net: sched: change name of zombie chain to "held_by_acts_only"
As mentioned by Cong and Jakub during the review process, it is a bit
odd to sometimes (act flow) create a new chain which would be
immediately a "zombie". So just rename it to "held_by_acts_only".
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index e20aad1..2f78341 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -272,11 +272,10 @@ static void tcf_chain_release_by_act(struct tcf_chain *chain)
--chain->action_refcnt;
}
-static bool tcf_chain_is_zombie(struct tcf_chain *chain)
+static bool tcf_chain_held_by_acts_only(struct tcf_chain *chain)
{
/* In case all the references are action references, this
- * chain is a zombie and should not be listed in the chain
- * dump list.
+ * chain should not be shown to the user.
*/
return chain->refcnt == chain->action_refcnt;
}
@@ -1838,10 +1837,9 @@ static int tc_ctl_chain(struct sk_buff *skb, struct nlmsghdr *n,
chain = tcf_chain_lookup(block, chain_index);
if (n->nlmsg_type == RTM_NEWCHAIN) {
if (chain) {
- if (tcf_chain_is_zombie(chain)) {
+ if (tcf_chain_held_by_acts_only(chain)) {
/* The chain exists only because there is
- * some action referencing it, meaning it
- * is a zombie.
+ * some action referencing it.
*/
tcf_chain_hold(chain);
} else {
@@ -1860,7 +1858,7 @@ static int tc_ctl_chain(struct sk_buff *skb, struct nlmsghdr *n,
}
}
} else {
- if (!chain || tcf_chain_is_zombie(chain)) {
+ if (!chain || tcf_chain_held_by_acts_only(chain)) {
NL_SET_ERR_MSG(extack, "Cannot find specified filter chain");
return -EINVAL;
}
@@ -1988,7 +1986,7 @@ static int tc_dump_chain(struct sk_buff *skb, struct netlink_callback *cb)
index++;
continue;
}
- if (tcf_chain_is_zombie(chain))
+ if (tcf_chain_held_by_acts_only(chain))
continue;
err = tc_chain_fill_node(chain, net, skb, block,
NETLINK_CB(cb->skb).portid,
