On Tue, Nov 6, 2012 at 9:31 PM, Thomas Hellstrom <thellst...@vmware.com> wrote: > The mostly used lookup+get put+potential_destroy path of TTM objects > is converted to use RCU locks. This will substantially decrease the amount > of locked bus cycles during normal operation. > Since we use kfree_rcu to free the objects, no rcu synchronization is needed > at module unload time.
As this is the first use of RCU in a drm driver from what I can see, let me remind that the RCU patent agreement AFAIK only covers GPL works. So non-GPL or other OSes porting this code should take not of this. Dave. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
