net_sched: allow flushing tc police actions
The act_police uses its own code to walk the
action hashtable, which leads to that we could
not flush standalone tc police actions, so just
switch to tcf_generic_walker() like other actions.
(Joint work from Roman and Cong.)
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
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>
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 259352d..8a3be1d 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -63,49 +63,8 @@
const struct tc_action_ops *ops)
{
struct tc_action_net *tn = net_generic(net, police_net_id);
- struct tcf_hashinfo *hinfo = tn->hinfo;
- int err = 0, index = -1, i = 0, s_i = 0, n_i = 0;
- struct nlattr *nest;
- spin_lock_bh(&hinfo->lock);
-
- s_i = cb->args[0];
-
- for (i = 0; i < (POL_TAB_MASK + 1); i++) {
- struct hlist_head *head;
- struct tc_action *p;
-
- head = &hinfo->htab[tcf_hash(i, POL_TAB_MASK)];
-
- hlist_for_each_entry_rcu(p, head, tcfa_head) {
- index++;
- if (index < s_i)
- continue;
- nest = nla_nest_start(skb, index);
- if (nest == NULL)
- goto nla_put_failure;
- if (type == RTM_DELACTION)
- err = tcf_action_dump_1(skb, p, 0, 1);
- else
- err = tcf_action_dump_1(skb, p, 0, 0);
- if (err < 0) {
- index--;
- nla_nest_cancel(skb, nest);
- goto done;
- }
- nla_nest_end(skb, nest);
- n_i++;
- }
- }
-done:
- spin_unlock_bh(&hinfo->lock);
- if (n_i)
- cb->args[0] += n_i;
- return n_i;
-
-nla_put_failure:
- nla_nest_cancel(skb, nest);
- goto done;
+ return tcf_generic_walker(tn, skb, cb, type, ops);
}
static const struct nla_policy police_policy[TCA_POLICE_MAX + 1] = {