From: Oleg Nesterov We already depend on fact that all sub-threads have ->exit_signal == -1, no need to set it in zap_other_threads(). Signed-off-by: Oleg Nesterov Signed-off-by: Andrew Morton --- kernel/signal.c | 11 ----------- 1 files changed, 11 deletions(-) diff -puN kernel/signal.c~zap_other_threads-remove-unneeded-exit_signal-change kernel/signal.c --- a/kernel/signal.c~zap_other_threads-remove-unneeded-exit_signal-change +++ a/kernel/signal.c @@ -1032,17 +1032,6 @@ void zap_other_threads(struct task_struc if (t->exit_state) continue; - /* - * We don't want to notify the parent, since we are - * killed as part of a thread group due to another - * thread doing an execve() or similar. So set the - * exit signal to -1 to allow immediate reaping of - * the process. But don't detach the thread group - * leader. - */ - if (t != p->group_leader) - t->exit_signal = -1; - /* SIGKILL will be handled before any pending SIGSTOP */ sigaddset(&t->pending.signal, SIGKILL); signal_wake_up(t, 1); _