Re: [Xen-devel] [PATCH] xen: credit2: don't let b_avgload go negative.

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Fri, Jul 22, 2016 at 01:34:27PM +0100, George Dunlap wrote:
> On 22/07/16 13:04, Dario Faggioli wrote:
> > The ASSERT() made effective by b5b5876619bd8ec2e
> > ("xen: credit2: fix two s_time_t handling issues
> > in load balancing") triggers for b_avgload (spotted
> > by OSSTest).
> > 
> > b_avgload is where we store the prediction of how
> > the load of a runqueue will look like in the medium
> > to long term, because of a vcpu being added to or
> > removed from there.
> > 
> > On vcpu removal, saturate down b_avgload to zero,
> > as it makes very few sense to predict that the
> > load of a runqueue will at some point become negative!
> > 
> > Signed-off-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
> 
> Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>
> 
> Wei, do you want to apply it?
> 

I will apply it with your ack.

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