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

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Message-ID: <1269968671.10116.17.camel@edumazet-laptop>
Date:	Tue, 30 Mar 2010 19:04:31 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	paulmck@...ux.vnet.ibm.com
Cc:	David Howells <dhowells@...hat.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]

Le mardi 30 mars 2010 à 09:49 -0700, Paul E. McKenney a écrit :
> 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?
> 

Maybe use 'protected' word or something like that, or 'owned', ...

rcu_dereference_protected() or rcu_dereference_owned()



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