From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Howells <dhowells@redhat.com>,
Trond.Myklebust@netapp.com, linux-nfs@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] NFS: Fix RCU warnings in nfs_inode_return_delegation_noreclaim() [ver #2]
Date: Tue, 30 Mar 2010 10:25:42 -0700 [thread overview]
Message-ID: <20100330172542.GI2513@linux.vnet.ibm.com> (raw)
In-Reply-To: <1269968671.10116.17.camel@edumazet-laptop>
On Tue, Mar 30, 2010 at 07:04:31PM +0200, Eric Dumazet wrote:
> 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@linux.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()
I do like rcu_dereference_protected() -- a bit longer than
rcu_dereference_locked(), but covers the initialization and cleanup
accesses that might be protected by privatization rather than by locking.
Other thoughts?
Thanx, Paul
next prev parent reply other threads:[~2010-03-30 17:25 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-18 13:33 [PATCH] NFS: Fix RCU warnings in nfs_inode_return_delegation_noreclaim() [ver #2] David Howells
2010-03-19 2:25 ` Paul E. McKenney
2010-03-29 19:02 ` David Howells
2010-03-29 19:21 ` Paul E. McKenney
2010-03-29 20:15 ` David Howells
2010-03-29 20:26 ` Eric Dumazet
2010-03-29 21:05 ` Paul E. McKenney
2010-03-29 22:22 ` David Howells
2010-03-29 22:36 ` Paul E. McKenney
2010-03-29 22:59 ` David Howells
2010-03-29 23:26 ` Paul E. McKenney
2010-03-30 15:40 ` Paul E. McKenney
2010-03-30 16:39 ` David Howells
2010-03-30 16:49 ` Paul E. McKenney
2010-03-30 17:04 ` Eric Dumazet
2010-03-30 17:25 ` Paul E. McKenney [this message]
2010-03-30 23:51 ` David Howells
2010-03-31 0:08 ` Paul E. McKenney
2010-03-31 14:04 ` David Howells
2010-03-31 15:16 ` Paul E. McKenney
2010-03-31 17:37 ` David Howells
2010-03-31 18:30 ` Paul E. McKenney
2010-03-31 18:32 ` Eric Dumazet
2010-03-31 22:53 ` David Howells
2010-04-01 1:29 ` Paul E. McKenney
2010-04-01 11:45 ` David Howells
2010-04-01 14:39 ` Paul E. McKenney
2010-04-01 14:46 ` David Howells
2010-04-05 17:57 ` Paul E. McKenney
2010-04-06 9:30 ` David Howells
2010-04-06 16:14 ` David Howells
2010-04-06 17:29 ` Paul E. McKenney
2010-04-06 19:34 ` David Howells
2010-04-07 0:02 ` Paul E. McKenney
2010-04-07 13:22 ` David Howells
2010-04-07 15:57 ` Paul E. McKenney
2010-04-07 16:35 ` RCU condition checks David Howells
2010-04-07 17:10 ` Paul E. McKenney
2010-04-11 22:57 ` Trond Myklebust
2010-04-12 16:47 ` Paul E. McKenney
2010-03-30 16:37 ` [PATCH] NFS: Fix RCU warnings in nfs_inode_return_delegation_noreclaim() [ver #2] David Howells
2010-03-30 17:01 ` Paul E. McKenney
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