Re: [PATCH 1/2] NFSD: notifiers registration cleanup

[Vasily Averin]

On 21.09.2016 16:20, Jeff Layton wrote:
> Good catch. I'm not very fond of the refcounting this here but it
> should
> serve the purpose and I don't have anything better to suggest. FWIW, I
> think the nfsd_mutex is held during all of these operations so we
> probably don't need atomics for the refcount.

I've copied idea from netfilters,
look at using of masquerade_notifier_refcount

Perhaps someday in future we'll replace all such cases by some common primitive.