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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	Original line	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));		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)		static inline int need_resched(void)
	{		{
	return unlikely(test_thread_flag(TIF_NEED_RESCHED));		return unlikely(test_thread_flag(TIF_NEED_RESCHED));

kernel/signal.c

+5 −0

Original line number	Original line	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.		* Must be called under rcu_read_lock() or with tasklist_lock read-held.
	*/		*/