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-rw-r--r--kernel/signal.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 39d122753bac..ef8156a6aad5 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -255,6 +255,16 @@ flush_signal_handlers(struct task_struct *t, int force_default)
255 } 255 }
256} 256}
257 257
258int unhandled_signal(struct task_struct *tsk, int sig)
259{
260 if (is_init(tsk))
261 return 1;
262 if (tsk->ptrace & PT_PTRACED)
263 return 0;
264 return (tsk->sighand->action[sig-1].sa.sa_handler == SIG_IGN) ||
265 (tsk->sighand->action[sig-1].sa.sa_handler == SIG_DFL);
266}
267
258 268
259/* Notify the system that a driver wants to block all signals for this 269/* Notify the system that a driver wants to block all signals for this
260 * process, and wants to be notified if any signals at all were to be 270 * process, and wants to be notified if any signals at all were to be