From: Matthew Wilcox <matthew@wil.cx>
Date: Thu, 6 Dec 2007 16:15:50 +0000 (-0500)
Subject: Add fatal_signal_pending
X-Git-Tag: v2.6.25-rc1~1125^2~9
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=f776d12dd16da1b0cd55a1240002c1b31f315d5d;p=linux-2.6-omap-h63xx.git

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 70d87f2fd23..95395c143ba 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1872,7 +1872,14 @@ static inline int signal_pending(struct task_struct *p)
 {
 	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 fd4797f3062..657aa16d97c 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -994,6 +994,11 @@ void zap_other_threads(struct task_struct *p)
 	}
 }
 
+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.
  */