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=-2.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,URIBL_BLOCKED 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 C31D0C04EB8 for ; Thu, 6 Dec 2018 06:05:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 86E6C20989 for ; Thu, 6 Dec 2018 06:05:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="SemlZ3Zz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 86E6C20989 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729112AbeLFGF3 (ORCPT ); Thu, 6 Dec 2018 01:05:29 -0500 Received: from aserp2130.oracle.com ([141.146.126.79]:48928 "EHLO aserp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728294AbeLFGF2 (ORCPT ); Thu, 6 Dec 2018 01:05:28 -0500 Received: from pps.filterd (aserp2130.oracle.com [127.0.0.1]) by aserp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id wB65xi1C188185; Thu, 6 Dec 2018 06:04:48 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2018-07-02; bh=sAO1Ecf1GQRWJWCXxLPVrvSWhqwMK08Ka3qMtMGlL5U=; b=SemlZ3ZzyqWXgNISwi7zubRuwGc7vjN+oM6aTRLxyF1fcYuo6LJ7R269AAJVOYxNY7vx LeFNbiGYwNSN0V0njKBurs6YJclTsupzLEnz04Cy5xr1DJg26FymXjVIaelHegvM3gkO DboZ/Zp9Wzxsr51m900pJCFp/8gQjMxt/CZ2YoCg3OIeXiCQtaByUhe441Ac88/RtAGS d7x7vzJURRremHFb/vnZMRhoc8DiYLZQFUt9JyV6vIsVTOvmSCOqCjPnIlgeCNmgHeUc mYZhoA37HetyyvWgBy0S/q37pSd4z69ZchXixvv5E/2fWuok49oleynbxnw8LWBWY7gV mQ== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp2130.oracle.com with ESMTP id 2p3ftfa8y8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 06 Dec 2018 06:04:48 +0000 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id wB664ki6018055 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 6 Dec 2018 06:04:46 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id wB664hHJ006278; Thu, 6 Dec 2018 06:04:43 GMT Received: from [10.39.220.54] (/10.39.220.54) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 05 Dec 2018 22:04:43 -0800 Subject: Re: [PATCH] /proc/kpagecount: return 0 for special pages that are never mapped To: Matthew Wilcox , akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, adobriyan@gmail.com, vbabka@suse.cz, sfr@canb.auug.org.au, kirill.shutemov@linux.intel.com, rppt@linux.vnet.ibm.com, mhocko@suse.com, alexander.h.duyck@linux.intel.com, hannes@cmpxchg.org, miles.chen@mediatek.com, n-horiguchi@ah.jp.nec.com References: <1543963526-27917-1-git-send-email-anthony.yznaga@oracle.com> <20181205004836.GU10377@bombadil.infradead.org> <20181205012534.GW10377@bombadil.infradead.org> <540f7690-5fcd-04d6-edb3-a44ebd09e70c@oracle.com> <20181205194409.GB11646@bombadil.infradead.org> <20181206042631.GA24603@bombadil.infradead.org> From: Anthony Yznaga Organization: Oracle Corporation Message-ID: <2f3606d3-ab1f-1d3e-4514-28db69a47eb2@oracle.com> Date: Wed, 5 Dec 2018 22:07:37 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20181206042631.GA24603@bombadil.infradead.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9098 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1812060055 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/05/2018 08:26 PM, Matthew Wilcox wrote: > On Wed, Dec 05, 2018 at 04:44:15PM -0800, Anthony Yznaga wrote: >> On 12/05/2018 11:44 AM, Matthew Wilcox wrote: >>> Nobody seems terribly interested in mapcount overflows. I got no response >>> to https://lkml.org/lkml/2018/3/2/991 >> Okay.  Thanks for the background. >> >> How about this, then: > Acked-by: Matthew Wilcox Thanks for all of the feedback, Matthew. Andrew, Would you like me to submit a revised patch?  An -mm tree diff? Thanks, Anthony