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

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Subject: Re: [PATCH 2/3] IB/core: disable memory registration of fileystem-dax vmas
From: Christoph Hellwig <hch@xxxxxx>
Date: Fri, 10 Nov 2017 10:01:19 +0100
Cc: akpm@xxxxxxxxxxxxxxxxxxxx, linux-rdma@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Jeff Moyer <jmoyer@xxxxxxxxxx>, stable@xxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxx>, Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>, linux-mm@xxxxxxxxx, Doug Ledford <dledford@xxxxxxxxxx>, Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>, Sean Hefty <sean.hefty@xxxxxxxxx>, Hal Rosenstock <hal.rosenstock@xxxxxxxxx>
In-reply-to: <151001624138.16354.16836728315400060928.stgit@dwillia2-desk3.amr.corp.intel.com>
User-agent: Mutt/1.5.17 (2007-11-01)

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@xxxxxx>

References:
- [PATCH 0/3] introduce get_user_pages_longterm()
  - From: Dan Williams
- [PATCH 2/3] IB/core: disable memory registration of fileystem-dax vmas
  - From: Dan Williams

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