---

yaml
---
r: 106221
b: refs/heads/master
c: b787f7b
h: refs/heads/master
i:
  106219: 4678044
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2b2a1ff64afbadac842bbc58c5166962cf4f7664
+refs/heads/master: b787f7ba677840da16a2228c16571ce8a1fcb799

trunk/include/linux/tracehook.h

@@ -422,6 +422,20 @@ static inline int tracehook_consider_fatal_signal(struct task_struct *task,
 	return (task_ptrace(task) & PT_PTRACED) != 0;
 }
 
+/**
+ * tracehook_force_sigpending - let tracing force signal_pending(current) on
+ *
+ * Called when recomputing our signal_pending() flag.  Return nonzero
+ * to force the signal_pending() flag on, so that tracehook_get_signal()
+ * will be called before the next return to user mode.
+ *
+ * Called with @current->sighand->siglock held.
+ */
+static inline int tracehook_force_sigpending(void)
+{
+	return 0;
+}
+
 /**
  * tracehook_get_signal - deliver synthetic signal to traced task
  * @task:		@current

trunk/kernel/signal.c

@@ -134,7 +134,9 @@ void recalc_sigpending_and_wake(struct task_struct *t)
 
 void recalc_sigpending(void)
 {
-	if (!recalc_sigpending_tsk(current) && !freezing(current))
+	if (unlikely(tracehook_force_sigpending()))
+		set_thread_flag(TIF_SIGPENDING);
+	else if (!recalc_sigpending_tsk(current) && !freezing(current))
 		clear_thread_flag(TIF_SIGPENDING);
 
 }