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authorJiri Pirko <jiri@mellanox.com>2017-11-03 11:46:24 +0100
committerDavid S. Miller <davem@davemloft.net>2017-11-03 21:57:23 +0900
commitc7eb7d7230509ec862d4144f7a831f995bc5d028 (patch)
treeb5a04d576966457b29dff194444e4aeb9fe6c5a8 /include/net
parentaa5fbf07541bbec0d79f4b32415aff2233971853 (diff)
net: sched: introduce chain_head_change callback
Add a callback that is to be called whenever head of the chain changes. Also provide a callback for the default case when the caller gets a block using non-extended getter. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/pkt_cls.h14
-rw-r--r--include/net/sch_generic.h5
2 files changed, 10 insertions, 9 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index d15c40c7bde7..505d4b71975f 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -26,6 +26,8 @@ enum tcf_block_binder_type {
struct tcf_block_ext_info {
enum tcf_block_binder_type binder_type;
+ tcf_chain_head_change_t *chain_head_change;
+ void *chain_head_change_priv;
};
struct tcf_block_cb;
@@ -37,12 +39,10 @@ struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
void tcf_chain_put(struct tcf_chain *chain);
int tcf_block_get(struct tcf_block **p_block,
struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q);
-int tcf_block_get_ext(struct tcf_block **p_block,
- struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q,
+int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q,
struct tcf_block_ext_info *ei);
void tcf_block_put(struct tcf_block *block);
-void tcf_block_put_ext(struct tcf_block *block,
- struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q,
+void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q,
struct tcf_block_ext_info *ei);
static inline struct Qdisc *tcf_block_q(struct tcf_block *block)
@@ -82,8 +82,7 @@ int tcf_block_get(struct tcf_block **p_block,
}
static inline
-int tcf_block_get_ext(struct tcf_block **p_block,
- struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q,
+int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q,
struct tcf_block_ext_info *ei)
{
return 0;
@@ -94,8 +93,7 @@ static inline void tcf_block_put(struct tcf_block *block)
}
static inline
-void tcf_block_put_ext(struct tcf_block *block,
- struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q,
+void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q,
struct tcf_block_ext_info *ei)
{
}
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index c23e938f5b19..f230269e0bfb 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -260,9 +260,12 @@ struct qdisc_skb_cb {
unsigned char data[QDISC_CB_PRIV_LEN];
};
+typedef void tcf_chain_head_change_t(struct tcf_proto *tp_head, void *priv);
+
struct tcf_chain {
struct tcf_proto __rcu *filter_chain;
- struct tcf_proto __rcu **p_filter_chain;
+ tcf_chain_head_change_t *chain_head_change;
+ void *chain_head_change_priv;
struct list_head list;
struct tcf_block *block;
u32 index; /* chain index */