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Date: Fri, 10 Nov 2017 10:01:19 +0100
From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>
Cc: akpm@linux-foundation.org, linux-rdma@vger.kernel.org,
        linux-kernel@vger.kernel.org, Jeff Moyer <jmoyer@redhat.com>,
        stable@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
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        Doug Ledford <dledford@redhat.com>,
        Ross Zwisler <ross.zwisler@linux.intel.com>,
        Sean Hefty <sean.hefty@intel.com>,
        Hal Rosenstock <hal.rosenstock@gmail.com>
Subject: Re: [PATCH 2/3] IB/core: disable memory registration of
        fileystem-dax vmas
Message-ID: <20171110090119.GB4895@lst.de>
References: <151001623063.16354.14661493921524115663.stgit@dwillia2-desk3.amr.corp.intel.com> <151001624138.16354.16836728315400060928.stgit@dwillia2-desk3.amr.corp.intel.com>
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On Mon, Nov 06, 2017 at 04:57:21PM -0800, Dan Williams wrote:
> Until there is a solution to the dma-to-dax vs truncate problem it is
> not safe to allow RDMA to create long standing memory registrations
> against filesytem-dax vmas.

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>