Re: [RFC] nfnetlink_queue not scalable

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Eric Dumazet <eric.dumazet@xxxxxxxxx> wrote:
> Number one offender is the nfnl_lock mutex hold each time we give a
> verdict.

Yes, the nfnl mutex is fairly annoying for nfqueue.

Unfortunately it is not possible to just remove it
completely since it also protects against module removal.

But I guess even having to grab a refcount would be
a huge win as opposed to holding on to the nfnl mutex...

We'd also need to audit all ->call implementations; most
of them assume the nfnl_mutex is being hold.

> Time to add RCU ;)

Thanks for volunteering ;-)
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