On Thu, Aug 17, 2017 at 06:08:11PM +0200, Jan Kara wrote:

For synchronous page fault dax_iomap_fault() will need to return PFN
which will then need to inserted into page tables after fsync()
completes. Add necessary parameter to dax_iomap_fault().

Signed-off-by: Jan Kara <jack@suse.cz>

Yep, this seems like a nice, straightforward way of doing things.  I like this
better than the vmf->orig_pte solution from the previous RFC.

Reviewed-by: Ross Zwisler <redacted>