> On Mon, Nov 02, 2015 at 12:13:25PM -0500, Mike Marciniszyn wrote: > > The current implementation gets a spin_lock, and at any scale with qib > > and hfi1 post send, the lock contention grows exponentially with the > > number of QPs. > > > > idr_find() is RCU compatibile, so read doesn't need the lock. > > > > Change to use rcu_read_lock() and rcu_read_unlock() in > > __idr_get_uobj(). > > > > kfree_rcu() is used to insure a grace period between the idr removal > > and actual free. > > Looks OK to me. > > Reviewed-By: Jason Gunthorpe <jguntho...@obsidianresearch.com>
Doug, What is the status of this patch? I don't see it any of the public repos. Mike -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
