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From: Milton Miller <miltonm@bga.com>
Subject: Re: cpumask: fix compat getaffinity
To: Arnd Bergmann <arnd@arndb.de>,
       KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
       Rusty Russell <rusty@rustcorp.com.au>, Greg KH <greg@kroah.com>
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Date: Wed, 12 May 2010 03:30:45 -0500
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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