From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Howells <dhowells@redhat.com>
Subject: Re: [PATCH] NFS: Fix RCU warnings in nfs_inode_return_delegation_noreclaim() [ver #2]
Date: Thu, 01 Apr 2010 15:46:51 +0100
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Cc: dhowells@redhat.com, Eric Dumazet <eric.dumazet@gmail.com>,
	Trond.Myklebust@netapp.com, linux-nfs@vger.kernel.org,
	linux-kernel@vger.kernel.org
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Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:

> So you have objected to needless memory barriers.  How do you feel
> about possibly needless ACCESS_ONCE() calls?

That would work here since it shouldn't emit any excess instructions.

David