On Thu, 4 Nov 2010 10:09:53 +0000, Chris Wilson chris@chris-wilson.co.uk wrote:
/* Release reference and decrement refcount. */ idr_remove(&filp->object_idr, handle); spin_unlock(&filp->table_lock);
- synchronize_rcu();
This is an absolute performance killer. Looks like we might have to endure call_rcu if we want to proceed down this path. -Chris