• Cong Wang's avatar
    net_sched: get rid of tcfa_rcu · d7fb60b9
    Cong Wang authored
    gen estimator has been rewritten in commit 1c0d32fd
    ("net_sched: gen_estimator: complete rewrite of rate estimators"),
    the caller is no longer needed to wait for a grace period.
    So this patch gets rid of it.
    
    This also completely closes a race condition between action free
    path and filter chain add/remove path for the following patch.
    Because otherwise the nested RCU callback can't be caught by
    rcu_barrier().
    
    Please see also the comments in code.
    
    Cc: Jiri Pirko <jiri@mellanox.com>
    Cc: Jamal Hadi Salim <jhs@mojatatu.com>
    Cc: Eric Dumazet <edumazet@google.com>
    Signed-off-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    d7fb60b9
act_api.c 27.6 KB