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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 53AA7C43381 for ; Tue, 26 Feb 2019 15:19:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1E9922184D for ; Tue, 26 Feb 2019 15:19:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551194340; bh=ZfUXW60lTmMHJodxznqxAxhb1fOgDa92tEHZx6J1my4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=HQ+eDPSKQvuDv+GS6p/DUkC+NI+Ln4Z4JeuRJe6v1YLUs3ng7B02sXgLzEa5lJZ2S 1vnc5tFs7x+pbNXU/hfqwKt4XVb3msP0qzo28eKal2d1d50ObGUz+8iFlXR/yLz1Fn HhUrrQJ1rH911rKGfHhdWJYwphobNzYb9VwP6OFw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727406AbfBZPS6 (ORCPT ); Tue, 26 Feb 2019 10:18:58 -0500 Received: from mx2.suse.de ([195.135.220.15]:45550 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726151AbfBZPS6 (ORCPT ); Tue, 26 Feb 2019 10:18:58 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 51C31AE83; Tue, 26 Feb 2019 15:18:57 +0000 (UTC) Date: Tue, 26 Feb 2019 16:18:56 +0100 From: Michal Hocko To: Robin Murphy Cc: David Hildenbrand , linux-mm@kvack.org, linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org, akpm@linux-foundation.org, osalvador@suse.de Subject: Re: [PATCH v2] mm/memory-hotplug: Add sysfs hot-remove trigger Message-ID: <20190226151856.GE10588@dhcp22.suse.cz> References: <49ef5e6c12f5ede189419d4dcced5dc04957c34d.1549906631.git.robin.murphy@arm.com> <20190212083310.GM15609@dhcp22.suse.cz> <20190212151146.GA15609@dhcp22.suse.cz> <1ea6a40d-be86-6ccc-c728-fa8effbd5a8e@redhat.com> <8793f49d-756f-960d-9b26-7eaedfccd90e@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8793f49d-756f-960d-9b26-7eaedfccd90e@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 26-02-19 15:12:40, Robin Murphy wrote: [...] > The back of my mind is still ticking over trying to think up a really nice > design for a self-contained debugfs or module-parameter interface completely > independent of ARCH_MEMORY_PROBE - I'll probably keep using this hack > locally to finish off the arm64 hot-remove stuff, but once that's done (or > if inspiration strikes in the meantime) then I'll try to come back with a > prototype of the developer interface that I'd find most useful. Would it make more sense to add a module to the testing machinery? -- Michal Hocko SUSE Labs