[PATCH 11] ptrace_detach: kill the unconditional wakeup

[Roland McGrath]

> I do not know what to do with ptrace_detach()->wake_up_process().

It and ptrace_resume()->wake_up_process() are both clearly wrong in
general.  I think all we really need to worry about is making sure that the
ptrace-tests suite has tests that express all the assumptions and
requirements of existing applications (i.e. old gdb versions).  If those
are inherently contradictory then we can work out the right compromises and
get the suite to test "as compatible as we want it" manifest ptrace
behavior.  Then as long as we don't regress there, our kernel changes are OK.

I think the mayhem of poor bookkeeping might make it too much hassle to try
to fix the existing upstream code to use the proper conditional wake-ups.
It's not worth putting time into it if that's so.


Thanks,
Roland