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Qeustion1:
Why can this definition represent the atomic operation?
In my opinion,in_atomic is defined like this:
#define in_atomic ((preempt_count() &~PREEMPT_ACTIVE) ||kernel_locked()
Question2:
What's meaning of task_struct::lock_depth?
Qeustion3:
Additionally,can current task release CPU when lock_depth>=0?
these are questions about programming the linux kernel, and have no relation to Local Linux user meetings or other social events. please pick a more suitable forum to post in next time. thanks
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