linux-kernel - Re: [PATCH 2/3] IB/core: disable memory registration of fileystem-dax vmas

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Message-ID: <20171110090119.GB4895@lst.de>
Date:   Fri, 10 Nov 2017 10:01:19 +0100
From:   Christoph Hellwig <hch@....de>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     akpm@...ux-foundation.org, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jeff Moyer <jmoyer@...hat.com>,
        stable@...r.kernel.org, Christoph Hellwig <hch@....de>,
        Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
        linux-mm@...ck.org, Doug Ledford <dledford@...hat.com>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Sean Hefty <sean.hefty@...el.com>,
        Hal Rosenstock <hal.rosenstock@...il.com>
Subject: Re: [PATCH 2/3] IB/core: disable memory registration of
        fileystem-dax vmas

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@....de>