On Tue, Nov 6, 2012 at 9:31 PM, Thomas Hellstrom <thellstrom@xxxxxxxxxx> 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. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
