Messages in this thread | | | Date | Thu, 28 Nov 2013 16:02:33 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH]: exec: avoid propagating PF_NO_SETAFFINITY into userspace child |
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On Thu, Nov 28, 2013 at 04:00:55PM +0100, Oleg Nesterov wrote: > And btw. Note ____call_usermodehelper()->set_cpus_allowed_ptr(cpu_all_mask). > > Even if we change the affinity of the "khelper" worker threads this > won't restrict the user-space helpers. > > I think this set_cpus_allowed_ptr() should die in any case?
Yes. A while back someone proposed adding a magic cpumask to tweak in order to contain the usermode helpers.
Obviously I thought that was a bad idea.
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