On Tue, Jul 31, 2018 at 7:41 PM, Eric Dumazet <edumazet@xxxxxxxxxx> wrote: > On Tue, Jul 31, 2018 at 10:36 AM Christopher Lameter <cl@xxxxxxxxx> wrote: > >> >> If there is refcounting going on then why use SLAB_TYPESAFE_BY_RCU? > > To allow fast reuse of objects, without going through call_rcu() and > reducing cache efficiency. > > I believe this is mentioned in Documentation/RCU/rculist_nulls.txt Is it OK to overwrite ct->status? It seems that are some read and writes to it right after atomic_inc_not_zero.
