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[Kernel] Fix the critical issue under smp

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This commit is contained in:
Bernard Xiong 2019-04-04 10:06:28 +08:00
parent b490052579
commit d517389e52
1 changed files with 11 additions and 0 deletions
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11
src/scheduler.c
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@ -792,6 +792,12 @@ void rt_enter_critical(void)
level = rt_hw_local_irq_disable();
current_thread = rt_cpu_self()->current_thread;
if (!current_thread)
{
rt_hw_local_irq_enable(level);
return ;
}
/*
* the maximal number of nest is RT_UINT16_MAX, which is big
* enough and does not check here
@ -842,6 +848,11 @@ void rt_exit_critical(void)
level = rt_hw_local_irq_disable();
current_thread = rt_cpu_self()->current_thread;
if (!current_thread)
{
rt_hw_local_irq_enable(level);
return ;
}
current_thread->scheduler_lock_nest --;