From mboxrd@z Thu Jan  1 00:00:00 1970
From: Trond Myklebust <trond.myklebust@fys.uio.no>
Subject: Re: Implementation of delegation
Date: Mon, 12 Jul 2010 17:48:12 -0400
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Cc: linux-nfs@vger.kernel.org
To: Yudong Gao <stgyd@umich.edu>
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On Mon, 2010-07-12 at 14:37 -0700, Yudong Gao wrote:
> Hi,
> 
> I am reading the NFS source code of the file open function in kernel
> 2.6.34, but I cannot find any implementation with delegation to allow
> client to open a file locally without contacting the server. We are
> tying to use delegation to do something interesting. So I am wondering
> how much delegation support specified in the NFS 4.1 protocol is
> available in the current Linux implementation?

What's wrong with nfs4_try_open_cached()? It even works with NFSv4.0...

Trond