net_sched: act: use tcf_hash_release() in net/sched/act_police.c

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 27 deletions

diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index a719fdff575e..5ba467b6124a 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -104,20 +104,6 @@ nla_put_failure:
         goto done;
 }
 
-static void tcf_police_destroy(struct tcf_police *p)
-{
-        spin_lock_bh(&police_hash_info.lock);
-        hlist_del(&p->tcf_head);
-        spin_unlock_bh(&police_hash_info.lock);
-        gen_kill_estimator(&p->tcf_bstats,
-                           &p->tcf_rate_est);
-        /*
-         * gen_estimator est_timer() might access p->tcf_lock
-         * or bstats, wait a RCU grace period before freeing p
-         */
-        kfree_rcu(p, tcf_rcu);
-}
-
 static const struct nla_policy police_policy[TCA_POLICE_MAX + 1] = {
         [TCA_POLICE_RATE]       = { .len = TC_RTAB_SIZE },
         [TCA_POLICE_PEAKRATE]   = { .len = TC_RTAB_SIZE },
@@ -272,19 +258,9 @@ failure:
 static int tcf_act_police_cleanup(struct tc_action *a, int bind)
 {
         struct tcf_police *p = a->priv;
-        int ret = 0;
-
-        if (p != NULL) {
-                if (bind)
-                        p->tcf_bindcnt--;
-
-                p->tcf_refcnt--;
-                if (p->tcf_refcnt <= 0 && !p->tcf_bindcnt) {
-                        tcf_police_destroy(p);
-                        ret = 1;
-                }
-        }
-        return ret;
+        if (p)
+                return tcf_hash_release(&p->common, bind, &police_hash_info);
+        return 0;
 }
 
 static int tcf_act_police(struct sk_buff *skb, const struct tc_action *a,