On Fri, Aug 02, 2024 at 01:01:34PM -0700, Sean Christopherson wrote: > Protect vcpu->pid with a rwlock instead of RCU, so that running a vCPU > with a different task doesn't require a full RCU synchronization, which > can introduce a non-trivial amount of jitter, especially on large systems. > > I've had this mini-series sitting around for ~2 years, pretty much as-is. > I could have sworn past me thought there was a flaw in using a rwlock, and > so I never posted it, but for the life of me I can't think of any issues. > > Extra eyeballs would be much appreciated. Besides the nitpicks: Acked-by: Oliver Upton <oliver.upton@xxxxxxxxx> -- Thanks, Oliver
