diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-03 08:44:44 -0500 |
|---|---|---|
| committer | Clark Williams <williams@redhat.com> | 2011-12-28 16:25:21 -0600 |
| commit | 8d3a2d2ec088ef097052763a9b41e2e8b26163d6 (patch) | |
| tree | 1bb611c645c66c2dcf965f227f2d01c60c2a064a | |
| parent | 5bdfc1992a8c55c57945695315b8f13107956c16 (diff) | |
signals: Do not wakeup self
Signals which are delivered by current to current can do without
waking up current :)
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | kernel/signal.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index d197b3be9270..fffa57f58b70 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 |