Re: mm: deadlock between get_online_cpus/pcpu_alloc

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On Wed 08-02-17 13:02:07, Thomas Gleixner wrote:
> On Wed, 8 Feb 2017, Michal Hocko wrote:
[...]
> > [1] http://lkml.kernel.org/r/20170207201950.20482-1-mhocko@xxxxxxxxxx
> 
> Well, yes. It's simple, but from an RT point of view I really don't like
> it as we have to fix it up again.

I thought that preempt_disable would turn into migrate_disable or
something like that which shouldn't cause too much trouble. Or am I
missing something? Which part of the patch is so RT unfriendly?
-- 
Michal Hocko
SUSE Labs

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