47]) by imf19.hostedemail.com (Postfix) with ESMTP id CA90A1A0003 for ; Thu, 7 Apr 2022 09:08:18 +0000 (UTC) Received: by mail-ua1-f47.google.com with SMTP id t12so3230091uap.9 for ; Thu, 07 Apr 2022 02:08:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=6oyzUUsDsP7WzlUuQJplNjzt5un2oXahWVrU3GKQPuI=; b=BEKfjEYesu4xxuGItEJPl+h/svVPiup/e4mDMVBM/crzcZXc/qK8KXuCZaIuRK54Kx Jzj1b892Dg8IaxwsCNIu6NZaNjk8xMFZ2GlcMmHcenRDB6NZoQt03/iELcT9++s6pMrL 5TMbLvnB5YKDSikzvv0x0xa66Xb6b+8yIwa//ac1UIhyN8UfHM5BhwbjcW2d+972BwP/ OzUhzLgCDQua4+8Yx1DRIMISpG3dSIruPY036DG6mrXI9AafC6X/q+tD9ESuUQyL+4Ud fShCC1270vyTOeN2fRtMC6jm/sM8jn3d/V4YS3pOiP5Tks8JQ6HcgYzgxtHW9i70hs3P 9/pA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=6oyzUUsDsP7WzlUuQJplNjzt5un2oXahWVrU3GKQPuI=; b=fpXAOathDq0o920UCr3P/e89lnlW/CkWVfQwLHcRKAK2Yh01AcJ01tWHETtBDQcLky 1FNcdbnCa5Q2RoLN/SLezmnFyEROa26Wd50M1OybZMa8x/Tvc6bOsDqeo8E1wu4EqAqI pV9wyeqZ/6nCmT5KovU4ZQ93wsRqvL2nhMfC9J/r8sjw1mSCJYBxnJlfBNsZAdD6Tb4S NVZAl7SiEuN2KBl9B7T8K5rStfNklmZmxxbf6NzCyPJ2tD71yYAJvJk4j3rjUiztG5ZY Zd5M8n8GQ1I4pHP2gH1lwHQsyAc2mup7zEJQOgCZ0Bel55CZDdbc2OZfnyEP9R1a2IfU tPnA== X-Gm-Message-State: AOAM530xiPx/5CpFvGEUJ1jEP7ABAp5VmLCTovuhscUyR2ldJptNbfzK d0fjGB/mzW3LUtMdUBWeoXuu4Q2ewJNURqZcqkY55A== X-Google-Smtp-Source: ABdhPJwRIUxVBC7LgYZPPCGVWUkXd0Jiwm7u+cd4Q61f75FZX/O7eUiX7MXlRBW1fHxpoz/IApfjXak8IwLQEOsL5Qo= X-Received: by 2002:a9f:23e4:0:b0:35c:d4cf:c96f with SMTP id 91-20020a9f23e4000000b0035cd4cfc96fmr3834873uao.17.1649322497880; Thu, 07 Apr 2022 02:08:17 -0700 (PDT) MIME-Version: 1.0 References: <20220407031525.2368067-1-yuzhao@google.com> <20220407183112.2cb5b627@canb.auug.org.au> In-Reply-To: <20220407183112.2cb5b627@canb.auug.org.au> From: Yu Zhao Date: Thu, 7 Apr 2022 03:08:06 -0600 Message-ID: Subject: Re: [PATCH v10 00/14] Multi-Gen LRU Framework To: Stephen Rothwell Cc: Linux-MM , Andi Kleen , Andrew Morton , Aneesh Kumar , Barry Song <21cnbao@gmail.com>, Catalin Marinas , Dave Hansen , Hillf Danton , Jens Axboe , Jesse Barnes , Johannes Weiner , Jonathan Corbet , Linus Torvalds , Matthew Wilcox , Mel Gorman , Michael Larabel , Michal Hocko , Mike Rapoport , Rik van Riel , Vlastimil Babka , Will Deacon , Ying Huang , Linux ARM , "open list:DOCUMENTATION" , linux-kernel , Kernel Page Reclaim v2 , "the arch/x86 maintainers" Content-Type: text/plain; charset="UTF-8" Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=BEKfjEYe; spf=pass (imf19.hostedemail.com: domain of yuzhao@google.com designates 209.85.222.47 as permitted sender) smtp.mailfrom=yuzhao@google.com; dmarc=pass (policy=reject) header.from=google.com X-Stat-Signature: ez5ohncrrm9n89zcphz1cohhgwkik8tw X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: CA90A1A0003 X-HE-Tag: 1649322498-978578 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Apr 7, 2022 at 2:31 AM Stephen Rothwell wrote: > > Hi Yu, > > On Wed, 6 Apr 2022 21:24:27 -0600 Yu Zhao wrote: > > > > Can you please include this patchset in linux-next? Git repo for you to fetch: > > > > https://linux-mm.googlesource.com/mglru for-linux-next > > I get a message saying "This repository is empty. Push to it to show > branches and history." :-( Sorry about that > > My goal is to get additional test coverage before I send a pull > > request for 5.19 to Linus. > > Good idea :-) > > > I've explored all avenues, but ultimately I've failed to rally > > substantial support from the MM stakeholders [1]. There are no pending > > technical issues against this patchset [2]. What is more concerning > > are the fundamental disagreements on priorities, methodologies, etc. > > that are not specific to this patchset and have been hindering our > > progress as a collective. (Cheers to the mutual dissatisfaction.) > > I have not been following the discussion as I am not an mm person, but > this is not a good sign. > > > While we plan to discuss those issues during the LSFMM next month, it > > doesn't seem reasonable to leave this patchset hanging in the air, > > since it has reached its maturity a while ago and there are strong > > demands from downstream kernels as well as a large user base. Thus I > > sent that pull request to Linus a couple of weeks ago, implying that > > he would have to make the final decision soon. > > > > I hope this gives enough background about what's been going on with > > this patchset. If you decide to take it and it causes you any > > troubles, please feel free to yell at me. > > > > Thanks! > > > > [1] https://lore.kernel.org/r/20220104202227.2903605-1-yuzhao@google.com/ > > [2] https://lore.kernel.org/r/20220326010003.3155137-1-yuzhao@google.com/ > > I had a look at those threads and I guess things are better that your > comment above implies. > > So, a couple of questions: > > Have you done a trial merge with a current linux-next tree to see what > sort of mess/pain we may already be in? > > Is it all stable enough now that it could be sent as a patch series for > Andrew to include in mmotm (with perhaps just smallish followup patches)? > > -- > Cheers, > Stephen Rothwell