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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=unavailable 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 22941C31E44 for ; Mon, 17 Jun 2019 07:05:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EF000218DA for ; Mon, 17 Jun 2019 07:05:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (4096-bit key) header.d=d-silva.org header.i=@d-silva.org header.b="NGiJvBHc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726027AbfFQHFx (ORCPT ); Mon, 17 Jun 2019 03:05:53 -0400 Received: from ushosting.nmnhosting.com ([66.55.73.32]:39872 "EHLO ushosting.nmnhosting.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725778AbfFQHFx (ORCPT ); Mon, 17 Jun 2019 03:05:53 -0400 Received: from mail2.nmnhosting.com (unknown [202.169.106.97]) by ushosting.nmnhosting.com (Postfix) with ESMTPS id 31E9E2DC00DD; Mon, 17 Jun 2019 03:05:50 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=d-silva.org; s=201810a; t=1560755150; bh=TotXHfC7mkapkJQ2eQkYpljIPSR0AGxVy5++z04zxGQ=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=NGiJvBHcjG+CIJgh2IA052h5ANspPN8jd6fbOzhRCeYoBkvDtYW+xqsOtyM2owh+k 4I9pLIhjyYJt5cgWRd28JYXp0bTSacf9BS/6eJz79G4zkKDIgkw9/n0k8lHtFL3LYp v6tzGJy8rz0AsiUeHmLRARxW04mbdQIaGytijoRJI+CsPgvLrNSlEWtF8+pQvi/FLC q0pXW1PJbIhDE4w+Es0IRXymmb6XQY8I2CCHKSA0okkQJOroNpGsWvNPvzkkluzmSe nI7bFZ3e2yV6m+5WsqT9A3jJepIOzW9z8JppoC0qktOWqNlBfmgSlBIWhb/PoN81MJ JKgebF9nGgSxXHZsWCTsEeDnYxPk/FCZlReafmBAy4zMLzfAKV/09mSMxtjxVl3hbi Iv4+6f6qw0YG+ODfXXtHDaPBQyac3wi6mHDBVabHjDUGlUpxQ/9oBxTIGVnSXjkcOr TMZ2EN5AYJY6QToHs1sZLafhiOVj3hh66/5+qwuTIpzwKMGQgiJ5lWeiZBLgrWz4P5 EKcMctBcYaUoVyx6Fo4znLsXbgY2xD8wLUao2qjobGSSPvVBSrmKc0p6YuWv5cNS9X JmmB1UF1DlY3K1Sj4QirQKVF2VopERlT4pcRhBeBhtPSbH2KloRI6VOS0aoo0bLBWT qX8Q1bXR5rLneh8uTOVhd0rI= Received: from adsilva.ozlabs.ibm.com (static-82-10.transact.net.au [122.99.82.10] (may be forged)) (authenticated bits=0) by mail2.nmnhosting.com (8.15.2/8.15.2) with ESMTPSA id x5H75Utj056973 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NO); Mon, 17 Jun 2019 17:05:46 +1000 (AEST) (envelope-from alastair@d-silva.org) Message-ID: Subject: Re: [PATCH 5/5] mm/hotplug: export try_online_node From: "Alastair D'Silva" To: Peter Zijlstra Cc: Andrew Morton , David Hildenbrand , Oscar Salvador , Michal Hocko , Pavel Tatashin , Wei Yang , Arun KS , Qian Cai , Thomas Gleixner , Ingo Molnar , Josh Poimboeuf , Jiri Kosina , Mukesh Ojha , Mike Rapoport , Baoquan He , Logan Gunthorpe , linux-mm@kvack.org, linux-kernel@vger.kernel.org Date: Mon, 17 Jun 2019 17:05:30 +1000 In-Reply-To: <20190617065921.GV3436@hirez.programming.kicks-ass.net> References: <20190617043635.13201-1-alastair@au1.ibm.com> <20190617043635.13201-6-alastair@au1.ibm.com> <20190617065921.GV3436@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.32.2 (3.32.2-1.fc30) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.2 (mail2.nmnhosting.com [10.0.1.20]); Mon, 17 Jun 2019 17:05:46 +1000 (AEST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2019-06-17 at 08:59 +0200, Peter Zijlstra wrote: > On Mon, Jun 17, 2019 at 02:36:31PM +1000, Alastair D'Silva wrote: > > From: Alastair D'Silva > > > > If an external driver module supplies physical memory and needs to > > expose > > Why would you ever want to allow a module to do such a thing? > I'm working on a driver for Storage Class Memory, connected via an OpenCAPI link. The memory is only usable once the card says it's OK to access it. -- Alastair D'Silva mob: 0423 762 819 skype: alastair_dsilva Twitter: @EvilDeece blog: http://alastair.d-silva.org