Hi Jens -

It turns out the 'action mask' isn't quite right: in these usages its
really a category mask. I'm looking into adding real action masks - so
that one can reduce traces to specific actions (in the particular
near-term need it's sleeprq & getrq really - I'm sure there are other
usages as well).

Here's the kernel side patch, next will be the application side patch.