[sheepdog] quesiton about function worker_routine() in lib/work.c

[Bingpeng Zhu]

Hi, all
   I am reading sheepdog's source code. I have a question of the code in function worker_routine() in  lib/work.c. 
It calls sd_mutex_lock(&wi->startup_lock)  in the beginning , and calls  sd_mutex_unlock(&wi->startup_lock) ‍
immediately after the lock. It seems that the code want to block the new threads until all the new threads are created.
I don't understand the purpose for doing this.  Can anybody answer my question?


Thanks
Bingpeng
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