Add fatal_signal_pending
Like signal_pending, but it's only true for signals which are fatal to
this process
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 70d87f2..95395c1 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1872,7 +1872,14 @@
{
return unlikely(test_tsk_thread_flag(p,TIF_SIGPENDING));
}
-
+
+extern int FASTCALL(__fatal_signal_pending(struct task_struct *p));
+
+static inline int fatal_signal_pending(struct task_struct *p)
+{
+ return signal_pending(p) && __fatal_signal_pending(p);
+}
+
static inline int need_resched(void)
{
return unlikely(test_thread_flag(TIF_NEED_RESCHED));
diff --git a/kernel/signal.c b/kernel/signal.c
index fd4797f..657aa16 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -994,6 +994,11 @@
}
}
+int fastcall __fatal_signal_pending(struct task_struct *tsk)
+{
+ return sigismember(&tsk->pending.signal, SIGKILL);
+}
+
/*
* Must be called under rcu_read_lock() or with tasklist_lock read-held.
*/