[openib-general] Re: [PATCH] rcu for event speedup

[Roland Dreier]

    Roland> you're not really using anything from rcupdate.h except
    Roland> synchronize_kernel(),

    Michael> Usefulness of the patch aside (I already agreed synch
    Michael> interrupts is better here), if you dont do asynchronous
    Michael> tricks, this is all there *is* to rcu, in my humble
    Michael> opinion.

I think the core of RCU is really the call_rcu() functionality -- most
normal uses of RCU don't even have to see synchronize_kernel().

 - R.