linux-kernel - Re: [PATCH] NFS: Fix RCU warnings in nfs_inode_return_delegation

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Message-ID: <20100330164912.GG2513@linux.vnet.ibm.com>
Date:	Tue, 30 Mar 2010 09:49:12 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	David Howells <dhowells@...hat.com>
Cc:	Eric Dumazet <eric.dumazet@...il.com>, Trond.Myklebust@...app.com,
	linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] NFS: Fix RCU warnings in
 nfs_inode_return_delegation_noreclaim() [ver #2]

On Tue, Mar 30, 2010 at 05:39:11PM +0100, David Howells wrote:
> Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote:
> 
> > Scrap this one -- Arnd has it covered, under the much better name
> > of rcu_dereference_const().
> 
> Not convinced of that name either.  That sounds like the RCU dereference of
> constant (R/O) data.

Which it is, as long as the lock is held.

But what name would you suggest?

							Thanx, Paul
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