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do not change dead_task->exit_signal

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__ptrace_detach() and do_notify_parent() set task->exit_signal = -1
to mark the task dead. This is no longer needed, nobody checks
exit_signal to detect the EXIT_DEAD task.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Oleg Nesterov 2011-06-22 23:10:11 +02:00
parent e550f14dc6
commit d4f7c511c1
2 changed files with 0 additions and 2 deletions
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1
kernel/ptrace.c
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@ -384,7 +384,6 @@ static bool __ptrace_detach(struct task_struct *tracer, struct task_struct *p)
dead = do_notify_parent(p, p->exit_signal);
else if (ignoring_children(tracer->sighand)) {
__wake_up_parent(p, tracer);
p->exit_signal = -1;
dead = true;
}
}

1
kernel/signal.c
View File

@ -1650,7 +1650,6 @@ bool do_notify_parent(struct task_struct *tsk, int sig)
* it, just use SIG_IGN instead).
*/
autoreap = true;
tsk->exit_signal = -1;
if (psig->action[SIGCHLD-1].sa.sa_handler == SIG_IGN)
sig = 0;
}