From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on archive.lwn.net X-Spam-Level: X-Spam-Status: No, score=-6.0 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by archive.lwn.net (Postfix) with ESMTP id 02F9B7D923 for ; Wed, 24 Apr 2019 16:15:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732571AbfDXQO6 (ORCPT ); Wed, 24 Apr 2019 12:14:58 -0400 Received: from ms.lwn.net ([45.79.88.28]:55482 "EHLO ms.lwn.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727913AbfDXQO5 (ORCPT ); Wed, 24 Apr 2019 12:14:57 -0400 Received: from lwn.net (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id 8E6621AA; Wed, 24 Apr 2019 16:14:56 +0000 (UTC) Date: Wed, 24 Apr 2019 10:14:55 -0600 From: Jonathan Corbet To: Mike Rapoport Cc: linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] docs/vm: add documentation of memory models Message-ID: <20190424101455.12cd407e@lwn.net> In-Reply-To: <1556101715-31966-1-git-send-email-rppt@linux.ibm.com> References: <1556101715-31966-1-git-send-email-rppt@linux.ibm.com> Organization: LWN.net MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Wed, 24 Apr 2019 13:28:35 +0300 Mike Rapoport wrote: > Describe what {FLAT,DISCONTIG,SPARSE}MEM are and how they manage to > maintain pfn <-> struct page correspondence. Quick question: should this document perhaps mention that DISCONTIGMEM appears to be on its way out? Thanks, jon