These changes are a raw update to a vanilla kernel 4.1.10, with the

[kvmfornfv.git] / kernel / net / sched / act_api.c

diff --git a/kernel/net/sched/act_api.c b/kernel/net/sched/act_api.c
index 3d43e49..f8d9c2a 100644 (file)
--- a/kernel/net/sched/act_api.c
+++ b/kernel/net/sched/act_api.c
@@ -45,7 +45,7 @@ void tcf_hash_destroy(struct tc_action *a)
 }
 EXPORT_SYMBOL(tcf_hash_destroy);
 
-int tcf_hash_release(struct tc_action *a, int bind)
+int __tcf_hash_release(struct tc_action *a, bool bind, bool strict)
 {
        struct tcf_common *p = a->priv;
        int ret = 0;
@@ -53,7 +53,7 @@ int tcf_hash_release(struct tc_action *a, int bind)
        if (p) {
                if (bind)
                        p->tcfc_bindcnt--;
-               else if (p->tcfc_bindcnt > 0)
+               else if (strict && p->tcfc_bindcnt > 0)
                        return -EPERM;
 
                p->tcfc_refcnt--;
@@ -64,9 +64,10 @@ int tcf_hash_release(struct tc_action *a, int bind)
                        ret = 1;
                }
        }
+
        return ret;
 }
-EXPORT_SYMBOL(tcf_hash_release);
+EXPORT_SYMBOL(__tcf_hash_release);
 
 static int tcf_dump_walker(struct sk_buff *skb, struct netlink_callback *cb,
                           struct tc_action *a)
@@ -136,7 +137,7 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a)
                head = &hinfo->htab[tcf_hash(i, hinfo->hmask)];
                hlist_for_each_entry_safe(p, n, head, tcfc_head) {
                        a->priv = p;
-                       ret = tcf_hash_release(a, 0);
+                       ret = __tcf_hash_release(a, false, true);
                        if (ret == ACT_P_DELETED) {
                                module_put(a->ops->owner);
                                n_i++;
@@ -413,7 +414,7 @@ int tcf_action_destroy(struct list_head *actions, int bind)
        int ret = 0;
 
        list_for_each_entry_safe(a, tmp, actions, list) {
-               ret = tcf_hash_release(a, bind);
+               ret = __tcf_hash_release(a, bind, true);
                if (ret == ACT_P_DELETED)
                        module_put(a->ops->owner);
                else if (ret < 0)