Re: [RFC PATCH 1/5] net: implement support for low latency socketpolling

[Andi Kleen]

> Alternative to 2) would be to use a generation id, incremented every
> time a napi used in spin polling enabled driver is dismantled (and freed
> after RCU grace period)
> 
> And store in sockets not only the pointer to napi_struct, but the
> current generation id : If the generation id doesnt match, disable
> the spinpoll until next packet rebuilds the cache again.

This would require rcu_read_lock, aka preempt off, during polling, right?

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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