Commit f776d12d authored Dec 06, 2007 by Matthew Wilcox Committed by Matthew Wilcox Dec 06, 2007

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>

parent f021a3c2

include/linux/sched.h

+8 −1

Original line number	Diff line number	Diff line
		@@ -1873,6 +1873,13 @@ 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));

kernel/signal.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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.
		*/