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[216.228.121.65]) by mx.google.com with ESMTPS id q11si13030753ywi.448.2019.02.20.12.22.32 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 20 Feb 2019 12:22:33 -0800 (PST) Received-SPF: pass (google.com: domain of jhubbard@nvidia.com designates 216.228.121.65 as permitted sender) client-ip=216.228.121.65; Authentication-Results: mx.google.com; dkim=pass header.i=@nvidia.com header.s=n1 header.b=A2BulD4L; spf=pass (google.com: domain of jhubbard@nvidia.com designates 216.228.121.65 as permitted sender) smtp.mailfrom=jhubbard@nvidia.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nvidia.com Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Wed, 20 Feb 2019 12:22:37 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 20 Feb 2019 12:22:31 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 20 Feb 2019 12:22:31 -0800 Received: from [10.2.169.124] (10.124.1.5) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 20 Feb 2019 20:22:30 +0000 Subject: Re: [PATCH 4/6] mm/gup: track gup-pinned pages To: Ira Weiny , CC: Andrew Morton , , Al Viro , Christian Benvenuti , Christoph Hellwig , Christopher Lameter , Dan Williams , Dave Chinner , Dennis Dalessandro , Doug Ledford , Jan Kara , Jason Gunthorpe , Jerome Glisse , Matthew Wilcox , Michal Hocko , Mike Rapoport , Mike Marciniszyn , Ralph Campbell , Tom Talpey , LKML , References: <20190204052135.25784-1-jhubbard@nvidia.com> <20190204052135.25784-5-jhubbard@nvidia.com> <20190220192405.GA12114@iweiny-DESK2.sc.intel.com> X-Nvconfidentiality: public From: John Hubbard Message-ID: <2c7f6914-71ab-c3a0-d043-b25e1d55a9ce@nvidia.com> Date: Wed, 20 Feb 2019 12:22:19 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.0 MIME-Version: 1.0 In-Reply-To: <20190220192405.GA12114@iweiny-DESK2.sc.intel.com> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL105.nvidia.com (172.20.187.12) To HQMAIL101.nvidia.com (172.20.187.10) Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1550694157; bh=xaPm9bOl46WttgSnpiat/PG46CKSbX8nCiFiaT9SwHE=; h=X-PGP-Universal:Subject:To:CC:References:X-Nvconfidentiality:From: Message-ID:Date:User-Agent:MIME-Version:In-Reply-To: X-Originating-IP:X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=A2BulD4LCH07dOSBUhThGzWNUfUExCrX+0oDsuP3ymsZCyxIxxPfpkJbxYf5+eg0z V/yOVnEg66OS94CZ/nrMqTwXu9rRqooR+mHf1aclv97tGTs1FAC9SG+Z4m4ghWkGJ6 6ab0eiOUU5O5OH5Mu989C3llz2w3BtQvtW7rj1UsQowRcWcFYcQvDnSOqZQF+Mrbxb OK+1MKgx9135oeKn4nvT7FcIDf5VCCncUPKP9Zikx7Iyaul7JxpBqBDtx8iNUcjnsl qOoNwE3nNIPHS1dN1sEjEu1na9B1iTpQSpra9ZE8xvszPKMarxCVqjghfgRtpBUO98 c133tkaCAR8tA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 2/20/19 11:24 AM, Ira Weiny wrote: > On Sun, Feb 03, 2019 at 09:21:33PM -0800, john.hubbard@gmail.com wrote: >> From: John Hubbard > [snip] >> + * >> + * Locking: the lockless algorithm described in page_cache_gup_pin_speculative() >> + * and page_cache_gup_pin_speculative() provides safe operation for > > Did you mean: > > page_cache_gup_pin_speculative and __ page_cache_get_speculative __? > > Just found this while looking at your branch. > > Sorry, > Ira > Hi Ira, Yes, thanks for catching that. I've changed it in the git repo now, and it will show up when the next spin of this patchset goes out. thanks, -- John Hubbard NVIDIA