diff options
-rw-r--r-- | include/linux/sched.h | 13 | ||||
-rw-r--r-- | kernel/sched.c | 6 |
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 | ||
2029 | static 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 | |||
2029 | static inline int need_resched(void) | 2042 | static 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 | ||