1 files changed, 17 insertions, 3 deletions

diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index d89ebafd2239..f177649a2419 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -34,7 +34,10 @@ struct basic_filter {
         struct tcf_result       res;
         struct tcf_proto        *tp;
         struct list_head        link;
-        struct rcu_head         rcu;
+        union {
+                struct work_struct      work;
+                struct rcu_head         rcu;
+        };
 };
 
 static int basic_classify(struct sk_buff *skb, const struct tcf_proto *tp,
@@ -82,15 +85,26 @@ static int basic_init(struct tcf_proto *tp)
         return 0;
 }
 
-static void basic_delete_filter(struct rcu_head *head)
+static void basic_delete_filter_work(struct work_struct *work)
 {
-        struct basic_filter *f = container_of(head, struct basic_filter, rcu);
+        struct basic_filter *f = container_of(work, struct basic_filter, work);
 
+        rtnl_lock();
         tcf_exts_destroy(&f->exts);
         tcf_em_tree_destroy(&f->ematches);
+        rtnl_unlock();
+
         kfree(f);
 }
 
+static void basic_delete_filter(struct rcu_head *head)
+{
+        struct basic_filter *f = container_of(head, struct basic_filter, rcu);
+
+        INIT_WORK(&f->work, basic_delete_filter_work);
+        tcf_queue_work(&f->work);
+}
+
 static void basic_destroy(struct tcf_proto *tp)
 {
         struct basic_head *head = rtnl_dereference(tp->root);