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=-0.7 required=3.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 ADE01CA9EAF for ; Tue, 22 Oct 2019 01:41:34 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 433A2214B2 for ; Tue, 22 Oct 2019 01:41:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 433A2214B2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sina.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A91796B0003; Mon, 21 Oct 2019 21:41:33 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A42A26B0006; Mon, 21 Oct 2019 21:41:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 97F566B0007; Mon, 21 Oct 2019 21:41:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0170.hostedemail.com [216.40.44.170]) by kanga.kvack.org (Postfix) with ESMTP id 764146B0003 for ; Mon, 21 Oct 2019 21:41:33 -0400 (EDT) Received: from smtpin19.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id 1E4D55DD8 for ; Tue, 22 Oct 2019 01:41:33 +0000 (UTC) X-FDA: 76069718466.19.duck76_479726cb3bd62 X-HE-Tag: duck76_479726cb3bd62 X-Filterd-Recvd-Size: 1678 Received: from r3-23.sinamail.sina.com.cn (r3-23.sinamail.sina.com.cn [202.108.3.23]) by imf16.hostedemail.com (Postfix) with SMTP for ; Tue, 22 Oct 2019 01:41:31 +0000 (UTC) Received: from unknown (HELO localhost.localdomain)([222.131.66.83]) by sina.com with ESMTP id 5DAE5E47000340E3; Tue, 22 Oct 2019 09:41:29 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com X-SMAIL-MID: 10010154919331 From: Hillf Danton To: Matthew Wilcox , Hillf Danton Cc: linux-mm , Andrew Morton , linux-kernel , Michal Hocko , Johannes Weiner , Shakeel Butt , Minchan Kim , Mel Gorman , Vladimir Davydov , Jan Kara Subject: Re: [RFC v1] mm: add page preemption Date: Tue, 22 Oct 2019 09:41:17 +0800 Message-Id: <20191022014117.12696-1-hdanton@sina.com> In-Reply-To: <20191020134304.11700-1-hdanton@sina.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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 Sun, 20 Oct 2019 08:24:00 -0700 Matthew Wilcox wrote: > On Sun, Oct 20, 2019 at 09:43:04PM +0800, Hillf Danton wrote: > > First on the page side, page->prio that is used to mirror the prio > > of page owner tasks is added, and a couple of helpers for setting, > > copying and comparing page->prio to help to add pages to lru. >=20 > Um, no. struct page is 64 bytes and shall remain so without a very ver= y > good reason. Queued on todo list. Thanks:) Hillf