Ptrace updates: CLONE_PTRACE should use force_sig_specific [3/5]

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Right now, CLONE_PTRACE uses send_sig(SIGSTOP, p, 1). If you use
CLONE_THREAD | CLONE_PTRACE, though, this SIGSTOP gets broadcast to the
entire thread group. That's not what was intended; we only want the one
new thread to stop. Fixed like so.

# --------------------------------------------
# 03/02/04 drow@nevyn.them.org 1.959
# Use force_sig_specific to send SIGSTOP to newly-created CLONE_PTRACE processes.
# --------------------------------------------

diff -Nru a/kernel/fork.c b/kernel/fork.c
--- a/kernel/fork.c Thu Feb 6 16:57:32 2003
+++ b/kernel/fork.c Thu Feb 6 16:57:32 2003
@@ -1036,7 +1036,7 @@
                 }
 
                 if (p->ptrace & PT_PTRACED)
- send_sig(SIGSTOP, p, 1);
+ force_sig_specific(SIGSTOP, p);
 
                 wake_up_forked_process(p); /* do this last */
                 ++total_forks;

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer
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