[RFC] Design + prototype: Multiple handler sets per probe address

[Ananth N Mavinakayanahalli]

Hi,

Here is a design to support "Mulitple handler sets per address". I have 
also put in the i386 implementation based on this design.

Some notes:

- The interfaces to register, unregister, define handlers all remain
the same.
- A kprobe and jprobe cannot co-exist at the same location. (Ideas are 
welcome on how to support this).

I have minimally tested the patch and it works(tm).

Please let me know your thoughts on the design. I'd also appreciate if 
you could test the patch (diffed against 2.6.12-rc1-mm3) and provide 
feedback.


Thanks,
Ananth

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