From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964945AbeB1XW4 (ORCPT ); Wed, 28 Feb 2018 18:22:56 -0500 Received: from merlin.infradead.org ([205.233.59.134]:35248 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964783AbeB1XWy (ORCPT ); Wed, 28 Feb 2018 18:22:54 -0500 Subject: Re: [PATCH v3 0/4] Split page_type out from mapcount To: Matthew Wilcox , linux-mm@kvack.org Cc: Matthew Wilcox , Martin Schwidefsky , linux-kernel@vger.kernel.org References: <20180228223157.9281-1-willy@infradead.org> From: Randy Dunlap Message-ID: <06c145aa-db40-df72-b626-da9d45f9111d@infradead.org> Date: Wed, 28 Feb 2018 15:22:49 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <20180228223157.9281-1-willy@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/28/2018 02:31 PM, Matthew Wilcox wrote: > From: Matthew Wilcox > > I want to use the _mapcount field to record what a page is in use as. > This can help with debugging and we can also expose that information to > userspace through /proc/kpageflags to help diagnose memory usage (not > included as part of this patch set). Hey, Will there be updates to tools/vm/ also, or are these a different set of (many) flags? thanks, -- ~Randy