On 8/14/19 4:50 PM, Ira Weiny wrote:
On Tue, Aug 13, 2019 at 05:56:31PM -0700, John Hubbard wrote:
On 8/13/19 5:51 PM, John Hubbard wrote:
On 8/13/19 2:08 PM, Ira Weiny wrote:
On Mon, Aug 12, 2019 at 05:07:32PM -0700, John Hubbard wrote:
On 8/12/19 4:49 PM, Ira Weiny wrote:
On Sun, Aug 11, 2019 at 06:50:44PM -0700, john.hubb...@gmail.com wrote:
From: John Hubbard <jhubb...@nvidia.com>
...
Finally, I struggle with converting everyone to a new call.  It is more
overhead to use vaddr_pin in the call above because now the GUP code is going
to associate a file pin object with that file when in ODP we don't need that
because the pages can move around.

What if the pages in ODP are file-backed?


oops, strike that, you're right: in that case, even the file system case is 
covered.
Don't mind me. :)

Ok so are we agreed we will drop the patch to the ODP code?  I'm going to keep
the FOLL_PIN flag and addition in the vaddr_pin_pages.


Yes. I hope I'm not overlooking anything, but it all seems to make sense to
let ODP just rely on the MMU notifiers.

thanks,
--
John Hubbard
NVIDIA

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