From 18442cf28af81378cf8996d264b368bba47cf846 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 16 Oct 2007 23:27:00 -0700 Subject: [PATCH] __group_complete_signal: eliminate unneeded wakeup of ->group_exit_task 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 Cc: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/signal.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/kernel/signal.c b/kernel/signal.c index b7aa492e16ad..90e2efad33ae 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -909,8 +909,7 @@ __group_complete_signal(int sig, struct task_struct *p) do { sigaddset(&t->pending.signal, SIGKILL); signal_wake_up(t, 1); - t = next_thread(t); - } while (t != p); + } while_each_thread(p, t); return; } @@ -928,13 +927,11 @@ __group_complete_signal(int sig, struct task_struct *p) 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; } -- 2.20.1