Messages in this thread | | | Date | Mon, 29 Mar 2010 15:36:09 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH] NFS: Fix RCU warnings in nfs_inode_return_delegation_noreclaim() [ver #2] |
| |
On Mon, Mar 29, 2010 at 11:22:30PM +0100, David Howells wrote: > Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote: > > > And rcu_dereference_raw() is the same as the old rcu_dereference(). > > Exactly. That's the other half of the issue - that interpolates a redundant > memory barrier.
Only on Alpha. Otherwise only a volatile access.
Thanx, Paul
| |