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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED 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 6BAC9C433E0 for ; Tue, 23 Jun 2020 01:22:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 419C220720 for ; Tue, 23 Jun 2020 01:22:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731925AbgFWBWt (ORCPT ); Mon, 22 Jun 2020 21:22:49 -0400 Received: from out30-131.freemail.mail.aliyun.com ([115.124.30.131]:35673 "EHLO out30-131.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731765AbgFWBWt (ORCPT ); Mon, 22 Jun 2020 21:22:49 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R201e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01422;MF=richard.weiyang@linux.alibaba.com;NM=1;PH=DS;RN=11;SR=0;TI=SMTPD_---0U0SetIO_1592875365; Received: from localhost(mailfrom:richard.weiyang@linux.alibaba.com fp:SMTPD_---0U0SetIO_1592875365) by smtp.aliyun-inc.com(127.0.0.1); Tue, 23 Jun 2020 09:22:46 +0800 Date: Tue, 23 Jun 2020 09:22:45 +0800 From: Wei Yang To: David Hildenbrand Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Johannes Weiner , Michal Hocko , Minchan Kim , Huang Ying , Wei Yang , Mel Gorman , Dan Williams Subject: Re: [PATCH v2 3/3] mm/shuffle: remove dynamic reconfiguration Message-ID: <20200623012245.GA99806@L-31X9LVDL-1304.local> Reply-To: Wei Yang References: <20200619125923.22602-1-david@redhat.com> <20200619125923.22602-4-david@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200619125923.22602-4-david@redhat.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 19, 2020 at 02:59:22PM +0200, David Hildenbrand wrote: >Commit e900a918b098 ("mm: shuffle initial free memory to improve >memory-side-cache utilization") promised "autodetection of a >memory-side-cache (to be added in a follow-on patch)" over a year ago. > >The original series included patches [1], however, they were dropped >during review [2] to be followed-up later. > >Due to lack of platforms that publish an HMAT, autodetection is currently >not implemented. However, manual activation is actively used [3]. Let's >simplify for now and re-add when really (ever?) needed. > >[1] https://lkml.kernel.org/r/154510700291.1941238.817190985966612531.stgit@dwillia2-desk3.amr.corp.intel.com >[2] https://lkml.kernel.org/r/154690326478.676627.103843791978176914.stgit@dwillia2-desk3.amr.corp.intel.com >[3] https://lkml.kernel.org/r/CAPcyv4irwGUU2x+c6b4L=KbB1dnasNKaaZd6oSpYjL9kfsnROQ@mail.gmail.com > >Cc: Andrew Morton >Cc: Johannes Weiner >Cc: Michal Hocko >Cc: Minchan Kim >Cc: Huang Ying >Cc: Wei Yang >Cc: Mel Gorman >Cc: Dan Williams >Signed-off-by: David Hildenbrand Reviewed-by: Wei Yang -- Wei Yang Help you, Help me