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-rw-r--r--kernel/sched/core.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 7f12624a393c..af7a8c84b797 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3082,11 +3082,13 @@ EXPORT_SYMBOL(preempt_schedule);
3082asmlinkage void __sched preempt_schedule_irq(void) 3082asmlinkage void __sched preempt_schedule_irq(void)
3083{ 3083{
3084 struct thread_info *ti = current_thread_info(); 3084 struct thread_info *ti = current_thread_info();
3085 enum ctx_state prev_state;
3085 3086
3086 /* Catch callers which need to be fixed */ 3087 /* Catch callers which need to be fixed */
3087 BUG_ON(ti->preempt_count || !irqs_disabled()); 3088 BUG_ON(ti->preempt_count || !irqs_disabled());
3088 3089
3089 user_exit(); 3090 prev_state = exception_enter();
3091
3090 do { 3092 do {
3091 add_preempt_count(PREEMPT_ACTIVE); 3093 add_preempt_count(PREEMPT_ACTIVE);
3092 local_irq_enable(); 3094 local_irq_enable();
@@ -3100,6 +3102,8 @@ asmlinkage void __sched preempt_schedule_irq(void)
3100 */ 3102 */
3101 barrier(); 3103 barrier();
3102 } while (need_resched()); 3104 } while (need_resched());
3105
3106 exception_exit(prev_state);
3103} 3107}
3104 3108
3105#endif /* CONFIG_PREEMPT */ 3109#endif /* CONFIG_PREEMPT */