Re: [Xen-devel] [PATCH 1/2] Revert "xen: properly account for _PAGE_NUMA during xen pte translations"

[David Vrabel]

On 25/03/14 18:19, Konrad Rzeszutek Wilk wrote:
> 
> With that in mind I was wondering whether it would be possible to revert 
> Mel's 1667918b6483 ("mm: numa: clear numa hinting information on mprotect")
> so there is a bit more time in 3.15 to re-introduce his patch and also a
> proper fix so that Xen guests won't fall flat on their face?

Unfortunately, I think this can only be safely reverted on architectures
with ARCH_WANTS_PROT_NUMA_PROT_NONE (x86) and would cause regressions on
other architectures with only ARCH_SUPPORTS_NUMA_BALANCING (powerpc).

David
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