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SubjectRe: [PATCH 2/3] work_on_cpu: Use our own workqueue.
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On Thursday 05 February 2009 08:18:23 Andrew Morton wrote:
> I expect that the same argument applies to most of the set_cpus_allowed()
> callsites - they're run by root-only code. Sure, root can (with
> careful timing) move root's own thread onto the wrong CPU in the middle
> of microcode loading. In which case root gets to own both pieces.

Sorry, I don't accept this at all. It's completely reasonable for me to write a tool which clears all tasks off a cpu. We wrote an API to do it, now we're going to say don't use it?

Yes, it's a pain to fix. Yes, we should never have been doing it this way in the first place. But let's not blame the users.

Rusty.


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