Re: [PATCH 10/15] IB/core: disable memory registration of fileystem-dax vmas

To: Dan Williams <dan.j.williams@xxxxxxxxx>
Subject: Re: [PATCH 10/15] IB/core: disable memory registration of fileystem-dax vmas
From: Christoph Hellwig <hch@xxxxxx>
Date: Thu, 2 Nov 2017 21:13:56 +0100
Cc: linux-nvdimm@xxxxxxxxxxxx, Sean Hefty <sean.hefty@xxxxxxxxx>, linux-xfs@xxxxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, linux-rdma@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Jeff Moyer <jmoyer@xxxxxxxxxx>, stable@xxxxxxxxxxxxxxx, hch@xxxxxx, Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>, linux-mm@xxxxxxxxx, Doug Ledford <dledford@xxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>, Hal Rosenstock <hal.rosenstock@xxxxxxxxx>
In-reply-to: <150949214929.24061.10464887309708944817.stgit@dwillia2-desk3.amr.corp.intel.com>
User-agent: Mutt/1.5.17 (2007-11-01)

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

Follow-Ups:
- Re: [PATCH 10/15] IB/core: disable memory registration of fileystem-dax vmas
  - From: Dan Williams

References:
- [PATCH 00/15] dax: prep work for fixing dax-dma vs truncate collisions
  - From: Dan Williams
- [PATCH 10/15] IB/core: disable memory registration of fileystem-dax vmas
  - From: Dan Williams