Re: [4.2] commit d59cfc09c32 (sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsem) causes regression for libvirt/kvm

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On Tue, Sep 15, 2015 at 09:24:15PM -0400, Tejun Heo wrote:
> Hello, Paul.
> 
> On Tue, Sep 15, 2015 at 04:38:18PM -0700, Paul E. McKenney wrote:
> > Well, the decision as to what is too big for -stable is owned by the
> > -stable maintainers, not by me.
> 
> Is it tho?  Usually the subsystem maintainer knows the best and has
> most say in it.  I was mostly curious whether you'd think that the
> changes would be too risky.  If not, great.

I do hope that they would listen to what I thought about it, but at
the end of the day, it is the -stable maintainers who pull a given
patch, or don't.

> > I am suggesting trying the options and seeing what works best, then
> > working to convince people as needed.
> 
> Yeah, sure thing.  Let's wait for Christian.

Indeed.  Is there enough benefit to risk jamming this thing into 4.3?
I believe that 4.4 should be a no-brainer.

							Thanx, Paul

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