linux-next: add utrace tree

[Benjamin Herrenschmidt]

On Mon, 2010-01-25 at 08:52 -0800, Linus Torvalds wrote:
> 
> That said, I also suspect that people should still look seriously at 
> simply just improving ptrace. For example, I suspect that the biggest 
> problem with ptrace is really just the signalling, and that creating a
> new 
> extension for JUST THAT, and then having a model where you can choose
> - at 
> PTRACE_ATTACH time - how to wait for events would be a good thing.

like returning a fd to poll() on ? :-)

Cheers,
Ben.