[PATCH 4/4] utrace_do_stop: s/STOPPED/TRACED/ to protect against SIGCONT

[Roland McGrath]

> utrace_do_stop() sets utrace->stopped but leaves the tracee in TASK_STOPPED
> state. This means SIGCONT can wake up the tracee and fool the tracer.

IMHO this one belongs before 2/4 and 3/4 and all the comments changed to
reflect that SIGKILL is the only case.  But the incremental order really
doesn't matter for the utrace part, we will just merge these all and
eventually generate fresh utrace patches from scratch for upstream
submission, not incremental ones.


Thanks,
Roland