From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Hubbard Subject: Re: [PATCH 1/1] infiniband/mm: convert put_page() to put_user_page*() Date: Thu, 23 May 2019 15:54:08 -0700 Message-ID: <6a18af65-7071-2531-d767-42ba74ad82c4@nvidia.com> References: <20190523072537.31940-1-jhubbard@nvidia.com> <20190523072537.31940-2-jhubbard@nvidia.com> <20190523172852.GA27175@iweiny-DESK2.sc.intel.com> <20190523173222.GH12145@mellanox.com> <20190523190423.GA19578@iweiny-DESK2.sc.intel.com> <0bd9859f-8eb0-9148-6209-08ae42665626@nvidia.com> <20190523223701.GA15048@iweiny-DESK2.sc.intel.com> <050f56d0-1dda-036e-e508-3a7255ac7b59@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <050f56d0-1dda-036e-e508-3a7255ac7b59@nvidia.com> Content-Language: en-US-large Sender: linux-kernel-owner@vger.kernel.org To: Ira Weiny Cc: Jason Gunthorpe , Andrew Morton , "linux-mm@kvack.org" , LKML , "linux-rdma@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , Doug Ledford , Mike Marciniszyn , Dennis Dalessandro , Christian Benvenuti , Jan Kara List-Id: linux-rdma@vger.kernel.org On 5/23/19 3:50 PM, John Hubbard wrote: > [...] > I was thinking of it as a temporary measure, only up until, but not including the > point where put_user_pages() becomes active. That is, the point when put_user_pages > starts decrementing GUP_PIN_COUNTING_BIAS, instead of just forwarding to put_page(). > > (For other readers, that's this patch: > > "mm/gup: debug tracking of get_user_pages() references" > > ...in https://github.com/johnhubbard/linux/tree/gup_dma_core ) > Arggh, correction, I meant this patch: "mm/gup: track gup-pinned pages" ...sorry for any confusion there. thanks, -- John Hubbard NVIDIA