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Date: Thu, 2 Nov 2017 21:13:56 +0100
From: Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 10/15] IB/core: disable memory registration of
        fileystem-dax vmas
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To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-nvdimm@lists.01.org, Sean Hefty <sean.hefty@intel.com>, linux-xfs@vger.kernel.org, akpm@linux-foundation.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Jeff Moyer <jmoyer@redhat.com>, stable@vger.kernel.org, hch@lst.de, Jason Gunthorpe <jgunthorpe@obsidianresearch.com>, linux-mm@kvack.org, Doug Ledford <dledford@redhat.com>, linux-fsdevel@vger.kernel.org, Ross Zwisler <ross.zwisler@linux.intel.com>, Hal Rosenstock <hal.rosenstock@gmail.com>

Any chance we could add a new get_user_pages_longerm or similar
helper instead of opencoding this in the various callers?