On Thu, Aug 13, 2015 at 12:32 PM, Wilcox, Matthew R
<[email protected]> wrote:
> I liked the patch you were pushing to request the *page* containing the 
> requested bytes instead of the *block* containing the requested bytes.
>
> For the misaligned partition problem, I was thinking we should change the 
> direct_access API to return a phys_addr_t instead of a pfn.  That way we can 
> return something that isn't actually page aligned, and DAX can take care of 
> making sure it doesn't overshoot the end.


If you go that route please make it __pfn_t + offset rather than
phys_addr_t so we can communicate the PFN_DEV flag among others.
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