From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 7F00681E88 for ; Thu, 10 Nov 2016 20:12:33 -0800 (PST) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id uAB48TQD010106 for ; Thu, 10 Nov 2016 23:12:36 -0500 Received: from e23smtp08.au.ibm.com (e23smtp08.au.ibm.com [202.81.31.141]) by mx0a-001b2d01.pphosted.com with ESMTP id 26n1byt5n8-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Thu, 10 Nov 2016 23:12:36 -0500 Received: from localhost by e23smtp08.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 11 Nov 2016 14:12:34 +1000 Received: from d23relay06.au.ibm.com (d23relay06.au.ibm.com [9.185.63.219]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id 30E782BB0057 for ; Fri, 11 Nov 2016 15:12:33 +1100 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay06.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id uAB4CWiW36634732 for ; Fri, 11 Nov 2016 15:12:32 +1100 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id uAB4CWmc022121 for ; Fri, 11 Nov 2016 15:12:32 +1100 Subject: Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps References: <147881591739.39198.1358237993213024627.stgit@dwillia2-desk3.amr.corp.intel.com> From: Anshuman Khandual Date: Fri, 11 Nov 2016 09:42:18 +0530 MIME-Version: 1.0 In-Reply-To: <147881591739.39198.1358237993213024627.stgit@dwillia2-desk3.amr.corp.intel.com> Message-Id: <58254522.70008@linux.vnet.ibm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" To: Dan Williams , akpm@linux-foundation.org Cc: linux-mm@kvack.org, Dave Hansen , Christoph Hellwig , linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org List-ID: On 11/11/2016 03:41 AM, Dan Williams wrote: > ZONE_DEVICE pages are mapped into a process via the filesystem-dax and > device-dax mechanisms. There are also proposals to use ZONE_DEVICE > pages for other usages outside of dax. Add statistics to smaps so > applications can debug that they are obtaining the mappings they expect, > or otherwise accounting them. This might also help when we will have ZONE_DEVICE based solution for HMM based device memory. _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm