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SubjectRe: cpumask: fix compat getaffinity
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At least for parsing, we need to allocate and parse NR_CPUS until
all places like arch/powerpc/platforms/pseries/xics.c that compare a
user-supplied mask to CPUMASK_ALL are eliminated.


> Would it make sense to use my initial patch for -stable, which reverts
> the ABI back to before the change that caused the problem, but apply
> the correct fix (changing the ABI throughout) for future releases?

This would definitly be the conservative fix.

milton


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