Re: [PATCH v9 10/15] x86/sgx: Add EPC reclamation in cgroup try_charge()

[Huang, Kai]

> > 
> Right. When code reaches to here, we already passed reclaim per cgroup.  

Yes if try_charge() failed we must do pre-cgroup reclaim.

> The cgroup may not at or reach limit but system has run out of physical  
> EPC.
> 

But after try_charge() we can still choose to reclaim from the current group,
but not necessarily have to be global, right?  I am not sure whether I am
missing something, but could you elaborate why we should choose to reclaim from
the global?