fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / net / sched / sch_api.c

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 9e315bc..65825f4 100644 (file)
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -15,7 +15,6 @@
  * Jamal Hadi Salim <hadi@nortelnetworks.com>: 990601: ingress support
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -192,21 +191,27 @@ int unregister_qdisc(struct Qdisc_ops *qops)
    (root qdisc, all its children, children of children etc.)
  */
 
-struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
+static struct Qdisc *__qdisc_lookup(struct net_device *dev, u32 handle)
 {
        struct Qdisc *q;
 
-       read_lock(&qdisc_tree_lock);
        list_for_each_entry(q, &dev->qdisc_list, list) {
-               if (q->handle == handle) {
-                       read_unlock(&qdisc_tree_lock);
+               if (q->handle == handle)
                        return q;
-               }
        }
-       read_unlock(&qdisc_tree_lock);
        return NULL;
 }
 
+struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
+{
+       struct Qdisc *q;
+
+       read_lock(&qdisc_tree_lock);
+       q = __qdisc_lookup(dev, handle);
+       read_unlock(&qdisc_tree_lock);
+       return q;
+}
+
 static struct Qdisc *qdisc_leaf(struct Qdisc *p, u32 classid)
 {
        unsigned long cl;
@@ -349,6 +354,26 @@ dev_graft_qdisc(struct net_device *dev, struct Qdisc *qdisc)
        return oqdisc;
 }
 
+void qdisc_tree_decrease_qlen(struct Qdisc *sch, unsigned int n)
+{
+       struct Qdisc_class_ops *cops;
+       unsigned long cl;
+       u32 parentid;
+
+       if (n == 0)
+               return;
+       while ((parentid = sch->parent)) {
+               sch = __qdisc_lookup(sch->dev, TC_H_MAJ(parentid));
+               cops = sch->ops->cl_ops;
+               if (cops->qlen_notify) {
+                       cl = cops->get(sch, parentid);
+                       cops->qlen_notify(sch, cl);
+                       cops->put(sch, cl);
+               }
+               sch->q.qlen -= n;
+       }
+}
+EXPORT_SYMBOL(qdisc_tree_decrease_qlen);
 
 /* Graft qdisc "new" to class "classid" of qdisc "parent" or
    to device "dev".
@@ -431,7 +456,7 @@ qdisc_create(struct net_device *dev, u32 handle, struct rtattr **tca, int *errp)
        }
 #endif
 
-       err = -EINVAL;
+       err = -ENOENT;
        if (ops == NULL)
                goto err_out;
 
@@ -1113,7 +1138,7 @@ int tc_classify(struct sk_buff *skb, struct tcf_proto *tp,
        struct tcf_result *res)
 {
        int err = 0;
-       u32 protocol = skb->protocol;
+       __be16 protocol = skb->protocol;
 #ifdef CONFIG_NET_CLS_ACT
        struct tcf_proto *otp = tp;
 reclassify:
@@ -1278,7 +1303,6 @@ static int __init pktsched_init(void)
 
 subsys_initcall(pktsched_init);
 
-EXPORT_SYMBOL(qdisc_lookup);
 EXPORT_SYMBOL(qdisc_get_rtab);
 EXPORT_SYMBOL(qdisc_put_rtab);
 EXPORT_SYMBOL(register_qdisc);