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-rw-r--r--include/net/sch_generic.h32
1 files changed, 23 insertions, 9 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 1c123e2b2415..236bfe5b2ffe 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NET_SCHED_GENERIC_H
#define __NET_SCHED_GENERIC_H
@@ -10,6 +11,7 @@
#include <linux/dynamic_queue_limits.h>
#include <linux/list.h>
#include <linux/refcount.h>
+#include <linux/workqueue.h>
#include <net/gen_stats.h>
#include <net/rtnetlink.h>
@@ -75,7 +77,6 @@ struct Qdisc {
struct hlist_node hash;
u32 handle;
u32 parent;
- void *u32_node;
struct netdev_queue *dev_queue;
@@ -101,6 +102,13 @@ struct Qdisc {
spinlock_t busylock ____cacheline_aligned_in_smp;
};
+static inline void qdisc_refcount_inc(struct Qdisc *qdisc)
+{
+ if (qdisc->flags & TCQ_F_BUILTIN)
+ return;
+ refcount_inc(&qdisc->refcnt);
+}
+
static inline bool qdisc_is_running(const struct Qdisc *qdisc)
{
return (raw_read_seqcount(&qdisc->running) & 1) ? true : false;
@@ -147,8 +155,7 @@ struct Qdisc_class_ops {
void (*qlen_notify)(struct Qdisc *, unsigned long);
/* Class manipulation routines */
- unsigned long (*get)(struct Qdisc *, u32 classid);
- void (*put)(struct Qdisc *, unsigned long);
+ unsigned long (*find)(struct Qdisc *, u32 classid);
int (*change)(struct Qdisc *, u32, u32,
struct nlattr **, unsigned long *);
int (*delete)(struct Qdisc *, unsigned long);
@@ -156,7 +163,6 @@ struct Qdisc_class_ops {
/* Filter manipulation */
struct tcf_block * (*tcf_block)(struct Qdisc *, unsigned long);
- bool (*tcf_cl_offload)(u32 classid);
unsigned long (*bind_tcf)(struct Qdisc *, unsigned long,
u32 classid);
void (*unbind_tcf)(struct Qdisc *, unsigned long);
@@ -213,16 +219,17 @@ struct tcf_proto_ops {
int (*init)(struct tcf_proto*);
void (*destroy)(struct tcf_proto*);
- unsigned long (*get)(struct tcf_proto*, u32 handle);
+ void* (*get)(struct tcf_proto*, u32 handle);
int (*change)(struct net *net, struct sk_buff *,
struct tcf_proto*, unsigned long,
u32 handle, struct nlattr **,
- unsigned long *, bool);
- int (*delete)(struct tcf_proto*, unsigned long, bool*);
+ void **, bool);
+ int (*delete)(struct tcf_proto*, void *, bool*);
void (*walk)(struct tcf_proto*, struct tcf_walker *arg);
+ void (*bind_class)(void *, u32, unsigned long);
/* rtnetlink specific */
- int (*dump)(struct net*, struct tcf_proto*, unsigned long,
+ int (*dump)(struct net*, struct tcf_proto*, void *,
struct sk_buff *skb, struct tcmsg*);
struct module *owner;
@@ -266,6 +273,7 @@ struct tcf_chain {
struct tcf_block {
struct list_head chain_list;
+ struct work_struct work;
};
static inline void qdisc_cb_private_validate(const struct sk_buff *skb, int sz)
@@ -394,6 +402,9 @@ qdisc_class_find(const struct Qdisc_class_hash *hash, u32 id)
struct Qdisc_class_common *cl;
unsigned int h;
+ if (!id)
+ return NULL;
+
h = qdisc_class_hash(id, hash->hashmask);
hlist_for_each_entry(cl, &hash->hash[h], hnode) {
if (cl->classid == id)
@@ -806,8 +817,11 @@ static inline struct Qdisc *qdisc_replace(struct Qdisc *sch, struct Qdisc *new,
old = *pold;
*pold = new;
if (old != NULL) {
- qdisc_tree_reduce_backlog(old, old->q.qlen, old->qstats.backlog);
+ unsigned int qlen = old->q.qlen;
+ unsigned int backlog = old->qstats.backlog;
+
qdisc_reset(old);
+ qdisc_tree_reduce_backlog(old, qlen, backlog);
}
sch_tree_unlock(sch);