From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f70.google.com (mail-pl0-f70.google.com [209.85.160.70]) by kanga.kvack.org (Postfix) with ESMTP id A73FB6B0003 for ; Wed, 28 Feb 2018 20:31:18 -0500 (EST) Received: by mail-pl0-f70.google.com with SMTP id m6-v6so2437063plt.14 for ; Wed, 28 Feb 2018 17:31:18 -0800 (PST) Received: from bombadil.infradead.org (bombadil.infradead.org. [2607:7c80:54:e::133]) by mx.google.com with ESMTPS id b81si2097848pfj.331.2018.02.28.17.31.16 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 28 Feb 2018 17:31:17 -0800 (PST) Date: Wed, 28 Feb 2018 17:31:15 -0800 From: Matthew Wilcox Subject: Re: [PATCH v3 0/4] Split page_type out from mapcount Message-ID: <20180301013115.GA2946@bombadil.infradead.org> References: <20180228223157.9281-1-willy@infradead.org> <06c145aa-db40-df72-b626-da9d45f9111d@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <06c145aa-db40-df72-b626-da9d45f9111d@infradead.org> Sender: owner-linux-mm@kvack.org List-ID: To: Randy Dunlap Cc: linux-mm@kvack.org, Matthew Wilcox , Martin Schwidefsky , linux-kernel@vger.kernel.org On Wed, Feb 28, 2018 at 03:22:49PM -0800, Randy Dunlap wrote: > 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? Those KPF flags are the ones I was talking about. I haven't looked into what it takes to assign those flags yet. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org