> > * Callbacks can be concurrently advanced between the LOAD-ACQUIRE on > > ->nocb_cb_sleep and the call to rcu_segcblist_extract_done_cbs() in > > rcu_do_batch(), making any ordering based on ->nocb_cb_sleep broken. > > If you don't mind, could you elaborate more? Ah, I see you deleted the counterpart memory barrier in the next patch. I was reading the patches in order, so I did not notice. I'll go read that as well. It might make sense to combine this and the next patch, not sure. - Joel
