> utrace_tracer_task() can use list_for_each_entry() too. Yes, but ... I'm reminded that this function is its own can of worms. It's called by other threads, without any synchronization, so it cannot safely used utrace->attached unlocked like reporting passes do.
The tracer_task and unsafe_exec hooks are there mainly for ptrace. I've decided to punt these utrace hooks for now. When we get to doing a cleaned-up ptrace on utrace (or some other facility that brings in the need for the unsafe_exec hook), we can figure out how to cleanly and safely support some utrace API feature for that. Thanks, Roland
