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=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 3A838C433EF for ; Thu, 9 Sep 2021 12:45:35 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id BC5F4611CB for ; Thu, 9 Sep 2021 12:45:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org BC5F4611CB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 07F2B6B0072; Thu, 9 Sep 2021 08:45:34 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 02CC26B0073; Thu, 9 Sep 2021 08:45:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E35C2940007; Thu, 9 Sep 2021 08:45:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0069.hostedemail.com [216.40.44.69]) by kanga.kvack.org (Postfix) with ESMTP id CDD2F6B0072 for ; Thu, 9 Sep 2021 08:45:33 -0400 (EDT) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 5CE748249980 for ; Thu, 9 Sep 2021 12:45:33 +0000 (UTC) X-FDA: 78568006146.16.2C53ADF Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf14.hostedemail.com (Postfix) with ESMTP id B3E37600198D for ; Thu, 9 Sep 2021 12:45:32 +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=X+DHfour2T275x2f3sXezdMkcjb30TVhGkpa3sTBYZ0=; b=QAztk8QaSIVO5r4ElpGZOeH8UC RMz0t6ip+owsmmNPMjscLJsTAyE9jPx3I6gf1gudWGWixgW+I0awXRmNreN3WCOmRWrhPkzV9NHRq GHcV8L9jtNUW4O9NeIaj+nkl6koemtFgzdhTMUVo8ioNktkgdKiKb+GSq19S+XckK/hJZiy/MHPiU IVFfcWLmwk5YUDD56SjilIh79c3zyK+0AcczUl9PbxMAay0vLMKZuBHNK5bJSmxfYcJiQ8ZbonXhF Lh3h3is9wNQia7Pe+FEXVBxky+HihOvZgLwAaqsWBUTfiO4+CdBni/TikxZmLmcBtZWQWtcHyVV9x WMiBzCRg==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mOJPJ-009rhw-DV; Thu, 09 Sep 2021 12:44:12 +0000 Date: Thu, 9 Sep 2021 13:43:57 +0100 From: Christoph Hellwig To: Matthew Wilcox Cc: Linus Torvalds , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Andrew Morton Subject: Re: [GIT PULL] Memory folios for v5.15 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: B3E37600198D X-Stat-Signature: 4s8og5wmyr89qsshn5kcfkm17s1ngsdg Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=QAztk8Qa; spf=none (imf14.hostedemail.com: domain of BATV+ab606af41e2b6213a0ed+6591+infradead.org+hch@casper.srs.infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=BATV+ab606af41e2b6213a0ed+6591+infradead.org+hch@casper.srs.infradead.org; dmarc=none X-HE-Tag: 1631191532-797632 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: So what is the result here? Not having folios (with that or another name) is really going to set back making progress on sane support for huge pages. Both in the pagecache but also for other places like direct I/O.