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 E7A98C433FE for ; Mon, 28 Mar 2022 13:44:59 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 2EC098D0002; Mon, 28 Mar 2022 09:44:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 29BC78D0001; Mon, 28 Mar 2022 09:44:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 13B918D0002; Mon, 28 Mar 2022 09:44:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0137.hostedemail.com [216.40.44.137]) by kanga.kvack.org (Postfix) with ESMTP id 05EAC8D0001 for ; Mon, 28 Mar 2022 09:44:59 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id B10071827E8FF for ; Mon, 28 Mar 2022 13:44:58 +0000 (UTC) X-FDA: 79293915918.29.55F206E Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf11.hostedemail.com (Postfix) with ESMTP id 81E784001B for ; Mon, 28 Mar 2022 13:44:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=7IJJdkjW4MGrMcE+ZwqPBADegtcLO1s09CtJPZpUSfM=; b=V5vG30XPI45ixAqklBQV8pmSiB yeK7agmim930/Rw32uDEX2mffhfmmmyAPnmcHnkwTizhKFATGULoe3bwejjzQCW6G9WtR+Q5UStRx N9iDwXBnrY7nkor2L1YlaosBVvHY+0Phm7b5+m/mTLYysaRru9KZceHunCXcWZyqMni4GJq5YUbji pjlKzT/9Mwy4vigThQvDwbectXkAi0fs0fYRrLIHGyRyIWEBZcfJG7PSWIYdUDvF6IVWZtZtumuap nAGld0ntJF3E2IWPwF82tZ8IzfSvw+VRCHu8niJQmeH8jM4gSBFKpVrQyebFcEc+y6+AlHM3JZ40K krQ8cbvQ==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1nYpey-00GxwQ-QI; Mon, 28 Mar 2022 13:43:52 +0000 Date: Mon, 28 Mar 2022 14:43:52 +0100 From: Matthew Wilcox To: David Hildenbrand Cc: Andrew Morton , Yu Zhao , Linus Torvalds , Andi Kleen , Aneesh Kumar , Barry Song , Brian Geffon , Catalin Marinas , Daniel Byrne , Dave Hansen , Donald Carr , Hillf Danton , Holger =?iso-8859-1?Q?Hoffst=E4tte?= , Jan Alexander Steffens , Jens Axboe , Jesse Barnes , Johannes Weiner , Jonathan Corbet , Konstantin Kharlamov , Mel Gorman , Michael Larabel , Michal Hocko , Mike Rapoport , Oleksandr Natalenko , Rik van Riel , Shuang Zhai , Sofia Trinh , Steven Barrett , Suleiman Souhlal , Vaibhav Jain , Vlastimil Babka , Will Deacon , Ying Huang , Linux ARM , "open list:DOCUMENTATION" , Linux Kernel Mailing List , Linux-MM , Kernel Page Reclaim v2 , the arch/x86 maintainers Subject: Re: [page-reclaim] Re: [GIT PULL] Multi-gen LRU for 5.18-rc1 Message-ID: References: <20220326010003.3155137-1-yuzhao@google.com> <20220326134928.ad739eeecd5d0855dbdc6257@linux-foundation.org> <400edaab-7c6c-f4d1-9a94-e8d0803857fa@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <400edaab-7c6c-f4d1-9a94-e8d0803857fa@redhat.com> X-Rspam-User: X-Stat-Signature: ts71diacpft1qb7cxhr4eursq5u11j7t Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=V5vG30XP; spf=none (imf11.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 81E784001B X-HE-Tag: 1648475097-496105 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 Mon, Mar 28, 2022 at 02:29:20PM +0200, David Hildenbrand wrote: > I'd appreciate if we could merge most MM-related stuff through the -MM > tree; it exists for a reason IMHO. Andrew, you usually have a very good > feeling when something's ready to be merged upstream (sufficient review > from relevant folks, sufficient exposure via -mm and -next, ...). The problem is that the MM tree is completely unusable when patches going in through other trees need to be based on it. The MM workflow clearly works well for Andrew, but it doesn't work well for us as a community. Fortunately folios is past that point now, but I fear that maple tree will get to that point if it doesn't go in through Andrew's tree this cycle, as it may have other users.