Cleanup. __group_complete_signal() wakes up ->group_exit_task twice. The second
wakeup's state includes TASK_UNINTERRUPTIBLE, which is not very appropriate.
Change the code to pass the "correct" argument to signal_wake_up() and kill now
unneeded wake_up_process().
Signed-off-by: Oleg Nesterov <[email protected]>
--- t/kernel/signal.c~2_GCS_NOWAKEUP 2007-08-12 19:48:26.000000000 +0400
+++ t/kernel/signal.c 2007-08-17 20:23:59.000000000 +0400
@@ -911,8 +911,7 @@ __group_complete_signal(int sig, struct
do {
sigaddset(&t->pending.signal, SIGKILL);
signal_wake_up(t, 1);
- t = next_thread(t);
- } while (t != p);
+ } while_each_thread(p, t);
return;
}
@@ -930,13 +929,11 @@ __group_complete_signal(int sig, struct
rm_from_queue(SIG_KERNEL_STOP_MASK, &p->signal->shared_pending);
p->signal->group_stop_count = 0;
p->signal->group_exit_task = t;
- t = p;
+ p = t;
do {
p->signal->group_stop_count++;
- signal_wake_up(t, 0);
- t = next_thread(t);
- } while (t != p);
- wake_up_process(p->signal->group_exit_task);
+ signal_wake_up(t, t == p);
+ } while_each_thread(p, t);
return;
}