From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH] NLM: Add lockd reference counting and clean up lockd
	startup and shutdown
Date: Sat, 8 Dec 2007 14:07:47 +0000
Message-ID: <20071208140747.GA11675@infradead.org>
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To: Jeff Layton <jlayton@redhat.com>
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> +	mutex_lock(&nlmsvc_mutex);
> +	while (atomic_read(&nlmsvc_ref) != 0) {

might be better to do the refcounting outside the thread and use the
kthread api, which is something we still need to do for lockd anyway.