Sleeping in Work_queue threads

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Hi,

I understand that there is a default worker thread ("event") to which
most of the drivers submit work (for bottom half processing).

Now since this thread is catering to all of the drivers; if a driver's
code sleeps, then aren't the rest of the drivers penalised?

I mean the rest of the drivers want to do their work but the thread is
now sleeping since one of the driver has issued a sleeping call?

Wouldn't a seperate worker thread for each driver be a better design?

Thanks & Sincere Regards,

Rajat Jain
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