Re: [PATCH 7/9] rhashtable: Per bucket locks & deferred expansion/shrinking

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On Mon, Jan 19, 2015 at 01:01:21AM -0800, Paul E. McKenney wrote:
>
> One unconventional way of handling this is to associate the scan with
> a one-to-one resize operation.  This can be implemented to have the
> effect of taking a snapshot of the table.

The problem is that in general (not for netfilter, but certainly
other rhashtable users such as netlink) dumps/walks can be started
by ordinary users and I don't think we can afford creating a
snapshot for each one, or can we?

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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