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-rw-r--r--include/linux/sched.h13
-rw-r--r--kernel/sched.c6
2 files changed, 15 insertions, 4 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ae0be3c62375..c5d3f847ca8d 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2026,6 +2026,19 @@ static inline int fatal_signal_pending(struct task_struct *p)
2026 return signal_pending(p) && __fatal_signal_pending(p); 2026 return signal_pending(p) && __fatal_signal_pending(p);
2027} 2027}
2028 2028
2029static inline int signal_pending_state(long state, struct task_struct *p)
2030{
2031 if (!(state & (TASK_INTERRUPTIBLE | TASK_WAKEKILL)))
2032 return 0;
2033 if (!signal_pending(p))
2034 return 0;
2035
2036 if (state & (__TASK_STOPPED | __TASK_TRACED))
2037 return 0;
2038
2039 return (state & TASK_INTERRUPTIBLE) || __fatal_signal_pending(p);
2040}
2041
2029static inline int need_resched(void) 2042static inline int need_resched(void)
2030{ 2043{
2031 return unlikely(test_thread_flag(TIF_NEED_RESCHED)); 2044 return unlikely(test_thread_flag(TIF_NEED_RESCHED));
diff --git a/kernel/sched.c b/kernel/sched.c
index bfb8ad8ed171..2c65bf29d133 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4159,12 +4159,10 @@ need_resched_nonpreemptible:
4159 clear_tsk_need_resched(prev); 4159 clear_tsk_need_resched(prev);
4160 4160
4161 if (prev->state && !(preempt_count() & PREEMPT_ACTIVE)) { 4161 if (prev->state && !(preempt_count() & PREEMPT_ACTIVE)) {
4162 if (unlikely((prev->state & TASK_INTERRUPTIBLE) && 4162 if (unlikely(signal_pending_state(prev->state, prev)))
4163 signal_pending(prev))) {
4164 prev->state = TASK_RUNNING; 4163 prev->state = TASK_RUNNING;
4165 } else { 4164 else
4166 deactivate_task(rq, prev, 1); 4165 deactivate_task(rq, prev, 1);
4167 }
4168 switch_count = &prev->nvcsw; 4166 switch_count = &prev->nvcsw;
4169 } 4167 }
4170 4168