From 9d3112c89fb88183079205401c8d21483f0823b7 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 3 Jul 2009 08:44:44 -0500 Subject: signals: Do not wakeup self Signals which are delivered by current to current can do without waking up current :) Signed-off-by: Thomas Gleixner --- kernel/signal.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'kernel') diff --git a/kernel/signal.c b/kernel/signal.c index d8b0b21e71e4..8ad4755277fe 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -682,6 +682,9 @@ void signal_wake_up(struct task_struct *t, int resume) set_tsk_thread_flag(t, TIF_SIGPENDING); + if (unlikely(t == current)) + return; + /* * For SIGKILL, we want to wake it up in the stopped/traced/killable * case. We don't check t->state here because there is a race with it -- cgit v1.2.3