From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [ofa-general] Re: [GIT PULL] please pull ummunotify Date: Thu, 17 Sep 2009 17:22:24 +0200 Message-ID: <1253200944.14935.29.camel@laptop> References: <1253187028.8439.2.camel@twins> <1253198976.14935.27.camel@laptop> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Roland Dreier Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Paul Mackerras , Anton Blanchard , general-ZwoEplunGu1OwGhvXhtEPSCwEArCW2h5@public.gmane.org, akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, Ingo Molnar List-Id: linux-rdma@vger.kernel.org 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. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html