linux-kernel - Re: [PATCH] [NFS]: Lock daemon start/stop rework.

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Message-ID: <20080206041318.GA6589@infradead.org>
Date:	Wed, 6 Feb 2008 04:13:18 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	"Denis V. Lunev" <den@...ru>
Cc:	Christoph Hellwig <hch@...radead.org>,
	"Denis V. Lunev" <den@...nvz.org>, trond.myklebust@....uio.no,
	linux-kernel@...r.kernel.org, xemul@...nvz.org, devel@...nvz.org
Subject: Re: [PATCH] [NFS]: Lock daemon start/stop rework.

On Thu, Jan 31, 2008 at 10:48:32AM +0300, Denis V. Lunev wrote:
> Christoph Hellwig wrote:
> > On Wed, Jan 30, 2008 at 02:41:34PM +0300, Denis V. Lunev wrote:
> >> The pid of the locking daemon can be substituted with a task struct
> >> without a problem. Namely, the value if filled in the context of the lockd
> >> thread and used in lockd_up/lockd_down.
> >>
> >> It is possible to save task struct instead and use it to kill the process.
> >> The safety of this operation is guaranteed by the RCU, i.e. task can't
> >> disappear without passing a quiscent state.
> > 
> > We have a patch series pending on the nfs list that does this plus a lot
> > more in the area.
> > 
> > 
> where can I have to look them? :)

The lastest version was just posted on the linux-nfs list:
http://marc.info/?l=linux-nfs&m=120224048613393&w=2
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