linux-kernel - Re: [PATCH] NLM: Add lockd reference counting and clean up lockd startup and shutdown

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Message-ID: <20071208091754.47ccc377@tleilax.poochiereds.net>
Date:	Sat, 8 Dec 2007 09:17:54 -0500
From:	Jeff Layton <jlayton@...hat.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	linux-nfs@...r.kernel.org, nfsv4@...ux-nfs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] NLM: Add lockd reference counting and clean up lockd
 startup and shutdown

On Sat, 8 Dec 2007 14:07:47 +0000
Christoph Hellwig <hch@...radead.org> wrote:

> > +	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.
> 

Currently sending a SIGKILL to lockd tells it to drop all of its locks
without exiting. If we change lockd to use kthreads, will we have to
change that to use a different mechanism?

-- 
Jeff Layton <jlayton@...hat.com>
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