Re: [ofa-general] Re: [GIT PULL] please pull ummunotify

Peter Zijlstra
2009-09-17T15:22:24Z

On Thu, 2009-09-17 at 08:03 -0700, Roland Dreier wrote:
> > Hmm, or are you saying you can only get 1 event per registered range and
> > allocate the thing on registration? That'd need some registration limit
> > to avoid DoS scenarios.
>
> Yes, that's what I do. You're right, I should add a limit... although
> their are lots of ways for userspace to consume arbitrary amounts of
> kernel resources already.

I'd be good to work at reducing that number, not adding to it ;-)

But yeah, I currently don't see a very nice match to perf counters.