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SubjectRe: [PATCH RFC 03/10] mm/gup: Pass flags down to __gup_device_huge* calls
On Wed, Jun 05, 2019 at 06:45:36PM -0700, ira.weiny@intel.com wrote:
> From: Ira Weiny <ira.weiny@intel.com>
>
> In order to support checking for a layout lease on a FS DAX inode these
> calls need to know if FOLL_LONGTERM was specified.
>
> Prepare for this with this patch.

The GUP fast argument passing is a mess. That is why I've come up
with this as part of the (not ready) get_user_pages_fast_bvec
implementation:

http://git.infradead.org/users/hch/misc.git/commitdiff/c3d019802dbde5a4cc4160e7ec8ccba479b19f97

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