From: Cong Wang <xiyou.wangc...@gmail.com> Date: Mon, 4 Dec 2017 10:48:18 -0800
> Both Eric and Paolo noticed the rcu_barrier() we use in > tcf_block_put_ext() could be a performance bottleneck when > we have a lot of tc classes. > > Paolo provided the following to demonstrate the issue: ... > Tested-by: Paolo Abeni <pab...@redhat.com> > Cc: Eric Dumazet <eduma...@google.com> > Cc: Jiri Pirko <j...@mellanox.com> > Cc: Jamal Hadi Salim <j...@mojatatu.com> > Signed-off-by: Cong Wang <xiyou.wangc...@gmail.com> Applied.