From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Hubbard Subject: Re: [PATCH v7 05/24] mm: devmap: refactor 1-based refcounting for ZONE_DEVICE pages Date: Thu, 21 Nov 2019 00:54:53 -0800 Message-ID: References: <20191121071354.456618-1-jhubbard@nvidia.com> <20191121071354.456618-6-jhubbard@nvidia.com> <20191121080555.GC24784@lst.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from hqemgate16.nvidia.com (hqemgate16.nvidia.com [216.228.121.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id AAAE86EBD1 for ; Thu, 21 Nov 2019 08:57:42 +0000 (UTC) In-Reply-To: <20191121080555.GC24784@lst.de> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Christoph Hellwig Cc: Michal Hocko , Jan Kara , kvm@vger.kernel.org, linux-doc@vger.kernel.org, David Airlie , Dave Chinner , dri-devel@lists.freedesktop.org, LKML , linux-mm@kvack.org, Paul Mackerras , linux-kselftest@vger.kernel.org, Ira Weiny , Jonathan Corbet , linux-rdma@vger.kernel.org, Michael Ellerman , Christoph Hellwig , Jason Gunthorpe , Vlastimil Babka , =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= , linux-media@vger.kernel.org, Shuah Khan , linux-block@vger.kernel.org, =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Al Viro , Dan Williams , Mauro Carvalho Chehab List-Id: dri-devel@lists.freedesktop.org T24gMTEvMjEvMTkgMTI6MDUgQU0sIENocmlzdG9waCBIZWxsd2lnIHdyb3RlOgo+IFNvIHdoaWxl IHRoaXMgbG9va3MgY29ycmVjdCBhbmQgSSBzdGlsbCByZWFsbHkgZG9uJ3Qgc2VlIHRoZSBtYWpv cgo+IGJlbmVmaXQgb2YgdGhlIG5ldyBjb2RlIG9yZ2FuaXphdGlvbiwgZXNwZWNpYWxseSBhcyBp dCBibG9hdHMgYWxsCj4gcHV0X3BhZ2UgY2FsbGVycy4KPiAKPiBJJ2QgbG92ZSB0byBzZWUgY29k ZSBzaXplIGNoYW5nZSBzdGF0cyBmb3IgYW4gYWxseWVzY29uZmlnIG9uIHRoaXMKPiBjb21taXQu Cj4gCgpSaWdodCwgSSdtIHJ1bm5pbmcgdGhhdCBub3csIHdpbGwgcG9zdCB0aGUgcmVzdWx0cy4g KGJ0dywgaWYgdGhlcmUgaXMKYSBzY3JpcHQgYW5kL29yIHN0YW5kYXJkIGZvcm1hdCBJIHNob3Vs ZCB1c2UsIEknbSBhbGwgZWFycy4gSSdsbCBkaWcKdGhyb3VnaCBsd24uLi4pCgoKCnRoYW5rcywK LS0gCkpvaG4gSHViYmFyZApOVklESUEKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJl ZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGlu Zm8vZHJpLWRldmVs 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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 5BE04C432C3 for ; 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Thu, 21 Nov 2019 00:57:43 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Thu, 21 Nov 2019 00:57:42 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Thu, 21 Nov 2019 00:57:42 -0800 Received: from [10.2.169.101] (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 21 Nov 2019 08:57:41 +0000 Subject: Re: [PATCH v7 05/24] mm: devmap: refactor 1-based refcounting for ZONE_DEVICE pages To: Christoph Hellwig References: <20191121071354.456618-1-jhubbard@nvidia.com> <20191121071354.456618-6-jhubbard@nvidia.com> <20191121080555.GC24784@lst.de> From: John Hubbard X-Nvconfidentiality: public Message-ID: Date: Thu, 21 Nov 2019 00:54:53 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <20191121080555.GC24784@lst.de> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL101.nvidia.com (172.20.187.10) To HQMAIL107.nvidia.com (172.20.187.13) Content-Language: en-US X-Mailman-Original-DKIM-Signature: v=1; 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Miller" , Mike Kravetz Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Message-ID: <20191121085453.jQ4PbOy0YFhHUndTRHCP5kWS9udZhjaOm-vLcKNxaDo@z> T24gMTEvMjEvMTkgMTI6MDUgQU0sIENocmlzdG9waCBIZWxsd2lnIHdyb3RlOgo+IFNvIHdoaWxl IHRoaXMgbG9va3MgY29ycmVjdCBhbmQgSSBzdGlsbCByZWFsbHkgZG9uJ3Qgc2VlIHRoZSBtYWpv cgo+IGJlbmVmaXQgb2YgdGhlIG5ldyBjb2RlIG9yZ2FuaXphdGlvbiwgZXNwZWNpYWxseSBhcyBp dCBibG9hdHMgYWxsCj4gcHV0X3BhZ2UgY2FsbGVycy4KPiAKPiBJJ2QgbG92ZSB0byBzZWUgY29k ZSBzaXplIGNoYW5nZSBzdGF0cyBmb3IgYW4gYWxseWVzY29uZmlnIG9uIHRoaXMKPiBjb21taXQu Cj4gCgpSaWdodCwgSSdtIHJ1bm5pbmcgdGhhdCBub3csIHdpbGwgcG9zdCB0aGUgcmVzdWx0cy4g KGJ0dywgaWYgdGhlcmUgaXMKYSBzY3JpcHQgYW5kL29yIHN0YW5kYXJkIGZvcm1hdCBJIHNob3Vs ZCB1c2UsIEknbSBhbGwgZWFycy4gSSdsbCBkaWcKdGhyb3VnaCBsd24uLi4pCgoKCnRoYW5rcywK LS0gCkpvaG4gSHViYmFyZApOVklESUEKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJl ZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGlu Zm8vZHJpLWRldmVs