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 X-Spam-Level: X-Spam-Status: No, score=-6.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D1EC1C47082 for ; Mon, 31 May 2021 21:41:37 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 58C7A6101C for ; Mon, 31 May 2021 21:41:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 58C7A6101C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BB7706B0036; Mon, 31 May 2021 17:41:36 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B67AE8D0002; Mon, 31 May 2021 17:41:36 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A56588D0001; Mon, 31 May 2021 17:41:36 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0221.hostedemail.com [216.40.44.221]) by kanga.kvack.org (Postfix) with ESMTP id 7269F6B0036 for ; Mon, 31 May 2021 17:41:36 -0400 (EDT) Received: from smtpin37.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 0D73B8249980 for ; Mon, 31 May 2021 21:41:36 +0000 (UTC) X-FDA: 78202848192.37.3B5071A Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf07.hostedemail.com (Postfix) with ESMTP id 8A330A00025D for ; Mon, 31 May 2021 21:41:23 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 4F7F761005; Mon, 31 May 2021 21:41:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1622497289; bh=H2WLMsKJwsJTdkHL+YrGxee/qD2u+/tQaEtbrsoPLmc=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=0zenZpS8clh6zjSsj3W3sDHD397nXxO4EI4+r60fm4T23eznAe0wgGWqqoF8lN2By CTXgCJdhkrIQvxIu3ViDsJSmY/csqYeUTuBDx0OLQDkiO5OQQfaGmFmEna2hnbm09g 4C37AeWwJMB+iBpSo1AStoa2Htx/1/AWzs4xFfSU= Date: Mon, 31 May 2021 14:41:28 -0700 From: Andrew Morton To: Feng Tang Cc: linux-mm@kvack.org, Michal Hocko , David Rientjes , Dave Hansen , Ben Widawsky , linux-kernel@vger.kernel.org, Andrea Arcangeli , Mel Gorman , Mike Kravetz , Randy Dunlap , Vlastimil Babka , Andi Kleen , Dan Williams , ying.huang@intel.com Subject: Re: [v3 PATCH 0/3] mm/mempolicy: some fix and semantics cleanup Message-Id: <20210531144128.e69aaf2904e83ae170f00f06@linux-foundation.org> In-Reply-To: <1622469956-82897-1-git-send-email-feng.tang@intel.com> References: <1622469956-82897-1-git-send-email-feng.tang@intel.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 8A330A00025D Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=0zenZpS8; dmarc=none; spf=pass (imf07.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org X-Rspamd-Server: rspam03 X-Stat-Signature: uxesw3omjirmrfnqsk9kgtbuo7xquhpk X-HE-Tag: 1622497283-554861 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, 31 May 2021 22:05:53 +0800 Feng Tang wrote: > We've posted v4 patchset introducing a new "perfer-many" memory policy > https://lore.kernel.org/lkml/1615952410-36895-1-git-send-email-feng.tang@intel.com/ , > for which Michal Hocko gave many comments while pointing out some > problems, and we also found some semantics confusion about 'prefer' > and 'local' policy, as well as some duplicated code. This patchset > tries to address them. Please help to review, thanks! > > The patchset has been run with some sanity test like 'stress-ng' > and 'ltp', and no problem found. None of the above is suitable for the [0/n] overall description. I copied-n-pasted the v1 cover letter from the above link. Please check that it is all still correct and up to date. If not, please send along replacement text, thanks.