RCU based kprobes locking patches for test

[Ananth N Mavinakayanahalli]

Hi,

As was requested, here are the details of the patches (followup to the
rwlocking patches posted sometime back) that rid the serialization of
kprobes on smp. This current set uses RCU infrastructure instead of
rwlocks.

All patches (+ the series file) is available under the
patches/kprobes-use-rcu directory. Link under cvsweb is:

http://sources.redhat.com/cgi-bin/cvsweb.cgi/patches/kprobes-use-rcu/?cvsroot=systemtap

Review comments welcome!

Please give it a spin on as many relevant archs as possible. Patches
apply on 2.6.13-rc5-mm1. I intend to post it to lkml after getting 
test results on the relevant archs.

Regards,
Ananth