Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"

[Roland Dreier]

> See
> <https://lore.kernel.org/lkml/1512686629.18523.217.ca...@codethink.co.uk/T/#u>.

Thanks!  I'm not using SGI UV and I'm not using kexec, so I guess I
sidestepped most of those issues.  Greg, I think we need to unrevert
the cpa->pfn change (otherwise the L1TF fix probably gets pretty
messy) and I guess pull in the other patches that Ben mentions.

 - R.