From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756722AbcILF1j (ORCPT ); Mon, 12 Sep 2016 01:27:39 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:50479 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751712AbcILF1c (ORCPT ); Mon, 12 Sep 2016 01:27:32 -0400 X-IBM-Helo: d23dlp02.au.ibm.com X-IBM-MailFrom: khandual@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org Date: Mon, 12 Sep 2016 10:57:14 +0530 From: Anshuman Khandual User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Dave Hansen , Anshuman Khandual , linux-mm@kvack.org, linux-kernel@vger.kernel.org CC: akpm@linux-foundation.org Subject: Re: [PATCH V4] mm: Add sysfs interface to dump each node's zonelist information References: <1473150666-3875-1-git-send-email-khandual@linux.vnet.ibm.com> <1473302818-23974-1-git-send-email-khandual@linux.vnet.ibm.com> <57D1C914.9090403@intel.com> In-Reply-To: <57D1C914.9090403@intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16091205-0008-0000-0000-000000BD86C6 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16091205-0009-0000-0000-0000080B63BD Message-Id: <57D63CB2.8070003@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-09-12_03:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609020000 definitions=main-1609120088 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/09/2016 01:54 AM, Dave Hansen wrote: > On 09/07/2016 07:46 PM, Anshuman Khandual wrote: >> > after memory or node hot[un]plug is desirable. This change adds one >> > new sysfs interface (/sys/devices/system/memory/system_zone_details) >> > which will fetch and dump this information. > Doesn't this violate the "one value per file" sysfs rule? Does it > belong in debugfs instead? Yeah sure. Will make it a debugfs interface. > > I also really question the need to dump kernel addresses out, filtered > or not. What's the point? Hmm, thought it to be an additional information. But yes its additional and can be dropped.